(load-relative "loadtest.ss")
(Section 'contract)

(parameterize ([error-print-width 200])
(let ()
  
  (define contract-namespace 
    (let ([n (make-base-namespace)])
      (parameterize ([current-namespace n])
        (namespace-require '(for-syntax scheme/base))
        (namespace-require '(for-template scheme/base))
        (namespace-require 'scheme/contract)
        (namespace-require '(only scheme/contract/private/arrow procedure-accepts-and-more?))
        (namespace-require 'scheme/class)
        (namespace-require 'scheme/promise))
      n))
  
  (define (contract-eval x)
    (parameterize ([current-namespace contract-namespace])
      (eval x)))
  
  (define-syntax (ctest stx)
    (syntax-case stx ()
      [(_ a ...)
       (syntax (contract-eval `(,test a ...)))]))

  (define (contract-error-test exp exn-ok?)
    (test #t 
          'contract-error-test 
          (contract-eval `(with-handlers ((exn? (λ (x) (and (,exn-ok? x) #t)))) ,exp))))
  
  ;; test/spec-passed : symbol sexp -> void
  ;; tests a passing specification
  (define (test/spec-passed name expression)
    (printf "testing: ~s\n" name)
    (contract-eval
     `(,test 
        (void)
        (let ([for-each-eval (lambda (l) (for-each eval l))]) for-each-eval)
        (list ',expression '(void))))
    (let/ec k
      (contract-eval
       `(,test (void)
          (let ([for-each-eval (lambda (l) (for-each (λ (x) (eval x)) l))])
            for-each-eval)
          (list ',(rewrite expression k) '(void))))))
  
  (define (test/spec-passed/result name expression result)
    (printf "testing: ~s\n" name)
    (contract-eval `(,test ',result eval ',expression))
    (let/ec k
      (contract-eval
       `(,test
          ',result
          eval
          ',(rewrite expression k)))))
  
  ;; rewrites `contract' to use opt/c. If there is a module definition in there, we skip that test.
  (define (rewrite exp k)
    (let loop ([exp exp])
      (cond
        [(null? exp) null]
        [(list? exp)
         (case (car exp)
           [(contract) `(contract (opt/c ,(loop (cadr exp))) ,@(map loop (cddr exp)))]
           [(module) (k #f)]
           [else (map loop exp)])]
        [(pair? exp) (cons (loop (car exp))
                           (loop (cdr exp)))]
        [else exp])))
  
  (define (test/spec-failed name expression blame)
    (let ()
      (define (has-proper-blame? msg)
        (equal?
         blame
         (cond
           [(regexp-match #rx"(^| )(.*) broke" msg) 
            =>
            (λ (x) (caddr x))]
           [else (format "no blame in error message: \"~a\"" msg)])))
      (printf "testing: ~s\n" name)
      (contract-eval
       `(,thunk-error-test 
          (lambda () ,expression)
          (datum->syntax #'here ',expression)
          (lambda (exn)
            (and (exn? exn)
                 (,has-proper-blame? (exn-message exn))))))
      (let/ec k
        (let ([rewritten (rewrite expression k)])
          (contract-eval
           `(,thunk-error-test 
             (lambda () ,rewritten)
             (datum->syntax #'here ',rewritten)
             (lambda (exn)
               (and (exn? exn)
                    (,has-proper-blame? (exn-message exn))))))))))
  
  (define (test/pos-blame name expression) (test/spec-failed name expression "pos"))
  (define (test/neg-blame name expression) (test/spec-failed name expression "neg"))
  
  (define (test/well-formed stx)
    (contract-eval
     `(,test (void) 
            (let ([expand/ret-void (lambda (x) (expand x) (void))]) expand/ret-void)
            ,stx)))
  
  (define (test/no-error sexp)
    (contract-eval
    `(,test (void)
       eval
       '(begin ,sexp (void)))))
  
  (define (test-flat-contract contract pass fail)
    (define (run-three-tests contract)
      (let ([name (if (pair? contract)
                      (car contract)
                      contract)])
        (contract-eval `(,test #t flat-contract? ,contract))
        (test/spec-failed (format "~a fail" name)
                          `(contract ,contract ',fail 'pos 'neg)
                          "pos")
        (test/spec-passed/result
         (format "~a pass" name)
         `(contract ,contract ',pass 'pos 'neg)
         pass)))
    (run-three-tests contract)
    (let/ec k (run-three-tests (rewrite contract k))))

  (define-syntax (test-name stx)
    (syntax-case stx ()
      [(_ name contract)
       #'(do-name-test 'name 'contract)]))
  
  (define (do-name-test name contract-exp)
    (printf "~s\n" (list 'do-name-test name contract-exp))
    (contract-eval `(,test ,name contract-name ,contract-exp))
    (contract-eval `(,test ,name contract-name (opt/c ,contract-exp))))
  
  (test/spec-passed
   'contract-flat1 
   '(contract not #f 'pos 'neg))
  
  (test/pos-blame
   'contract-flat2 
   '(contract not #t 'pos 'neg))

 
;                                                                                                    
;                                                                                                    
;                                                                                                    
;                                        ;                                ;    ;;                    
;                                       ;;                               ;;    ;;                    
;    ;;;;;   ;;;;   ;;;; ;;;   ;;;;;  ;;;;; ;;; ;;; ;;;; ;;;;   ;;;;;  ;;;;;        ;;;;   ;;;; ;;;  
;   ;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;; ;;;;;; ;;;;;;; ;;;; ;;;;  ;;;;;; ;;;;;; ;;;;  ;;;;;;  ;;;;;;;;; 
;  ;;;;;;; ;;;;;;;; ;;;; ;;;; ;;;;    ;;;;  ;;;; ;; ;;;; ;;;; ;;;;;;;  ;;;;  ;;;; ;;;;;;;; ;;;; ;;;; 
;  ;;;;    ;;;; ;;; ;;;; ;;;;  ;;;;   ;;;;  ;;;;    ;;;; ;;;; ;;;;     ;;;;  ;;;; ;;;; ;;; ;;;; ;;;; 
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;   ;;;;  ;;;;; ;;;;    ;;;; ;;;; ;;;;;;;  ;;;;; ;;;; ;;;;;;;; ;;;; ;;;; 
;   ;;;;;;  ;;;;;;  ;;;; ;;;; ;;;;;;  ;;;;; ;;;;    ;;;;;;;;;  ;;;;;;  ;;;;; ;;;;  ;;;;;;  ;;;; ;;;; 
;    ;;;;;   ;;;;   ;;;; ;;;; ;;;;;    ;;;; ;;;;     ;;; ;;;;   ;;;;;   ;;;; ;;;;   ;;;;   ;;;; ;;;; 
;                                                                                                    
;                                                                                                    
;                                                                                                    

  
  (test/no-error '(-> integer? integer?))
  (test/no-error '(-> (flat-contract integer?) (flat-contract integer?)))
  (test/no-error '(-> integer? any))
  (test/no-error '(-> (flat-contract integer?) any))
  
  (test/no-error '(->* (integer?) () (values integer?)))
  (test/no-error '(->* (integer?) () #:rest integer? integer?))
  (test/no-error '(->* (integer?) () #:rest integer? any))
  (test/no-error '(->* ((flat-contract integer?)) () (flat-contract integer?)))
  (test/no-error '(->* ((flat-contract integer?)) () #:rest (flat-contract integer?) (flat-contract integer?)))
  (test/no-error '(->* ((flat-contract integer?)) () #:rest (flat-contract integer?) 
                       (values (flat-contract integer?) (flat-contract boolean?))))
  (test/no-error '(->* ((flat-contract integer?)) () #:rest (flat-contract integer?) any))
  
  (test/no-error '(->d ([x integer?]) ([y integer?]) any))
  (test/no-error '(->d ([x integer?]) ([y integer?]) (values [a number?] [b boolean?])))
  (test/no-error '(->d ([x integer?] #:z [z integer?]) ([y integer?] #:w [w integer?]) (range boolean?)))
  (test/no-error '(->d ([x integer?] #:z [z integer?]) ([y integer?] #:w [w integer?]) #:rest rest any/c (range boolean?)))

  (test/no-error '(unconstrained-domain-> number?))
  (test/no-error '(unconstrained-domain-> (flat-contract number?)))
  
  (test/no-error '(listof any/c))
  (test/no-error '(listof (lambda (x) #t)))
  (test/no-error '(non-empty-listof any/c))
  (test/no-error '(non-empty-listof (lambda (x) #t)))

  
  (test/no-error '(list/c 'x "x" #t #f #\c #rx"a" #rx#"b"))

  

;                                                                                      
;                                                                                      
;                                                                                      
;                                     ;;;;                                             
;                                    ;;;;;;                                            
;  ;;;;;;;  ;;;; ;;;  ;;;  ;;;       ;;; ;;       ;;;; ;;;    ;;;;   ;;;; ;;;    ;;;   
;  ;;;;;;;; ;;;;;;;;; ;;; ;;;;       ;;;;;        ;;;;;;;;;  ;;;;;;  ;;;;;;;;;  ;;;;;  
;      ;;;; ;;;; ;;;;  ;;;;;;         ;;; ;;;     ;;;; ;;;; ;;;;;;;; ;;;; ;;;; ;;;; ;; 
;   ;;;;;;; ;;;; ;;;;  ;;;;;;        ;;;;;;;      ;;;; ;;;; ;;;; ;;; ;;;; ;;;; ;;;;;;; 
;  ;;  ;;;; ;;;; ;;;;   ;;;;;       ;;; ;;;;      ;;;; ;;;; ;;;;;;;; ;;;; ;;;; ;;;;;   
;  ;;;;;;;; ;;;; ;;;;   ;;;;        ;;;;;;;;;     ;;;; ;;;;  ;;;;;;  ;;;; ;;;;  ;;;;;; 
;   ;; ;;;; ;;;; ;;;;   ;;;;         ;;;;  ;;;    ;;;; ;;;;   ;;;;   ;;;; ;;;;   ;;;;  
;                      ;;;;                                                            
;                      ;;;;                                                            
;                                                                                      

  
  (test/spec-passed/result 'any/c '(contract any/c 1 'pos 'neg) 1)
  (test/pos-blame 'none/c '(contract none/c 1 'pos 'neg))
  
  
;                        
;                        
;                        
;                  ;;;   
;        ;       ; ;;; ; 
;        ;;;    ;;;;;;;;;
;         ;;;;   ;;;;;;; 
;           ;;;  ;;;;;;; 
;  ;;;;;    ;;; ;;;;;;;;;
;  ;;;;;  ;;;;   ; ;;; ; 
;        ;;;       ;;;   
;        ;               
;                        
;                        
;                        

  
  (test/spec-passed
   'contract-arrow-star0a
   '(contract (->* (integer?) () integer?)
              (lambda (x) x)
              'pos
              'neg))
  
  (test/neg-blame
   'contract-arrow-star0b
   '((contract (->* (integer?) () integer?)
               (lambda (x) x)
               'pos
               'neg)
     #f))
  
  (test/pos-blame
   'contract-arrow-star0c
   '((contract (->* (integer?) () integer?)
               (lambda (x) #f)
               'pos
               'neg)
     1))
  
  (test/spec-passed
   'contract-arrow-star1
   '(let-values ([(a b) ((contract (->* (integer?) () (values integer? integer?))
                                   (lambda (x) (values x x))
                                   'pos
                                   'neg)
                         2)])
      1))
  
  (test/neg-blame
   'contract-arrow-star2
   '((contract (->* (integer?) () (values integer? integer?))
               (lambda (x) (values x x))
               'pos
               'neg)
     #f))
  
  (test/pos-blame
   'contract-arrow-star3
   '((contract (->* (integer?) () (values integer? integer?))
               (lambda (x) (values 1 #t))
               'pos
               'neg)
     1))
  
  (test/pos-blame
   'contract-arrow-star4
   '((contract (->* (integer?) () (values integer? integer?))
               (lambda (x) (values #t 1))
               'pos
               'neg)
     1))
  
  
  (test/spec-passed
   'contract-arrow-star5
   '(let-values ([(a b) ((contract (->* (integer?) () 
                                        #:rest (listof integer?)
                                        (values integer? integer?))
                                   (lambda (x . y) (values x x))
                                   'pos
                                   'neg)
                         2)])
      1))
  
  (test/neg-blame
   'contract-arrow-star6
   '((contract (->* (integer?) () #:rest (listof integer?) (values integer? integer?))
               (lambda (x . y) (values x x))
               'pos
               'neg)
     #f))
  
  (test/pos-blame
   'contract-arrow-star7
   '((contract (->* (integer?) () #:rest (listof integer?) (values integer? integer?))
               (lambda (x . y) (values 1 #t))
               'pos
               'neg)
     1))
  
  (test/pos-blame
   'contract-arrow-star8
   '((contract (->* (integer?) () #:rest (listof integer?) (values integer? integer?))
               (lambda (x) (values #t 1))
               'pos
               'neg)
     1))
  
  (test/spec-passed
   'contract-arrow-star9
   '((contract (->* (integer?) () #:rest (listof integer?) integer?)
               (lambda (x . y) 1)
               'pos
               'neg)
     1 2))
  
  (test/neg-blame
   'contract-arrow-star10
   '((contract (->* (integer?) () #:rest (listof integer?) integer?)
               (lambda (x . y) 1)
               'pos
               'neg)
     1 2 'bad))
  
  (test/spec-passed
   'contract-arrow-star11
   '(let-values ([(a b) ((contract (->* (integer?) () 
                                        #:rest (listof integer?)
					any)
                                   (lambda (x . y) (values x x))
                                   'pos
                                   'neg)
                         2)])
      1))
  
  (test/pos-blame
   'contract-arrow-star11b
   '(let-values ([(a b) ((contract (->* (integer?) () 
                                        #:rest (listof integer?)
					any)
                                   (lambda (x) (values x x))
                                   'pos
                                   'neg)
                         2)])
      1))
  
  (test/neg-blame
   'contract-arrow-star12
   '((contract (->* (integer?) () #:rest (listof integer?) any)
               (lambda (x . y) (values x x))
               'pos
               'neg)
     #f))
  
  (test/spec-passed
   'contract-arrow-star13
   '((contract (->* (integer?) () #:rest (listof integer?) any)
               (lambda (x . y) 1)
               'pos
               'neg)
     1 2))
  
  (test/neg-blame
   'contract-arrow-star14
   '((contract (->* (integer?) () #:rest (listof integer?) any)
               (lambda (x . y) 1)
               'pos
               'neg)
     1 2 'bad))
  
  (test/spec-passed
   'contract-arrow-star15
   '(let-values ([(a b) ((contract (->* (integer?) () any)
                                   (lambda (x) (values x x))
                                   'pos
                                   'neg)
                         2)])
      1))
  
  (test/spec-passed
   'contract-arrow-star16
   '((contract (->* (integer?) () any)
               (lambda (x) x)
               'pos
               'neg)
     2))
  
  (test/neg-blame
   'contract-arrow-star17
   '((contract (->* (integer?) () any)
               (lambda (x) (values x x))
               'pos
               'neg)
     #f))

  (test/pos-blame
   'contract-arrow-star-arity-check1
   '(contract (->* (integer?) () #:rest (listof integer?) (values integer? integer?))
              (lambda (x) (values 1 #t))
              'pos
              'neg))
  
  (test/pos-blame
   'contract-arrow-star-arity-check2
   '(contract (->* (integer?) () #:rest (listof integer?) (values integer? integer?))
              (lambda (x y) (values 1 #t))
              'pos
              'neg))
  
  (test/pos-blame
   'contract-arrow-star-arity-check3
   '(contract (->* (integer?) () #:rest (listof integer?) (values integer? integer?))
              (case-lambda [(x y) #f] [(x y . z) #t])
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-star-arity-check4
   '(contract (->* (integer?) () #:rest (listof integer?) (values integer? integer?))
              (case-lambda [(x y) #f] [(x y . z) #t] [(x) #f])
              'pos
              'neg))
  
  (test/pos-blame
   'contract-arrow-star-keyword1
   '(contract (->* (integer?) () #:rest (listof integer?) (values integer?))
              (λ (x #:y y . args) x)
              'pos
              'neg))
  
  (test/pos-blame
   'contract-arrow-star-keyword2
   '(contract (->* (integer?) () #:rest (listof integer?) any)
              (λ (x #:y y . args) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-star-keyword3
   '(contract (->* (integer? #:y integer?) () #:rest (listof integer?) (values integer? integer?))
              (λ (x #:y y . args) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-star-keyword4
   '(contract (->* (integer? #:y integer?) () #:rest (listof integer?) any)
              (λ (x #:y y . args) x)
              'pos
              'neg))
  
  (test/neg-blame
   'contract-arrow-star-keyword5
   '((contract (->* (integer? #:y integer?) () #:rest (listof integer?) (values integer? integer?))
               (λ (x #:y y . args) x)
               'pos
               'neg)
     1 #:y #t))
  
  (test/neg-blame
   'contract-arrow-star-keyword6
   '((contract (->* (integer? #:y integer?) () #:rest (listof integer?) any)
               (λ (x #:y y . args) x)
               'pos
               'neg)
     1 #:y #t))
  
  (test/neg-blame
   'contract-arrow-star-keyword7
   '((contract (->* (integer? #:y integer?) () #:rest (listof integer?) (values integer? integer?))
               (λ (x #:y y . args) x)
               'pos
               'neg)
     #t #:y 1))
  
  (test/neg-blame
   'contract-arrow-star-keyword8
   '((contract (->* (integer? #:y integer?) () #:rest (listof integer?) any)
               (λ (x #:y y . args) x)
               'pos
               'neg)
     #t #:y 1))
  
  (test/spec-passed
   'contract-arrow-star-keyword9
   '((contract (->* (integer? #:y integer?) () #:rest (listof integer?) (values integer? integer?))
               (λ (x #:y y . args) (values x x))
               'pos
               'neg)
     2 #:y 1))
  
  (test/spec-passed
   'contract-arrow-star-keyword10
   '((contract (->* (integer? #:y integer?) () #:rest (listof integer?) any)
               (λ (x #:y y . args) (values x x))
               'pos
               'neg)
     2 #:y 1))

  (test/spec-passed
   'contract-arrow-star-optional1
   '(contract (->* (#:x boolean?) (#:y string? #:z char? integer?) any)
              (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                (list x s c i))
              'pos 'neg))
  
  (test/pos-blame
   'contract-arrow-star-optional2
   '(contract (->* (#:x boolean?) (#:y string? #:z char? integer?) any)
              (λ (#:x x #:z [c #\c] [i 5])
                (list x s c i))
              'pos 'neg))
  
  (test/spec-passed
   'contract-arrow-star-optional3
   '(contract (->* (#:x boolean?) (#:z char? integer?) any)
              (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                (list x s c i))
              'pos 'neg))
  
  (test/pos-blame
   'contract-arrow-star-optional4
   '(contract (->* (#:x boolean?) (#:y string? #:z char? integer?) any)
              (λ (#:x x #:y [s "s"] #:z [c #\c])
                (list x s c i))
              'pos 'neg))
  
  (test/spec-passed/result
   'contract-arrow-star-optional5
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) any)
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t #:y "" #:z #\d 6)
   '(#t "" #\d 6))
  
  (test/spec-passed/result
   'contract-arrow-star-optional6
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) any)
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t)
   '(#t "s" #\c 5))
  
  (test/neg-blame
   'contract-arrow-star-optional7
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) any)
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t #:y 'x #:z #\d 6))
  
  (test/neg-blame
   'contract-arrow-star-optional8
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) any)
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t #:y "" #:z 'x 6))
  
  (test/neg-blame
   'contract-arrow-star-optional9
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) any)
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t #:y "" #:z #\d 'x))
  
  (test/pos-blame
   'contract-arrow-star-optional10
   '(contract (->* (#:x boolean?) (#:y string?) any)
              (λ (#:x [x #f] #:y s)
                (list x s c i))
              'pos 'neg))

  (test/spec-passed
   'contract-arrow-star-optional11
   '(contract (->* (#:x boolean?) (#:y string? #:z char? integer?) (list/c boolean? string? char? integer?))
              (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                (list x s c i))
              'pos 'neg))
  
  (test/pos-blame
   'contract-arrow-star-optional12
   '(contract (->* (#:x boolean?) (#:y string? #:z char? integer?) (list/c boolean? string? char? integer?))
              (λ (#:x x #:z [c #\c] [i 5])
                (list x s c i))
              'pos 'neg))
  
  (test/spec-passed
   'contract-arrow-star-optional13
   '(contract (->* (#:x boolean?) (#:z char? integer?) (list/c boolean? string? char? integer?))
              (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                (list x s c i))
              'pos 'neg))
  
  (test/pos-blame
   'contract-arrow-star-optional14
   '(contract (->* (#:x boolean?) (#:y string? #:z char? integer?) (list/c boolean? string? char? integer?))
              (λ (#:x x #:y [s "s"] #:z [c #\c])
                (list x s c i))
              'pos 'neg))
  
  (test/spec-passed/result
   'contract-arrow-star-optional15
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) (list/c boolean? string? char? integer?))
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t #:y "" #:z #\d 6)
   '(#t "" #\d 6))
  
  (test/spec-passed/result
   'contract-arrow-star-optional16
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) (list/c boolean? string? char? integer?))
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t)
   '(#t "s" #\c 5))
  
  (test/neg-blame
   'contract-arrow-star-optional17
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) (list/c boolean? string? char? integer?))
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t #:y 'x #:z #\d 6))
  
  (test/neg-blame
   'contract-arrow-star-optional18
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) (list/c boolean? string? char? integer?))
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t #:y "" #:z 'x 6))
  
  (test/neg-blame
   'contract-arrow-star-optional19
   '((contract (->* (#:x boolean?) (#:y string? #:z char? integer?) (list/c boolean? string? char? integer?))
               (λ (#:x x #:y [s "s"] #:z [c #\c] [i 5])
                 (list x s c i))
               'pos 'neg)
     #:x #t #:y "" #:z #\d 'x))
  
  (test/pos-blame
   'contract-arrow-star-optional20
   '(contract (->* (#:x boolean?) (#:y string?) (list/c boolean? string? char? integer?))
              (λ (#:x [x #f] #:y s)
                (list x s c i))
              'pos 'neg))
  
  (test/spec-passed
   'contract-arrow-star-optional21
   '((contract (->* () () (values))
               (λ () (values))
               'pos 'neg)))
  
  (test/spec-passed
   'contract-arrow-star-optional22
   '((contract (->* () () (values integer? char?))
               (λ () (values 1 #\c))
               'pos 'neg)))
  
  (test/pos-blame
   'contract-arrow-star-optional23
   '((contract (->* () () (values integer? char?))
               (λ () (values 1 2))
               'pos 'neg)))
  
  (test/spec-passed
   'contract-arrow-star-keyword-ordering
   '((contract (->* (integer? #:x boolean?) (string? #:y char?) any)
               (λ (x #:x b [s ""] #:y [c #\c])
                 (list x b s c))
               'pos
               'neg)
     1 "zz" #:x #f #:y #\d))
  
  
;               
;               
;               
;               
;        ;      
;        ;;;    
;         ;;;;  
;           ;;; 
;  ;;;;;    ;;; 
;  ;;;;;  ;;;;  
;        ;;;    
;        ;      
;               
;               
;               

  
  (test/spec-passed
   'contract-arrow-values1
   '(let-values ([(a b) ((contract (-> integer? (values integer? integer?))
                                   (lambda (x) (values x x))
                                   'pos
                                   'neg)
                         2)])
      1))
  
  (test/neg-blame
   'contract-arrow-values2
   '((contract (-> integer? (values integer? integer?))
               (lambda (x) (values x x))
               'pos
               'neg)
     #f))
  
  (test/pos-blame
   'contract-arrow-values3
   '((contract (-> integer? (values integer? integer?))
               (lambda (x) (values 1 #t))
               'pos
               'neg)
     1))
  
  (test/pos-blame
   'contract-arrow-values4
   '((contract (-> integer? (values integer? integer?))
               (lambda (x) (values #t 1))
               'pos
               'neg)
     1))

  (test/pos-blame
   'contract-arrow-keyword1
   '(contract (-> integer? any)
              (λ (x #:y y) x)
              'pos
              'neg))
  
  (test/pos-blame
   'contract-arrow-keyword1b
   '(contract (-> integer? #:y integer? any)
              (λ (x) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-keyword2
   '(contract (-> integer? #:y boolean? any)
              (λ (x #:y y) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-keyword2b
   '(contract (-> #:x boolean? #:y boolean? any)
              (λ (#:x x #:y y) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-keyword2c
   '(contract (-> #:y boolean? #:x boolean? any)
              (λ (#:x x #:y y) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-keyword2d
   '(contract (-> #:y boolean? #:x boolean? any)
              (λ (#:y y #:x x) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-keyword2e
   '(contract (-> #:x boolean? #:y boolean?  any)
              (λ (#:y y #:x x) x)
              'pos
              'neg))
  
  (test/neg-blame
   'contract-arrow-keyword3
   '((contract (-> integer? #:y boolean? any)
               (λ (x #:y y) x)
               'pos
               'neg)
     1 #:y 1))
  
  (test/neg-blame
   'contract-arrow-keyword4
   '((contract (-> integer? #:y boolean? any)
               (λ (x #:y y) x)
               'pos
               'neg)
     #t #:y #t))
  
  (test/spec-passed
   'contract-arrow-keyword5
   '((contract (-> integer? #:y boolean? any)
               (λ (x #:y y) x)
               'pos
               'neg)
     1 #:y #t))
  
  (test/pos-blame
   'contract-arrow-keyword6
   '(contract (-> integer? integer?)
              (λ (x #:y y) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-keyword7
   '(contract (-> integer? #:y boolean? integer?)
              (λ (x #:y y) x)
              'pos
              'neg))
  
  (test/neg-blame
   'contract-arrow-keyword8
   '((contract (-> integer? #:y boolean? integer?)
               (λ (x #:y y) x)
               'pos
               'neg)
     1 #:y 1))
  
  (test/neg-blame
   'contract-arrow-keyword9
   '((contract (-> integer? #:y boolean? integer?)
               (λ (x #:y y) x)
               'pos
               'neg)
     #t #:y #t))
  
  (test/spec-passed
   'contract-arrow-keyword10
   '((contract (-> integer? #:y boolean? integer?)
               (λ (x #:y y) x)
               'pos
               'neg)
     1 #:y #t))
  
  (test/pos-blame
   'contract-arrow-keyword11
   '(contract (-> integer? (values integer? integer?))
              (λ (x #:y y) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-arrow-keyword12
   '(contract (-> integer? #:y boolean? (values integer? integer?))
              (λ (x #:y y) x)
              'pos
              'neg))
  
  (test/neg-blame
   'contract-arrow-keyword13
   '((contract (-> integer? #:y boolean? (values integer? integer?))
               (λ (x #:y y) x)
               'pos
               'neg)
     1 #:y 1))
  
  (test/neg-blame
   'contract-arrow-keyword14
   '((contract (-> integer? #:y boolean? (values integer? integer?))
               (λ (x #:y y) x)
               'pos
               'neg)
     #t #:y #t))
  
  (test/spec-passed
   'contract-arrow-keyword15
   '((contract (-> integer? #:y boolean? (values integer? integer?))
               (λ (x #:y y) (values x x))
               'pos
               'neg)
     1 #:y #t))

  (test/spec-passed
   'contract-arrow1
   '(contract (integer? . -> . integer?) (lambda (x) x) 'pos 'neg))
  
  ;; make sure we skip the optimizations
  (test/spec-passed
   'contract-arrow1b
   '(contract (integer? integer? integer? integer? integer? integer? integer? integer? integer? integer? . -> . integer?) 
              (lambda (x1 x2 x3 x4 x5 x6 x7 x8 x9 x10) x1) 'pos 'neg))
  
  (test/pos-blame
   'contract-arrow2
   '(contract (integer? . -> . integer?) (lambda (x y) x) 'pos 'neg))
  
  (test/neg-blame
   'contract-arrow3
   '((contract (integer? . -> . integer?) (lambda (x) #f) 'pos 'neg) #t))
  
  (test/pos-blame
   'contract-arrow4
   '((contract (integer? . -> . integer?) (lambda (x) #f) 'pos 'neg) 1))


  (test/spec-passed
   'contract-arrow-any1
   '(contract (integer? . -> . any) (lambda (x) x) 'pos 'neg))
  
  (test/pos-blame
   'contract-arrow-any2
   '(contract (integer? . -> . any) (lambda (x y) x) 'pos 'neg))
  
  (test/neg-blame
   'contract-arrow-any3
   '((contract (integer? . -> . any) (lambda (x) #f) 'pos 'neg) #t))

  
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;;
  ;; procedure accepts-and-more
  ;;
  
  (ctest #t procedure-accepts-and-more? (lambda (x . y) 1) 3)
  (ctest #t procedure-accepts-and-more? (lambda (x . y) 1) 2)
  (ctest #t procedure-accepts-and-more? (lambda (x . y) 1) 1)
  (ctest #f procedure-accepts-and-more? (lambda (x . y) 1) 0)
  
  (ctest #t procedure-accepts-and-more? (case-lambda [(x . y) 1] [(y) 1]) 3)
  (ctest #t procedure-accepts-and-more? (case-lambda [(x . y) 1] [(y) 1]) 2)
  (ctest #t procedure-accepts-and-more? (case-lambda [(x . y) 1] [(y) 1]) 1)
  (ctest #f procedure-accepts-and-more? (case-lambda [(x . y) 1] [(y) 1]) 0)
       
  (ctest #t procedure-accepts-and-more? (case-lambda [(x y . z) 1] [(x) 1]) 2)
  (ctest #t procedure-accepts-and-more? (case-lambda [(x y . z) 1] [(x) 1]) 1)
  (ctest #f procedure-accepts-and-more? (case-lambda [(x y . z) 1] [(x) 1]) 0)
  

;                         
;                         
;                         
;                    ;;;; 
;        ;           ;;;; 
;        ;;;      ;;;;;;; 
;         ;;;;   ;;;;;;;; 
;           ;;; ;;;;;;;;; 
;  ;;;;;    ;;; ;;;; ;;;; 
;  ;;;;;  ;;;;  ;;;;;;;;; 
;        ;;;     ;;;;;;;; 
;        ;        ;;;;;;; 
;                         
;                         
;                         

  (test/spec-passed
   '->d1
   '((contract (->d () () [x number?]) (lambda () 1) 'pos 'neg)))
  
  (test/spec-passed
   '->d2
   '((contract (->d ([x number?]) () (values [r number?])) (lambda (x) (+ x 1)) 'pos 'neg) 1))

  (test/pos-blame
   '->d3
   '((contract (->d () () [r number?]) 1 'pos 'neg)))
  
  (test/pos-blame
   '->d4
   '((contract (->d () () [r number?]) (lambda (x) x) 'pos 'neg)))
  
  (test/neg-blame
   '->d5
   '((contract (->d ([x number?]) () any) (lambda (x) (+ x 1)) 'pos 'neg) #f))
  
  (test/pos-blame
   '->d6
   '((contract (->d ([x number?]) () [r (<=/c x)]) (lambda (x) (+ x 1)) 'pos 'neg) 1))
  
  (test/spec-passed
   '->d7
   '((contract (->d ([x number?] [y (<=/c x)]) () [r (<=/c x)]) (lambda (x y) (- x 1)) 'pos 'neg) 1 0))
  
  (test/neg-blame
   '->d8
   '((contract (->d ([x number?] [y (<=/c x)]) () [r (<=/c x)]) (lambda (x y) (+ x 1)) 'pos 'neg) 1 2))
  
  (test/spec-passed
   '->d9
   '((contract (->d ([y (<=/c x)] [x number?]) () [r (<=/c x)]) (lambda (y x) (- x 1)) 'pos 'neg) 1 2))
  
  (test/neg-blame
   '->d10
   '((contract (->d ([y (<=/c x)] [x number?]) () [r (<=/c x)]) (lambda (y x) (+ x 1)) 'pos 'neg) 1 0))

  (test/spec-passed
   '->d11
   '((contract (->d () () #:rest rest any/c [r number?]) (lambda x 1) 'pos 'neg)))
  
  (test/spec-passed
   '->d12
   '((contract (->d ([x number?]) () #:rest rest any/c [r number?]) (lambda (x . y) (+ x 1)) 'pos 'neg) 1))

  (test/pos-blame
   '->d13
   '((contract (->d () () #:rest rest any/c [r number?]) 1 'pos 'neg)))
  
  (test/pos-blame
   '->d14
   '((contract (->d () () #:rest rest any/c [r number?]) (lambda (x) x) 'pos 'neg)))
  
  (test/neg-blame
   '->d15
   '((contract (->d ([x number?]) () #:rest rest any/c any) (lambda (x . y) (+ x 1)) 'pos 'neg) #f))
  
  (test/pos-blame
   '->d16
   '((contract (->d ([x number?]) () #:rest rest any/c [r (<=/c x)]) (lambda (x . y) (+ x 1)) 'pos 'neg) 1))
  
  (test/spec-passed
   '->d17
   '((contract (->d ([x number?] [y (<=/c x)]) () #:rest rest any/c [r (<=/c x)]) (lambda (x y . z) (- x 1)) 'pos 'neg) 1 0))
  
  (test/neg-blame
   '->d18
   '((contract (->d ([x number?] [y (<=/c x)]) () #:rest rest any/c [r (<=/c x)]) (lambda (x y . z) (+ x 1)) 'pos 'neg) 1 2))
  
  (test/spec-passed
   '->d19
   '((contract (->d ([y (<=/c x)] [x number?]) () #:rest rest any/c [r (<=/c x)]) (lambda (y x . z) (- x 1)) 'pos 'neg) 1 2))
  
  (test/neg-blame
   '->d20
   '((contract (->d ([y (<=/c x)] [x number?]) () #:rest rest any/c [r (<=/c x)]) (lambda (y x . z) (+ x 1)) 'pos 'neg) 1 0))

  (test/spec-passed
   '->d21
   '((contract (->d () () #:rest rst (listof number?) [r any/c]) (lambda w 1) 'pos 'neg) 1))
  
  (test/neg-blame
   '->d22
   '((contract (->d () () #:rest rst (listof number?) [r any/c]) (lambda w 1) 'pos 'neg) #f))
  
  (test/spec-passed
   '->d-any1
   '((contract (->d () () any) (lambda () 1) 'pos 'neg)))
  
  (test/spec-passed
   '->d-any2
   '((contract (->d ([x number?]) () any) (lambda (x) (+ x 1)) 'pos 'neg) 1))

  (test/pos-blame
   '->d-any3
   '((contract (->d () () any) 1 'pos 'neg)))
  
  (test/pos-blame
   '->d-any4
   '((contract (->d () () any) (lambda (x) x) 'pos 'neg)))
  
  (test/neg-blame
   '->d-any5
   '((contract (->d ([x number?]) () any) (lambda (x) (+ x 1)) 'pos 'neg) #f))
  
  (test/spec-passed
   '->d-any6
   '((contract (->d ([x number?] [y (<=/c x)]) () any) (lambda (x y) (- x 1)) 'pos 'neg) 1 0))
  
  (test/neg-blame
   '->d-any7
   '((contract (->d ([x number?] [y (<=/c x)]) () any) (lambda (x y) (+ x 1)) 'pos 'neg) 1 2))
  
  (test/spec-passed
   '->d-any8
   '((contract (->d ([y (<=/c x)] [x number?]) () any) (lambda (y x) (- x 1)) 'pos 'neg) 1 2))
  
  (test/neg-blame
   '->d-any9
   '((contract (->d ([y (<=/c x)] [x number?]) () any) (lambda (y x) (+ x 1)) 'pos 'neg) 1 0))
  
  (test/spec-passed
   '->d-any10
   '((contract (->d () () #:rest rest any/c any) (lambda x 1) 'pos 'neg)))
  
  (test/spec-passed
   '->d-any11
   '((contract (->d ([x number?]) () #:rest rest any/c any) (lambda (x . y) (+ x 1)) 'pos 'neg) 1))

  (test/pos-blame
   '->d-any12
   '((contract (->d () () #:rest rest any/c any) 1 'pos 'neg)))
  
  (test/pos-blame
   '->d-any13
   '((contract (->d () () #:rest rest any/c any) (lambda (x) x) 'pos 'neg)))
  
  (test/neg-blame
   '->d-any14
   '((contract (->d ([x number?]) () #:rest rest any/c any) (lambda (x . y) (+ x 1)) 'pos 'neg) #f))
  
  (test/spec-passed
   '->d-any15
   '((contract (->d ([x number?] [y (<=/c x)]) () #:rest rest any/c any) (lambda (x y . z) (- x 1)) 'pos 'neg) 1 0))
  
  (test/neg-blame
   '->d-any16
   '((contract (->d ([x number?] [y (<=/c x)]) () #:rest rest any/c any) (lambda (x y . z) (+ x 1)) 'pos 'neg) 1 2))
  
  (test/spec-passed
   '->d-any17
   '((contract (->d ([y (<=/c x)] [x number?]) () #:rest rest any/c any) (lambda (y x . z) (- x 1)) 'pos 'neg) 1 2))
  
  (test/neg-blame
   '->d-any18
   '((contract (->d ([y (<=/c x)] [x number?]) () #:rest rest any/c any) (lambda (y x . z) (+ x 1)) 'pos 'neg) 1 0))

  (test/spec-passed
   '->d-any19
   '((contract (->d () () #:rest rst (listof number?) any) (lambda w 1) 'pos 'neg) 1))
  
  (test/neg-blame
   '->d-any20
   '((contract (->d () () #:rest rst (listof number?) any) (lambda w 1) 'pos 'neg) #f))

  (test/spec-passed
   '->d-values1
   '((contract (->d () () (values [x boolean?] [y number?])) (lambda () (values #t 1)) 'pos 'neg)))
  
  (test/spec-passed
   '->d-values2
   '((contract (->d ([x number?]) () (values [z boolean?] [y number?])) (lambda (x) (values #t (+ x 1))) 'pos 'neg) 1))

  (test/pos-blame
   '->d-values3
   '((contract (->d () () (values [x boolean?] [y number?])) 1 'pos 'neg)))
  
  (test/pos-blame
   '->d-values4
   '((contract (->d () () (values [x boolean?] [y number?])) (lambda (x) x) 'pos 'neg)))
  
  (test/neg-blame
   '->d-values5
   '((contract (->d ([x number?]) () (values [y boolean?] [z (<=/c x)])) (lambda (x) (+ x 1)) 'pos 'neg) #f))
  
  (test/pos-blame
   '->d-values6
   '((contract (->d ([x number?]) () (values [y boolean?] [z (<=/c x)])) (lambda (x) (values #t (+ x 1))) 'pos 'neg) 1))
  
  (test/spec-passed
   '->d-values7
   '((contract (->d ([x number?] [y (<=/c x)]) () (values [z boolean?] [w (<=/c x)])) 
               (lambda (x y) (values #t (- x 1)))
               'pos
               'neg) 
     1
     0))
  
  (test/neg-blame
   '->d-values8
   '((contract (->d ([x number?] [y (<=/c x)]) () (values [z boolean?] [w (<=/c x)])) 
               (lambda (x y) (values #f (+ x 1)))
               'pos
               'neg)
     1
     2))
  
  (test/spec-passed
   '->d-values9
   '((contract (->d ([y (<=/c x)] [x number?]) () (values [z boolean?] [w (<=/c x)]))
               (lambda (y x) (values #f (- x 1)))
               'pos 
               'neg)
     1
     2))
  
  (test/neg-blame
   '->d-values10
   '((contract (->d ([y (<=/c x)] [x number?]) () (values [z boolean?] [w (<=/c x)]))
               (lambda (y x) (values #f (+ x 1))) 'pos 'neg)
     1 0))
  
  (test/spec-passed
   '->d-values11
   '((contract (->d () () #:rest rest any/c (values [z boolean?] [w number?])) (lambda x (values #f 1)) 'pos 'neg)))
  
  (test/spec-passed
   '->d-values12
   '((contract (->d ([x number?]) () #:rest rest any/c (values [z boolean?] [w number?]))
               (lambda (x . y) (values #f (+ x 1)))
               'pos 
               'neg)
     1))

  (test/pos-blame
   '->d-values13
   '((contract (->d () () #:rest rest any/c (values [z boolean?] [w number?])) 1 'pos 'neg)))
  
  (test/pos-blame
   '->d-values14
   '((contract (->d () () #:rest rest any/c (values [z boolean?] [w number?])) (lambda (x) x) 'pos 'neg)))
  
  (test/neg-blame
   '->d-values15
   '((contract (->d ([x number?]) () #:rest rest any/c  (values [z boolean?] [w (<=/c x)]))
               (lambda (x . y) (+ x 1)) 'pos 'neg)
     #f))
  
  (test/pos-blame
   '->d-values16
   '((contract (->d ([x number?]) () #:rest rest any/c (values [z boolean?] [w (<=/c x)]))
               (lambda (x . y) (values #f (+ x 1))) 'pos 'neg) 
     1))
  
  (test/spec-passed
   '->d-values17
   '((contract (->d ([x number?] [y (<=/c x)]) () #:rest rest any/c (values [z boolean?] [w (<=/c x)]))
               (lambda (x y . z) (values #f (- x 1))) 'pos 'neg) 
     1 0))
  
  (test/neg-blame
   '->d-values18
   '((contract (->d ([x number?] [y (<=/c x)]) () #:rest rest any/c (values [z boolean?] [w (<=/c x)]))
               (lambda (x y . z) (values #f (+ x 1))) 'pos 'neg) 
     1 2))
  
  (test/spec-passed
   '->d-values19
   '((contract (->d ([y (<=/c x)] [x number?]) () #:rest rest any/c  (values [z boolean?] [w (<=/c x)]))
               (lambda (y x . z) (values #f (- x 1))) 'pos 'neg)
     1 2))
  
  (test/neg-blame
   '->d-values20
   '((contract (->d ([y (<=/c x)] [x number?]) () #:rest rest any/c  (values [z boolean?] [w (<=/c x)]))
               (lambda (y x . z) (values #f (+ x 1))) 'pos 'neg) 
     1 0))

  (test/spec-passed
   '->d-values21
   '((contract (->d () () #:rest rst (listof number?) (values [z boolean?] [w any/c])) (lambda w (values #f 1)) 'pos 'neg) 1))
  
  (test/neg-blame
   '->d-values22
   '((contract (->d () () #:rest rst (listof number?) (values [z boolean?] [w any/c])) (lambda w (values #f 1)) 'pos 'neg) #f))

  (test/spec-passed
   '->d-values23
   '((contract (->d () () (values [x number?] [y (>=/c x)])) (lambda () (values 1 2)) 'pos 'neg)))
  
  (test/pos-blame
   '->d-values24
   '((contract (->d () () (values [x number?] [y (>=/c x)])) (lambda () (values 2 1)) 'pos 'neg)))

  (test/spec-passed
   '->d-values25
   '((contract (->d ([x number?]) () (values [z number?] [y (>=/c x)])) (lambda (x) (values 1 2)) 'pos 'neg) 1))
  
  (test/pos-blame
   '->d-values26
   '((contract (->d ([x number?]) () (values [z number?] [y (>=/c x)])) (lambda (x) (values 2 1)) 'pos 'neg) 4))

  (test/spec-passed/result
   '->d23
   '((contract (->d ((i number?) (j (and/c number? (>=/c i)))) () [r number?])
               (λ (i j) 1)
               'pos
               'neg)
     1
     2)
   1)

  (test/spec-passed/result
   '->d24
   '((contract (->d ((i number?) (j (and/c number? (>=/c i)))) () any)
               (λ (i j) 1)
               'pos
               'neg)
     1
     2)
   1)

  (test/spec-passed/result
   '->d25
   '(call-with-values
    (λ ()
      ((contract (->d ((i number?) (j (and/c number? (>=/c i)))) () (values [x number?] [y number?]))
                 (λ (i j) (values 1 2))
                 'pos
                 'neg)
       1
       2))
    list)
   '(1 2))

  (test/spec-passed/result
   '->d26
   '((contract (->d ((i number?) (j (and/c number? (>=/c i)))) () #:rest rest-args any/c [r number?])
               (λ (i j . z) 1)
               'pos
               'neg)
     1
     2)
   1)

  (test/spec-passed/result
   '->d27
   '((contract (->d ((i number?) (j (and/c number? (>=/c i)))) () #:rest rest-args any/c any)
               (λ (i j . z) 1)
               'pos
               'neg)
     1
     2)
   1)

  (test/spec-passed/result
   '->d28
   '(call-with-values
     (λ ()
       ((contract (->d ((i number?) (j (and/c number? (>=/c i)))) () #:rest rest-args any/c (values [x number?] [y number?]))
                  (λ (i j . z) (values 1 2))
                  'pos
                  'neg)
        1
        2))
     list)
   '(1 2))
  
  (test/neg-blame
   '->d30
   '((contract (->d ([x number?]) () #:rest rst number? any)
               (λ (x . rst) (values 4 5))
               'pos
               'neg)
     #f))
  
  (test/pos-blame
   '->d-arity1
   '(contract (->d ([x number?]) () any) (λ () 1) 'pos 'neg))
  
  (test/pos-blame
   '->d-arity2
   '(contract (->d ([x number?]) () any) (λ (x #:y y) 1) 'pos 'neg))
  
  (test/spec-passed
   '->d-arity3
   '(contract (->d ([x number?] #:y [y integer?]) () any) (λ (x #:y y) 1) 'pos 'neg))
  
  (test/pos-blame
   '->d-arity4
   '(contract (->d () ([x integer?]) any) (λ (x) 1) 'pos 'neg))
  
  (test/pos-blame
   '->d-arity5
   '(contract (->d () ([x integer?]) any) (λ () 1) 'pos 'neg))
  
  (test/spec-passed
   '->d-arity6
   '(contract (->d () ([x integer?]) any) (λ ([x 1]) 1) 'pos 'neg))
  
  (test/pos-blame
   '->d-arity7
   '(contract (->d () (#:x [x integer?]) any) (λ ([x 1]) 1) 'pos 'neg))
  
  (test/pos-blame
   '->d-arity8
   '(contract (->d () (#:x [x integer?]) any) (λ () 1) 'pos 'neg))
  
  (test/pos-blame
   '->d-arity8
   '(contract (->d () (#:x [x integer?]) any) (λ (#:x x) 1) 'pos 'neg))
  
  (test/spec-passed
   '->d-arity10
   '(contract (->d () (#:x [x integer?]) any) (λ (#:x [x 1]) 1) 'pos 'neg))
    
  (test/pos-blame
   '->d-pp1
   '((contract (->d ([x number?]) () #:pre-cond (= x 1) [result number?] #:post-cond (= x 2))
               (λ (x) x)
               'pos
               'neg)
     1))
  
  (test/neg-blame
   '->d-pp2
   '((contract (->d ([x number?]) () #:pre-cond (= x 1) [result number?] #:post-cond (= x 2))
               (λ (x) x)
               'pos
               'neg)
     2))
  
  (test/pos-blame
   '->d-pp3
   '((contract (->d ([x number?]) () #:pre-cond (= x 1) [result number?] #:post-cond (= result 2))
               (λ (x) x)
               'pos
               'neg)
     1))
  
  (test/spec-passed
   '->d-pp3.5
   '((contract (->d ([x number?]) () #:pre-cond (= x 1) [result number?] #:post-cond (= result 2))
               (λ (x) 2)
               'pos
               'neg)
     1))
  
  (test/neg-blame
   '->d-pp4
   '((contract (->d ([x number?]) () #:pre-cond (= x 1) any)
               (λ (x) x)
               'pos
               'neg)
     2))
  
  (test/neg-blame
   '->d-pp5
   '((contract (->d ([x number?]) () #:pre-cond (= x 1) (values [z number?] [y number?]) #:post-cond (= x y z 3))
               (λ (x) (values 4 5))
               'pos
               'neg)
     2))
  
  (test/pos-blame
   '->d-pp6
   '((contract (->d ([x number?]) () #:pre-cond (= x 1) (values [z number?] [y number?]) #:post-cond (= z y 3))
               (λ (x) (values 4 5))
               'pos
               'neg)
     1))

  (test/pos-blame
   '->d-pp-r1
   '((contract (->d ([x number?]) () #:rest rst any/c #:pre-cond (= x 1) [result number?] #:post-cond (= x 2))
               (λ (x . rst) x)
               'pos
               'neg)
     1))
  
  (test/neg-blame
   '->d-pp-r2
   '((contract (->d ([x number?]) () #:rest rst any/c #:pre-cond (= x 1)  [result number?] #:post-cond (= x 2))
               (λ (x . rst) x)
               'pos
               'neg)
     2))
  
  (test/pos-blame
   '->d-pp-r3
   '((contract (->d ([x number?]) () #:rest rst any/c #:pre-cond (= x 1) [result number?] #:post-cond (= result 2))
               (λ (x . rst) x)
               'pos
               'neg)
     1))
  
  (test/spec-passed
   '->d-pp-r3.5
   '((contract (->d ([x number?]) () #:rest rst any/c #:pre-cond (= x 1) [result number?] #:post-cond (= result 2))
               (λ (x . rst) 2)
               'pos
               'neg)
     1))
  
  (test/neg-blame
   '->d-pp-r4
   '((contract (->d ([x number?]) () #:rest rst any/c #:pre-cond (= x 1) any)
               (λ (x . rst) x)
               'pos
               'neg)
     2))
  
  (test/neg-blame
   '->d-pp-r5
   '((contract (->d ([x number?]) () #:rest rst any/c #:pre-cond (= x 1) (values [z number?] [y number?]) #:post-cond (= x y z 3))
               (λ (x . rst) (values 4 5))
               'pos
               'neg)
     2))
  
  (test/pos-blame
   '->d-pp-r6
   '((contract (->d ([x number?]) () #:rest rst any/c #:pre-cond (= x 1) (values [z number?] [y number?]) #:post-cond (= z x y 3))
               (λ (x . rst) (values 4 5))
               'pos
               'neg)
     1))

  (test/neg-blame
   '->d-protect-shared-state
   '(let ([x 1])
      ((contract (let ([save #f]) 
                   (-> (->d () () #:pre-cond (set! save x) [range any/c] #:post-cond (= save x))
                       any))
                 (λ (t) (t))
                 'pos
                 'neg)
       (lambda () (set! x 2)))))
  
  
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;;
  ;;  make sure the variables are all bound properly
  ;;
  
  (test/spec-passed
   '->d-binding1
   '((contract (->d ([x number?]) () #:rest rest any/c [range any/c] #:post-cond (equal? rest '(2 3 4)))
               (λ (x . y) y)
               'pos
               'neg)
     1 2 3 4))
  
  (test/spec-passed
   '->d-binding2
   '((contract (->d ([x number?]) () #:rest rest any/c [range any/c] #:post-cond (equal? x 1))
               (λ (x . y) y)
               'pos
               'neg)
     1 2 3 4))
  
  (test/spec-passed
   '->d-binding3
   '(let ([p 'p]
          [q 'q]
          [r 'r])
      ((contract (->d ([x number?] [y number?] #:z [z number?] #:w [w number?]) 
                      ([a number?] [b number?] #:c [c number?] #:d [d number?])
                      #:rest rest any/c 
                      #:pre-cond (equal? (list x y z w a b c d rest p q r)
                                         (list 1 2 3 4 5 6 7 8 '(z) 'p 'q 'r))
                      (values [p number?] [q number?] [r number?]))
                 (λ (x y #:z z #:w w [a 101] [b 102] #:c [c 103] #:d [d 104] . rest)
                   (values 11 12 13))
                 'pos
                 'neg)
       1 2 #:z 3 #:w 4 5 6 #:c 7 #:d 8 'z)))
  
  (test/spec-passed
   '->d-binding4
   '((contract (->d ([x number?] [y number?] #:z [z number?] #:w [w number?]) 
                    ([a number?] [b number?] #:c [c number?] #:d [d number?])
                    #:rest rest any/c 
                    (values [p number?] [q number?] [r number?])
                    #:post-cond (equal? (list x y z w a b c d rest p q r)
                                        (list 1 2 3 4 5 6 7 8 '(z) 11 12 13)))
               (λ (x y #:z z #:w w [a 101] [b 102] #:c [c 103] #:d [d 104] . rest)
                 (values 11 12 13))
               'pos
               'neg)
     1 2 #:z 3 #:w 4 5 6 #:c 7 #:d 8 'z))
  
  (test/spec-passed
   '->d-binding5
   '(let ([p 'p]
          [q 'q]
          [r 'r])
      ((contract (->d ([x number?] [y number?] #:z [z number?] #:w [w number?]) 
                      ([a number?] [b number?] #:c [c number?] #:d [d number?])
                      #:rest rest any/c 
                      #:pre-cond (equal? (list x y z w a b c d rest p q r)
                                         (list 1 2 3 4 
                                               the-unsupplied-arg the-unsupplied-arg the-unsupplied-arg the-unsupplied-arg
                                               '() 'p 'q 'r))
                      (values [p number?] [q number?] [r number?]))
                 (λ (x y #:z z #:w w [a 101] [b 102] #:c [c 103] #:d [d 104] . rest)
                   (values 11 12 13))
                 'pos
                 'neg)
       1 2 #:z 3 #:w 4)))
  
  (test/spec-passed
   '->d-binding6
   '((contract (->d ([x number?] [y number?] #:z [z number?] #:w [w number?]) 
                    ([a number?] [b number?] #:c [c number?] #:d [d number?])
                    #:rest rest any/c 
                    (values [p number?] [q number?] [r number?])
                    #:post-cond (equal? (list x y z w a b c d rest p q r)
                                        (list 1 2 3 4
                                              the-unsupplied-arg the-unsupplied-arg the-unsupplied-arg the-unsupplied-arg
                                              '() 11 12 13)))
               (λ (x y #:z z #:w w [a 101] [b 102] #:c [c 103] #:d [d 104] . rest)
                 (values 11 12 13))
               'pos
               'neg)
     1 2 #:z 3 #:w 4))
  
  ;; test that the rest parameter is right when there aren't enough arguments to even make it to the rest parameter
  (test/spec-passed
   '->d-binding7
   '((contract (->d () 
                    ([a number?])
                    #:rest rest any/c 
                    [_ any/c]
                    #:post-cond (equal? (list a rest) (list the-unsupplied-arg '())))
               (λ ([a 1] . rest) 1)
               'pos
               'neg)))
  
  (test/pos-blame
   '->d-underscore1
   '((contract (->d ([b (box/c integer?)])
                    ()
                    [_ (let ([old (unbox b)])
                         (and/c
                          void?
                          (λ (new)
                            (= old (unbox b)))))])
               (λ (b)
                 (set-box! b (+ (unbox b) 1)))
               'pos
               'neg)
     (box 1)))
  
  (test/spec-passed/result
   '->d-underscore2
   '(let ([x '()])
      ((contract (->d () () [_ (begin (set! x (cons 'ctc x)) any/c)])
                 (λ () (set! x (cons 'body x)))
                 'pos
                 'neg))
      x)
   '(body ctc))
  
  (test/spec-passed/result
   '->d-underscore3
   '(let ([x '()])
      ((contract (->d () () [res (begin (set! x (cons 'ctc x)) any/c)])
                 (λ () (set! x (cons 'body x)))
                 'pos
                 'neg))
      x)
   '(ctc body))
  
  (test/spec-passed/result
   '->d-underscore4
   '((contract (->d ([str any/c]) () #:rest rest (listof any/c) [_ any/c])
               (λ (x . y) (cons x y))
               'pos 'neg)
     1 2 3)
   '(1 2 3))
  
  (test/spec-passed/result
   '->d-underscore5
   '((contract (->d ([str any/c]) () #:rest rest (listof any/c) [_ any/c])
               (λ (x . y) (cons x y))
               'pos 'neg)
     1 2 3 4 5)
   '(1 2 3 4 5))
  
;                                               
;                                               
;                                               
;                                               
;                                        ;      
;    ;;;;; ;;;;;;;   ;;;;;   ;;;         ;;;    
;   ;;;;;; ;;;;;;;; ;;;;;;  ;;;;;         ;;;;  
;  ;;;;;;;     ;;;; ;;;;   ;;;; ;;          ;;; 
;  ;;;;     ;;;;;;;  ;;;;  ;;;;;;; ;;;;;    ;;; 
;  ;;;;;;; ;;  ;;;;   ;;;; ;;;;;   ;;;;;  ;;;;  
;   ;;;;;; ;;;;;;;; ;;;;;;  ;;;;;;       ;;;    
;    ;;;;;  ;; ;;;; ;;;;;    ;;;;        ;      
;                                               
;                                               
;                                               


  (test/spec-passed
   'contract-case->0a
   '(contract (case->)
              (lambda (x) x)
              'pos
              'neg))
  
  (test/spec-passed
   'contract-case->0b
   '(contract (case->)
              (lambda () 1)
              'pos
              'neg))
  
  (test/pos-blame
   'contract-case->0c
   '(contract (case->)
              1
              'pos
              'neg))
  
  (test/spec-passed
   'contract-case->0d
   '(contract (case->)
              (case-lambda)
              'pos
              'neg))
  
  
  (test/pos-blame
   'contract-case->1
   '(contract (case-> (integer? integer? . -> . integer?) (integer? . -> . integer?))
              (lambda (x) x)
              'pos
              'neg))
  
  (test/pos-blame
   'contract-case->2
   '((contract (case-> (integer? integer? . -> . integer?) (integer? . -> . integer?))
               (case-lambda 
                 [(x y) 'case1]
                 [(x) 'case2])
               'pos
               'neg)
     1 2))
  
  (test/pos-blame
   'contract-case->3
   '((contract (case-> (integer? integer? . -> . integer?) (integer? . -> . integer?))
               (case-lambda 
                 [(x y) 'case1]
                 [(x) 'case2])
               'pos
               'neg)
     1))
  
  (test/neg-blame
   'contract-case->4
   '((contract (case-> (integer? integer? . -> . integer?) (integer? . -> . integer?))
               (case-lambda 
                 [(x y) 'case1]
                 [(x) 'case2])
               'pos
               'neg)
     'a 2))
  
  (test/neg-blame
   'contract-case->5
   '((contract (case-> (integer? integer? . -> . integer?) (integer? . -> . integer?))
               (case-lambda 
                 [(x y) 'case1]
                 [(x) 'case2])
               'pos
               'neg)
     2 'a))
  
  (test/neg-blame
   'contract-case->6
   '((contract (case-> (integer? integer? . -> . integer?) (integer? . -> . integer?))
               (case-lambda 
                 [(x y) 'case1]
                 [(x) 'case2])
               'pos
               'neg)
     #t))

  (test/pos-blame
   'contract-case->7
   '((contract (case-> (integer? integer? . -> . integer?) (-> integer? #:rest any/c boolean?))
               (lambda x #\a)
               'pos
               'neg)
     1 2))

  
  (test/pos-blame
   'contract-case->8
   '((contract (case-> (integer? integer? . -> . integer?) (-> integer? #:rest any/c boolean?))
               (lambda x #t)
               'pos
               'neg)
     1 2))
 
  (test/spec-passed
   'contract-case->8
   '((contract (case-> (integer? integer? . -> . integer?) (-> integer? #:rest any/c boolean?))
               (lambda x 1)
               'pos
               'neg)
     1 2))
  
  (test/spec-passed/result
   'contract-case->9
   '((contract (case-> (-> integer? any))
               (lambda (x) 1)
               'pos
               'neg)
     1)
   1)
  
  (test/neg-blame
   'contract-case->10
   '((contract (case-> (-> integer? any))
               (lambda (x) 1)
               'pos
               'neg)
     #f))
  
  (test/pos-blame
   'contract-case->11
   '(contract (case-> (-> integer? any) (->  integer? integer? any))
              (lambda (x) 1)
              'pos
              'neg))
  
  (test/neg-blame
   'contract-case->12
   '((contract (case-> (-> integer? any) (-> integer? integer? any))
               (case-lambda [(x) 1] [(x y) 1])
               'pos
               'neg)
     #f))
  
  (test/spec-passed/result
   'contract-case->13
   '((contract (case-> (-> integer? any) (-> integer? integer? any))
               (case-lambda [(x) 1] [(x y) 1])
               'pos
               'neg)
     1)
   1)
  
  (test/spec-passed/result
   'contract-case->14
   '(let ([f 
           (contract (case-> (-> char?) (-> integer? boolean?) (-> symbol? input-port? string?))
                     (case-lambda
                       [() #\a]
                       [(x) (= x 0)]
                       [(sym port) 
                        (string-append
                         (symbol->string sym)
                         (read port))])
                     'pos
                     'neg)])
      (list (f)
            (f 1)
            (f 'x (open-input-string (format "~s" "string")))))
   (list #\a #f "xstring"))
    
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;;                                                        ;;
  ;;   case-> arity checking tests                          ;;
  ;;                                                        ;;
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  
  (test/well-formed '(case-> (-> integer? integer?)))
  (test/well-formed '(case-> (-> integer? integer?) (-> integer? integer? integer?)))
  (test/well-formed '(case-> (-> integer? integer?) (-> integer? integer? any)))
  (test/well-formed '(case-> (-> integer? any) (-> integer? integer? any)))
    
;                                                                                                                 
;                                                                                                                 
;                                                                                                                 
;                                                            ;                     ;;                        ;;;; 
;                                                           ;;                     ;;                        ;;;; 
;  ;;;; ;;;; ;;;; ;;;    ;;;;;   ;;;;   ;;;; ;;;   ;;;;;  ;;;;; ;;; ;;; ;;;;;;;       ;;;; ;;;    ;;;     ;;;;;;; 
;  ;;;; ;;;; ;;;;;;;;;  ;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;; ;;;;;; ;;;;;;; ;;;;;;;; ;;;; ;;;;;;;;;  ;;;;;   ;;;;;;;; 
;  ;;;; ;;;; ;;;; ;;;; ;;;;;;; ;;;;;;;; ;;;; ;;;; ;;;;    ;;;;  ;;;; ;;     ;;;; ;;;; ;;;; ;;;; ;;;; ;; ;;;;;;;;; 
;  ;;;; ;;;; ;;;; ;;;; ;;;;    ;;;; ;;; ;;;; ;;;;  ;;;;   ;;;;  ;;;;     ;;;;;;; ;;;; ;;;; ;;;; ;;;;;;; ;;;; ;;;; 
;  ;;;; ;;;; ;;;; ;;;; ;;;;;;; ;;;;;;;; ;;;; ;;;;   ;;;;  ;;;;; ;;;;    ;;  ;;;; ;;;; ;;;; ;;;; ;;;;;   ;;;;;;;;; 
;  ;;;;;;;;; ;;;; ;;;;  ;;;;;;  ;;;;;;  ;;;; ;;;; ;;;;;;  ;;;;; ;;;;    ;;;;;;;; ;;;; ;;;; ;;;;  ;;;;;;  ;;;;;;;; 
;   ;;; ;;;; ;;;; ;;;;   ;;;;;   ;;;;   ;;;; ;;;; ;;;;;    ;;;; ;;;;     ;; ;;;; ;;;; ;;;; ;;;;   ;;;;    ;;;;;;; 
;                                                                                                                 
;                                                                                                                 
;                                                                                                                 
;                                                                        
;                                                                        
;                                                                        
;       ;;;;                                   ;;                        
;       ;;;;                                   ;;                 ;      
;    ;;;;;;;   ;;;;   ;;;;;;; ;;;;  ;;;;;;;       ;;;; ;;;        ;;;    
;   ;;;;;;;;  ;;;;;;  ;;;;;;;;;;;;; ;;;;;;;; ;;;; ;;;;;;;;;        ;;;;  
;  ;;;;;;;;; ;;;;;;;; ;;;; ;;; ;;;;     ;;;; ;;;; ;;;; ;;;;          ;;; 
;  ;;;; ;;;; ;;;; ;;; ;;;; ;;; ;;;;  ;;;;;;; ;;;; ;;;; ;;;; ;;;;;    ;;; 
;  ;;;;;;;;; ;;;;;;;; ;;;; ;;; ;;;; ;;  ;;;; ;;;; ;;;; ;;;; ;;;;;  ;;;;  
;   ;;;;;;;;  ;;;;;;  ;;;; ;;; ;;;; ;;;;;;;; ;;;; ;;;; ;;;;       ;;;    
;    ;;;;;;;   ;;;;   ;;;; ;;; ;;;;  ;; ;;;; ;;;; ;;;; ;;;;       ;      
;                                                                        
;                                                                        
;                                                                        

  
  (test/spec-passed
   'unconstrained-domain->1
   '(contract (unconstrained-domain-> number?) (λ (x) x) 'pos 'neg))
  (test/pos-blame
   'unconstrained-domain->2
   '(contract (unconstrained-domain-> number?) 1 'pos 'neg))
  (test/spec-passed
   'unconstrained-domain->3
   '((contract (unconstrained-domain-> number?) (λ (x) x) 'pos 'neg) 1))
  (test/pos-blame
   'unconstrained-domain->4
   '((contract (unconstrained-domain-> number?) (λ (x) x) 'pos 'neg) #f))
  
  (test/spec-passed/result
   'unconstrained-domain->5
   '((contract (->d ([size natural-number/c]
                     [proc (and/c (unconstrained-domain-> number?)
                                  (λ (p) (procedure-arity-includes? p size)))])
                    ()
                    [range number?])
               (λ (i f) (apply f (build-list i add1)))
               'pos
               'neg)
     10 +)
   55)
  
  (test/spec-passed/result
   'unconstrained-domain->6
   ((contract (unconstrained-domain-> any/c)
              (λ (#:key k) k)
              'pos
              'neg)
    #:key 1)
   1)
  
  (test/pos-blame
   'unconstrained-domain->7
   '((contract (unconstrained-domain-> number?) (λ (#:x x) x) 'pos 'neg) #:x #f))
  
;                              
;                              
;                              
;                    ;;        
;                    ;;        
;    ;;;;   ;;; ;;;  ;;  ;;;;; 
;   ;;;;;;  ;;;;;;;  ;; ;;;;;; 
;  ;;;;;;;; ;;;; ;;  ;;;;;;;;; 
;  ;;;; ;;; ;;;;    ;; ;;;;    
;  ;;;;;;;; ;;;;    ;; ;;;;;;; 
;   ;;;;;;  ;;;;    ;;  ;;;;;; 
;    ;;;;   ;;;;    ;;   ;;;;; 
;                   ;;         
;                              
;                              

  
  (test/pos-blame
   'or/c1
   '(contract (or/c false/c) #t 'pos 'neg))

  (test/spec-passed
   'or/c2
   '(contract (or/c false/c) #f 'pos 'neg))

  (test/spec-passed
   'or/c3
   '((contract (or/c (-> integer? integer?)) (lambda (x) x) 'pos 'neg) 1))
  
  (test/neg-blame
   'or/c4
   '((contract (or/c (-> integer? integer?)) (lambda (x) x) 'pos 'neg) #f))
  
  (test/pos-blame
   'or/c5
   '((contract (or/c (-> integer? integer?)) (lambda (x) #f) 'pos 'neg) 1))
  
  (test/spec-passed
   'or/c6
   '(contract (or/c false/c (-> integer? integer?)) #f 'pos 'neg))
  
  (test/spec-passed
   'or/c7
   '((contract (or/c false/c (-> integer? integer?)) (lambda (x) x) 'pos 'neg) 1))
  
  (test/spec-passed/result
   'or/c8
   '((contract ((or/c false/c (-> string?))  . -> . any)
               (λ (y) y)
               'pos
               'neg)
     #f)
   #f)

  (test/spec-passed/result
   'or/c9
   '((contract (or/c (-> string?) (-> integer? integer?))
               (λ () "x")
               'pos
               'neg))
   "x")
  
  (test/spec-passed/result
   'or/c10
   '((contract (or/c (-> string?) (-> integer? integer?))
               (λ (x) x)
               'pos
               'neg) 
     1)
   1)
  
  (test/pos-blame
   'or/c11
   '(contract (or/c (-> string?) (-> integer? integer?))
              1
              'pos
              'neg))
  
  (test/pos-blame
   'or/c12
   '((contract (or/c (-> string?) (-> integer? integer?))
               1
               'pos
               'neg)
     'x))
  
  (test/pos-blame
   'or/c13
   '(contract (or/c not) #t 'pos 'neg))
  
  (test/spec-passed
   'or/c14
   '(contract (or/c not) #f 'pos 'neg))
  
  (test/spec-passed/result
   'or/c-not-error-early 
   '(begin (or/c (-> integer? integer?) (-> boolean? boolean?))
           1)
   1)
  
  (contract-error-test
   #'(contract (or/c (-> integer? integer?) (-> boolean? boolean?))
               (λ (x) x)
               'pos
               'neg)
   exn:fail?)
  
  (test/spec-passed/result
   'or/c-ordering
   '(let ([x '()])
      (contract (or/c (lambda (y) (set! x (cons 2 x)) #f) (lambda (y) (set! x (cons 1 x)) #t))
                'anything
                'pos
                'neg)
      x)
   '(1 2))
  
  (test/spec-passed/result
   'or/c-ordering2
   '(let ([x '()])
      (contract (or/c (lambda (y) (set! x (cons 2 x)) #t) (lambda (y) (set! x (cons 1 x)) #t))
                'anything
                'pos
                'neg)
      x)
   '(2))

  (test/spec-passed
   'or/c-hmm
   (let ([funny/c (or/c (and/c procedure? (-> any)) (listof (-> number?)))])
     (contract (-> funny/c any) void 'pos 'neg)))

  
  
;                                          
;                                          
;                                          
;                          ;;;;  ;;        
;                          ;;;;  ;;        
;  ;;;;;;;  ;;;; ;;;    ;;;;;;;  ;;  ;;;;; 
;  ;;;;;;;; ;;;;;;;;;  ;;;;;;;;  ;; ;;;;;; 
;      ;;;; ;;;; ;;;; ;;;;;;;;;  ;;;;;;;;; 
;   ;;;;;;; ;;;; ;;;; ;;;; ;;;; ;; ;;;;    
;  ;;  ;;;; ;;;; ;;;; ;;;;;;;;; ;; ;;;;;;; 
;  ;;;;;;;; ;;;; ;;;;  ;;;;;;;; ;;  ;;;;;; 
;   ;; ;;;; ;;;; ;;;;   ;;;;;;; ;;   ;;;;; 
;                               ;;         
;                                          
;                                          

  (test/spec-passed
   'and/c1
   '((contract (and/c (-> (<=/c 100) (<=/c 100))
                      (-> (>=/c -100) (>=/c -100)))
               (λ (x) x)
               'pos
               'neg)
     1))
  
  (test/neg-blame
   'and/c2
   '((contract (and/c (-> (<=/c 100) (<=/c 100))
                      (-> (>=/c -100) (>=/c -100)))
               (λ (x) x)
               'pos
               'neg)
     200))
  
  (test/pos-blame
   'and/c3
   '((contract (and/c (-> (<=/c 100) (<=/c 100))
                      (-> (>=/c -100) (>=/c -100)))
               (λ (x) 200)
               'pos
               'neg)
     1))
  
  
  
  
  (test/spec-passed/result
   'and/c-ordering
   '(let ([x '()])
      (contract (and/c (lambda (y) (set! x (cons 2 x)) #t) (lambda (y) (set! x (cons 1 x)) #t))
                'anything
                'pos
                'neg)
      x)
   '(1 2))
  
  (test/spec-passed/result
   'ho-and/c-ordering
   '(let ([x '()])
      ((contract (and/c (-> (lambda (y) (set! x (cons 1 x)) #t)
                            (lambda (y) (set! x (cons 2 x)) #t))
                        (-> (lambda (y) (set! x (cons 3 x)) #t)
                            (lambda (y) (set! x (cons 4 x)) #t)))
                 (λ (x) x)
                 'pos
                 'neg)
       1)
      x)
   (reverse '(1 3 4 2)))

  
;                                                                                              
;                                                                                              
;                                                                                              
;                                                                ;                   ;;        
;                                                               ;;                   ;;        
;  ;;;;;;;   ;;;;;;;  ;;; ;;; ;;;;;;;  ;;;;;;; ;;;;    ;;;    ;;;;;   ;;;   ;;; ;;;  ;;  ;;;;; 
;  ;;;;;;;;  ;;;;;;;; ;;;;;;; ;;;;;;;; ;;;;;;;;;;;;;  ;;;;;  ;;;;;;  ;;;;;  ;;;;;;;  ;; ;;;;;; 
;  ;;;;;;;;;     ;;;; ;;;; ;;     ;;;; ;;;; ;;; ;;;; ;;;; ;;  ;;;;  ;;;; ;; ;;;; ;;  ;;;;;;;;; 
;  ;;;; ;;;;  ;;;;;;; ;;;;     ;;;;;;; ;;;; ;;; ;;;; ;;;;;;;  ;;;;  ;;;;;;; ;;;;    ;; ;;;;    
;  ;;;;;;;;; ;;  ;;;; ;;;;    ;;  ;;;; ;;;; ;;; ;;;; ;;;;;    ;;;;; ;;;;;   ;;;;    ;; ;;;;;;; 
;  ;;;;;;;;  ;;;;;;;; ;;;;    ;;;;;;;; ;;;; ;;; ;;;;  ;;;;;;  ;;;;;  ;;;;;; ;;;;    ;;  ;;;;;; 
;  ;;;;;;;    ;; ;;;; ;;;;     ;; ;;;; ;;;; ;;; ;;;;   ;;;;    ;;;;   ;;;;  ;;;;    ;;   ;;;;; 
;  ;;;;                                                                             ;;         
;  ;;;;                                                                                        
;                                                                                              

  
  (test/neg-blame
   'parameter/c1
   '((contract (parameter/c integer?)
               (make-parameter 1)
               'pos 'neg)
     #f))
  
  (test/pos-blame
   'parameter/c1
   '((contract (parameter/c integer?)
               (make-parameter 'not-an-int)
               'pos 'neg)))

  
;                                            
;                                            
;                                            
;                                            
;                                            
;                                            
;   ;;                     ;;       ;        
;   ;;                     ;;       ;        
;   ;;;;;;   ;;;;   ;;;;;  ;;;;;;  ;;  ;;;;  
;   ;;;;;;  ;;  ;;  ;; ;;  ;;;;;;  ;  ;;;;;; 
;   ;;  ;;    ;;;;  ;;;;;  ;;  ;;  ; ;;;     
;   ;;  ;;  ;;; ;;    ;;;; ;;  ;;  ; ;;;     
;   ;;  ;; ;;;  ;;  ;; ;;; ;;  ;; ;;  ;;;;;; 
;   ;;  ;;  ;;;;;;  ;;;;;  ;;  ;; ;    ;;;;  
;                                            
;                                            
;                                            

  (test/spec-passed
   'hash/c1
   '(contract (hash/c symbol? boolean?)
              (make-hash)
              'pos
              'neg))
  
  (test/spec-passed
   'hash/c2
   '(contract (hash/c symbol? boolean?)
              (let ([h (make-hash)])
                (hash-set! h 'x #t)
                h)
              'pos
              'neg))
  
  (test/pos-blame
   'hash/c3
   '(contract (hash/c symbol? boolean?)
              (let ([h (make-hash)])
                (hash-set! h 'x 'x)
                h)
              'pos
              'neg))
  
  (test/pos-blame
   'hash/c4
   '(contract (hash/c symbol? boolean?)
              (let ([h (make-hash)])
                (hash-set! h #t #f)
                h)
              'pos
              'neg))
  
  (test/pos-blame
   'hash/c5
   '(contract (hash/c symbol? boolean? #:immutable #t)
              (let ([h (make-hash)])
                (hash-set! h 'x #f)
                h)
              'pos
              'neg))
  
  (test/spec-passed
   'hash/c6
   '(contract (hash/c symbol? boolean? #:immutable #t)
              (make-immutable-hash '((x . #f)))
              'pos
              'neg))
  
  (test/spec-passed
   'hash/c7
   '(contract (hash/c symbol? boolean? #:immutable #f)
              (let ([h (make-hash)])
                (hash-set! h 'x #f)
                h)
              'pos
              'neg))
  
  (test/pos-blame
   'hash/c8
   '(contract (hash/c symbol? boolean? #:immutable #f)
              (make-immutable-hash '((x . #f)))
              'pos
              'neg))
  
  (test/spec-passed
   'hash/c9
   '(contract (hash/c symbol? boolean? #:immutable 'dont-care)
              (make-immutable-hash '((x . #f)))
              'pos
              'neg))
  
  (test/spec-passed
   'hash/c10
   '(contract (hash/c symbol? boolean? #:immutable 'dont-care)
              (let ([h (make-hash)])
                (hash-set! h 'x #f)
                h)
              'pos
              'neg))
  
  (test/spec-passed/result
   'hash/c11
   '(hash-ref (contract (hash/c symbol? number? #:immutable #t)
                        (make-immutable-hash '((x . 1)))
                        'pos
                        'neg)
              'x)
   1)
  
  (test/spec-passed/result
   'hash/c12
   '(hash-ref (contract (hash/c symbol? number?)
                        (let ([ht (make-hash)])
                          (hash-set! ht 'x 1)
                          ht)
                        'pos
                        'neg)
              'x)
   1)

  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;;
  ;;  make-proj-contract
  ;;
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

  (contract-eval
   '(define proj:add1->sub1
      (make-proj-contract
       'proj:add1->sub1
       (lambda (pos neg src name blame)
         (lambda (f)
           (unless (and (procedure? f) (procedure-arity-includes? f 1))
             (raise-contract-error f src pos name
                                   "expected a unary function, got: ~e"
                                   f))
           (lambda (x)
             (unless (and (integer? x) (exact? x))
               (raise-contract-error x src neg name
                                     "expected an integer, got: ~e"
                                     x))
             (let* ([y (f (add1 x))])
               (unless (and (integer? y) (exact? y))
                 (raise-contract-error y src pos name
                                       "expected an integer, got: ~e"
                                       y))
               (sub1 y)))))
       (lambda (f)
         (and (procedure? f) (procedure-arity-includes? f 1))))))

  (test/spec-passed/result
   'make-proj-contract-1
   '((contract proj:add1->sub1 sqrt 'pos 'neg) 15)
   3)

  (test/pos-blame
   'make-proj-contract-2
   '(contract proj:add1->sub1 'dummy 'pos 'neg))

  (test/pos-blame
   'make-proj-contract-3
   '((contract proj:add1->sub1 (lambda (x) 'dummy) 'pos 'neg) 2))

  (test/neg-blame
   'make-proj-contract-4
   '((contract proj:add1->sub1 sqrt 'pos 'neg) 'dummy))
  
;                                                                                           
;                                                                                           
;                                                                                           
;        ;          ;;;;                  ;                                                 
;       ;;         ;   ;                  ;                                                 
;        ;         ;                     ;                        ;                      ;  
;        ;         ;                     ;                        ;                      ;  
;     ;; ;   ;;;  ;;;; ;  ; ;;    ;;;    ;   ;;;     ;;    ; ;;  ;;;; ; ;;  ;;;    ;;;  ;;;;
;    ;  ;;  ;   ;  ;  ;; ;;;  ;  ;   ;  ;   ;   ;   ;  ;  ;;;  ;  ;  ;;;   ;   ;  ;   ;  ;  
;   ;    ;  ;;;;;  ;   ;  ;   ;  ;;;;;  ;   ;      ;    ;  ;   ;  ;   ;       ;;  ;      ;  
;   ;    ;  ;      ;   ;  ;   ;  ;      ;   ;      ;    ;  ;   ;  ;   ;     ;; ;  ;      ;  
;   ;    ;  ;      ;   ;  ;   ;  ;      ;   ;      ;    ;  ;   ;  ;   ;    ;   ;  ;      ;  
;    ;  ;;; ;   ;  ;   ;  ;   ;  ;   ; ;    ;   ;   ;  ;   ;   ;  ; ; ;    ;  ;;  ;   ;  ; ;
;     ;; ;   ;;;  ;;;;;;;;;; ;;;  ;;;  ;     ;;;     ;;   ;;; ;;; ;; ;;;    ;; ;;  ;;;   ;; 
;                                                                                           
;                                                                                           
;                                                                                           

  (test/spec-passed
   'define/contract1
   '(let ()
      (define/contract i integer? 1)
      i))
  
  (test/spec-failed
   'define/contract2
   '(let ()
      (define/contract i integer? #t)
      i)
   "(definition i)")
  
  (test/spec-failed
   'define/contract3
   '(let ()
      (define/contract i (-> integer? integer?) (lambda (x) #t))
      (i 1))
   "(definition i)")
  
  (test/spec-failed
   'define/contract4
   '(let ()
      (define/contract i (-> integer? integer?) (lambda (x) 1))
      (i #f))
   "top-level")
  
  (test/spec-failed
   'define/contract5
   '(let ()
      (define/contract (i x) (-> integer? integer?) 1)
      (i #f))
   "top-level")
  
  (test/spec-passed
   'define/contract6
   '(let ()
      (define/contract (i x) (-> integer? integer?)
        (cond
          [(not (integer? x)) 1]
          [else (i #f)]))
      (i 1)))
  
  (test/spec-passed
   'define/contract7
   '(let ()
      (define/contract (contracted-func label t)
                       (string?  string? . -> . string?)
                       t)
      (contracted-func
       "I'm a string constant with side effects"
       "ans")))

  (test/spec-passed
   'define/contract8
   '(let ()
      (eval '(module contract-test-suite-define1 scheme/base
               (require scheme/contract)
               (define/contract x string? "a")
               x))
      (eval '(require 'contract-test-suite-define1))))
  
  (test/spec-failed
   'define/contract9
   '(let ()
      (define/contract (a n)
        (-> number? number?)
        (define/contract (b m)
          (-> number? number?)
          (+ m 1))
        (b (zero? n)))
      (a 5))
   "(function a)")
  
  (test/spec-failed
   'define/contract10
   '(let ()
      (define/contract (a n)
        (-> number? number?)
        (define/contract (b m)
          (-> number? number?)
          #t)
        (b (add1 n)))
      (a 5))
   "(function b)")
  
  (test/spec-passed
   'define/contract11
   '(let ()
      (define/contract (f n)
        (-> number? number?)
        (+ n 1))
      (define/contract (g b m)
        (-> boolean? number? number?)
        (if b (f m) (f #t)))
      (g #t 3)))
  
  ;; For some of the following tests, it may not be clear
  ;; why the blame is what it is.  The contract(s) entered
  ;; into via with-contract are between the contracting
  ;; region and its context.  If the context allows the
  ;; value to flow into other regions without contracts
  ;; that protect it from misuses in those regions, it's
  ;; the context's fault.
  (test/spec-failed
   'define/contract12
   '(let ()
      (define/contract (f n)
        (-> number? number?)
        (+ n 1))
      (define/contract (g b m)
        (-> boolean? number? number?)
        (if b (f m) (f #t)))
      (g #f 3))
   "top-level")

  (test/spec-failed
   'define/contract13
   '(begin
      (eval '(module foo-dc13 scheme/base
	       (require scheme/contract)
	       (define/contract (foo-dc13 n)
		 (-> number? number?)
		 (+ n 1))
	       (foo-dc13 #t)))
      (eval '(require 'foo-dc13)))
   "'foo-dc13")
  
  (test/spec-failed
   'define/contract14
   '(begin
      (eval '(module foo-dc14 scheme/base
	       (require scheme/contract)
	       (provide foo-dc14)
	       (define/contract (foo-dc14 n)
		 (-> number? number?)
		 (+ n 1))))
      (eval '(module bar-dc14 scheme/base
	       (require 'foo-dc14)
	       (foo-dc14 #t)))
      (eval '(require 'bar-dc14)))
   "'foo-dc14")

  (test/spec-failed
   'define/contract15
   '(begin
      (eval '(module foo-dc15 scheme/base
	       (require scheme/contract)
	       (provide foo-dc15)
	       (define/contract (foo-dc15 n)
		 (-> number? number?)
		 (+ n 1))))
      (eval '(require 'foo-dc15))
      (eval '(foo-dc15 #t)))
   "'foo-dc15")
  
  ;; Let's see how units + define/contract interact
  
  (test/spec-failed
   'define/contract16
   '(begin
      (eval '(module foo-dc16 scheme/base
               (require scheme/contract)
               (require scheme/unit)
               (let ()
                 (define/contract (foo n)
                   (-> number? number?)
                   (define-signature U^
                     ((contracted [x (-> number? number?)])))
                   (define-unit U@
                     (import)
                     (export U^)
                     (define (x n) #t))
                   (define-values/invoke-unit U@
                     (import)
                     (export U^))
                   (x n))
                 (foo 3))))
      (eval '(require 'foo-dc16)))
   "(unit U@)")
  
  (test/spec-failed
   'define/contract16a
   '(begin
      (eval '(module foo-dc16a scheme/base
               (require scheme/contract)
               (require scheme/unit)
               (let ()
                 (define/contract (foo n)
                   (-> number? number?)
                   (define-signature U^
                     (x))
                   (define-unit/contract U@
                     (import)
                     (export (U^ [x (-> number? number?)]))
                     (define (x n) #t))
                   (define-values/invoke-unit U@
                     (import)
                     (export U^))
                   (x n))
                 (foo 3))))
      (eval '(require 'foo-dc16a)))
   "(unit U@)")
  
  (test/spec-failed
   'define/contract17
   '(begin
      (eval '(module foo-dc17 scheme/base
               (require scheme/contract)
               (require scheme/unit)
               (let ()
                 (define/contract (foo n)
                   (-> number? number?)
                   (define-signature U^
                     ((contracted [x (-> number? number?)])))
                   (define-unit U@
                     (import)
                     (export U^)
                     (define (x n) 3))
                   (define-values/invoke-unit U@
                     (import)
                     (export U^))
                   (x (zero? n)))
                 (foo 3))))
      (eval '(require 'foo-dc17)))
   "(function foo)")
  
  (test/spec-failed
   'define/contract18
   '(begin
      (eval '(module foo-dc18 scheme/base
               (require scheme/contract)
               (require scheme/unit)
               (let ()
                 (define-signature U^
                   ((contracted [x (-> number? number?)])))
                 (define-unit U@
                   (import)
                   (export U^)
                   ;; Can't define/contract x directly because
                   ;; x ends up bound to a transformer and thus
                   ;; is syntax.
                   (define/contract (y n)
                     (-> number? boolean?) #t)
                   (define x y))
                 (define-values/invoke-unit U@
                   (import)
                   (export U^))
                 (x 3))))
      (eval '(require 'foo-dc18)))
   "(unit U@)")
  
  (test/spec-failed
   'define/contract19
   '(let ()
      (define y 3)
      (define/contract (f n)
        (-> number? number?)
        #:freevar y (-> number? boolean?)
        3)
      1)
   "top-level")
  
  (test/spec-passed
   'define/contract20
   '(let ()
      (define y (lambda (n) 4))
      (define/contract (f n)
        (-> number? number?)
        #:freevar y (-> number? boolean?)
        3)
      1))
  
  (test/spec-passed
   'define/contract21
   '(let ()
      (define y (lambda (n) 4))
      (define/contract (f n)
        (-> number? number?)
        #:freevar y (-> number? boolean?)
        (if (y n) 3 1))
      1))
  
  (test/spec-failed
   'define/contract22
   '(let ()
      (define y 4)
      (define/contract (f n)
        (-> number? number?)
        #:freevar y (-> number? boolean?)
        3)
      1)
   "top-level")

  (test/spec-failed
   'define/contract23
   '(let ()
      (define y (lambda (n) #t))
      (define/contract (f n)
        (-> number? number?)
        #:freevar y (-> number? number?)
        (y n))
      (f 5))
   "top-level")
  
  (test/spec-failed
   'define/contract24
   '(let ()
      (define y (lambda (n) 4))
      (define/contract (f n)
        (-> number? number?)
        #:freevar y (-> number? boolean?)
        (if (y #t) 3 1))
      (f 5))
   "(function f)")
  
  (test/spec-failed
   'define/contract25
   '(let ()
      (define y #t)
      (define z 3)
      (define/contract f
        number?
        #:freevars ([y number?] [z number?])
        (+ y z))
      1)
   "top-level")
  


;                                                                                                                                  
;                                                                                                                                  
;                                                                                                                                  
;        ;          ;;;;                                                         ;                                                 
;       ;;         ;   ;                                                         ;                                                 
;        ;         ;                                ;                      ;    ;                        ;                      ;  
;        ;         ;                                ;                      ;    ;                        ;                      ;  
;     ;; ;   ;;;  ;;;; ;  ; ;;    ;;;          ;;; ;;;; ; ;;;;  ;;   ;;;  ;;;;  ;   ;;;     ;;    ; ;;  ;;;; ; ;;  ;;;    ;;;  ;;;;
;    ;  ;;  ;   ;  ;  ;; ;;;  ;  ;   ;        ;  ;  ;  ;;;   ;   ;  ;   ;  ;   ;   ;   ;   ;  ;  ;;;  ;  ;  ;;;   ;   ;  ;   ;  ;  
;   ;    ;  ;;;;;  ;   ;  ;   ;  ;;;;;        ;     ;   ;    ;   ;  ;      ;   ;   ;      ;    ;  ;   ;  ;   ;       ;;  ;      ;  
;   ;    ;  ;      ;   ;  ;   ;  ;      ;;;;   ;;   ;   ;    ;   ;  ;      ;   ;   ;      ;    ;  ;   ;  ;   ;     ;; ;  ;      ;  
;   ;    ;  ;      ;   ;  ;   ;  ;               ;  ;   ;    ;   ;  ;      ;   ;   ;      ;    ;  ;   ;  ;   ;    ;   ;  ;      ;  
;    ;  ;;; ;   ;  ;   ;  ;   ;  ;   ;        ;  ;  ; ; ;    ;  ;;; ;   ;  ; ;;    ;   ;   ;  ;   ;   ;  ; ; ;    ;  ;;  ;   ;  ; ;
;     ;; ;   ;;;  ;;;;;;;;;; ;;;  ;;;         ;;;   ;; ;;;    ;; ;   ;;;   ;; ;     ;;;     ;;   ;;; ;;; ;; ;;;    ;; ;;  ;;;   ;; 
;                                                                                                                                  
;                                                                                                                                  
;                                                                                                                                  

  (test/spec-passed
   'define-struct/contract1
   '(let ()
      (define-struct/contract foo ([x number?] [y number?]))
      1))

  (test/spec-passed
   'define-struct/contract2
   '(let ()
      (define-struct/contract foo ([x number?] [y number?]))
      (make-foo 1 2)))
  
  (test/spec-failed
   'define-struct/contract3
   '(let ()
      (define-struct/contract foo ([x number?] [y number?]))
      (make-foo 1 #t))
   "top-level")
  
  (test/spec-passed
   'define-struct/contract4
   '(let ()
      (define-struct/contract foo ([x number?] [y number?]))
      (foo-y (make-foo 2 3))))
  
  (test/spec-failed
   'define-struct/contract5
   '(let ()
      (define-struct/contract foo ([x number?] [y number?]))
      (foo-y 1))
   "top-level")
  
  (test/spec-passed
   'define-struct/contract6
   '(let ()
      (define-struct/contract foo ([x number?] [y number?]) #:mutable)
      (set-foo-y! (make-foo 1 2) 3)
      (set-foo-x! (make-foo 1 2) 3)))
  
  (test/spec-failed
   'define-struct/contract7
   '(let ()
      (define-struct/contract foo ([x number?] [y number?]) #:mutable)
      (set-foo-y! (make-foo 1 2) #f))
   "top-level")
  
  (test/spec-passed
   'define-struct/contract8
   '(let ()
      (define-struct/contract foo ([(x #:mutable) number?] [y number?]))
      (set-foo-x! (make-foo 1 2) 4)))
  
  (test/spec-failed
   'define-struct/contract9
   '(let ()
      (define-struct/contract foo ([(x #:mutable) number?] [y number?]))
      (set-foo-x! (make-foo 1 2) #f))
   "top-level")
  
  (test/spec-failed
   'define-struct/contract10
   '(let ()
      (define-struct/contract foo ([x number?] [(y #:auto) number?]))
      (make-foo 1))
   "(struct foo)")
  
  (test/spec-passed
   'define-struct/contract11
   '(let ()
      (define-struct/contract foo ([x number?] [(y #:auto) number?]) #:auto-value 3)
      (make-foo 1)))
  
  (test/spec-passed
   'define-struct/contract12
   '(let ()
      (define-struct/contract foo ([x number?] [(y #:auto #:mutable) number?]) #:auto-value 3)
      (set-foo-y! (make-foo 1) 3)))
  
  (test/spec-failed
   'define-struct/contract13
   '(let ()
      (define-struct/contract foo ([x number?] [(y #:auto #:mutable) number?]) #:auto-value 3)
      (set-foo-y! (make-foo 1) #t))
   "top-level")
  
  (test/spec-passed
   'define-struct/contract14
   '(let ()
      (define-struct/contract foo ([x number?] [y number?]) #:transparent)
      1))

  (test/spec-passed
    'define-struct/contract15
    '(let ()
       (define-struct foo (x))
       (define-struct/contract (bar foo) ([z string?]))
       (make-bar 2 "x")))

  (test/spec-failed
    'define-struct/contract16
    '(let ()
       (define-struct foo (x))
       (define-struct/contract (bar foo) ([z string?]))
       (make-bar 2 #f))
    "top-level")

  (test/spec-passed
    'define-struct/contract17
    '(let ()
       (define-struct foo (x))
       (define-struct/contract (bar foo) ([z string?]) #:mutable)
       (set-bar-z! (make-bar 2 "x") "y")))

  (test/spec-failed
    'define-struct/contract18
    '(let ()
       (define-struct foo (x))
       (define-struct/contract (bar foo) ([z string?]) #:mutable)
       (set-bar-z! (make-bar 2 "x") #f))
    "top-level")

  (test/spec-passed
    'define-struct/contract19
    '(let ()
       (define-struct foo (x))
       (define-struct/contract (bar foo) ([z string?]))
       (define-struct/contract (baz bar) ([x number?]))
       (make-baz 2 "x" 5)))

  (test/spec-failed
    'define-struct/contract20
    '(let ()
       (define-struct foo (x))
       (define-struct/contract (bar foo) ([z string?]))
       (define-struct/contract (baz bar) ([x number?]))
       (make-baz 2 "x" #f))
    "top-level")

  (test/spec-failed
    'define-struct/contract21
    '(let ()
       (define-struct foo (x))
       (define-struct/contract (bar foo) ([z string?]))
       (define-struct/contract (baz bar) ([x number?]))
       (make-baz 2 #f 3))
    "top-level")

  (test/spec-passed
    'define-struct/contract21
    '(let ()
       (define-struct foo (x) #:mutable)
       (define-struct/contract (bar foo) ([z string?]))
       (set-foo-x! (make-bar 2 "x") #f)))

  (test/spec-passed
   'define-struct/contract22
   '(define-struct/contract foo ([x number?] [y number?]) #:mutable #:transparent))

  (test/spec-passed
   'define-struct/contract23
   '(define-struct/contract foo ([x number?] [y number?])
                            #:mutable #:transparent
                            #:property prop:custom-write
                            (lambda (a b c) (void))))
;                                                                                  
;                                                                                  
;                                                                                  
;              ;      ;                                                            
;                    ;;                                                            
;                 ;   ;                                  ;                      ;  
;                 ;   ;                                  ;                      ;  
;  ;;; ;;; ;;; ; ;;;; ; ;;          ;;;     ;;    ; ;;  ;;;; ; ;;  ;;;    ;;;  ;;;;
;   ;   ;   ; ;;  ;   ;;  ;        ;   ;   ;  ;  ;;;  ;  ;  ;;;   ;   ;  ;   ;  ;  
;   ;   ;   ;  ;  ;   ;   ;        ;      ;    ;  ;   ;  ;   ;       ;;  ;      ;  
;    ; ; ; ;   ;  ;   ;   ;  ;;;;  ;      ;    ;  ;   ;  ;   ;     ;; ;  ;      ;  
;    ; ; ; ;   ;  ;   ;   ;        ;      ;    ;  ;   ;  ;   ;    ;   ;  ;      ;  
;    ;;  ;;    ;  ; ; ;   ;        ;   ;   ;  ;   ;   ;  ; ; ;    ;  ;;  ;   ;  ; ;
;     ;   ;   ;;; ;; ;;; ;;;        ;;;     ;;   ;;; ;;; ;; ;;;    ;; ;;  ;;;   ;; 
;                                                                                  
;                                                                                  
;                                                                                  

  (test/spec-passed
   'with-contract1
   '(let ()
      (with-contract odd-even
        ([oddp (-> number? boolean?)]
         [evenp (-> number? boolean?)])
        (define (oddp n)
          (if (zero? n) #f (evenp (sub1 n))))
        (define (evenp n)
          (if (zero? n) #t (oddp (sub1 n)))))
      (oddp 5)))
  
  (test/spec-failed
   'with-contract2
   '(let ()
      (with-contract odd-even
        ([oddp (-> number? boolean?)]
         [evenp (-> number? boolean?)])
        (define (oddp n)
          (if (zero? n) #f (evenp (sub1 n))))
        (define (evenp n)
          (if (zero? n) #t (oddp (sub1 n)))))
      (oddp #t))
   "top-level")
  
  (test/spec-failed
   'with-contract3
   '(let ()
      (with-contract odd-even
        ([oddp (-> number? boolean?)]
         [evenp (-> number? boolean?)])
        (define (oddp n)
          (if (zero? n) n (evenp (sub1 n))))
        (define (evenp n)
          (if (zero? n) #t (oddp (sub1 n)))))
      (oddp 4))
   "(region odd-even)")
  
  ;; Functions within the same with-contract region can call
  ;; each other however they want, so here we have even?
  ;; call odd? with a boolean, even though its contract in
  ;; the odd-even contract says it only takes numbers.
  (test/spec-passed
   'with-contract4
   '(let ()
      (with-contract odd-even
        ([oddp (-> number? boolean?)]
         [evenp (-> number? boolean?)])
        (define (oddp n)
          (cond
            [(not (number? n)) #f]
            [(zero? n) #f]
            [else (evenp (sub1 n))]))
        (define (evenp n)
          (if (zero? n) #t (oddp (zero? n)))))
      (oddp 5)))
  
  (test/spec-passed
   'with-contract5
   '(let ()
      (with-contract region1
        ([x (-> number? number?)])
        (with-contract region2
          ([y (-> number? boolean?)])
          (define (y n) #t))
        (define (x n) (if (y n) 0 3)))
      (x 4)))
  
  (test/spec-failed
   'with-contract6
   '(let ()
      (with-contract region1
        ([x (-> number? number?)])
        (with-contract region2
          ([y (-> number? boolean?)])
          (define (y n) #t))
        (define (x n) (y n)))
      (x 4))
   "(region region1)")
  
  (test/spec-failed
   'with-contract7
   '(let ()
      (with-contract region1
        ([x (-> number? number?)])
        (with-contract region2
          ([y (-> number? boolean?)])
          (define (y n) #t))
        (define (x n) (if (y #t) 4 0)))
      (x 4))
   "(region region1)")
  
  (test/spec-failed
   'with-contract8
   '(let ()
      (with-contract region1
        ([x (-> number? number?)])
        (with-contract region2
          ([y (-> number? boolean?)])
          (define (y n) 3))
        (define (x n) (if (y n) 4 0)))
      (x 4))
   "(region region2)")
  
  ;; make sure uncontracted exports make it out
  (test/spec-passed
   'with-contract9
   '(let ()
      (with-contract region1 ()
        (define f 3))
      f))
  
  (test/spec-failed
   'with-contract10
   '(let ()
      (with-contract r
        ([x number?])
        (define x 3)
        (define-values () 
          (begin (set! x #f) (values))))
      x)
   "(region r)")
  
  (test/spec-failed
   'with-contract11
   '(let ()
      (with-contract r
        ([x number?])
        (define x 3))
      (set! x #f)
      x)
   "top-level")

;                                                                                                                         
;                                                                                                                         
;                                                                                                                         
;           ;;;;         ;;                     ;                                      ;                               ;  
;           ;;;;         ;;                    ;;                                     ;;                              ;;  
;    ;;;;   ;;;;;;;           ;;;     ;;;;;  ;;;;;        ;;;;;   ;;;;   ;;;; ;;;   ;;;;; ;;; ;;; ;;;;;;;    ;;;;;  ;;;;; 
;   ;;;;;;  ;;;;;;;;   ;;;;  ;;;;;   ;;;;;; ;;;;;;       ;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;; ;;;;;;; ;;;;;;;;  ;;;;;; ;;;;;; 
;  ;;;;;;;; ;;;;;;;;;  ;;;; ;;;; ;; ;;;;;;;  ;;;;       ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;  ;;;; ;;     ;;;; ;;;;;;;  ;;;;  
;  ;;;; ;;; ;;;; ;;;;  ;;;; ;;;;;;; ;;;;     ;;;;  ;;;;;;;;;    ;;;; ;;; ;;;; ;;;;  ;;;;  ;;;;     ;;;;;;; ;;;;     ;;;;  
;  ;;;;;;;; ;;;;;;;;;  ;;;; ;;;;;   ;;;;;;;  ;;;;; ;;;;;;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;; ;;;;    ;;  ;;;; ;;;;;;;  ;;;;; 
;   ;;;;;;  ;;;;;;;;   ;;;;  ;;;;;;  ;;;;;;  ;;;;;       ;;;;;;  ;;;;;;  ;;;; ;;;;  ;;;;; ;;;;    ;;;;;;;;  ;;;;;;  ;;;;; 
;    ;;;;   ;;;;;;;   ;;;;;   ;;;;    ;;;;;   ;;;;        ;;;;;   ;;;;   ;;;; ;;;;   ;;;; ;;;;     ;; ;;;;   ;;;;;   ;;;; 
;                     ;;;;;                                                                                               
;                     ;;;;                                                                                                
;                                                                                                                         

  
  (test/spec-passed
   'object-contract0
   '(contract (object-contract)
              (new object%)
              'pos
              'neg))

  (test/pos-blame
   'object-contract/field1
   '(contract (object-contract (field x integer?))
              (new object%)
              'pos
              'neg))
  
  (test/pos-blame
   'object-contract/field2
   '(contract (object-contract (field x integer?))
              (new (class object% (field [x #t]) (super-new)))
              'pos
              'neg))
  
  (test/spec-passed/result
   'object-contract/field3
   '(get-field
     x
     (contract (object-contract (field x integer?))
               (new (class object% (field [x 12]) (super-new)))
               'pos
               'neg))
   12)
  
  (test/pos-blame
   'object-contract/field4
   '(contract (object-contract (field x boolean?) (field y boolean?))
              (new (class object% (field [x #t] [y 'x]) (super-new)))
              'pos
              'neg))
  
  (test/pos-blame
   'object-contract/field5
   '(contract (object-contract (field x symbol?) (field y symbol?))
              (new (class object% (field [x #t] [y 'x]) (super-new)))
              'pos
              'neg))
  
  (test/spec-passed/result
   'object-contract/field6
   '(let ([o (contract (object-contract [m (integer? . -> . integer?)])
                       (new (class object% (field [x 1]) (define/public (m y) x) (super-new)))
                       'pos
                       'neg)])
      (list (send o m 2)
            (send/apply o m '(2))
            (let ([x '(2)]) (send o m . x))
            (with-method ([mm (o m)])
              (mm 2))
            (send* o (m 3) (m 4))))
   (list 1 1 1 1 1))
  
  (test/spec-passed/result
   'object-contract/field7
   '(let ([o (contract (object-contract)
                       (new (class object% (field [x 1]) (define/public (m y) x) (super-new)))
                       'pos
                       'neg)])
      (list (send o m 2)
            (send/apply o m '(2))
            (let ([x '(2)]) (send o m . x))
            (with-method ([mm (o m)])
              (mm 2))
            (send* o (m 3) (m 4))))
   (list 1 1 1 1 1))
  
  (test/spec-passed/result
   'object-contract/field8
   '(let ([o (contract (object-contract [m (integer? . -> . integer?)])
                       (new (class object% (define x 6) (define/public (m y) x) (super-new)))
                       'pos
                       'neg)])
      (list (send o m 2)
            (send/apply o m '(2))
            (let ([x '(2)]) (send o m . x))
            (with-method ([mm (o m)])
              (mm 2))
            (send* o (m 3) (m 4))))
   (list 6 6 6 6 6))
  
  (test/spec-passed/result
   'object-contract/field9
   '(let ([o (contract (object-contract)
                       (new (class object% (define x 6) (define/public (m y) x) (super-new)))
                       'pos
                       'neg)])
      (list (send o m 2)
            (send/apply o m '(2))
            (let ([x '(2)]) (send o m . x))
            (with-method ([mm (o m)])
              (mm 2))
            (send* o (m 3) (m 4))))
   (list 6 6 6 6 6))
  
  (test/spec-passed/result
   'object-contract/field10
   '(send (contract (object-contract)
                    (new (class object% (define x 1) (define/public (m y) x) (super-new)))
                    'pos
                    'neg)
          m
          2)
   1)
  
  (test/spec-passed/result
   'object-contract->1
   '(send
     (contract (object-contract (m (integer? . -> . integer?)))
               (new (class object% (define/public (m x) x) (super-new)))
               'pos
               'neg)
     m
     1)
   1)
  
  (test/pos-blame
   'object-contract->2
   '(contract (object-contract (m (integer? . -> . integer?)))
              (make-object object%)
              'pos
              'neg))
  
  (test/neg-blame
   'object-contract->3
   '(send
     (contract (object-contract (m (integer? . -> . integer?)))
               (make-object (class object% (define/public (m x) x) (super-instantiate ())))
               'pos
               'neg)
     m
     'x))
  
  (test/pos-blame
   'object-contract->4
   '(send
     (contract (object-contract (m (integer? . -> . integer?)))
               (make-object (class object% (define/public (m x) 'x) (super-instantiate ())))
               'pos
               'neg)
     m
     1))
  
  (test/pos-blame
   'object-contract->5
   '(contract (object-contract (m (integer? integer? . -> . integer?)))
              (make-object (class object% (define/public (m x) 'x) (super-instantiate ())))
              'pos
              'neg))

  (test/spec-passed/result
   'object-contract->6
   '(send
     (contract (object-contract (m (integer? . -> . any)))
               (new (class object% (define/public (m x) x) (super-new)))
               'pos
               'neg)
     m
     1)
   1)
  
  (test/neg-blame
   'object-contract->7
   '(send
     (contract (object-contract (m (integer? . -> . any)))
               (make-object (class object% (define/public (m x) x) (super-instantiate ())))
               'pos
               'neg)
     m
     'x))
  
  (test/spec-passed
   'object-contract->8
   '(begin
      (send
       (contract (object-contract (m (integer? . -> . any)))
                 (make-object (class object% (define/public (m x) (values 1 2)) (super-instantiate ())))
                 'pos
                 'neg)
       m
       1)
      (void)))
  
  (test/spec-passed
   'object-contract->9
   '(begin
      (send
       (contract (object-contract (m (integer? . -> . any)))
                 (make-object (class object% (define/public (m x) (values)) (super-instantiate ())))
                 'pos
                 'neg)
       m
       1)
      (void)))
  
  (test/spec-passed
   'object-contract->10
   '(begin
      (send (contract (object-contract (m (integer? . -> . (values integer? boolean?))))
                      (make-object (class object% (define/public (m x) (values 1 #t)) (super-instantiate ())))
                      'pos
                      'neg)
            m 1)
      (void)))
  
  (test/neg-blame
   'object-contract->11
   '(send 
     (contract (object-contract (m (integer? . -> . (values integer? boolean?))))
               (make-object (class object% (define/public (m x) (values #t #t)) (super-instantiate ())))
               'pos
               'neg)
     m
     #f))
  
  (test/pos-blame
   'object-contract->12
   '(send 
     (contract (object-contract (m (integer? . -> . (values integer? boolean?))))
               (make-object (class object% (define/public (m x) (values #t #t)) (super-instantiate ())))
               'pos
               'neg)
     m
     1))
  
  (test/pos-blame
   'object-contract->13
   '(send (contract (object-contract (m (integer? . -> . (values integer? boolean?))))
                    (make-object (class object% (define/public (m x) (values #f #t)) (super-instantiate ())))
                    'pos
                    'neg)
          m 1))
  
  (test/pos-blame
   'object-contract->14
   '(send (contract (object-contract (m (integer? . -> . (values integer? boolean?))))
                    (make-object (class object% (define/public (m x) (values 5 6)) (super-instantiate ())))
                    'pos
                    'neg)
          m 1))
  
  (test/pos-blame
   'object-contract-case->1
   '(contract (object-contract (m (case-> (boolean? . -> . boolean?)
                                          (integer? integer? . -> . integer?))))
              (new object%)
              'pos
              'neg))
  
  (test/pos-blame
   'object-contract-case->2
   '(contract (object-contract (m (case-> (boolean? . -> . boolean?)
                                          (integer? integer? . -> . integer?))))
              (new (class object% (define/public (m x) x) (super-new)))
              'pos
              'neg))
  
  (test/pos-blame
   'object-contract-case->3
   '(contract (object-contract (m (case-> (boolean? . -> . boolean?)
                                          (integer? integer? . -> . integer?))))
              (new (class object% (define/public (m x y) x) (super-new)))
              'pos
              'neg))
  
  (test/spec-passed
   'object-contract-case->4
   '(contract (object-contract (m (case-> (boolean? . -> . boolean?)
                                          (integer? integer? . -> . integer?))))
              (new (class object% 
                     (define/public m
                       (case-lambda
                         [(b) (not b)]
                         [(x y) (+ x y)]))
                     (super-new)))
              'pos
              'neg))
  
  (test/spec-passed/result
   'object-contract-case->5
   '(send (contract (object-contract (m (case-> (boolean? . -> . boolean?)
                                                (integer? integer? . -> . integer?))))
                    (new (class object% 
                           (define/public m
                             (case-lambda
                               [(b) (not b)]
                               [(x y) (+ x y)]))
                           (super-new)))
                    'pos
                    'neg)
          m 
          #t)
   #f)
  
  (test/spec-passed/result
   'object-contract-case->6
   '(send (contract (object-contract (m (case-> (boolean? . -> . boolean?)
                                                (integer? integer? . -> . integer?))))
                    (new (class object% 
                           (define/public m
                             (case-lambda
                               [(b) (not b)]
                               [(x y) (+ x y)]))
                           (super-new)))
                    'pos
                    'neg)
          m 
          3
          4)
   7)
  
  (test/pos-blame
   'object-contract->*1
   '(contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
              (new (class object%
                     (define/public m
                       (lambda (x [y 'a])
                         x))
                     (super-new)))
              'pos
              'neg))
  
  (test/pos-blame
   'object-contract->*2
   '(contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
              (new (class object%
                     (define/public m
                       (lambda (x y [z #t])
                         x))
                     (super-new)))
              'pos
              'neg))
  
  (test/spec-passed
   'object-contract->*3
   '(contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
              (new (class object%
                     (define/public m
                       (lambda (x [y 'a] [z #t])
                         x))
                     (super-new)))
              'pos
              'neg))
  
  (test/spec-passed/result
   'object-contract->*4
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               x))
                           (super-new)))
                    'pos
                    'neg)
          m
          1)
   1)
  
  (test/spec-passed/result
   'object-contract->*5
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               x))
                           (super-new)))
                    'pos
                    'neg)
          m
          2
          'z)
   2)
  
  (test/spec-passed/result
   'object-contract->*7
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               x))
                           (super-new)))
                    'pos
                    'neg)
          m
          3
          'z
          #f)
   3)
  
  (test/neg-blame
   'object-contract->*8
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               x))
                           (super-new)))
                    'pos
                    'neg)
          m
          #f))
  
  (test/neg-blame
   'object-contract->*9
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               x))
                           (super-new)))
                    'pos
                    'neg)
          m
          2
          4))
  
  (test/neg-blame
   'object-contract->*10
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               x))
                           (super-new)))
                    'pos
                    'neg)
          m
          3
          'z
          'y))
  
  (test/pos-blame
   'object-contract->*11
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) number?)))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               'x))
                           (super-new)))
                    'pos
                    'neg)
          m
          3
          'z
          #f))
  
  (test/spec-passed/result
   'object-contract->*12
   '(let-values ([(x y)
                  (send (contract (object-contract (m (->* (integer?) (symbol? boolean?) (values number? symbol?))))
                                  (new (class object%
                                         (define/public m
                                           (lambda (x [y 'a] [z #t])
                                             (values 1 'x)))
                                         (super-new)))
                                  'pos
                                  'neg)
                        m
                        3
                        'z
                        #f)])
      (cons x y))
   (cons 1 'x))
  
  (test/pos-blame
   'object-contract->*13
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) (values number? symbol?))))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               (values 'x 'x)))
                           (super-new)))
                    'pos
                    'neg)
          m
          3
          'z
          #f))
  
  (test/pos-blame
   'object-contract->*14
   '(send (contract (object-contract (m (->* (integer?) (symbol? boolean?) (values number? symbol?))))
                    (new (class object%
                           (define/public m
                             (lambda (x [y 'a] [z #t])
                               (values 1 1)))
                           (super-new)))
                    'pos
                    'neg)
          m
          3
          'z
          #f))

  (test/pos-blame
   'object-contract->*1
   '(contract (object-contract (m (-> integer? boolean?)))
              (new (class object% (define/public (m x y) x) (super-new)))
              'pos
              'neg))
  
  (test/neg-blame
   'object-contract->*2
   '(send (contract (object-contract (m (-> integer? boolean?)))
                    (new (class object% (define/public (m x) x) (super-new)))
                    'pos
                    'neg)
          m #f))
  
  (test/pos-blame
   'object-contract->*3
   '(send (contract (object-contract (m (-> integer? boolean?)))
                    (new (class object% (define/public (m x) x) (super-new)))
                    'pos
                    'neg)
          m 1))
  
  (test/spec-passed
   'object-contract->*4
   '(send (contract (object-contract (m (-> integer? boolean?)))
                    (new (class object% (define/public (m x) #f) (super-new)))
                    'pos
                    'neg)
          m 1))
  
  (test/pos-blame
   'object-contract->*5
   '(contract (object-contract (m (->* (integer?) () #:rest any/c boolean?)))
              (new (class object% (define/public (m x y . z) x) (super-new)))
              'pos
              'neg))
  
  (test/neg-blame
   'object-contract->*6
   '(send (contract (object-contract (m (->* (integer?) () #:rest any/c boolean?)))
                    (new (class object% (define/public (m x . z) x) (super-new)))
                    'pos
                    'neg)
          m #t))
  
  (test/pos-blame
   'object-contract->*7
   '(send (contract (object-contract (m (->* (integer?) () #:rest any/c boolean?)))
                    (new (class object% (define/public (m x . z) 1) (super-new)))
                    'pos
                    'neg)
          m 1))
  
  (test/spec-passed
   'object-contract->*8
   '(send (contract (object-contract (m (->* (integer?) () #:rest any/c boolean?)))
                    (new (class object% (define/public (m x . z) #f) (super-new)))
                    'pos
                    'neg)
          m 1))
  
  (test/spec-passed
   'object-contract->*9
   '(send (contract (object-contract (m (->* () () #:rest (listof number?) boolean?)))
                    (new (class object% (define/public (m . z) #f) (super-new)))
                    'pos
                    'neg)
          m 1 2 3))
  
  (test/neg-blame
   'object-contract->*10
   '(send (contract (object-contract (m (->* () () #:rest (listof number?) boolean?)))
                    (new (class object% (define/public (m . z) #f) (super-new)))
                    'pos
                    'neg)
          m 
          #t))

  (test/spec-passed
   'object-contract-->d1
   '(send (contract (object-contract (m (->d ([x number?]) () [range (<=/c x)])))
                    (new (class object% (define/public m (lambda (x) (- x 1))) (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/spec-passed
   'object-contract-->d1b
   '(send (contract (object-contract (m (->d ([x number?]) () [range (<=/c x)])))
                    (new (class object% (define/public m (lambda (x) (- x 1))) (super-new)))
                    'pos
                    'neg)
          m
          1))

  (test/pos-blame 
   'object-contract-->d2
   '(send (contract (object-contract (m (->d ([x number?]) () [range (<=/c x)])))
                    (new (class object% (define/public m (lambda (x) (+ x 1))) (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/pos-blame 
   'object-contract-->d2b
   '(send (contract (object-contract (m (->d ([x number?]) () [range (<=/c x)])))
                    (new (class object% (define/public m (lambda (x) (+ x 1))) (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/spec-passed
   'object-contract-->d3
   '(send (contract (object-contract (m (->d () () #:rest rst (listof number?) [range any/c])))
                    (new (class object% (define/public m (lambda w 1)) (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/neg-blame
   'object-contract-->d4
   '(send (contract (object-contract (m (->d () () #:rest rst (listof number?) [range any/c])))
                    (new (class object% (define/public m (lambda w 1)) (super-new)))
                    'pos 
                    'neg)
          m
          #f))
    
  (test/spec-passed
   'object-contract-->d5
   '(send (contract (object-contract (m (->d () () any)))
                    (new (class object% (define/public m (lambda () 1)) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/spec-passed
   'object-contract-->d6
   '(send (contract (object-contract (m (->d () () (values [x number?] [y (>=/c x)]))))
                    (new (class object% (define/public m (lambda () (values 1 2))) (super-new)))
                    'pos
                    'neg)
          m))

  (test/pos-blame
   'object-contract-->d7
   '(send (contract (object-contract (m (->d () () (values [x number?] [y (>=/c x)]))))
                    (new (class object% (define/public m (lambda () (values 2 1))) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/neg-blame
   'object-contract-->d/this-1
   '(send (contract (object-contract (m (->d ([x (and/c integer? (lambda (x) (= x (get-field f this))))])
                                             ()
                                             any)))
                    (new (class object% (field [f 1]) (define/public m (lambda (x) 1)) (super-new)))
                    'pos
                    'neg)
          m
          2))
  
  (test/spec-passed
   'object-contract-->d/this-2
   '(send (contract (object-contract (m (->d ([x (and/c integer? (lambda (x) (= x (get-field f this))))])
                                             ()
                                             any)))
                    (new (class object% (field [f 1]) (define/public m (lambda (x) 1)) (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/neg-blame
   'object-contract-->d/this-3
   '(send (contract (object-contract (m (->d ([x (and/c integer? (lambda (x) (= x (get-field f this))))])
                                             ()
                                             #:rest rest-var any/c
                                             any)))
                    (new (class object% (field [f 1]) (define/public m (lambda (x . rest) 1)) (super-new)))
                    'pos
                    'neg)
          m
          2))
  
  (test/spec-passed
   'object-contract-->d/this-4
   '(send (contract (object-contract (m (->d ([x (and/c integer? (lambda (x) (= x (get-field f this))))])
                                             ()
                                             #:rest rest-var any/c
                                             any)))
                    (new (class object% (field [f 1]) (define/public m (lambda (x . rest) 1)) (super-new)))
                    'pos
                    'neg)
          m
          1))

  (test/spec-passed
   'object-contract-->pp1
   '(send (contract (object-contract (m (->d ([x number?]) () #:pre-cond #t [unused (<=/c x)] #:post-cond #t)))
                    (new (class object% (define/public m (lambda (x) (- x 1))) (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/spec-passed
   'object-contract-->pp1b
   '(send (contract (object-contract (m (->d ([x number?]) () #:pre-cond #t [unused (<=/c x)] #:post-cond #t)))
                    (new (class object%
                           (define/public m (case-lambda [(x) (- x 1)]
                                                         [(x y) y]))
                           (super-new)))
                    'pos
                    'neg)
          m
          1))

  (test/pos-blame 
   'object-contract-->pp2
   '(send (contract (object-contract (m (->d ([x number?]) () #:pre-cond #t [unused (<=/c x)] #:post-cond #t)))
                    (new (class object% (define/public m (lambda (x) (+ x 1))) (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/pos-blame 
   'object-contract-->pp2b
   '(send (contract (object-contract (m (->d ([x number?]) () #:pre-cond #t [unused (<=/c x)] #:post-cond #t)))
                    (new (class object% 
                           (define/public m (case-lambda [(x) (+ x 1)]))
                           (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/spec-passed
   'object-contract-->pp3
   '(send (contract (object-contract (m (->d () () #:rest rst (listof number?) #:pre-cond #t [unused any/c] #:post-cond #t)))
                    (new (class object% (define/public m (lambda w 1)) (super-new)))
                    'pos
                    'neg)
          m
          1))
  
  (test/neg-blame
   'object-contract-->pp4
   '(send (contract (object-contract (m (->d () () #:rest rst (listof number?) #:pre-cond #t [unused any/c] #:post-cond #t)))
                    (new (class object% (define/public m (lambda w 1)) (super-new)))
                    'pos 
                    'neg)
          m
          #f))
    
  (test/spec-passed
   'object-contract-->pp5
   '(send (contract (object-contract (m (->d () () #:pre-cond #t any)))
                    (new (class object% (define/public m (lambda () 1)) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/spec-passed
   'object-contract-->pp6
   '(send (contract (object-contract (m (->d () () #:pre-cond #t (values [x number?] [y (>=/c x)]) #:post-cond #t)))
                    (new (class object% (define/public m (lambda () (values 1 2))) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/pos-blame
   'object-contract-->pp7
   '(send (contract (object-contract (m (->d () () #:pre-cond #t (values [x number?] [y (>=/c x)]) #:post-cond #t)))
                    (new (class object% (define/public m (lambda () (values 2 1))) (super-new)))
                    'pos
                    'neg)
          m))

  (test/neg-blame
   'object-contract-->pp/this-1
   '(send (contract (object-contract (m (->d ()
                                             ()
                                             #:pre-cond (= 1 (get-field f this))
                                             [result-x any/c]
                                             #:post-cond (= 2 (get-field f this)))))
                    (new (class object% (field [f 2]) (define/public m (lambda () (set! f 3))) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/pos-blame
   'object-contract-->pp/this-2
   '(send (contract (object-contract (m (->d () ()
                                             #:pre-cond (= 1 (get-field f this))
                                             [result-x any/c]
                                             #:post-cond (= 2 (get-field f this)))))
                    (new (class object% (field [f 1]) (define/public m (lambda () (set! f 3))) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/spec-passed
   'object-contract-->pp/this-3
   '(send (contract (object-contract (m (->d () ()
                                             #:pre-cond (= 1 (get-field f this))
                                              [result-x any/c]
                                              #:post-cond (= 2 (get-field f this)))))
                    (new (class object% (field [f 1]) (define/public m (lambda () (set! f 2))) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/neg-blame
   'object-contract-->pp/this-4
   '(send (contract (object-contract (m (->d () ()
                                             #:rest rest-id any/c
                                             #:pre-cond (= 1 (get-field f this))
                                             [result-x any/c]
                                             #:post-cond (= 2 (get-field f this)))))
                    (new (class object% (field [f 2]) (define/public m (lambda args (set! f 3))) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/pos-blame
   'object-contract-->pp/this-5
   '(send (contract (object-contract (m (->d () ()
                                             #:rest rest-id any/c
                                             #:pre-cond (= 1 (get-field f this))
                                             [result-x any/c]
                                             #:post-cond (= 2 (get-field f this)))))
                    (new (class object% (field [f 1]) (define/public m (lambda args (set! f 3))) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/spec-passed
   'object-contract-->pp/this-6
   '(send (contract (object-contract (m (->d () ()
                                             #:rest rest-id any/c
                                             #:pre-cond (= 1 (get-field f this))
                                             [result-x any/c]
                                             #:post-cond (= 2 (get-field f this)))))
                    (new (class object% (field [f 1]) (define/public m (lambda args (set! f 2))) (super-new)))
                    'pos
                    'neg)
          m))
  
  (test/spec-passed/result
   'object-contract-drop-method1
   '(send (contract (object-contract (m (-> integer? integer?)))
                    (new (class object% (define/public (m x) x) (define/public (n x) x) (super-new)))
                    'pos
                    'neg)
          n 1)
   1)
  
  (test/spec-passed/result
   'object-contract-drop-method2
   '(let ([o (contract (object-contract (m (-> integer? integer?)))
                       (new (class object% (define/public (m x) x) (define/public (n x) x) (super-new)))
                       'pos
                       'neg)])
      (with-method ([m (o m)]
                    [n (o n)])
        (list (m 1) (n 2))))
   '(1 2))
  
  (test/spec-passed/result
   'object-contract-drop-field1
   '(get-field g (contract (object-contract (field f integer?))
                           (new (class object% (field [f 1] [g 2]) (super-new)))
                           'pos
                           'neg))
   2)
  
  (test/spec-passed/result
   'object-contract-drop-field2
   '(field-bound? g (contract (object-contract (field f integer?))
                              (new (class object% (field [f 1] [g 2]) (super-new)))
                              'pos
                              'neg))
   #t)
  
  (test/spec-passed/result
   'object-contract-drop-field3
   '(field-names
     (contract (object-contract)
               (new (class object% (field [g 2]) (super-new)))
               'pos
               'neg))
   '(g))

  
  (test/spec-passed/result
   'object-contract-ho-method1
   '(send (contract (object-contract (m (-> (-> integer? integer?) integer?)))
                    (new (class object% (define/public (m f) (f 1)) (super-new)))
                    'pos
                    'neg)
          m
          (λ (x) x))
   1)
  
  (test/spec-passed/result
   'object-contract-ho-method2
   '(send (contract (object-contract (m (-> (->* (integer?) () integer?) integer?)))
                    (new (class object% (define/public (m f) (f 1)) (super-new)))
                    'pos
                    'neg)
          m
          (λ (x) x))
   1)
  
  (test/spec-passed/result
   'object-contract-ho-method3
   '(send (contract (object-contract (m (-> (->d ([x integer?]) () [r integer?]) integer?)))
                    (new (class object% (define/public (m f) (f 1)) (super-new)))
                    'pos
                    'neg)
          m
          (λ (x) x))
   1)
  
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;;
  ;; test error message has right format
  ;;
  
  (test/spec-passed/result
   'wrong-method-arity-error-message
   '(with-handlers ([exn:fail? exn-message])
      (send (contract (object-contract [m (integer? . -> . integer?)])
                      (new (class object% (define/public (m x) x) (super-new)))
                      'pos
                      'neg)
            m
            1
            2))
   "procedure m method: expects 1 argument, given 2: 1 2")

  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;;
  ;; tests object utilities to be sure wrappers work right
  ;;
  
  (let* ([o1 (contract-eval '(new object%))]
         [o2 (contract-eval `(contract (object-contract) ,o1 'pos 'neg))])
    (test #t (contract-eval 'object=?) o1 o1)
    (test #f (contract-eval 'object=?) o1 (contract-eval '(new object%)))
    (test #t (contract-eval 'object=?) o1 o2)
    (test #t (contract-eval 'object=?) o2 o1)
    (test #f (contract-eval 'object=?) (contract-eval '(new object%)) o2))
  
  (ctest #t
         method-in-interface? 
         'm 
         (object-interface 
          (contract
           (object-contract (m (integer? . -> . integer?)))
           (new (class object% (define/public (m x) x) (super-new)))
           'pos
           'neg)))
  
  (let* ([i<%> (contract-eval '(interface ()))]
         [c% (contract-eval `(class* object% (,i<%>) (super-new)))]
         [o (contract-eval `(new ,c%))])
    (test #t (contract-eval 'is-a?) o i<%>)
    (test #t (contract-eval 'is-a?) o c%)
    (test #t (contract-eval 'is-a?) (contract-eval `(contract (object-contract) ,o 'pos 'neg)) i<%>)
    (test #t (contract-eval 'is-a?) (contract-eval `(contract (object-contract) ,o 'pos 'neg)) c%))
  
  (let ([c% (parameterize ([current-inspector (make-inspector)])
              (contract-eval '(class object% (super-new))))])
    (test (list c% #f) 
          'object-info
          (contract-eval
           `(call-with-values 
             (lambda () (object-info (contract (object-contract) (new ,c%) 'pos 'neg)))
             list))))

  ;; object->vector tests
  (let* ([obj
          (parameterize ([current-inspector (make-inspector)])
            (contract-eval '(new (class object% (field [x 1] [y 2]) (super-new)))))]
         [vec (contract-eval `(object->vector ,obj))])
    (test vec
          (contract-eval 'object->vector)
          (contract-eval
           `(contract (object-contract (field x integer?) (field y integer?))
                      ,obj
                      'pos
                      'neg))))


;                                                                                    
;                                                                                    
;                                                                                    
;    ;;                                           ;           ;;;;      ;;;;         
;    ;;                                          ;;           ;;;;      ;;;;         
;       ;;;;;;; ;;;;  ;;;;;;; ;;;;  ;;;; ;;;;  ;;;;; ;;;;;;;  ;;;;;;;   ;;;;   ;;;   
;  ;;;; ;;;;;;;;;;;;; ;;;;;;;;;;;;; ;;;; ;;;; ;;;;;; ;;;;;;;; ;;;;;;;;  ;;;;  ;;;;;  
;  ;;;; ;;;; ;;; ;;;; ;;;; ;;; ;;;; ;;;; ;;;;  ;;;;      ;;;; ;;;;;;;;; ;;;; ;;;; ;; 
;  ;;;; ;;;; ;;; ;;;; ;;;; ;;; ;;;; ;;;; ;;;;  ;;;;   ;;;;;;; ;;;; ;;;; ;;;; ;;;;;;; 
;  ;;;; ;;;; ;;; ;;;; ;;;; ;;; ;;;; ;;;; ;;;;  ;;;;; ;;  ;;;; ;;;;;;;;; ;;;; ;;;;;   
;  ;;;; ;;;; ;;; ;;;; ;;;; ;;; ;;;; ;;;;;;;;;  ;;;;; ;;;;;;;; ;;;;;;;;  ;;;;  ;;;;;; 
;  ;;;; ;;;; ;;; ;;;; ;;;; ;;; ;;;;  ;;; ;;;;   ;;;;  ;; ;;;; ;;;;;;;   ;;;;   ;;;;  
;                                                                                    
;                                                                                    
;                                                                                    


  (test/pos-blame
   'immutable1
   '(let ([ct (contract (listof (boolean? . -> . boolean?)) 
                        #f 
                        'pos
                        'neg)])
      ((car ct) 1)))
  
  (test/neg-blame
   'immutable2
   '(let ([ct (contract (listof (boolean? . -> . boolean?)) 
                        (list (lambda (x) x)) 
                        'pos
                        'neg)])
      ((car ct) 1)))
  
  (test/neg-blame
   'immutable3
   '(let ([ct (contract (listof (number? . -> . boolean?)) 
                        (list (lambda (x) 1)) 
                        'pos
                        'neg)])
      ((car ct) #f)))
  
  (test/pos-blame
   'immutable4
   '(let ([ct (contract (listof (number? . -> . boolean?)) 
                        (list (lambda (x) 1)) 
                        'pos
                        'neg)])
      ((car ct) 1)))
  
  (test/spec-passed
   'immutable5
   '(let ([ct (contract (listof (number? . -> . boolean?)) 
                        (list (lambda (x) #t)) 
                        'pos
                        'neg)])
      ((car ct) 1)))
  

  (test/pos-blame
   'immutable6
   '(contract (cons/c (boolean? . -> . boolean?) (boolean? . -> . boolean?)) 
              #f 
              'pos
              'neg))
  
  (test/spec-passed
   'immutable7
   '(let ([ct (contract (non-empty-listof (boolean? . -> . boolean?))
                        (list (λ (x) #t))
                        'pos
                        'neg)])
      ((car ct) #f)))
  
  (test/neg-blame
   'immutable8
   '(let ([ct (contract (cons/c (number? . -> . boolean?) (number? . -> . boolean?)) 
                        (cons (lambda (x) 1) (lambda (x) 1))
                        'pos
                        'neg)])
      ((car ct) #f)))
  
  (test/neg-blame
   'immutable9
   '(let ([ct (contract (cons/c (number? . -> . boolean?) (number? . -> . boolean?)) 
                        (cons (lambda (x) 1) (lambda (x) 1))
                        'pos
                        'neg)])
      ((cdr ct) #f)))
  
  (test/pos-blame
   'immutable10
   '(let ([ct (contract (cons/c (number? . -> . boolean?) (number? . -> . boolean?)) 
                        (cons (lambda (x) 1) (lambda (x) 1)) 
                        'pos
                        'neg)])
      ((car ct) 1)))
  
  (test/pos-blame
   'immutable11
   '(let ([ct (contract (cons/c (number? . -> . boolean?) (number? . -> . boolean?)) 
                        (cons (lambda (x) 1) (lambda (x) 1)) 
                        'pos
                        'neg)])
      ((cdr ct) 1)))
  
  (test/spec-passed
   'immutable12
   '(let ([ct (contract (cons/c (number? . -> . boolean?) (number? . -> . boolean?)) 
                        (cons (lambda (x) #t) (lambda (x) #t)) 
                        'pos
                        'neg)])
      ((car ct) 1)))
  
  (test/spec-passed
   'immutable13
   '(let ([ct (contract (cons/c (number? . -> . boolean?) (number? . -> . boolean?)) 
                        (cons (lambda (x) #t) (lambda (x) #t)) 
                        'pos
                        'neg)])
      ((cdr ct) 1)))
  
  (test/spec-passed/result
   'immutable14
   '(contract (cons/c number? boolean?) 
              (cons 1 #t) 
              'pos
              'neg)
   (cons 1 #t))
  
  (test/pos-blame
   'immutable15
   '(contract (list/c (number? . -> . boolean?) (number? . -> . boolean?)) 
              #f
              'pos
              'neg))
  
  (test/pos-blame
   'immutable17
   '(contract (list/c (number? . -> . boolean?) (number? . -> . boolean?)) 
              (list (lambda (x) #t)) 
              'pos
              'neg))
  
  (test/pos-blame
   'immutable18
   '(contract (list/c (number? . -> . boolean?) (number? . -> . boolean?)) 
              (list (lambda (x) #t) (lambda (x) #t) (lambda (x) #t)) 
              'pos
              'neg))
  
  (test/spec-passed
   'immutable19
   '(let ([ctc (contract (list/c (number? . -> . boolean?) (number? . -> . boolean?)) 
                         (list (lambda (x) #t) (lambda (x) #t)) 
                         'pos
                         'neg)])
      (for-each (lambda (x) (x 1)) ctc)))
  
  (test/pos-blame
   'vector-immutable1
   '(contract (vector-immutableof (boolean? . -> . boolean?)) 
              #f 
              'pos
              'neg))
  
  (test/pos-blame
   'vector-immutable2
   '(contract (vector-immutableof (boolean? . -> . boolean?)) 
              (vector (lambda (x) x)) 
              'pos
              'neg))
  
  (test/neg-blame
   'vector-immutable3
   '(let ([ct (contract (vector-immutableof (number? . -> . boolean?)) 
                        (vector->immutable-vector (vector (lambda (x) 1)))
                        'pos
                        'neg)])
      ((vector-ref ct 0) #f)))
  
  (test/pos-blame
   'vector-immutable4
   '(let ([ct (contract (vector-immutableof (number? . -> . boolean?)) 
                        (vector->immutable-vector (vector (lambda (x) 1)))
                        'pos
                        'neg)])
      ((vector-ref ct 0) 1)))
  
  (test/spec-passed
   'vector-immutable5
   '(let ([ct (contract (vector-immutableof (number? . -> . boolean?)) 
                        (vector->immutable-vector (vector (lambda (x) #t)))
                        'pos
                        'neg)])
      ((vector-ref ct 0) 1)))
  
  (test/pos-blame
   'vector-immutable6
   '(contract (vector-immutable/c (number? . -> . boolean?) (number? . -> . boolean?)) 
              #f
              'pos
              'neg))
  
  (test/pos-blame
   'vector-immutable7
   '(contract (vector-immutable/c (number? . -> . boolean?) (number? . -> . boolean?)) 
              (vector (lambda (x) #t) (lambda (x) #t)) 
              'pos
              'neg))
  
  (test/pos-blame
   'vector-immutable8
   '(contract (vector-immutable/c (number? . -> . boolean?) (number? . -> . boolean?)) 
              (vector->immutable-vector (vector (lambda (x) #t)))
              'pos
              'neg))
  
  (test/pos-blame
   'vector-immutable9
   '(contract (vector-immutable/c (number? . -> . boolean?) (number? . -> . boolean?)) 
              (vector->immutable-vector (vector (lambda (x) #t) (lambda (x) #t) (lambda (x) #t)))
              'pos
              'neg))
  
  (test/spec-passed
   'vector-immutable10
   '(let ([ctc (contract (vector-immutable/c (number? . -> . boolean?) (number? . -> . boolean?)) 
                         (vector->immutable-vector (vector (lambda (x) #t) (lambda (x) #t))) 
                         'pos
                         'neg)])
      ((vector-ref ctc 0) 1)
      ((vector-ref ctc 1) 1)))

  (test/spec-passed/result
   'vector-immutable11
   '(contract (vector-immutable/c number? boolean?) 
              (vector->immutable-vector (vector 1 #t))
              'pos
              'neg)
   (vector->immutable-vector (vector 1 #t)))
  
  (test/spec-passed/result
   'vector-immutable12
   '(immutable? (contract (vector-immutable/c number? boolean?) 
                          (vector->immutable-vector (vector 1 #t))
                          'pos
                          'neg))
   #t)

  (test/pos-blame
   'box-immutable1
   '(contract (box-immutable/c (number? . -> . boolean?)) 
              #f
              'pos
              'neg))
  
  (test/pos-blame
   'box-immutable2
   '(contract (box-immutable/c (number? . -> . boolean?)) 
              (box (lambda (x) #t)) 
              'pos
              'neg))
  
  (test/neg-blame
   'box-immutable3
   '(let ([ctc (contract (box-immutable/c (number? . -> . boolean?)) 
                         (box-immutable (lambda (x) #t))
                         'pos
                         'neg)])
      ((unbox ctc) #f)))
  
  (test/pos-blame
   'box-immutable4
   '(let ([ctc (contract (box-immutable/c (number? . -> . boolean?)) 
                         (box-immutable (lambda (x) 1))
                         'pos
                         'neg)])
      ((unbox ctc) 1)))
  
  (test/spec-passed
   'box-immutable5
   '(let ([ctc (contract (box-immutable/c (number? . -> . boolean?)) 
                         (box-immutable (lambda (x) #t))
                         'pos
                         'neg)])
      ((unbox ctc) 1)))

  (test/spec-passed/result
   'box-immutable6
   '(contract (box-immutable/c boolean?) 
              (box-immutable #t)
              'pos
              'neg)
   (box-immutable #t))
  
  (test/spec-passed/result
   'box-immutable7
   '(immutable? (contract (box-immutable/c boolean?) 
                          (box-immutable #t)
                          'pos
                          'neg))
   #t)

  
;                                                                          
;                                                                          
;                                                                          
;                                             ;;                 ;;        
;                                             ;;                 ;;        
;  ;;;;;;;   ;;; ;;;   ;;;;   ;;;;;;; ;;;;        ;;;;;   ;;;    ;;  ;;;;; 
;  ;;;;;;;;  ;;;;;;;  ;;;;;;  ;;;;;;;;;;;;; ;;;; ;;;;;;  ;;;;;   ;; ;;;;;; 
;  ;;;;;;;;; ;;;; ;; ;;;;;;;; ;;;; ;;; ;;;; ;;;; ;;;;   ;;;; ;;  ;;;;;;;;; 
;  ;;;; ;;;; ;;;;    ;;;; ;;; ;;;; ;;; ;;;; ;;;;  ;;;;  ;;;;;;; ;; ;;;;    
;  ;;;;;;;;; ;;;;    ;;;;;;;; ;;;; ;;; ;;;; ;;;;   ;;;; ;;;;;   ;; ;;;;;;; 
;  ;;;;;;;;  ;;;;     ;;;;;;  ;;;; ;;; ;;;; ;;;; ;;;;;;  ;;;;;; ;;  ;;;;;; 
;  ;;;;;;;   ;;;;      ;;;;   ;;;; ;;; ;;;; ;;;; ;;;;;    ;;;;  ;;   ;;;;; 
;  ;;;;                                                         ;;         
;  ;;;;                                                                    
;                                                                          

  
  (test/pos-blame
   'promise/c1
   '(force (contract (promise/c boolean?)
                     (delay 1)
                     'pos
                     'neg)))
  
  (test/spec-passed
   'promise/c2
   '(force (contract (promise/c boolean?)
                     (delay #t)
                     'pos
                     'neg)))
  
  (test/spec-passed/result
   'promise/c3
   '(let ([x 0])
      (contract (promise/c any/c)
                (delay (set! x (+ x 1)))
                'pos
                'neg)
      x)
   0)
  
  (test/spec-passed/result
   'promise/c4
   '(let ([x 0])
      (force (contract (promise/c any/c)
                       (delay (set! x (+ x 1)))
                       'pos
                       'neg))
      x)
   1)
  
  (test/spec-passed/result
   'promise/c5
   '(let ([x 0])
      (let ([p (contract (promise/c any/c)
                         (delay (set! x (+ x 1)))
                         'pos
                         'neg)])
        (force p)
        (force p))
      x)
   1)
  

  
;                                                                 
;                                                                 
;                                                                 
;                                ;                      ;;        
;                               ;;                      ;;        
;   ;;;;; ;;;  ;;; ;;;; ;;;   ;;;;; ;;;;;;;  ;;;; ;;;;  ;;  ;;;;; 
;  ;;;;;; ;;; ;;;; ;;;;;;;;; ;;;;;; ;;;;;;;;  ;;; ;;;   ;; ;;;;;; 
;  ;;;;    ;;;;;;  ;;;; ;;;;  ;;;;      ;;;;  ;;;;;;;   ;;;;;;;;; 
;   ;;;;   ;;;;;;  ;;;; ;;;;  ;;;;   ;;;;;;;   ;;;;;   ;; ;;;;    
;    ;;;;   ;;;;;  ;;;; ;;;;  ;;;;; ;;  ;;;;  ;;;;;;;  ;; ;;;;;;; 
;  ;;;;;;   ;;;;   ;;;; ;;;;  ;;;;; ;;;;;;;;  ;;; ;;;  ;;  ;;;;;; 
;  ;;;;;    ;;;;   ;;;; ;;;;   ;;;;  ;; ;;;; ;;;; ;;;; ;;   ;;;;; 
;          ;;;;                                        ;;         
;          ;;;;                                                   
;                                                                 

  
  (test/pos-blame 
   'syntax/c1
   '(contract (syntax/c boolean?)
              #'x
              'pos
              'neg))
  
  (test/spec-passed
   'syntax/c2
   '(contract (syntax/c symbol?)
              #'x
              'pos
              'neg))

  
;                                                            
;                                                            
;                                                            
;             ;                                ;   ;;        
;            ;;                               ;;   ;;        
;   ;;;;;  ;;;;; ;;; ;;; ;;;; ;;;;   ;;;;;  ;;;;;  ;;  ;;;;; 
;  ;;;;;; ;;;;;; ;;;;;;; ;;;; ;;;;  ;;;;;; ;;;;;;  ;; ;;;;;; 
;  ;;;;    ;;;;  ;;;; ;; ;;;; ;;;; ;;;;;;;  ;;;;   ;;;;;;;;; 
;   ;;;;   ;;;;  ;;;;    ;;;; ;;;; ;;;;     ;;;;  ;; ;;;;    
;    ;;;;  ;;;;; ;;;;    ;;;; ;;;; ;;;;;;;  ;;;;; ;; ;;;;;;; 
;  ;;;;;;  ;;;;; ;;;;    ;;;;;;;;;  ;;;;;;  ;;;;; ;;  ;;;;;; 
;  ;;;;;    ;;;; ;;;;     ;;; ;;;;   ;;;;;   ;;;; ;;   ;;;;; 
;                                                 ;;         
;                                                            
;                                                            

  
  (test/spec-passed
   'struct/c1
   '(let ()
      (define-struct s (a))
      (contract (struct/c s integer?)
                (make-s 1)
                'pos
                'neg)))
  
  (test/pos-blame
   'struct/c2
   '(let ()
      (define-struct s (a))
      (contract (struct/c s integer?)
                (make-s #f)
                'pos
                'neg)))
  
  (test/pos-blame
   'struct/c3
   '(let ()
      (define-struct s (a))
      (contract (struct/c s integer?)
                1
                'pos
                'neg)))
  
  (test/spec-passed
   'struct/c4
   '(let ()
      (define-struct s (a b))
      (contract (struct/c s integer? (struct/c s integer? boolean?))
                (make-s 1 (make-s 2 #t))
                'pos
                'neg)))
  
  (test/pos-blame
   'struct/c5
   '(let ()
      (define-struct s (a b))
      (contract (struct/c s integer? (struct/c s integer? boolean?))
                (make-s 1 (make-s 2 3))
                'pos
                'neg)))

  
;                                                                              
;                                                                              
;                                                                              
;                                                     ;;                       
;                                                     ;;                       
;  ;;; ;;;   ;;;     ;;;;; ;;;; ;;;; ;;; ;;;  ;;;;;      ;;;  ;;;   ;;;        
;  ;;;;;;;  ;;;;;   ;;;;;; ;;;; ;;;; ;;;;;;; ;;;;;; ;;;; ;;;  ;;;  ;;;;;       
;  ;;;; ;; ;;;; ;; ;;;;;;; ;;;; ;;;; ;;;; ;; ;;;;   ;;;;  ;;;;;;  ;;;; ;;      
;  ;;;;    ;;;;;;; ;;;;    ;;;; ;;;; ;;;;     ;;;;  ;;;;  ;;;;;;  ;;;;;;; ;;;;;
;  ;;;;    ;;;;;   ;;;;;;; ;;;; ;;;; ;;;;      ;;;; ;;;;  ;;;;;;  ;;;;;   ;;;;;
;  ;;;;     ;;;;;;  ;;;;;; ;;;;;;;;; ;;;;    ;;;;;; ;;;;   ;;;;    ;;;;;;      
;  ;;;;      ;;;;    ;;;;;  ;;; ;;;; ;;;;    ;;;;;  ;;;;   ;;;;     ;;;;       
;                                                                              
;                                                                              
;                                                                              
;                                                                    
;                                                                    
;                                                                    
;                                 ;                               ;  
;                                ;;                              ;;  
;    ;;;;;   ;;;;   ;;;; ;;;   ;;;;; ;;; ;;; ;;;;;;;    ;;;;;  ;;;;; 
;   ;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;; ;;;;;;; ;;;;;;;;  ;;;;;; ;;;;;; 
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;  ;;;; ;;     ;;;; ;;;;;;;  ;;;;  
;  ;;;;    ;;;; ;;; ;;;; ;;;;  ;;;;  ;;;;     ;;;;;;; ;;;;     ;;;;  
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;; ;;;;    ;;  ;;;; ;;;;;;;  ;;;;; 
;   ;;;;;;  ;;;;;;  ;;;; ;;;;  ;;;;; ;;;;    ;;;;;;;;  ;;;;;;  ;;;;; 
;    ;;;;;   ;;;;   ;;;; ;;;;   ;;;; ;;;;     ;; ;;;;   ;;;;;   ;;;; 
;                                                                    
;                                                                    
;                                                                    

  
  (test/spec-passed
   'recursive-contract1
   '(letrec ([ctc (-> integer? (recursive-contract ctc))])
      (letrec ([f (λ (x) f)])
        ((((contract ctc f 'pos 'neg) 1) 2) 3))))
  
  (test/neg-blame
   'recursive-contract2
   '(letrec ([ctc (-> integer? (recursive-contract ctc))])
      (letrec ([f (λ (x) f)])
        ((contract ctc f 'pos 'neg) #f))))
  
  (test/neg-blame
   'recursive-contract3
   '(letrec ([ctc (-> integer? (recursive-contract ctc))])
      (letrec ([f (λ (x) f)])
        ((((contract ctc f 'pos 'neg) 1) 2) #f))))
  
  (test/pos-blame
   'recursive-contract4
   '(letrec ([ctc (-> integer? (recursive-contract ctc))])
      (letrec ([c 0]
               [f (λ (x) 
                    (set! c (+ c 1))
                    (if (= c 2)
                        'nope
                        f))])
        ((((contract ctc f 'pos 'neg) 1) 2) 3))))
  
  (test/spec-passed
   'recursive-contract5
   '(contract (recursive-contract #f)
              #f
              'pos
              'neg))
  
  

;                                                       
;                                                       
;                                                       
;       ;;;;            ;;;   ;;                        
;       ;;;;           ;;;;   ;;                        
;    ;;;;;;;   ;;;    ;;;;;      ;;;; ;;;    ;;;        
;   ;;;;;;;;  ;;;;;   ;;;;  ;;;; ;;;;;;;;;  ;;;;;       
;  ;;;;;;;;; ;;;; ;; ;;;;;; ;;;; ;;;; ;;;; ;;;; ;;      
;  ;;;; ;;;; ;;;;;;; ;;;;;; ;;;; ;;;; ;;;; ;;;;;;; ;;;;;
;  ;;;;;;;;; ;;;;;    ;;;;  ;;;; ;;;; ;;;; ;;;;;   ;;;;;
;   ;;;;;;;;  ;;;;;;  ;;;;  ;;;; ;;;; ;;;;  ;;;;;;      
;    ;;;;;;;   ;;;;   ;;;;  ;;;; ;;;; ;;;;   ;;;;       
;                                                       
;                                                       
;                                                       
;                                                                         
;                                                                         
;                                                                         
;                                 ;                               ;       
;                                ;;                              ;;       
;    ;;;;;   ;;;;   ;;;; ;;;   ;;;;; ;;; ;;; ;;;;;;;    ;;;;;  ;;;;;      
;   ;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;; ;;;;;;; ;;;;;;;;  ;;;;;; ;;;;;;      
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;  ;;;; ;;     ;;;; ;;;;;;;  ;;;;       
;  ;;;;    ;;;; ;;; ;;;; ;;;;  ;;;;  ;;;;     ;;;;;;; ;;;;     ;;;;  ;;;;;
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;; ;;;;    ;;  ;;;; ;;;;;;;  ;;;;; ;;;;;
;   ;;;;;;  ;;;;;;  ;;;; ;;;;  ;;;;; ;;;;    ;;;;;;;;  ;;;;;;  ;;;;;      
;    ;;;;;   ;;;;   ;;;; ;;;;   ;;;; ;;;;     ;; ;;;;   ;;;;;   ;;;;      
;                                                                         
;                                                                         
;                                                                         
;                                                 
;                                                 
;                                                 
;             ;                                ;  
;            ;;                               ;;  
;   ;;;;;  ;;;;; ;;; ;;; ;;;; ;;;;   ;;;;;  ;;;;; 
;  ;;;;;; ;;;;;; ;;;;;;; ;;;; ;;;;  ;;;;;; ;;;;;; 
;  ;;;;    ;;;;  ;;;; ;; ;;;; ;;;; ;;;;;;;  ;;;;  
;   ;;;;   ;;;;  ;;;;    ;;;; ;;;; ;;;;     ;;;;  
;    ;;;;  ;;;;; ;;;;    ;;;; ;;;; ;;;;;;;  ;;;;; 
;  ;;;;;;  ;;;;; ;;;;    ;;;;;;;;;  ;;;;;;  ;;;;; 
;  ;;;;;    ;;;; ;;;;     ;;; ;;;;   ;;;;;   ;;;; 
;                                                 
;                                                 
;                                                 

  
  (contract-eval '(define-contract-struct couple (hd tl)))
  
  (test/spec-passed
   'd-c-s-match1
   '(begin
      (eval '(module d-c-s-match1 scheme/base
               (require scheme/contract
                        mzlib/match)
               
               (define-contract-struct foo (bar baz))
               
               (match (make-foo #t #f)
                 [($ foo bar baz) #t]
                 [_ #f])))
      (eval '(require 'd-c-s-match1))))
  
  (test/spec-passed/result
   'd-c-s-match2
   '(begin
      (eval '(module d-c-s-match2 scheme/base
               (require scheme/contract
                        mzlib/match)
               
               (define-contract-struct foo (bar baz))
               
               (provide d-c-s-match2-f1)
               (define d-c-s-match2-f1
                 (match (make-foo 'first 'second)
                   [($ foo bar baz) (list bar baz)]
                   [_ #f]))))
      (eval '(require 'd-c-s-match2))
      (eval 'd-c-s-match2-f1))
   '(first second))
  
  (test/spec-passed/result
   'd-c-s-match3
   '(begin
      (eval '(module d-c-s-match3-a scheme/base
               
               (require scheme/contract)
               
               (define-struct super (a b c) #:transparent)
               (define-struct (sub super) () #:transparent)
               
               (provide/contract
                [struct super       ([a number?] [b number?] [c number?])]
                [struct (sub super) ([a number?] [b number?] [c number?])])))
      (eval '(module d-c-s-match3-b scheme/base
               (require scheme/match)
               
               (require 'd-c-s-match3-a)
               
               (provide d-c-s-match3-ans)
               (define d-c-s-match3-ans
                 (match (make-sub 1 2 3)
                   [(struct sub (a b c))
                    (list a b c)]))))
      (eval '(require 'd-c-s-match3-b))
      (eval 'd-c-s-match3-ans))
   '(1 2 3))
  
  (test/pos-blame 'd-c-s1
                  '(begin
                     (eval '(module d-c-s1 scheme/base
                              (require scheme/contract)
                              (define-contract-struct couple (hd tl))
                              (contract (couple/c any/c any/c) 1 'pos 'neg)))
                     (eval '(require 'd-c-s1))))
  
  (test/spec-passed 'd-c-s2
                    '(contract (couple/c any/c any/c) (make-couple 1 2) 'pos 'neg))
  (test/spec-passed 'd-c-s3
                    '(contract (couple/c number? number?)
                               (make-couple 1 2)
                               'pos 'neg))
  (test/spec-passed 'd-c-s4
                    '(couple-hd 
                      (contract (couple/c number? number?)
                                (make-couple 1 2)
                                'pos 'neg)))
  (test/spec-passed 'd-c-s5
                    '(couple-tl
                      (contract (couple/c number? number?)
                                (make-couple 1 2)
                                'pos 'neg)))
  

  (test/pos-blame 
   'd-c-s6 
   '(couple-tl
     (contract (couple/c number?
                         number?)
               (make-couple #f 2)
               'pos 'neg)))
  (test/pos-blame
   'd-c-s7
   '(couple-hd
     (contract (couple/c number? number?)
               (make-couple #f 2)
               'pos 'neg)))
  
  (test/pos-blame 
   'd-c-s8
   '(contract (couple/dc [hd any/c] [tl any/c])
              1
              'pos 'neg))
  
  (test/pos-blame 
   'd-c-s9
   '(contract (couple/dc [hd () any/c] [tl () any/c])
              1
              'pos 'neg))

  
  (test/spec-passed 'd-c-s10
                    '(contract (couple/dc [hd any/c] [tl any/c])
                               (make-couple 1 2)
                               'pos 'neg))
  (test/spec-passed 'd-c-s11
                    '(contract (couple/dc [hd () any/c] [tl () any/c]) 
                               (make-couple 1 2)
                               'pos 'neg))
  
  (test/spec-passed 'd-c-s12
                    '(contract (couple/dc [hd number?]
                                          [tl number?])
                               (make-couple 1 2)
                               'pos 'neg))
  (test/spec-passed 'd-c-s13
                    '(couple-hd 
                      (contract (couple/dc [hd number?]
                                           [tl number?])
                                (make-couple 1 2)
                                'pos 'neg)))
  (test/spec-passed 'd-c-s14
                    '(couple-tl
                      (contract (couple/dc [hd number?]
                                           [tl number?])
                                (make-couple 1 2)
                                'pos 'neg)))
  
  
  (test/pos-blame 
   'd-c-s15
   '(couple-hd
     (contract (couple/dc [hd number?]
                          [tl number?])
               (make-couple #f 2)
               'pos 'neg)))
  
  (test/pos-blame
   'd-c-s16
   '(couple-tl
     (contract (couple/dc [hd number?]
                          [tl number?])
               (make-couple #f 2)
               'pos 'neg)))

  (test/spec-passed
   'd-c-s17
   '(couple-hd
     (contract (couple/dc [hd number?]
                          [tl (hd) (>=/c hd)])
               (make-couple 1 2)
               'pos 'neg)))

  (test/pos-blame
   'd-c-s18
   '(couple-hd
     (contract (couple/dc [hd number?]
                          [tl (hd) (>=/c hd)])
               (make-couple 2 1)
               'pos 'neg)))
  
  (test/spec-passed
   'd-c-s19
   '(couple-tl
     (couple-tl
      (contract (couple/dc [hd number?]
                           [tl (hd)
                               (let ([hd1 hd])
                                 (couple/dc [hd (>=/c hd1)]
                                            [tl (hd) (>=/c hd)]))])
                (make-couple 1 (make-couple 2 3))
                'pos 'neg))))
  
  (test/pos-blame
   'd-c-s20
   '(couple-tl
     (couple-tl
      (contract (couple/dc [hd number?]
                           [tl (hd)
                               (let ([hd1 hd])
                                 (couple/dc [hd (>=/c hd1)]
                                            [tl (hd) (>=/c hd1)]))])
                (make-couple 1 (make-couple 2 0))
                'pos 'neg))))
  
  (test/spec-passed
   'd-c-s21
   '(couple-hd
     (contract (couple/dc [hd number?]
                          [tl number?])
               (contract (couple/dc [hd number?]
                                    [tl number?])
                         (make-couple 1 2)
                         'pos 'neg)
               'pos 'neg)))
  
  (test/spec-passed
   'd-c-s22
   '(couple-hd
     (contract (couple/dc [hd (>=/c 0)]
                          [tl (>=/c 0)])
               (contract (couple/dc [hd number?]
                                    [tl number?])
                         (make-couple 1 2)
                         'pos 'neg)
               'pos 'neg)))
  
  (test/pos-blame
   'd-c-s23
   '(couple-hd
     (contract (couple/dc [hd (>=/c 0)]
                          [tl (>=/c 0)])
               (contract (couple/dc [hd number?]
                                    [tl number?])
                         (make-couple -1 2)
                         'pos 'neg)
               'pos 'neg)))
  
   (test/pos-blame
    'd-c-s24
    '(couple-hd
      (contract (couple/dc [hd number?]
                           [tl number?])
                (contract (couple/dc [hd (>=/c 0)]
                                     [tl (>=/c 0)])
                          (make-couple -1 2)
                          'pos 'neg)
                'pos 'neg)))
  
   (test/pos-blame
    'd-c-s25
    '(couple-hd
      (contract (couple/dc [hd number?]
                           [tl number?])
                (contract (couple/dc [hd number?]
                                     [tl number?])
                          (contract (couple/dc [hd (>=/c 0)]
                                               [tl (>=/c 0)])
                                    (make-couple -1 2)
                                    'pos 'neg)
                          'pos 'neg)
                'pos 'neg)))
  
   (test/pos-blame
    'd-c-s26
    '(couple-hd
      (contract (couple/dc [hd (>=/c 10)]
                           [tl (>=/c 10)])
                (contract (couple/dc [hd positive?]
                                     [tl positive?])
                          (contract (couple/dc [hd number?]
                                               [tl number?])
                                    (make-couple 1 2)
                                    'pos 'neg)
                          'pos 'neg)
                'pos 'neg)))
  

  ;; test caching
  (test/spec-passed 
   'd-c-s27
   '(let ([ctc (couple/c any/c any/c)])
      (couple-hd (contract ctc (contract ctc (make-couple 1 2) 'pos 'neg) 'pos 'neg))))

  ;; make sure lazy really is lazy
  (test/spec-passed
   'd-c-s28
   '(contract (couple/c number? number?)
              (make-couple #f #f)
              'pos 'neg))
  
  (test/spec-passed
   'd-c-s29
   '(couple-hd
     (contract (couple/c (couple/c number? number?)
                         (couple/c number? number?))
               (make-couple (make-couple #f #f)
                            (make-couple #f #f))
               'pos 'neg)))
  
  (test/spec-passed
   'd-c-s30
   '(couple-tl
     (contract (couple/c (couple/c number? number?)
                         (couple/c number? number?))
               (make-couple (make-couple #f #f)
                            (make-couple #f #f))
               'pos 'neg)))
  
  ;; make sure second accesses work
  (test/spec-passed/result
   'd-c-s31
   '(let ([v (contract (couple/c number? number?)
                       (make-couple 1 2)
                       'pos 'neg)])
      (list (couple-hd v) (couple-hd v)))
   (list 1 1))
  
  (test/pos-blame
   'd-c-s32
   '(let ([v (contract (couple/c number? boolean?)
                       (make-couple 1 2)
                       'pos 'neg)])
      (with-handlers ([void void]) (couple-hd v))
      (couple-hd v)))
  
  (test/pos-blame
   'd-c-s33
   '(let ([v (contract (couple/c number? number?)
                       (make-couple 1 2)
                       'pos 'neg)])
      (couple-hd v)
      (couple-hd v)
      (couple-hd
       (contract (couple/c boolean? boolean?)
                 v
                 'pos 'neg))))

  (contract-eval '(define-contract-struct single (a)))
  ;; a related test to the above:
  (test/spec-passed/result
   'd-c-s34
   '(let ([v (contract (single/c number?) (make-single 1) 'pos 'neg)])
      (single-a v)
      (let ([v3 (contract (single/c number?) v 'pos 'neg)])
        (single-a v3)))
   1)
  
  ;; make sure the caching doesn't break the semantics
  (test/pos-blame
   'd-c-s35
   '(let ([v (contract (couple/c any/c
                                 (couple/c any/c
                                           (couple/c any/c
                                                     number?)))
                       (make-couple 1
                                    (make-couple 2
                                                 (make-couple 3
                                                              #f)))
                       'pos 'neg)])
      (let* ([x (couple-tl v)]
             [y (couple-tl x)])
        (couple-hd (couple-tl x)))))
  
  (test/spec-passed/result
   'd-c-s36
   '(let ([x (make-couple 1 2)]
          [y (make-couple 1 2)]
          [c1 (couple/dc [hd any/c]
                         [tl (hd) any/c])]
          [c2 (couple/c any/c any/c)])
      (couple-hd (contract c1 x 'pos 'neg))
      (couple-hd (contract c2 x 'pos 'neg))
      (couple-hd (contract c2 y 'pos 'neg))
      (couple-hd (contract c1 y 'pos 'neg)))
   1)
  
  ;; make sure that define-contract-struct contracts can go at the top level
  (test/spec-passed
   'd-c-s37
   '(contract-stronger?
     (couple/dc [hd any/c]
                [tl (hd) any/c])
     (couple/dc [hd any/c]
                [tl (hd) any/c])))
  
  ;; test functions inside structs
  
  (test/spec-passed/result
   'd-c-s38
   '(let ([x (make-couple (lambda (x) x) (lambda (x) x))]
          [c (couple/dc [hd (-> integer? integer?)]
                        [tl (hd) any/c])])
      ((couple-hd (contract c x 'pos 'neg)) 1))
   1)
  
  (test/neg-blame
   'd-c-s39
   '(let ([x (make-couple (lambda (x) x) (lambda (x) x))]
          [c (couple/dc [hd (-> integer? integer?)]
                        [tl (hd) any/c])])
      ((couple-hd (contract c x 'pos 'neg)) #f)))
  
  (test/pos-blame
   'd-c-s40
   '(let ([x (make-couple (lambda (x) #f) (lambda (x) #f))]
          [c (couple/dc [hd (-> integer? integer?)]
                        [tl (hd) any/c])])
      ((couple-hd (contract c x 'pos 'neg)) 1)))
  
  (test/spec-passed/result
   'd-c-s41
   '(let ([x (make-couple 5 (lambda (x) x))]
          [c (couple/dc [hd number?]
                        [tl (hd) (-> (>=/c hd) (>=/c hd))])])
      ((couple-tl (contract c x 'pos 'neg)) 6))
   6)
  
  (test/pos-blame
   'd-c-s42
   '(let ([x (make-couple 5 (lambda (x) -10))]
          [c (couple/dc [hd number?]
                        [tl (hd) (-> (>=/c hd) (>=/c hd))])])
      ((couple-tl (contract c x 'pos 'neg)) 6)))
  
  (test/neg-blame
   'd-c-s42
   '(let ([x (make-couple 5 (lambda (x) -10))]
          [c (couple/dc [hd number?]
                        [tl (hd) (-> (>=/c hd) (>=/c hd))])])
      ((couple-tl (contract c x 'pos 'neg)) -11)))
  
  
;                                                                                            
;                                                                                            
;                                                                                            
;       ;;;;            ;;;   ;;                                               ;   ;;        
;       ;;;;           ;;;;   ;;                                              ;;   ;;        
;    ;;;;;;;   ;;;    ;;;;;      ;;;; ;;;    ;;;          ;;;;   ;;;;;;;    ;;;;;  ;;  ;;;;; 
;   ;;;;;;;;  ;;;;;   ;;;;  ;;;; ;;;;;;;;;  ;;;;;        ;;;;;;  ;;;;;;;;  ;;;;;;  ;; ;;;;;; 
;  ;;;;;;;;; ;;;; ;; ;;;;;; ;;;; ;;;; ;;;; ;;;; ;;      ;;;;;;;; ;;;;;;;;;  ;;;;   ;;;;;;;;; 
;  ;;;; ;;;; ;;;;;;; ;;;;;; ;;;; ;;;; ;;;; ;;;;;;; ;;;;;;;;; ;;; ;;;; ;;;;  ;;;;  ;; ;;;;    
;  ;;;;;;;;; ;;;;;    ;;;;  ;;;; ;;;; ;;;; ;;;;;   ;;;;;;;;;;;;; ;;;;;;;;;  ;;;;; ;; ;;;;;;; 
;   ;;;;;;;;  ;;;;;;  ;;;;  ;;;; ;;;; ;;;;  ;;;;;;       ;;;;;;  ;;;;;;;;   ;;;;; ;;  ;;;;;; 
;    ;;;;;;;   ;;;;   ;;;;  ;;;; ;;;; ;;;;   ;;;;         ;;;;   ;;;;;;;     ;;;; ;;   ;;;;; 
;                                                                ;;;;             ;;         
;                                                                ;;;;                        
;                                                                                            


  (contract-eval '(define-contract-struct node (val obj rank left right) (make-inspector)))
  (contract-eval '(define (compute-rank n)
                    (cond
                      [(not n) 0]
                      [else (node-rank n)])))
  
  (contract-eval '(define-opt/c (leftist-heap-greater-than/rank/opt n r)
                    (or/c not
                          (node/dc [val (>=/c n)]
                                   [obj any/c]
                                   [rank (<=/c r)]
                                   [left (val) (leftist-heap-greater-than/rank/opt val +inf.0)]
                                   [right (val left) (leftist-heap-greater-than/rank/opt val (compute-rank left))]))))
  
  (contract-eval '(define leftist-heap/c (leftist-heap-greater-than/rank/opt -inf.0 +inf.0)))
  
  (test/pos-blame 'd-o/c1 '(contract leftist-heap/c 2 'pos 'neg))
  
  
  (test/spec-passed 'd-o/c2 '(contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg))
  (test/spec-passed 'd-o/c3 '(contract leftist-heap/c #f 'pos 'neg))
  (test/spec-passed 'd-o/c4 '(contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg))
  (test/spec-passed/result 'd-o/c5
                           '(node? (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg))
                           #t)
  
  (test/spec-passed/result 'd-o/c6 '(node-val (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)) 1)
  (test/spec-passed/result 'd-o/c7 '(node-obj (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)) 2)
  (test/spec-passed/result 'd-o/c8 '(node-rank (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)) 3)
  (test/spec-passed/result 'd-o/c9 '(node-left (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)) #f)
  (test/spec-passed/result 'd-o/c10 '(node-right (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)) #f)
  
  (test/spec-passed/result 'd-o/c11
                           '(node-val (contract leftist-heap/c 
                                                (contract leftist-heap/c 
                                                          (make-node 1 2 3 #f #f)
                                                          'pos 'neg)
                                                'pos 'neg))
                           1)
  (test/spec-passed/result 'd-o/c12
                           '(node-obj (contract leftist-heap/c 
                                                (contract leftist-heap/c 
                                                          (make-node 1 2 3 #f #f)
                                                          'pos 'neg)
                                                'pos 'neg))
                           2)
  (test/spec-passed/result 'd-o/c13
                           '(node-rank (contract leftist-heap/c 
                                                 (contract leftist-heap/c 
                                                           (make-node 1 2 3 #f #f)
                                                           'pos 'neg)
                                                 'pos 'neg))
                           3)
  (test/spec-passed/result 'd-o/c14
                           '(node-left (contract leftist-heap/c 
                                                 (contract leftist-heap/c 
                                                           (make-node 1 2 3 #f #f)
                                                           'pos 'neg)
                                                 'pos 'neg)) 
                           #f)
  (test/spec-passed/result 'd-o/c15
                           '(node-right (contract leftist-heap/c 
                                                  (contract leftist-heap/c 
                                                            (make-node 1 2 3 #f #f)
                                                            'pos 'neg)
                                                  'pos 'neg))
                           #f)
  
  (test/spec-passed/result 'd-o/c16
                           '(let ([h (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)])
                              (node-val h)
                              (node-val h))
                           1)
  (test/spec-passed/result 'd-o/c17
                           '(let ([h (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)])
                              (node-obj h)
                              (node-obj h))
                           2)
  
  (test/spec-passed/result 'd-o/c18
                           '(let ([h (contract leftist-heap/c (make-node 1 2 3 #f #f)'pos 'neg)])
                              (node-rank h)
                              (node-rank h))
                           3)
  (test/spec-passed/result 'd-o/c19
                           '(let ([h (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)])
                              (node-left h)
                              (node-left h))
                           #f)
  (test/spec-passed/result 'd-o/c20
                           '(let ([h (contract leftist-heap/c (make-node 1 2 3 #f #f) 'pos 'neg)])
                              (node-right h)
                              (node-right h))
                           #f)
  
  (test/spec-passed/result 'd-o/c21
                           '(node-val
                             (node-right
                              (contract leftist-heap/c 
                                        (make-node 1 2 3 
                                                   (make-node 7 8 9 #f #f)
                                                   (make-node 4 5 6 #f #f))
                                        'pos 'neg)))
                           4)
  (test/spec-passed/result 'd-o/c22
                           '(node-val
                             (node-left
                              (contract leftist-heap/c 
                                        (make-node 1 2 3 
                                                   (make-node 7 8 9 #f #f)
                                                   (make-node 4 5 6 #f #f))
                                        'pos 'neg)))
                           7)
  
  (test/pos-blame 'd-o/c23
                  '(node-val
                    (node-right
                     (contract leftist-heap/c 
                               (make-node 5 2 3 
                                          (make-node 7 8 9 #f #f)
                                          (make-node 4 5 6 #f #f))
                               'pos 'neg))))
  
  (test/pos-blame 'd-o/c24
                  '(node-val
                    (node-left
                     (contract leftist-heap/c 
                               (make-node 9 2 3 
                                          (make-node 7 8 9 #f #f)
                                          (make-node 11 5 6 #f #f))
                               'pos 'neg))))
  
  (test/neg-blame 'd-o/c25
                  '((contract (-> leftist-heap/c any)
                              (λ (kh)
                                (node-val
                                 (node-left
                                  kh)))
                              'pos 'neg)
                    (make-node 9 2 3 
                               (make-node 7 8 9 #f #f)
                               (make-node 11 5 6 #f #f))))
  
  
  
  (test/spec-passed/result
   'd-o/c26 
   '(let ([ai (λ (x) (contract leftist-heap/c x 'pos 'neg))])
      (define (remove-min t) (merge (node-left t) (node-right t)))
      
      (define (merge t1 t2)
        (cond
          [(not t1) t2]
          [(not t2) t1]
          [else
           (let ([t1-val (node-val t1)]
                 [t2-val (node-val t2)])
             (cond
               [(<= t1-val t2-val)
                (pick t1-val 
                      (node-obj t1)
                      (node-left t1)
                      (merge (node-right t1)
                             t2))]
               [else
                (pick t2-val 
                      (node-obj t2)
                      (node-left t2)
                      (merge t1
                             (node-right t2)))]))]))
      
      (define (pick x obj a b)
        (let ([ra (compute-rank a)]
              [rb (compute-rank b)])
          (cond
            [(>= ra rb)
             (make-node x obj (+ rb 1) a b)]
            [else
             (make-node x obj (+ ra 1) b a)])))
      (node-val
       (remove-min (ai (make-node 137 'x 1 
                                  (ai (make-node 178 'y 1 
                                                 (make-node 178 'z 1 #f #f)
                                                 #f))
                                  #f)))))
   178)
  
  ;;
  ;;  end of define-opt/c
  ;;
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  ;;
  ;;  opt/c and blame
  ;;
  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

  (contract-eval
   '(begin

      (define proj:blame/c
        (make-proj-contract
         'proj:blame/c
         (lambda (pos neg src name blame)
           (lambda (x)
             (if blame 'positive 'negative)))
         (lambda (x) #t)))

      (define call*0 'dummy)
      (define (call*1 x0) x0)
      (define (call*2 f1 x0) (f1 x0))
      (define (call*3 f2 x1 x0) (f2 x1 x0))))

  (test/spec-passed/result
   'opt/c-blame-0
   '((contract
      (-> (-> (-> proj:blame/c any/c) any/c any/c) (-> any/c any/c) any/c any/c)
      call*3
      'pos
      'neg)
     call*2
     call*1
     call*0)
   'negative)

  (test/spec-passed/result
   'opt/c-blame-1
   '((contract
      (opt/c (-> (-> (-> proj:blame/c any/c) any/c any/c) (-> any/c any/c) any/c any/c))
      call*3
      'pos
      'neg)
     call*2
     call*1
     call*0)
   'negative)

  (test/spec-passed/result
   'opt/c-blame-2
   '((contract
      (-> (opt/c (-> (-> proj:blame/c any/c) any/c any/c)) (-> any/c any/c) any/c any/c)
      call*3
      'pos
      'neg)
     call*2
     call*1
     call*0)
   'negative)

  (test/spec-passed/result
   'opt/c-blame-3
   '((contract
      (-> (-> (opt/c (-> proj:blame/c any/c)) any/c any/c) (-> any/c any/c) any/c any/c)
      call*3
      'pos
      'neg)
     call*2
     call*1
     call*0)
   'negative)

  (test/spec-passed/result
   'opt/c-blame-4
   '((contract
      (-> (-> (-> (opt/c proj:blame/c) any/c) any/c any/c) (-> any/c any/c) any/c any/c)
      call*3
      'pos
      'neg)
     call*2
     call*1
     call*0)
   'negative)
  
  ;; NOT YET RELEASED
  #;
  (test/pos-blame
   'd-c-s/attr-1
   '(let ()
      (define-contract-struct pr (x y))
      (pr-x
       (contract (pr/dc [x integer?]
                        [y integer?]
                        where
                        [x-val x]
                        [y-val y]
                        and
                        (= x-val y-val))
                 (make-pr 4 5)
                 'pos
                 'neg))))
  
  ;; NOT YET RELEASED
  #;
  (test/spec-passed
   'd-c-s/attr-2
   '(let ()
      (define-contract-struct pr (x y))
      (contract (pr/dc [x integer?]
                       [y integer?]
                       where
                       [x-val x]
                       [y-val y]
                       and
                       (= x-val y-val))
                (make-pr 4 5)
                'pos
                'neg)))
  
  ;; NOT YET RELEASED
  #;
  (let ()
    (define-contract-struct node (n l r) (make-inspector))
    
    (define (get-val n attr)
      (if (null? n)
          1
          (let ([h (synthesized-value n attr)])
            (if (unknown? h)
                h
                (+ h 1)))))
    
    (define (full-bbt lo hi)
      (or/c null?
            (node/dc [n (between/c lo hi)]
                     [l (n) (full-bbt lo n)]
                     [r (n) (full-bbt n hi)]
                     
                     where
                     [lheight (get-val l lheight)]
                     [rheight (get-val r rheight)]
                     
                     and
                     (<= 0 (- lheight rheight) 1))))
    
    (define t (contract (full-bbt -inf.0 +inf.0)
                        (make-node 0
                                   (make-node -1 null null) 
                                   (make-node 2
                                              (make-node 1 null null) 
                                              (make-node 3 null null)))
                        'pos
                        'neg))
    (test/spec-passed
     'd-c-s/attr-3
     `(,node-l (,node-l ,t)))
     
    (test/pos-blame 
     'd-c-s/attr-4
     `(,node-r (,node-r (,node-r ,t)))))

  ;; NOT YET RELEASED
  #|

need a test that will revisit a node a second time (when it already has a wrapper)
with a new parent. make sure the new parent is recorded in the parents field
so that propagation occurs.

|#
  
  
  ;; test the predicate
  (ctest #t couple? (contract (couple/c any/c any/c) (make-couple 1 2) 'pos 'neg))
  (ctest #t couple? (make-couple 1 2))
  (ctest #t couple? (contract (couple/dc [hd any/c] [tl (hd) any/c]) (make-couple 1 2) 'pos 'neg))
  (ctest #f couple? 1)
  (ctest #f couple? #f)
  
  
;                                                                                                            
;                                                                                                            
;                                                                                                            
;     ;;; ;;;;              ;                                      ;                               ;    ;;;  
;    ;;;; ;;;;             ;;                                     ;;                              ;;   ;;;;; 
;   ;;;;; ;;;; ;;;;;;;   ;;;;;        ;;;;;   ;;;;   ;;;; ;;;   ;;;;; ;;; ;;; ;;;;;;;    ;;;;;  ;;;;; ;;;;;; 
;   ;;;;  ;;;; ;;;;;;;; ;;;;;;       ;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;; ;;;;;;; ;;;;;;;;  ;;;;;; ;;;;;;    ;;; 
;  ;;;;;; ;;;;     ;;;;  ;;;;       ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;  ;;;; ;;     ;;;; ;;;;;;;  ;;;;     ;;  
;  ;;;;;; ;;;;  ;;;;;;;  ;;;;  ;;;;;;;;;    ;;;; ;;; ;;;; ;;;;  ;;;;  ;;;;     ;;;;;;; ;;;;     ;;;;     ;   
;   ;;;;  ;;;; ;;  ;;;;  ;;;;; ;;;;;;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;; ;;;;    ;;  ;;;; ;;;;;;;  ;;;;;   ;;;  
;   ;;;;  ;;;; ;;;;;;;;  ;;;;;       ;;;;;;  ;;;;;;  ;;;; ;;;;  ;;;;; ;;;;    ;;;;;;;;  ;;;;;;  ;;;;;   ;;;  
;   ;;;;  ;;;;  ;; ;;;;   ;;;;        ;;;;;   ;;;;   ;;;; ;;;;   ;;;; ;;;;     ;; ;;;;   ;;;;;   ;;;;   ;;;  
;                                                                                                            
;                                                                                                            
;                                                                                                            

  
  
  (ctest #t flat-contract? (or/c))
  (ctest #t flat-contract? (or/c integer? (lambda (x) (> x 0))))
  (ctest #t flat-contract? (or/c (flat-contract integer?) (flat-contract boolean?)))
  (ctest #t flat-contract? (or/c integer? boolean?))
  (test-flat-contract '(or/c (flat-contract integer?) char?) #\a #t)
  (test-flat-contract '(or/c (flat-contract integer?) char?) 1 #t)
  
  (ctest #t flat-contract? (and/c))
  (ctest #t flat-contract? (and/c number? integer?))
  (ctest #t flat-contract? (and/c (flat-contract number?)
				 (flat-contract integer?)))
  (ctest #t flat-contract? (let ()
                            (define-struct s (a b))
                            (struct/c s any/c any/c)))
  
  (ctest #t flat-contract? (hash/c any/c any/c #:immutable #f))
  (ctest #f flat-contract? (hash/c any/c any/c #:immutable #t))
  (ctest #t flat-contract? (hash/c any/c any/c))
  
  (ctest #t contract? 1)
  (ctest #t contract? (-> 1 1))
  
  (test-flat-contract '(and/c number? integer?) 1 3/2)

  (test-flat-contract '(not/c integer?) #t 1)
  (test-flat-contract '(=/c 2) 2 3)
  (test-flat-contract '(>/c 5) 10 5)
  (test-flat-contract '(>=/c 5) 5 0)
  (test-flat-contract '(<=/c 5) 5 10)
  (test-flat-contract '(</c 5) 0 5)
  (test-flat-contract '(=/c 2) 2 0+1i)
  (test-flat-contract '(>/c 5) 10 0+1i)
  (test-flat-contract '(>=/c 5) 5 0+1i)
  (test-flat-contract '(<=/c 5) 5 0+1i)
  (test-flat-contract '(</c 5) 0 0+1i)
  (test-flat-contract '(integer-in 0 10) 0 11)
  (test-flat-contract '(integer-in 0 10) 10 3/2)
  (test-flat-contract '(integer-in 0 10) 1 1.0)
  (test-flat-contract '(real-in 1 10) 3/2 20)
  (test-flat-contract '(string-len/c 3) "ab" "abc")
  (test-flat-contract 'natural-number/c 5 -1)
  (test-flat-contract 'natural-number/c #e3 #i3.0)
  (test-flat-contract 'natural-number/c 0 -1)
  (test-flat-contract 'false/c #f #t)
  
  (test-flat-contract #t #t "x")
  (test-flat-contract #f #f "x")
  (test-flat-contract #\a #\a #\b)
  (test-flat-contract #\a #\a 'a)
  (test-flat-contract ''a 'a 'b)
  (test-flat-contract ''a 'a #\a)
  (test-flat-contract "x" "x" "y")
  (test-flat-contract "x" "x" 'x)
  (test-flat-contract 1 1 2)
  (test-flat-contract #e1 #i1.0 'x)
  (test-flat-contract #rx".x." "axq" "x")
  (test-flat-contract #rx#".x." #"axq" #"x")
  (test-flat-contract #rx".x." #"axq" #"x")
  (test-flat-contract #rx#".x." "axq" "x")
  (test-flat-contract ''() '() #f)
  
  (test/spec-passed 'any/c '(contract any/c 1 'pos 'neg))
  (test-flat-contract 'printable/c (vector (cons 1 (box #f))) (lambda (x) x))
  (let ()
    (define-struct s (a b) #:prefab)
    (test-flat-contract 'printable/c (make-s 1 2) (λ (x) x)))
  (test-flat-contract '(symbols 'a 'b 'c) 'a 'd)
  (test-flat-contract '(one-of/c (expt 2 65)) (expt 2 65) 12)
  (test-flat-contract '(one-of/c '#:x '#:z) '#:x '#:y)
  
  (let ([c% (contract-eval '(class object% (super-new)))])
    (test-flat-contract `(subclass?/c ,c%) c% (contract-eval `object%))
    (test-flat-contract `(subclass?/c ,c%) (contract-eval `(class ,c%)) (contract-eval `(class object%))))
  
  (let ([i<%> (contract-eval '(interface ()))])
    (test-flat-contract `(implementation?/c ,i<%>) 
                        (contract-eval `(class* object% (,i<%>) (super-new)))
                        (contract-eval 'object%))
    (test-flat-contract `(implementation?/c ,i<%>) 
                        (contract-eval `(class* object% (,i<%>) (super-new)))
                        #f))
  
  (let ([i<%> (contract-eval '(interface ()))]
        [c% (contract-eval '(class object% (super-new)))])
    (test-flat-contract `(is-a?/c ,i<%>) 
                        (contract-eval `(new (class* object% (,i<%>) (super-new))))
                        (contract-eval '(new object%)))
    (test-flat-contract `(is-a?/c ,c%)
                        (contract-eval `(new ,c%))
                        (contract-eval '(new object%))))
  
  (test-flat-contract '(listof boolean?) (list #t #f) (list #f 3 #t))
  (test-flat-contract '(listof any/c) (list #t #f) 3)
  
  (test-flat-contract '(vectorof boolean?) (vector #t #f) (vector #f 3 #t))
  (test-flat-contract '(vectorof any/c) (vector #t #f) 3)
  
  (test-flat-contract '(vector/c boolean? (flat-contract integer?)) (vector #t 1) (vector 1 #f))
  (test-flat-contract '(vector/c boolean? (flat-contract integer?)) (vector #t 1) #f)

  (test-flat-contract '(cons/c boolean? (flat-contract integer?)) (cons #t 1) (cons 1 #f))
  (test-flat-contract '(cons/c boolean? (flat-contract integer?)) (cons #t 1) #f)
  (test-flat-contract '(list/c boolean? (flat-contract integer?)) (list #t 1) (list 1 #f))
  (test-flat-contract '(list/c boolean? (flat-contract integer?)) (list #t 1) #f)

  (contract-eval '(define (a-predicate-that-wont-be-optimized x) (boolean? x)))
  (test-flat-contract '(cons/c a-predicate-that-wont-be-optimized (flat-contract integer?)) (cons #t 1) (cons 1 #f))
  (test-flat-contract '(cons/c a-predicate-that-wont-be-optimized (flat-contract integer?)) (cons #t 1) #f)
  (test-flat-contract '(list/c a-predicate-that-wont-be-optimized (flat-contract integer?)) (list #t 1) (list 1 #f))
  (test-flat-contract '(list/c a-predicate-that-wont-be-optimized (flat-contract integer?)) (list #t 1) #f)

  (test-flat-contract '(box/c boolean?) (box #f) (box 1))
  (test-flat-contract '(box/c (flat-contract boolean?)) (box #t) #f)
  
  (test-flat-contract '(flat-rec-contract sexp (cons/c sexp sexp) number?) '(1 2 . 3) '(1 . #f))
  (test-flat-contract '(flat-murec-contract ([even1 (or/c null? (cons/c number? even2))] 
                                             [even2 (cons/c number? even1)])
                                            even1)
                      '(1 2 3 4)
                      '(1 2 3))

  (test-flat-contract '(hash/c symbol? boolean?) (make-hash) 1)
  (test-flat-contract '(hash/c symbol? boolean?) 
                      (let ([ht (make-hash)])
                        (hash-set! ht 'x #t)
                        ht)
                      (let ([ht (make-hash)])
                        (hash-set! ht 'x 1)
                        ht))
  (test-flat-contract '(hash/c symbol? boolean?) 
                      (let ([ht (make-hash)])
                        (hash-set! ht 'x #t)
                        ht)
                      (let ([ht (make-hash)])
                        (hash-set! ht 'x 1)
                        ht))
  
  (test #t 'malformed-binder
        (with-handlers ((exn? exn:fail:syntax?)) 
          (contract-eval '(flat-murec-contract ([(x) y]) x))
          'no-err))
  (test #t 'missing-body 
        (with-handlers ((exn? exn:fail:syntax?)) 
          (contract-eval '(flat-murec-contract ([x y])))
          'no-err))
  
  ;; test flat-contract-predicate
  (test #t (flat-contract-predicate integer?) 1)
  (test #t (flat-contract-predicate #t) #t)


;                                                                                                               
;                                                                                                               
;                                                                                                               
;    ;;              ;;;                                      ;;;;                                              
;    ;;             ;;;;                                      ;;;;                                              
;       ;;;; ;;;   ;;;;;   ;;;   ;;; ;;; ;;; ;;;   ;;;     ;;;;;;;     ;;;; ;;;  ;;;;;;;  ;;;;;;; ;;;;    ;;;   
;  ;;;; ;;;;;;;;;  ;;;;   ;;;;;  ;;;;;;; ;;;;;;;  ;;;;;   ;;;;;;;;     ;;;;;;;;; ;;;;;;;; ;;;;;;;;;;;;;  ;;;;;  
;  ;;;; ;;;; ;;;; ;;;;;; ;;;; ;; ;;;; ;; ;;;; ;; ;;;; ;; ;;;;;;;;;     ;;;; ;;;;     ;;;; ;;;; ;;; ;;;; ;;;; ;; 
;  ;;;; ;;;; ;;;; ;;;;;; ;;;;;;; ;;;;    ;;;;    ;;;;;;; ;;;; ;;;;     ;;;; ;;;;  ;;;;;;; ;;;; ;;; ;;;; ;;;;;;; 
;  ;;;; ;;;; ;;;;  ;;;;  ;;;;;   ;;;;    ;;;;    ;;;;;   ;;;;;;;;;     ;;;; ;;;; ;;  ;;;; ;;;; ;;; ;;;; ;;;;;   
;  ;;;; ;;;; ;;;;  ;;;;   ;;;;;; ;;;;    ;;;;     ;;;;;;  ;;;;;;;;     ;;;; ;;;; ;;;;;;;; ;;;; ;;; ;;;;  ;;;;;; 
;  ;;;; ;;;; ;;;;  ;;;;    ;;;;  ;;;;    ;;;;      ;;;;    ;;;;;;;     ;;;; ;;;;  ;; ;;;; ;;;; ;;; ;;;;   ;;;;  
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;                                                                                                               

  (contract-eval 
   '(module contract-test-suite-inferred-name1 scheme/base
      (require scheme/contract)
      (define contract-inferred-name-test-contract (-> integer? any))
      (define (contract-inferred-name-test x) #t)
      (provide/contract (contract-inferred-name-test contract-inferred-name-test-contract))
      
      (define (contract-inferred-name-test2 x) x)
      (provide/contract (contract-inferred-name-test2 (-> number? number?)))
      
      (define (contract-inferred-name-test2b x) (values x x))
      (provide/contract (contract-inferred-name-test2b (-> number? (values number? number?))))
      
      (define (contract-inferred-name-test3 x . y) x)
      (provide/contract (contract-inferred-name-test3 (->* (number?) () #:rest (listof number?) number?)))
      
      (define (contract-inferred-name-test4) 7)
      (provide/contract (contract-inferred-name-test4 (->d () () any)))

      ))
  (contract-eval '(require 'contract-test-suite-inferred-name1))
  ;; (eval '(test 'contract-inferred-name-test object-name contract-inferred-name-test)) ;; this one can't be made to pass, sadly.
  (test 'contract-inferred-name-test2 object-name (contract-eval 'contract-inferred-name-test2))
  (test 'contract-inferred-name-test2b object-name (contract-eval 'contract-inferred-name-test2b))
  (test 'contract-inferred-name-test3 object-name (contract-eval 'contract-inferred-name-test3))
  (test 'contract-inferred-name-test4 object-name (contract-eval 'contract-inferred-name-test4))
  
  

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;    ;;;;;   ;;;;   ;;;; ;;;   ;;;;; ;;; ;;; ;;;;;;;    ;;;;;  ;;;;;      ;;;; ;;;  ;;;;;;;  ;;;;;;; ;;;;    ;;;   
;   ;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;; ;;;;;;; ;;;;;;;;  ;;;;;; ;;;;;;      ;;;;;;;;; ;;;;;;;; ;;;;;;;;;;;;;  ;;;;;  
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;  ;;;; ;;     ;;;; ;;;;;;;  ;;;;       ;;;; ;;;;     ;;;; ;;;; ;;; ;;;; ;;;; ;; 
;  ;;;;    ;;;; ;;; ;;;; ;;;;  ;;;;  ;;;;     ;;;;;;; ;;;;     ;;;;  ;;;;;;;;; ;;;;  ;;;;;;; ;;;; ;;; ;;;; ;;;;;;; 
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;; ;;;;    ;;  ;;;; ;;;;;;;  ;;;;; ;;;;;;;;; ;;;; ;;  ;;;; ;;;; ;;; ;;;; ;;;;;   
;   ;;;;;;  ;;;;;;  ;;;; ;;;;  ;;;;; ;;;;    ;;;;;;;;  ;;;;;;  ;;;;;      ;;;; ;;;; ;;;;;;;; ;;;; ;;; ;;;;  ;;;;;; 
;    ;;;;;   ;;;;   ;;;; ;;;;   ;;;; ;;;;     ;; ;;;;   ;;;;;   ;;;;      ;;;; ;;;;  ;; ;;;; ;;;; ;;; ;;;;   ;;;;  
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  (test-name 'integer? (flat-contract integer?))
  (test-name 'boolean? (flat-contract boolean?))
  (test-name 'char? (flat-contract char?))
  (test-name 'any/c any/c)
  
  (test-name '(-> integer? integer?) (-> integer? integer?))
  (test-name '(-> integer? any) (-> integer? any))
  (test-name '(-> integer? (values boolean? char?)) (-> integer? (values boolean? char?)))
  (test-name '(-> integer? boolean? (values char? any/c)) (->* (integer? boolean?) () (values char? any/c)))
  (test-name '(-> integer? boolean? any) (->* (integer? boolean?) () any))
  (test-name '(-> integer? boolean? #:x string? any) (-> integer? #:x string? boolean? any))
  
  (test-name '(->* (integer?) (string?) #:rest any/c (values char? any/c))
             (->* (integer?) (string?) #:rest any/c (values char? any/c)))
  (test-name '(->* (integer? char?) (boolean?) any) (->* (integer? char?) (boolean?) any))
  (test-name '(->* (integer? char? #:z string?) (integer?) any) (->* (#:z string? integer? char?) (integer?) any))
  (test-name '(->* (integer? char? #:z string?) (boolean? #:i number?) any) (->* (#:z string? integer? char?) (boolean? #:i number?) any))
  (test-name '(->* (integer? char? #:z string?) (boolean? #:i number?) #:rest (listof integer?) any) 
             (->* (#:z string? integer? char?) (boolean? #:i number?) #:rest (listof integer?) any))
  (test-name '(->* (integer? char? #:z string?) (boolean? #:i number?) (values number? boolean? symbol?)) 
             (->* (#:z string? integer? char?) (boolean? #:i number?) (values number? boolean? symbol?)))
  (test-name '(->* (integer? char? #:z string?) (boolean? #:i number?) #:rest (listof integer?) (values number? boolean? symbol?)) 
             (->* (#:z string? integer? char?) (boolean? #:i number?) #:rest (listof integer?) (values number? boolean? symbol?)))
  
  (test-name '(->d () () any) (->d () () any))
  (test-name '(->d ([x ...] #:y [y ...]) ([z ...] #:w [w ...]) any) (->d ([x integer?] #:y [y integer?]) ([z integer?] #:w [w integer?]) any))
  (test-name '(->d () () (values [x ...] [y ...])) (->d () () (values [x number?] [y number?])))
  (test-name '(->d () () [x ...]) (->d () () [q number?]))
  (test-name '(->d () () #:pre-cond ... [x ...]) (->d () () #:pre-cond #t [q number?]))
  (test-name '(->d () () #:pre-cond ... [x ...] #:post-cond ...) (->d () () #:pre-cond #t [q number?] #:post-cond #t))
  (test-name '(->d () () [x ...] #:post-cond ...) (->d () () [q number?] #:post-cond #t))
  
  (test-name '(case->) (case->))
  (test-name '(case-> (-> integer? any) (-> boolean? boolean? any) (-> char? char? char? any))
             (case-> (-> integer? any) (-> boolean? boolean? any) (-> char? char? char? any)))
  (test-name '(case-> (-> integer? integer?) (-> integer? integer? integer?))
             (case-> (-> integer? integer?) (-> integer? integer? integer?)))
  (test-name '(case-> (-> integer? #:rest any/c any)) (case-> (-> integer? #:rest any/c any)))
  (test-name '(case-> (-> integer? #:rest any/c (values boolean? char? number?))) 
             (case-> (-> integer? #:rest any/c (values boolean? char? number?))))
  (test-name '(case-> (-> integer? (values))) (case-> (-> integer? (values))))
  
  (test-name '(unconstrained-domain-> number?) (unconstrained-domain-> number?))
  
  (test-name '(or/c) (or/c))
  (test-name '(or/c integer? gt0?) (or/c integer? (let ([gt0? (lambda (x) (> x 0))]) gt0?)))
  (test-name '(or/c integer? boolean?)
             (or/c (flat-contract integer?)
                   (flat-contract boolean?)))
  (test-name '(or/c integer? boolean?)
             (or/c integer? boolean?))
  (test-name '(or/c (-> (>=/c 5) (>=/c 5)) boolean?)
             (or/c (-> (>=/c 5) (>=/c 5)) boolean?))
  (test-name '(or/c (-> (>=/c 5) (>=/c 5)) boolean?)
             (or/c boolean? (-> (>=/c 5) (>=/c 5))))
  (test-name '(or/c (-> (>=/c 5) (>=/c 5))
                    (-> (<=/c 5) (<=/c 5) (<=/c 5)))
             (or/c (-> (>=/c 5) (>=/c 5))
                   (-> (<=/c 5) (<=/c 5) (<=/c 5))))
  (test-name '(or/c boolean?
                    (-> (>=/c 5) (>=/c 5))
                    (-> (<=/c 5) (<=/c 5) (<=/c 5)))
             (or/c boolean?
                   (-> (>=/c 5) (>=/c 5))
                   (-> (<=/c 5) (<=/c 5) (<=/c 5))))
  
  (test-name 'any/c (and/c))
  (test-name '(and/c any/c) (and/c any/c))
  (test-name '(and/c any/c any/c) (and/c any/c any/c))
  (test-name '(and/c number? integer?) (and/c number? integer?))
  (test-name '(and/c number? integer?) (and/c (flat-contract number?)
                                              (flat-contract integer?)))
  (test-name '(and/c number? (-> integer? integer?)) (and/c number? (-> integer? integer?)))
  (test-name '(and/c (-> boolean? boolean?) (-> integer? integer?)) (and/c (-> boolean? boolean?) (-> integer? integer?)))

  (test-name '(not/c integer?) (not/c integer?))
  (test-name '(=/c 5) (=/c 5))
  (test-name '(>=/c 5) (>=/c 5))
  (test-name '(<=/c 5) (<=/c 5))
  (test-name '(</c 5) (</c 5))
  (test-name '(>/c 5) (>/c 5))
  (test-name '(between/c 5 6) (between/c 5 6))
  (test-name '(integer-in 0 10) (integer-in 0 10))
  (test-name '(real-in 1 10) (real-in 1 10))
  (test-name '(string-len/c 3) (string-len/c 3))
  (test-name 'natural-number/c natural-number/c)
  (test-name #f false/c)
  (test-name #t #t)
  (test-name #\a #\a)
  (test-name "x" "x")
  (test-name ''x 'x)
  ;(test-name #rx"x" #rx"x")  ;; commented out because regexps don't compare via equal?
  ;(test-name #rx#"x" #rx#"x") ;; commented out because regexps don't compare via equal?
  (test-name 'printable/c printable/c)
  (test-name '(symbols 'a 'b 'c) (symbols 'a 'b 'c))
  (test-name '(one-of/c 1 2 3) (one-of/c 1 2 3))
  (test-name '(one-of/c '() 'x 1 #f #\a (void) (letrec ([x x]) x)) 
             (one-of/c '() 'x 1 #f #\a (void) (letrec ([x x]) x)))
  
  (test-name '(or/c #f #t #\a "x") (or/c #f #t #\a "x"))
  ;(test-name '(or/c #f #t #\a "x" #rx"x" #rx#"x") (or/c #f #t #\a "x" #rx"x" #rx#"x")) ;; commented out because regexps don't compare via equal?

  (test-name '(subclass?/c class:c%) 
             (let ([c% (class object% (super-new))]) (subclass?/c c%)))
  
  (test-name '(implementation?/c interface:i<%>) 
             (let ([i<%> (interface ())])
               (implementation?/c i<%>)))
  
  (test-name '(is-a?/c interface:i<%>)
             (let ([i<%> (interface ())])
               (is-a?/c i<%>)))
  (test-name '(is-a?/c class:c%) 
             (let ([i<%> (interface ())]
                   [c% (class object% (super-new))])
               (is-a?/c c%)))
  
  (test-name '(listof boolean?) (listof boolean?))  
  (test-name '(listof any/c) (listof any/c))
  (test-name '(listof boolean?) (listof boolean?))
  (test-name '(listof any/c) (listof any/c))
  (test-name '(listof boolean?) (listof boolean?))
  (test-name '(listof (-> boolean? boolean?)) (listof (-> boolean? boolean?)))
  
  (test-name '(non-empty-listof boolean?) (non-empty-listof boolean?))  
  (test-name '(non-empty-listof any/c) (non-empty-listof any/c))
  (test-name '(non-empty-listof boolean?) (non-empty-listof boolean?))
  (test-name '(non-empty-listof any/c) (non-empty-listof any/c))
  (test-name '(non-empty-listof boolean?) (non-empty-listof boolean?))
  (test-name '(non-empty-listof (-> boolean? boolean?)) (non-empty-listof (-> boolean? boolean?)))

  
  (test-name '(vectorof boolean?) (vectorof boolean?))
  (test-name '(vectorof any/c) (vectorof any/c))
  
  (test-name '(vector/c boolean? integer?) (vector/c boolean? integer?))
  (test-name '(vector/c boolean? integer?) (vector/c boolean? (flat-contract integer?)))

  (test-name '(cons/c boolean? integer?) (cons/c boolean? (flat-contract integer?)))
  (test-name '(cons/c boolean? integer?) (cons/c boolean? (flat-contract integer?)))
  (test-name '(cons/c boolean? (cons/c integer? null?)) (list/c boolean? (flat-contract integer?)))
  (test-name '(cons/c boolean? (cons/c integer? null?)) (list/c boolean? (flat-contract integer?)))

  (test-name '(cons/c boolean? integer?) (cons/c boolean? (flat-contract integer?)))
  (test-name '(cons/c boolean? integer?) (cons/c boolean? (flat-contract integer?)))
  (test-name '(cons/c boolean? integer?) (cons/c boolean? (flat-contract integer?)))
  (test-name '(cons/c (-> boolean? boolean?) integer?) (cons/c (-> boolean? boolean?) integer?))
  
  (test-name '(cons/c boolean? (cons/c integer? null?))
             (list/c boolean? (flat-contract integer?)))
  (test-name '(cons/c boolean? (cons/c integer? null?)) 
             (list/c boolean? (flat-contract integer?)))
  (test-name '(cons/c boolean? (cons/c integer? null?))
             (list/c boolean? (flat-contract integer?)))
  (test-name '(cons/c (-> boolean? boolean?) (cons/c integer? null?))
             (list/c (-> boolean? boolean?) integer?))
  
  (test-name '(parameter/c integer?) (parameter/c integer?))
  
  (test-name '(hash/c symbol? boolean?) (hash/c symbol? boolean?))
  (test-name '(hash/c symbol? boolean? #:immutable #t) (hash/c symbol? boolean? #:immutable #t))
  (test-name '(hash/c symbol? boolean? #:immutable #f) (hash/c symbol? boolean? #:immutable #f))
  (test-name '(hash/c symbol? boolean?) (hash/c symbol? boolean? #:immutable 'dont-care))

  (test-name '(box/c boolean?) (box/c boolean?))
  (test-name '(box/c boolean?) (box/c (flat-contract boolean?)))
  (test-name 'the-name (flat-rec-contract the-name))

  (test-name '(object-contract) (object-contract))
  (test-name '(object-contract (field x integer?)) (object-contract (field x integer?)))
  (test-name '(object-contract (m (-> integer? integer?)))
             (object-contract (m (-> integer? integer?))))
  (test-name '(object-contract (m (-> integer? any)))
             (object-contract (m (-> integer? any))))
  (test-name '(object-contract (m (-> integer? (values integer? integer?)))) 
             (object-contract (m (-> integer? (values integer? integer?)))))
  (test-name '(object-contract (m (case-> (-> integer? integer? integer?)
                                          (-> integer? (values integer? integer?)))))
             (object-contract (m (case-> 
                                  (-> integer? integer? integer?)
                                  (-> integer? (values integer? integer?))))))
  (test-name
   '(object-contract (m (->* (integer?) (boolean? number?) symbol?)))
   (object-contract (m (->* (integer?) (boolean? number?) symbol?))))
  
  (test-name '(object-contract (m (->d ((x ...)) () (y ...)))) (object-contract (m (->d ((x number?)) () [result number?]))))
  (test-name '(object-contract (m (->d ((x ...) (y ...) (z ...)) () [w ...])))
             (object-contract (m (->d ((x number?) (y boolean?) (z pair?)) () [result number?]))))
  (test-name '(object-contract (m (->d ((x ...) (y ...) (z ...)) () #:rest w ... [x0 ...])))
             (object-contract (m (->d ((x number?) (y boolean?) (z pair?)) () #:rest rest-x any/c [result number?]))))

  (test-name '(promise/c any/c) (promise/c any/c))
  (test-name '(syntax/c any/c) (syntax/c any/c))
  (test-name '(struct/c st integer?) 
             (let ()
               (define-struct st (a))
               (struct/c st integer?)))
  
  (test-name '(recursive-contract (box/c boolean?)) (recursive-contract (box/c boolean?)))
  (test-name '(recursive-contract x) (let ([x (box/c boolean?)]) (recursive-contract x)))
  
  (test-name '(couple/c any/c any/c) 
             (couple/c any/c any/c))
  (test-name '(couple/c any/c any/c) 
             (couple/dc [hd any/c] [tl any/c]))
  (test-name '(couple/dc [hd any/c] [tl ...])
             (couple/dc [hd any/c] [tl (hd) any/c]))

  ;; NOT YET RELEASED
  #;
  (test-name '(pr/dc [x integer?]
                     [y integer?]
                     where
                     [x-val ...]
                     [y-val ...]
                     and
                     ...)
             (let ()
               (define-contract-struct pr (x y))
               (pr/dc [x integer?]
                      [y integer?]
                      where
                      [x-val x]
                      [y-val y]
                      and
                      (= x-val y-val))))
             

;                                                                    
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;             ;                                                      
;            ;;                                                      
;   ;;;;;  ;;;;; ;;; ;;;   ;;;;   ;;;; ;;;   ;;;;;;;   ;;;   ;;; ;;; 
;  ;;;;;; ;;;;;; ;;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;;;;  ;;;;;  ;;;;;;; 
;  ;;;;    ;;;;  ;;;; ;; ;;;;;;;; ;;;; ;;;; ;;; ;;;; ;;;; ;; ;;;; ;; 
;   ;;;;   ;;;;  ;;;;    ;;;; ;;; ;;;; ;;;; ;;;;;;;; ;;;;;;; ;;;;    
;    ;;;;  ;;;;; ;;;;    ;;;;;;;; ;;;; ;;;;  ;;;;;;; ;;;;;   ;;;;    
;  ;;;;;;  ;;;;; ;;;;     ;;;;;;  ;;;; ;;;; ;   ;;;;  ;;;;;; ;;;;    
;  ;;;;;    ;;;; ;;;;      ;;;;   ;;;; ;;;; ;;;;;;;;   ;;;;  ;;;;    
;                                           ;;;;;;;;                 
;                                            ;;;;;;                  
;                                                                    
  
  (ctest #t contract-stronger? any/c any/c)
  (ctest #t contract-stronger? (between/c 1 3) (between/c 0 4))
  (ctest #f contract-stronger? (between/c 0 4) (between/c 1 3))
  (ctest #t contract-stronger? (>=/c 3) (>=/c 2))
  (ctest #f contract-stronger? (>=/c 2) (>=/c 3))
  (ctest #f contract-stronger? (<=/c 3) (<=/c 2))
  (ctest #t contract-stronger? (<=/c 2) (<=/c 3))
  (ctest #f contract-stronger? (recursive-contract (<=/c 2)) (recursive-contract (<=/c 3)))
  (ctest #f contract-stronger? (recursive-contract (<=/c 3)) (recursive-contract (<=/c 2)))
  (let ([f (contract-eval '(λ (x) (recursive-contract (<=/c x))))])
    (test #t (contract-eval 'contract-stronger?) (contract-eval `(,f 1)) (contract-eval `(,f 1))))
  (ctest #t contract-stronger? (-> integer? integer?) (-> integer? integer?))
  (ctest #f contract-stronger? (-> boolean? boolean?) (-> integer? integer?))
  (ctest #t contract-stronger? (-> (>=/c 3) (>=/c 3)) (-> (>=/c 4) (>=/c 3)))
  (ctest #f contract-stronger? (-> (>=/c 4) (>=/c 3)) (-> (>=/c 3) (>=/c 3)))
  (ctest #t contract-stronger? (-> (>=/c 3) (>=/c 3)) (-> (>=/c 3) (>=/c 2)))
  (ctest #f contract-stronger? (-> (>=/c 3) (>=/c 2)) (-> (>=/c 3) (>=/c 3)))
  (ctest #f contract-stronger? (-> (>=/c 2)) (-> (>=/c 3) (>=/c 3)))
  (ctest #f contract-stronger? (-> integer? #:x integer? integer?) (-> integer? #:y integer? integer?))
  (ctest #f contract-stronger? (-> integer? #:y integer? integer?) (-> integer? #:x integer? integer?))
  (ctest #t contract-stronger? (-> integer? #:x integer? integer?) (-> integer? #:x integer? integer?))
  (ctest #t contract-stronger? (-> #:x (>=/c 3) (>=/c 3)) (-> #:x (>=/c 3) (>=/c 2)))
  
  (let ([c (contract-eval '(->* () () any))])
    (test #t (contract-eval 'contract-stronger?) c c))
  (let ([c (contract-eval '(->d () () any))])
    (test #t (contract-eval 'contract-stronger?) c c))

  (ctest #t contract-stronger? (or/c null? any/c) (or/c null? any/c))
  (ctest #f contract-stronger? (or/c null? any/c) (or/c boolean? any/c))
  (ctest #t contract-stronger? (or/c null? boolean?) (or/c null? boolean?))
  (ctest #f contract-stronger? (or/c null? boolean?) (or/c boolean? null?))
  (ctest #t contract-stronger? (or/c null? (-> integer? integer?)) (or/c null? (-> integer? integer?)))
  (ctest #f contract-stronger? (or/c null? (-> boolean? boolean?)) (or/c null? (-> integer? integer?)))
  
  (ctest #t contract-stronger? number? number?)
  (ctest #f contract-stronger? boolean? number?)
    
  (ctest #t contract-stronger? (parameter/c (between/c 0 5)) (parameter/c (between/c 0 5)))
  (ctest #f contract-stronger? (parameter/c (between/c 0 5)) (parameter/c (between/c 1 4)))
  (ctest #f contract-stronger? (parameter/c (between/c 1 4)) (parameter/c (between/c 0 5)))
  
  (ctest #t contract-stronger? (symbols 'x 'y) (symbols 'x 'y 'z))
  (ctest #f contract-stronger? (symbols 'x 'y 'z) (symbols 'x 'y))
  (ctest #t contract-stronger? (symbols 'x 'y) (symbols 'z 'x 'y))
  (ctest #f contract-stronger? (symbols 'z 'x 'y) (symbols 'x 'y))
  (ctest #t contract-stronger? (one-of/c (expt 2 100)) (one-of/c (expt 2 100) 12))
  
  (ctest #t contract-stronger?
        (or/c (-> (>=/c 3) (>=/c 3)) (-> string?))
        (or/c (-> (>=/c 4) (>=/c 3)) (-> string?)))
  (ctest #f contract-stronger?
        (or/c (-> string?) (-> integer? integer?))
        (or/c (-> string?) (-> any/c integer?)))
  (ctest #f contract-stronger?
        (or/c (-> string?) (-> any/c integer?))
        (or/c (-> string?) (-> integer? integer?)))
  (ctest #t contract-stronger?
        (or/c (-> string?) (-> integer? integer?) integer? boolean?)
        (or/c (-> string?) (-> integer? integer?) integer? boolean?))
  (ctest #f contract-stronger?
        (or/c (-> string?) (-> integer? integer?) integer? char?)
        (or/c (-> string?) (-> integer? integer?) integer? boolean?))
  (ctest #f contract-stronger?
        (or/c (-> string?) (-> integer? integer?) integer?)
        (or/c (-> string?) (-> integer? integer?) integer? boolean?))
  (ctest #f contract-stronger?
        (or/c (-> string?) (-> integer? integer?) integer?)
        (or/c (-> integer? integer?) integer?))

  (contract-eval
   `(let ()
      (define (non-zero? x) (not (zero? x)))
      (define list-of-numbers
        (or/c null?
              (couple/c number?
                        (recursive-contract list-of-numbers))))
      (define (short-list/less-than n)
        (or/c null?
              (couple/c (<=/c n)
                        (or/c null?
                              (couple/c (<=/c n)
                                        any/c)))))
      (define (short-sorted-list/less-than n)
        (or/c null?
              (couple/dc 
               [hd (<=/c n)]
               [tl (hd) (or/c null?
                              (couple/c (<=/c hd)
                                        any/c))])))
      
      (define (sorted-list/less-than n)
        (or/c null?
              (couple/dc 
               [hd (<=/c n)]
               [tl (hd) (sorted-list/less-than hd)])))
      
      ;; for some reason, the `n' makes it harder to optimize. without it, this test isn't as good a test
      (define (closure-comparison-test n)
        (couple/dc 
         [hd any/c]
         [tl (hd) any/c]))
      
      (,test #t contract-stronger? (couple/c any/c any/c) (couple/c any/c any/c))
      (,test #f contract-stronger? (couple/c (>=/c 2) (>=/c 3)) (couple/c (>=/c 4) (>=/c 5)))
      (,test #t contract-stronger? (couple/c (>=/c 4) (>=/c 5)) (couple/c (>=/c 2) (>=/c 3)))
      (,test #f contract-stronger? (couple/c (>=/c 1) (>=/c 5)) (couple/c (>=/c 5) (>=/c 1)))
      (let ([ctc (couple/dc [hd any/c] [tl (hd) any/c])])
        (,test #t contract-stronger? ctc ctc))
      (let ([ctc (couple/dc [hd any/c] [tl (hd) (<=/c hd)])])
        (,test #t contract-stronger? ctc ctc))
      (,test #t contract-stronger? list-of-numbers list-of-numbers)
      (,test #t contract-stronger? (short-list/less-than 4) (short-list/less-than 5))
      (,test #f contract-stronger? (short-list/less-than 5) (short-list/less-than 4))
      (,test #t contract-stronger? (short-sorted-list/less-than 4) (short-sorted-list/less-than 5))
      (,test #f contract-stronger? (short-sorted-list/less-than 5) (short-sorted-list/less-than 4))
      (,test #t contract-stronger? (sorted-list/less-than 4) (sorted-list/less-than 5))
      (,test #f contract-stronger? (sorted-list/less-than 5) (sorted-list/less-than 4))
      (,test #t contract-stronger? (closure-comparison-test 4) (closure-comparison-test 5))))

  

;                                                                                    
;                                                                                    
;                                                                                    
;     ;;;   ;;                    ;                             ;;;;                 
;    ;;;;   ;;                   ;;                             ;;;;                 
;   ;;;;;      ;;; ;;;  ;;;;;  ;;;;;        ;;;;   ;;; ;;;   ;;;;;;;   ;;;   ;;; ;;; 
;   ;;;;  ;;;; ;;;;;;; ;;;;;; ;;;;;;       ;;;;;;  ;;;;;;;  ;;;;;;;;  ;;;;;  ;;;;;;; 
;  ;;;;;; ;;;; ;;;; ;; ;;;;    ;;;;       ;;;;;;;; ;;;; ;; ;;;;;;;;; ;;;; ;; ;;;; ;; 
;  ;;;;;; ;;;; ;;;;     ;;;;   ;;;;  ;;;;;;;;; ;;; ;;;;    ;;;; ;;;; ;;;;;;; ;;;;    
;   ;;;;  ;;;; ;;;;      ;;;;  ;;;;; ;;;;;;;;;;;;; ;;;;    ;;;;;;;;; ;;;;;   ;;;;    
;   ;;;;  ;;;; ;;;;    ;;;;;;  ;;;;;       ;;;;;;  ;;;;     ;;;;;;;;  ;;;;;; ;;;;    
;   ;;;;  ;;;; ;;;;    ;;;;;    ;;;;        ;;;;   ;;;;      ;;;;;;;   ;;;;  ;;;;    
;                                                                                    
;                                                                                    
;                                                                                    
  
  (ctest #t contract-first-order-passes? (flat-contract integer?) 1)
  (ctest #f contract-first-order-passes? (flat-contract integer?) 'x)
  (ctest #t contract-first-order-passes? (flat-contract boolean?) #t)
  (ctest #f contract-first-order-passes? (flat-contract boolean?) 'x)
  (ctest #t contract-first-order-passes? any/c 1)
  (ctest #t contract-first-order-passes? any/c #t)
  (ctest #t contract-first-order-passes? (-> integer? integer?) (λ (x) #t))
  (ctest #f contract-first-order-passes? (-> integer? integer?) (λ (x y) #t))
  (ctest #f contract-first-order-passes? (-> integer? integer?) 'x)
  (ctest #t contract-first-order-passes? (-> integer? boolean? integer?) (λ (x y) #t))
  (ctest #f contract-first-order-passes? (-> integer? boolean? integer?) (λ (x) #t))
  (ctest #f contract-first-order-passes? (-> integer? boolean? integer?) (λ (x y z) #t))
  (ctest #f contract-first-order-passes? (-> integer? boolean? #:x integer? integer?) (λ (x y) #t))
  (ctest #t contract-first-order-passes? (-> integer? boolean? #:x integer? integer?) (λ (x y #:x z) #t))
  
  (ctest #t contract-first-order-passes? (->* (integer?) () #:rest any/c (values char? any/c)) (λ (x . y) #f))
  (ctest #f contract-first-order-passes? (->* (integer?) () #:rest any/c (values char? any/c)) (λ (x y . z) #f))
  (ctest #f contract-first-order-passes? (->* (integer?) () #:rest any/c (values char? any/c)) (λ (x) #f))
  (ctest #t contract-first-order-passes? (->* (integer?) () #:rest any/c (values char? any/c)) (λ x #f))

  (ctest #t contract-first-order-passes? (listof integer?) (list 1))
  (ctest #f contract-first-order-passes? (listof integer?) #f)

  (ctest #t contract-first-order-passes? (non-empty-listof integer?) (list 1))
  (ctest #f contract-first-order-passes? (non-empty-listof integer?) (list))

  
  (ctest #t contract-first-order-passes? (vector-immutableof integer?) (vector->immutable-vector (vector 1)))
  (ctest #f contract-first-order-passes? (vector-immutableof integer?) 'x)
  (ctest #f contract-first-order-passes? (vector-immutableof integer?) '())
  
  (ctest #t contract-first-order-passes? (promise/c integer?) (delay 1))
  (ctest #f contract-first-order-passes? (promise/c integer?) 1)

  (ctest #t contract-first-order-passes? (and/c (-> positive? positive?) (-> integer? integer?)) (λ (x) x))
  (ctest #t contract-first-order-passes? (and/c (-> positive? positive?) (-> integer? integer?)) values)
  (ctest #f contract-first-order-passes? (and/c (-> integer?) (-> integer? integer?)) (λ (x) x))
  
  (ctest #t contract-first-order-passes? 
        (cons/c boolean? (-> integer? integer?))
        (list* #t (λ (x) x)))
  (ctest #t contract-first-order-passes? 
        (cons/c boolean? (-> integer? integer?))
        (list* 1 2))
  
  (ctest #f contract-first-order-passes? (flat-rec-contract the-name) 1)
  
  (ctest #t contract-first-order-passes?
         (couple/c any/c any/c) 
         (make-couple 1 2))
  
  (ctest #f contract-first-order-passes?
         (couple/c any/c any/c) 
         2)
  
  (ctest #t contract-first-order-passes?
         (couple/dc [hd any/c] [tl any/c]) 
         (make-couple 1 2))
  
  (ctest #f contract-first-order-passes?
         (couple/dc [hd any/c] [tl any/c]) 
         1)
  
  (ctest #t contract-first-order-passes?
         (couple/dc [hd any/c] [tl (hd) any/c]) 
         (make-couple 1 2))
  
  (ctest #f contract-first-order-passes?
         (couple/dc [hd any/c] [tl (hd) any/c]) 
         1)

  (ctest #t contract-first-order-passes? (or/c (-> (>=/c 5) (>=/c 5)) boolean?) #t)
  (ctest #t contract-first-order-passes? (or/c (-> (>=/c 5) (>=/c 5)) boolean?) (λ (x) x))
  (ctest #f contract-first-order-passes? (or/c (-> (>=/c 5) (>=/c 5)) boolean?) 'x)

  (ctest #t contract-first-order-passes? 
        (or/c (-> integer? integer? integer?)
              (-> integer? integer?))
        (λ (x) x))
  (ctest #t contract-first-order-passes? 
        (or/c (-> integer? integer? integer?)
              (-> integer? integer?))
        (λ (x y) x))
  (ctest #f contract-first-order-passes? 
        (or/c (-> integer? integer? integer?)
              (-> integer? integer?))
        (λ () x))
  (ctest #f contract-first-order-passes? 
        (or/c (-> integer? integer? integer?)
              (-> integer? integer?))
        1)
  
  (ctest #t contract-first-order-passes? (hash/c any/c any/c) (make-hash))
  (ctest #f contract-first-order-passes? (hash/c any/c any/c) #f)
  (ctest #f contract-first-order-passes? (hash/c symbol? boolean?) (let ([ht (make-hash)])
                                                                     (hash-set! ht 'x 1)
                                                                     ht))
  (ctest #f contract-first-order-passes? (hash/c symbol? boolean?) (let ([ht (make-hash)])
                                                                     (hash-set! ht 1 #f)
                                                                     ht))
  (ctest #t contract-first-order-passes? (hash/c symbol? boolean?) (let ([ht (make-hash)])
                                                                     (hash-set! ht 'x #t)
                                                                     ht))
  
  (test-name '(or/c) (or/c))
  (test-name '(or/c integer? gt0?) (or/c integer? (let ([gt0? (lambda (x) (> x 0))]) gt0?)))
  (test-name '(or/c integer? boolean?)
             (or/c (flat-contract integer?)
                   (flat-contract boolean?)))
  (test-name '(or/c (-> (>=/c 5) (>=/c 5)) boolean?)
             (or/c (-> (>=/c 5) (>=/c 5)) boolean?))
  (test-name '(or/c (-> (>=/c 5) (>=/c 5)) boolean?)
             (or/c boolean? (-> (>=/c 5) (>=/c 5))))

  
  (ctest 1
        length
        (let ([f (contract (-> integer? any)
                           (lambda (x) 
                             (with-continuation-mark 'x 'x
                               (continuation-mark-set->list (current-continuation-marks) 'x)))
                           'pos
                           'neg)])
          (with-continuation-mark 'x 'x
            (f 1))))
  
  (ctest 2
        length
        (let ([f (contract (-> integer? list?)
                           (lambda (x) 
                             (with-continuation-mark 'x 'x
                               (continuation-mark-set->list (current-continuation-marks) 'x)))
                           'pos
                           'neg)])
          (with-continuation-mark 'x 'x
            (f 1))))

  (ctest #t contract-first-order-passes? (or/c 'x "x" #rx"x") 'x)
  (ctest #t contract-first-order-passes? (or/c 'x "x" #rx"x") "x")
  (ctest #t contract-first-order-passes? (or/c 'x "x" #rx"x.") "xy")
  (ctest #f contract-first-order-passes? (or/c 'x "x" #rx"x.") "yx")
  (ctest #f contract-first-order-passes? (or/c 'x "x" #rx"x.") 'y)
  
  
;                       
;                       
;                       
;                       
;    ;          ;;; ;;; 
;  ;;;              ;;; 
;  ;;;;  ;;;;;  ;;; ;;; 
;  ;;;; ;;;;;;; ;;; ;;; 
;  ;;;  ;;  ;;; ;;; ;;; 
;  ;;;    ;;;;; ;;; ;;; 
;  ;;;  ;;; ;;; ;;; ;;; 
;  ;;;; ;;; ;;; ;;; ;;; 
;   ;;;  ;;;;;; ;;; ;;; 
;                       
;                       
;                       
;                       

  (contract-eval
   `(define (counter)
      (let ([c 0])
        (case-lambda 
          [() c]
          [(x) (set! c (+ c 1)) #t]))))
  
  (ctest 1
         'tail-arrow
         (let ([c (counter)])
           (letrec ([f 
                     (contract (-> any/c c)
                               (λ (x) (if (zero? x) x (f (- x 1))))
                               'pos
                               'neg)])
             (f 3))
           (c)))
  
  (ctest 2
         'tail-multiple-value-arrow
         (let ([c (counter)])
           (letrec ([f 
                     (contract (-> any/c (values c c))
                               (λ (x) (if (zero? x) (values x x) (f (- x 1))))
                               'pos
                               'neg)])
             (f 3))
           (c)))
  
  (ctest 2
         'tail-arrow-star
         (let ([c (counter)])
           (letrec ([f 
                     (contract (->* (any/c) () (values c c))
                               (λ (x) (if (zero? x) (values x x) (f (- x 1))))
                               'pos
                               'neg)])
             (f 3))
           (c)))
  
  
  ;; this one is not tail recursive, since the contract system
  ;; cannot tell that the range contract doesn't depend on 'arg'
  (ctest 8
         'tail-arrow-d1/changing-args
         (let ([c (counter)])
           (letrec ([f 
                     (contract (->d ([arg any/c]) () (values [_ c] [_ c]))
                               (λ (x) (if (zero? x) (values x x) (f (- x 1))))
                               'pos
                               'neg)])
             (f 3))
           (c)))
  
  (ctest 2
         'tail-arrow-d1
         (let ([c (counter)])
           (letrec ([x 5]
                    [f 
                     (contract (->d ([arg any/c]) () (values [_ c] [_ c]))
                               (λ (_ignored) (if (zero? x) (values x x) (begin (set! x (- x 1)) (f _ignored))))
                               'pos
                               'neg)])
             (f 'ignored))
           (c)))
  
  
  ;; this one is just like the one two above.
  (ctest 4
         'tail-arrow-d2/changing-args
         (let ([c (counter)])
           (letrec ([f 
                     (contract (->d ([arg any/c]) () [rng c])
                               (λ (x) (if (zero? x) x (f (- x 1))))
                               'pos
                               'neg)])
             (f 3))
           (c)))
  
  (ctest 1
         'tail-arrow-d2
         (let ([c (counter)])
           (letrec ([x 3]
                    [f 
                     (contract (->d ([arg any/c]) () [rng c])
                               (λ (ignored) (if (zero? x) x (begin (set! x (- x 1)) (f ignored))))
                               'pos
                               'neg)])
             (f 3))
           (c)))
  
  ;; the tail-call optimization cannot handle two different
  ;; contracts on the stack one after the other one, so this
  ;; returns '(4 4) instead of '(1 1) (which would indicate
  ;; the optimization had happened).
  (ctest '(4 4)
         'tail->d-mut-rec
         (letrec ([odd-count 0]
                  [pos-count 0]
                  [count-odd?
                   (λ (x)
                     (set! odd-count (+ odd-count 1))
                     (odd? x))]
                  [count-positive? 
                   (λ (x)
                     (set! pos-count (+ pos-count 1))
                     (positive? x))]
                  [returns-odd
                   (contract (->d ([x any/c]) () [_ count-odd?])
                             (λ (x) (returns-pos x))
                             'pos
                             'neg)]
                  [returns-pos
                   (contract (->d ([x any/c]) () [_ count-positive?])
                             (λ (x) (if (zero? x) 1 (returns-odd (- x 1))))
                             'pos
                             'neg)])
           (returns-odd 3)
           (list odd-count pos-count)))
  
  (ctest 2
         'case->-regular
         (let ([c (counter)])
           (letrec ([f 
                     (contract (case-> (-> any/c c)
                                       (-> any/c any/c c))
                               (case-lambda
                                 [(x) (if (zero? x) x (f (- x 1)))]
                                 [(x y) (f x)])
                               'pos
                               'neg)])
             (f 4 1))
           (c)))
  
  (ctest 1
         'case->-rest-args
         (let ([c (counter)])
           (letrec ([f 
                     (contract (case-> (-> any/c #:rest any/c c)
                                       (-> any/c any/c #:rest any/c c))
                               (case-lambda
                                 [(x) (f x 1)]
                                 [(x y . z) (if (zero? x) x (apply f (- x 1) y (list y y)))])
                               'pos
                               'neg)])
             (f 4))
           (c)))
  
  (ctest '(1)
         'mut-rec-with-any/c
         (let ()
           (define f
             (contract (-> number? any/c)
                       (lambda (x)
                         (if (zero? x)
                             (continuation-mark-set->list (current-continuation-marks) 'tail-test)
                             (with-continuation-mark 'tail-test x
                               (g (- x 1)))))
                       'pos
                       'neg))
           
           (define g
             (contract (-> number? any/c)
                       (lambda (x)
                         (f x))
                       'pos
                       'neg))
           
           (f 3)))
  
  (test/pos-blame 'free-vars-change-so-cannot-drop-the-check
                  '(let ()
                     (define f
                       (contract (->d ([x number?]) () [_ (</c x)])
                                 (lambda (x)
                                   (cond
                                     [(= x 0) 1]
                                     [else (f 0)]))
                                 'pos
                                 'neg))
                     (f 10)))
  
  
;                             
;                             
;                             
;                             
;                             
;   ;;;;;;                    
;        ;   ;                
;        ;   ;                
;        ;  ;;  ;;;;          
;   ;;;;;;  ;  ;;;;;;         
;        ;  ; ;;;             
;        ;  ; ;;;             
;        ; ;;  ;;;;;;         
;   ;;;;;; ;    ;;;;          
;
;
;
;

  (test/spec-passed
   '∃1
   '(contract (new-∃/c 'pair)
              1
              'pos
              'neg))

  (test/neg-blame
   '∃2
   '((contract (-> (new-∃/c 'pair) any/c)
               (λ (x) x)
               'pos
               'neg)
     1))
  
  (test/spec-passed/result
   '∃3
   '(let ([pair (new-∃/c 'pair)])
      ((contract (-> (-> pair pair) any/c)
                 (λ (f) (f 11))
                 'pos
                 'neg)
       (λ (x) x)))
   11)
  
  
;                                                                
;                                                                
;                                                                
;                                        ;;      ;;;;          ;;
;                                        ;;      ;;;;          ;;
;  ;;;;;;;   ;;; ;;;   ;;;;   ;;;  ;;;        ;;;;;;;   ;;;    ;;
;  ;;;;;;;;  ;;;;;;;  ;;;;;;  ;;;  ;;; ;;;;  ;;;;;;;;  ;;;;;   ;;
;  ;;;;;;;;; ;;;; ;; ;;;;;;;;  ;;;;;;  ;;;; ;;;;;;;;; ;;;; ;;  ;;
;  ;;;; ;;;; ;;;;    ;;;; ;;;  ;;;;;;  ;;;; ;;;; ;;;; ;;;;;;; ;; 
;  ;;;;;;;;; ;;;;    ;;;;;;;;  ;;;;;;  ;;;; ;;;;;;;;; ;;;;;   ;; 
;  ;;;;;;;;  ;;;;     ;;;;;;    ;;;;   ;;;;  ;;;;;;;;  ;;;;;; ;; 
;  ;;;;;;;   ;;;;      ;;;;     ;;;;   ;;;;   ;;;;;;;   ;;;;  ;; 
;  ;;;;                                                       ;; 
;  ;;;;                                                          
;                                                                
;                                                                    
;                                                                    
;                                                                    
;                                 ;                               ;  
;                                ;;                              ;;  
;    ;;;;;   ;;;;   ;;;; ;;;   ;;;;; ;;; ;;; ;;;;;;;    ;;;;;  ;;;;; 
;   ;;;;;;  ;;;;;;  ;;;;;;;;; ;;;;;; ;;;;;;; ;;;;;;;;  ;;;;;; ;;;;;; 
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;  ;;;; ;;     ;;;; ;;;;;;;  ;;;;  
;  ;;;;    ;;;; ;;; ;;;; ;;;;  ;;;;  ;;;;     ;;;;;;; ;;;;     ;;;;  
;  ;;;;;;; ;;;;;;;; ;;;; ;;;;  ;;;;; ;;;;    ;;  ;;;; ;;;;;;;  ;;;;; 
;   ;;;;;;  ;;;;;;  ;;;; ;;;;  ;;;;; ;;;;    ;;;;;;;;  ;;;;;;  ;;;;; 
;    ;;;;;   ;;;;   ;;;; ;;;;   ;;;; ;;;;     ;; ;;;;   ;;;;;   ;;;; 
;                                                                    
;                                                                    
;                                                                    

  ;;
  ;; (at the end, becuase they are slow w/out .zo files)
  ;;
  
  (test/spec-passed
   'provide/contract1
   '(let ()
      (eval '(module contract-test-suite1 scheme/base
                (require scheme/contract)
                (define x 1)
                (provide/contract (x integer?))))
      (eval '(require 'contract-test-suite1))
      (eval 'x)))
  
  (test/spec-passed
   'provide/contract2
   '(let ()
      (eval '(module contract-test-suite2 scheme/base
                (require scheme/contract)
                (provide/contract)))
      (eval '(require 'contract-test-suite2))))
  
  (test/spec-failed
   'provide/contract3
   '(let ()
      (eval '(module contract-test-suite3 scheme/base
               (require scheme/contract)
               (define x #f)
               (provide/contract (x integer?))))
      (eval '(require 'contract-test-suite3))
      (eval 'x))
   "'contract-test-suite3")
  
  (test/spec-passed
   'provide/contract4
   '(begin
      (eval '(module contract-test-suite4 scheme/base
               (require scheme/contract)
               (define-struct s (a) #:mutable)
               (provide/contract (struct s ((a any/c))))))
      (eval '(require 'contract-test-suite4))
      (eval '(list (make-s 1)
                   (s-a (make-s 1))
                   (s? (make-s 1))
                   (set-s-a! (make-s 1) 2)))))
  
  (test/spec-passed
   'provide/contract4-b
   '(begin
      (eval '(module contract-test-suite4-b scheme/base
               (require scheme/contract)
               (define-struct s (a))
               (provide/contract (struct s ((a any/c))))))
      (eval '(require 'contract-test-suite4-b))
      (eval '(list (make-s 1)
                   (s-a (make-s 1))
                   (s? (make-s 1))))))
  
  (test/spec-passed/result
   'provide/contract4-c
   '(begin
      (eval '(module contract-test-suite4-c scheme/base
               (require scheme/contract)
               (define-struct s (a b) #:mutable)
               (provide/contract (struct s ((a any/c) (b any/c))))))
      (eval '(require 'contract-test-suite4-c))
      (eval '(let ([an-s (make-s 1 2)])
               (list (s-a an-s)
                     (s-b an-s)
                     (begin (set-s-a! an-s 3)
                            (s-a an-s))
                     (begin (set-s-b! an-s 4)
                            (s-b an-s))))))
   
   (list 1 2 3 4))
  
  (test/spec-passed
   'provide/contract5
   '(begin
      (eval '(module contract-test-suite5 scheme/base
               (require scheme/contract)
               (define-struct s (a))
               (define-struct t (a))
               (provide/contract (struct s ((a any/c)))
                                 (struct t ((a any/c))))))
      (eval '(require 'contract-test-suite5))
      (eval '(list (make-s 1)
                   (s-a (make-s 1))
                   (s? (make-s 1))
                   (make-t 1)
                   (t-a (make-t 1))
                   (t? (make-t 1))))))
  
  (test/spec-passed
   'provide/contract6
   '(begin
      (eval '(module contract-test-suite6 scheme/base
               (require scheme/contract)
               (define-struct s (a))
               (provide/contract (struct s ((a any/c))))))
      (eval '(require 'contract-test-suite6))
      (eval '(define-struct (t s) ()))))
  
  (test/spec-passed
   'provide/contract6b
   '(begin
      (eval '(module contract-test-suite6b scheme/base
               (require scheme/contract)
               (define-struct s_ (a))
               (provide/contract (struct s_ ((a any/c))))))
      (eval '(require 'contract-test-suite6b))
      (eval '(module contract-test-suite6b2 scheme/base
               (require 'contract-test-suite6b)
               (require scheme/contract)
               (define-struct (t_ s_) (b))
               (provide s_-a)
               (provide/contract (struct (t_ s_) ((a any/c) (b any/c))))))
      (eval '(require 'contract-test-suite6b2))
      (eval '(define-struct (u_ t_) ()))
      (eval '(s_-a (make-u_ 1 2)))))
  
  (test/spec-passed
   'provide/contract7
   '(begin
      (eval '(module contract-test-suite7 scheme/base
               (require scheme/contract)
               (define-struct s (a b))
               (define-struct (t s) (c d))
               (provide/contract 
                (struct s ((a any/c) (b any/c)))
                (struct (t s) ((a any/c) (b any/c) (c any/c) (d any/c))))))
      (eval '(require 'contract-test-suite7))
      (eval '(let ([x (make-t 1 2 3 4)])
               (s-a x)
               (s-b x)
               (t-c x)
               (t-d x)
               (void)))))
  
  (test/spec-passed
   'provide/contract8
   '(begin
      (eval '(module contract-test-suite8 scheme/base
               (require scheme/contract)
               (define-struct i-s (contents))
               (define (w-f-s? x) #t)
               (provide/contract 
                (struct i-s ((contents (flat-named-contract "integer-set-list" w-f-s?)))))))
      (eval '(require 'contract-test-suite8))
      (eval '(i-s-contents (make-i-s 1)))))
   
  (test/spec-passed
   'provide/contract9
   '(begin
      (eval '(module contract-test-suite9 scheme/base
               (require scheme/contract)
               (define the-internal-name 1)
               (provide/contract (rename the-internal-name the-external-name integer?))
               (+ the-internal-name 1)))
      (eval '(require 'contract-test-suite9))
      (eval '(+ the-external-name 1))))
  
  (test/spec-passed
   'provide/contract10
   '(begin
      (eval '(module pc10-m scheme/base
               (require scheme/contract)
               (define-struct s (a b) #:inspector (make-inspector))
               (provide/contract (struct s ((a number?) (b number?))))))
      (eval '(module pc10-n scheme/base
               (require mzlib/struct
                        'pc10-m)
               (print-struct #t)
               (copy-struct s 
                            (make-s 1 2)
                            [s-a 3])))
      (eval '(require 'pc10-n))))
  
  (test/spec-passed
   'provide/contract11
   '(begin
      (eval '(module pc11-m scheme/base
               (require scheme/contract)
               (define x 1)
               (provide/contract [rename x y integer?]
                                 [rename x z integer?])))
      (eval '(module pc11-n scheme/base
               (require 'pc11-m)
               (+ y z)))
      (eval '(require 'pc11-n))))
  
  ;; this test is broken, not sure why
  #|
  (test/spec-failed
   'provide/contract11b
   '(parameterize ([current-namespace (make-namespace)])
      (eval '(module pc11b-m scheme/base
               (require scheme/contract)
               (define-struct s (a b) #:inspector (make-inspector))
               (provide/contract (struct s ((a number?) (b number?))))))
      (eval '(module pc11b-n scheme/base
               (require mzlib/struct
                        m)
               (print-struct #t)
               (copy-struct s 
                            (make-s 1 2)
                            [s-a #f])))
      (eval '(require 'pc11b-n)))
   "'n")
|#
  
  (test/spec-passed
   'provide/contract12
   '(begin
      (eval '(module pc12-m scheme/base
               (require scheme/contract)
               (define-struct (exn2 exn) ())
               (provide/contract (struct (exn2 exn) ((message any/c) (continuation-marks any/c))))))
      (eval '(require 'pc12-m))))
  
  (test/spec-passed/result
   'provide/contract13
   '(begin
      (eval '(module pc13-common-msg-structs scheme/base
               (require scheme/contract)
               (define-struct register (name type) #:inspector (make-inspector))
               (provide/contract (struct register ([name any/c] [type any/c])))))
      
      (eval '(require 'pc13-common-msg-structs))
      (eval '(require (lib "plt-match.ss")))
      (eval '(match (make-register 1 2)
               [(struct register (name type))
                (list name type)])))
   (list 1 2))
  
  (test/spec-passed
   'provide/contract14
   '(begin
      (eval '(module pc14-test1 scheme/base
               (require scheme/contract)
               
               (define-struct type (flags))
               (define-struct (type:ptr type) (type))
               
               (provide/contract
                (struct type
                        ([flags (listof string?)]))
                
                (struct (type:ptr type)
                        ([flags (listof string?)] [type type?])))))

      (eval '(module pc14-test2 scheme/base
               (require mzlib/plt-match)
               (require 'pc14-test1)
               (match (make-type:ptr '() (make-type '()))
                 [(struct type:ptr (flags type)) #f])))
      (eval '(require 'pc14-test2))))
  
  ;; make sure unbound identifier exception is raised.
  (contract-error-test
   #'(begin
       (eval '(module pos scheme/base
                (require scheme/contract)
                (provide/contract [i any/c]))))
   exn:fail:syntax?)
  
  ;; provide/contract should signal errors without requiring a reference to the variable
  ;; this test is bogus, because provide/contract'd variables can be set!'d.
  (test/spec-failed
   'provide/contract15
   '(begin
      (eval '(module pos scheme/base
               (require scheme/contract)
               (define i #f)
               (provide/contract [i integer?])))
      (eval '(require 'pos)))
   "'pos")
  
  ;; this is really a positive violation, but name the module `neg' just for an addl test
  (test/spec-failed
   'provide/contract16
   '(begin
      (eval '(module neg scheme/base
               (require scheme/contract)
               (define i #f)
               (provide/contract [i integer?])))
      (eval '(require 'neg)))
   "'neg")
  
  ;; this test doesn't pass yet ... waiting for support from define-struct
  
  #;
  (test/neg-blame
   'provide/contract17
   '(begin
      (eval '(module pos scheme/base
               (require scheme/contract)
               (define-struct s (a))
               (provide/contract [struct s ((a integer?))])))
      (eval '(module neg scheme/base
               (require 'pos)
               (define-struct (t s) ())
               (make-t #f)))
      (eval '(require 'neg))))
  
  (test/spec-passed
   'provide/contract18
   '(begin
      (eval '(module pc18-pos scheme/base
               (require scheme/contract)
               (define-struct s ())
               (provide/contract [struct s ()])))
      (eval '(require 'pc18-pos))
      (eval '(make-s))))

  (test/spec-passed/result
   'provide/contract19
   '(begin
      (eval '(module pc19-a scheme/base
               (require scheme/contract)
               (define-struct a (x))
               (provide/contract [struct a ([x number?])])))

      (eval '(module pc19-b scheme/base
               (require 'pc19-a
                        scheme/contract)
               (define-struct (b a) (y))
               (provide/contract [struct (b a) ([x number?] [y number?])])))

      (eval '(module pc19-c scheme/base
               (require 'pc19-b
                        scheme/contract)
               
               (define-struct (c b) (z))
               (provide/contract [struct (c b) ([x number?] [y number?] [z number?])])))

      (eval' (module pc19-d scheme/base
               (require 'pc19-a 'pc19-c)
               (define pc19-ans (a-x (make-c 1 2 3)))
               (provide pc19-ans)))
      
      (eval '(require 'pc19-d))
      (eval 'pc19-ans))
   1)

  ;; test that unit & contract don't collide over the name `struct'
  (test/spec-passed
   'provide/contract20
   '(eval '(module tmp scheme/base
             (require scheme/contract
                      mzlib/unit)
             
             (define-struct s (a b))
             
             (provide/contract
              [struct s ([a number?]
                         [b symbol?])]))))
  
  (test/spec-passed
   'provide/contract21
   '(begin
      (eval '(module provide/contract21a scheme/base
               (require scheme/contract)
               (provide/contract [f integer?])
               (define f 1)))
      (eval '(module provide/contract21b scheme/base
               (require (for-syntax 'provide/contract21a)
                        (for-syntax scheme/base))
               (define-syntax (unit-body stx)
                 f f
                 #'1)))))
  
  (test/spec-passed
   'provide/contract22
   '(begin
      (eval '(module provide/contract22a scheme/base
               (require scheme/contract)
               (provide/contract [make-bound-identifier-mapping integer?])
               (define make-bound-identifier-mapping 1)))
      (eval '(module provide/contract22b scheme/base
               (require (for-syntax 'provide/contract22a)
                        (for-syntax scheme/base))
               
               (define-syntax (unit-body stx)
                 make-bound-identifier-mapping)
               
               (define-syntax (f stx)
                 make-bound-identifier-mapping)))))
  
  (test/spec-passed
   'provide/contract23
   '(begin
      (eval '(module provide/contract23a scheme/base
               (require scheme/contract)
               (provide/contract [f integer?])
               (define f 3)))
      
      (eval '(module provide/contract23b scheme/base
               (require 'provide/contract23a)
               (#%expression f)
               f))
      
      (eval '(require 'provide/contract23b))))

#|
  (test/spec-passed
   'provide/contract24
   '(begin
      (eval '(module provide/contract24 scheme/base
               (require (prefix-in c: scheme/contract))
               (c:case-> (c:-> integer? integer?)
                         (c:-> integer? integer? integer?))))))
  |#
  
  ;; tests that contracts pick up the #%app from the context
  ;; instead of always using the scheme/base #%app.
  (test/spec-passed
   'provide/contract25
   '(begin
      (eval '(module provide/contract25a scheme/base
               (require scheme/contract)
               (provide/contract [seventeen integer?])
               (define seventeen 17)))
      (eval '(module provide/contract25b scheme/base
               (require 'provide/contract25a)
               (let-syntax ([#%app (syntax-rules ()
                                     [(#%app e ...) (list e ...)])])
                 (seventeen 18))))
      (eval '(require 'provide/contract25b))))
  
  (test/spec-passed/result
   'provide/contract26
   '(begin
      (eval '(module provide/contract26 scheme/base
               (require scheme/contract)
               (define-struct pc26-s (a))
               (provide/contract (struct pc26-s ((a integer?))))))
      (eval '(require 'provide/contract26))
      (eval '(pc26-s-a (make-pc26-s 1))))
   1)
  
  (test/spec-passed/result
   'provide/contract27
   '(begin
      (eval '(module provide/contract27a scheme/base
               (require scheme/contract)
               (define-struct person (name) #:transparent)
               (provide/contract (struct person ([name string?])))))
      (eval '(module provide/contract27b scheme/base
               (require 'provide/contract27a)
               (provide (struct-out person))))
      (eval '(module provide/contract27c scheme/base
               (require 'provide/contract27b)
               (define provide/contract27ans (person-name (make-person "me")))
               (provide provide/contract27ans)))
      (eval '(require 'provide/contract27c))
      (eval 'provide/contract27ans))
   "me")
  
  #;
  (test/spec-passed/result
   'provide/contract28
   '(begin
      (eval '(module provide/contract28-m1 scheme/base
               (require scheme/contract)
               (define-struct repair () #:transparent)
               (provide/contract [struct repair ()])))
      (eval '(module provide/contract28-m2 scheme/base
               (require 'provide/contract28-m1 scheme/contract)
               (provide/contract [struct repair ()])))
      (eval '(module provide/contract28-m3 scheme/base
               (require 'provide/contract28-m2)
               (provide provide/contract28-res)
               (define provide/contract28-res (repair? (make-repair)))))
      (eval '(require 'provide/contract28-m3))
      (eval 'provide/contract28-res))
   #t)
  
  #;
  (test/spec-passed/result
   'provide/contract29
   '(begin
      (eval '(module provide/contract29-m1 scheme/base
               (require scheme/contract)
               (define-struct q (a b))
               (define-struct (repair q) (c d) #:transparent)
               (provide/contract [struct repair ([a integer?] [b integer?] [c integer?] [d integer?])])))
      (eval '(module provide/contract29-m2 scheme/base
               (require 'provide/contract29-m1 scheme/contract)
               (provide/contract [struct repair ([a integer?] [b integer?] [c integer?] [d integer?])])))
      (eval '(module provide/contract29-m3 scheme/base
               (require 'provide/contract29-m2)
               (provide provide/contract29-res)
               (define provide/contract29-res (list (repair? (make-repair 1 2 3 4))
                                                    (repair-c (make-repair 1 2 3 4))))))
      (eval '(require 'provide/contract29-m3))
      (eval 'provide/contract29-res))
   (list #t 3))

  ;; for this test I have to be able to track back thru the requirees to find the right 
  ;; name for the negative blame (currently it blames m3, but it should  blame m2).
  #;
  (test/spec-failed
   'provide/contract30
   '(begin
      (eval '(module provide/contract30-m1 scheme/base
               (require scheme/contract)
               (provide/contract [f (-> integer? integer?)])
               (define (f x) x)))
      (eval '(module provide/contract30-m2 scheme/base
               (require 'provide/contract30-m1)
               (provide f)))
      (eval '(module provide/contract30-m3 scheme/base
               (require 'provide/contract30-m2)
               (f #f)))
      (eval '(require 'provide/contract30-m3)))
   "'provide/contract30-m2")
  
  (test/spec-passed/result
   'provide/contract31
   '(begin
      (eval '(module provide/contract31-m1 scheme/base
               (require scheme/contract)
               (provide/contract
                #:∃ x
                [f (-> (-> x x) 10)])
               (define (f g) (g 10))))

      (eval '(module provide/contract31-m2 scheme/base
               (require scheme/contract 'provide/contract31-m1)
               (provide provide/contract31-x)
               (define provide/contract31-x (f (λ (x) x)))))
      
      (eval '(require 'provide/contract31-m2))
      (eval 'provide/contract31-x))
   10)
  
  (test/spec-passed/result
   'provide/contract32
   '(begin
      (eval '(module provide/contract32-m1 scheme/base
               (require scheme/contract)
               (provide/contract
                #:exists x
                [f (-> (-> x x) 10)])
               (define (f g) (g 10))))

      (eval '(module provide/contract32-m2 scheme/base
               (require scheme/contract 'provide/contract32-m1)
               (provide provide/contract32-x)
               (define provide/contract32-x (f (λ (x) x)))))
      
      (eval '(require 'provide/contract32-m2))
      (eval 'provide/contract32-x))
   10)
  
  (test/spec-passed/result
   'provide/contract33
   '(begin
      (eval '(module provide/contract33-m1 scheme/base
               (require scheme/contract)
               (provide/contract
                #:exists (x)
                [f (-> (-> x x) 10)])
               (define (f g) (g 10))))

      (eval '(module provide/contract33-m2 scheme/base
               (require scheme/contract 'provide/contract33-m1)
               (provide provide/contract33-x)
               (define provide/contract33-x (f (λ (x) x)))))
      
      (eval '(require 'provide/contract33-m2))
      (eval 'provide/contract33-x))
   10)
  
  (test/spec-passed/result
   'provide/contract34
   '(begin
      (eval '(module provide/contract34-m1 scheme/base
               (require scheme/contract)
               (define x integer?)
               (define g 11)
               (provide/contract
                [g x]
                #:exists (x)
                [f (-> (-> x x) 10)])
               (define (f g) (g 10))))

      (eval '(module provide/contract34-m2 scheme/base
               (require scheme/contract 'provide/contract34-m1)
               (provide provide/contract34-x)
               (define provide/contract34-x (f (λ (x) x)))))
      
      (eval '(require 'provide/contract34-m2))
      (eval 'provide/contract34-x))
   10)
      
  (contract-error-test
   #'(begin
       (eval '(module pce1-bug scheme/base
                (require scheme/contract)
                (define the-defined-variable1 'five)
                (provide/contract [the-defined-variable1 number?])))
       (eval '(require 'pce1-bug)))
   (λ (x)
     (and (exn? x)
          (regexp-match #rx"on the-defined-variable1" (exn-message x)))))
  
  (contract-error-test
   #'(begin
       (eval '(module pce2-bug scheme/base
                (require scheme/contract)
                (define the-defined-variable2 values)
                (provide/contract [the-defined-variable2 (-> number? any)])))
       (eval '(require 'pce2-bug))
       (eval '(the-defined-variable2 #f)))
   (λ (x)
     (and (exn? x)
          (regexp-match #rx"on the-defined-variable2" (exn-message x)))))
  
  (contract-error-test
   #'(begin
       (eval '(module pce3-bug scheme/base
                (require scheme/contract)
                (define the-defined-variable3 (λ (x) #f))
                (provide/contract [the-defined-variable3 (-> any/c number?)])))
       (eval '(require 'pce3-bug))
       (eval '(the-defined-variable3 #f)))
   (λ (x)
     (and (exn? x)
          (regexp-match #rx"on the-defined-variable3" (exn-message x)))))
  
  (contract-error-test
   #'(begin
       (eval '(module pce4-bug scheme/base
                (require scheme/contract)
                (define the-defined-variable4 (λ (x) #f))
                (provide/contract [the-defined-variable4 (-> any/c number?)])))
       (eval '(require 'pce4-bug))
       (eval '((if #t the-defined-variable4 the-defined-variable4) #f)))
   (λ (x)
     (and (exn? x)
          (regexp-match #rx"on the-defined-variable4" (exn-message x)))))

  (contract-error-test
   #'(begin
       (eval '(module pce5-bug scheme/base
                (require scheme/contract)
                
                (define-struct bad (a b))
                
                (provide/contract
                 [struct bad ((string? a) (string? b))])))
       (eval '(require 'pce5-bug)))
   (λ (x)
     (and (exn? x)
          (regexp-match #rx"expected field name to be b, but found string?" (exn-message x)))))
  
  (contract-error-test
   #'(begin
       (eval '(module pce6-bug scheme/base
                (require scheme/contract)
                
                (define-struct bad-parent (a))
                (define-struct (bad bad-parent) (b))
                
                (provide/contract
                 [struct bad ((a string?) (string? b))])))
       (eval '(require 'pce6-bug)))
   (λ (x)
     (and (exn? x)
          (regexp-match #rx"expected field name to be b, but found string?" (exn-message x)))))
  
  (contract-error-test
   #'(begin
       (eval '(module pce7-bug scheme/base
                (require scheme/contract)
                (define x 1)
                (provide/contract [x integer?])))
       (eval '(module pce7-bug2 scheme/base
                (require 'pce7-bug)
                (set! x 5))))
   (λ (x)
     (and (exn? x)
          (regexp-match #rx"cannot set!" (exn-message x)))))
  
  (contract-error-test
   #'(begin
       (eval '(module pce8-bug1 scheme/base
                (require scheme/contract)
                (define (f x) x)
                (provide/contract [f (-> integer? integer? integer?)])))
       (eval '(require 'pce8-bug1)))
   (λ (x)
     (printf ">> ~s\n" (exn-message x))
     (and (exn? x)
          (regexp-match #rx"pce8-bug" (exn-message x)))))
  
  (contract-eval `(,test 'pos guilty-party (with-handlers ((void values)) (contract not #t 'pos 'neg))))
  
  (report-errs)
  
))