racket/collects/tests/unstable/hash.rkt
2010-06-06 20:30:48 -04:00

54 lines
2.3 KiB
Racket

#lang racket
(require rackunit rackunit/text-ui unstable/hash "helpers.rkt")
(run-tests
(test-suite "hash.ss"
(test-suite "hash-equal?"
(test (check-true (hash-equal? #hash())))
(test (check-false (hash-equal? #hasheq())))
(test (check-false (hash-equal? #hasheqv()))))
(test-suite "hash-ref/check"
(test-ok (check-equal? (hash-ref/check #hash([1 . one] [2 . two]) 1)
'one))
(test-bad (hash-ref/check #hash([1 . one] [2 . two]) 3)))
(test-suite "hash-ref/identity"
(test-ok (check-equal? (hash-ref/identity #hash([1 . one] [2 . two]) 1)
'one))
(test-ok (check-equal? (hash-ref/identity #hash([1 . one] [2 . two]) 3)
3)))
(test-suite "hash-ref/default"
(test-ok (check-equal? (hash-ref/default #hash([1 . one] [2 . two]) 1 '?)
'one))
(test-ok (check-equal? (hash-ref/default #hash([1 . one] [2 . two]) 3 '?)
'?)))
(test-suite "hash-ref/failure"
(test-ok (define x 7)
(define (f) (set! x (+ x 1)) x)
(check-equal? (hash-ref/failure #hash([1 . one] [2 . two]) 1 f)
'one)
(check-equal? x 7)
(check-equal? (hash-ref/failure #hash([1 . one] [2 . two]) 3 f)
8)
(check-equal? x 8)))
(test-suite "hash-has-key?"
(test-ok (check-equal? (hash-has-key? #hash([1 . one] [2 . two]) 1) #t))
(test-ok (check-equal? (hash-has-key? #hash([1 . one] [2 . two]) 3) #f)))
(test-suite "hash-domain"
(test-ok (check-equal? (hash-domain #hash([1 . one] [2 . two])) '(1 2))))
(test-suite "hash-range"
(test-ok (check-equal? (hash-range #hash([1 . one] [2 . two]))
'(one two))))
(test-suite "hash-union"
(test-ok (hash-union #hash([1 . one] [2 . two])
#hash([3 . three] [4 . four]))
#hash([4 . four] [3 . three] [1 . one] [2 . two])))
(test-suite "hash-union!"
(test-ok (define h (make-hash))
(hash-union! h #hash([1 . one] [2 . two]))
(hash-union! h #hash([3 . three] [4 . four]))
(check-equal? (hash-copy
#hash([1 . one] [2 . two] [3 . three] [4 . four]))
h)))))