124 lines
4.7 KiB
Racket
124 lines
4.7 KiB
Racket
#lang racket/base
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;; Provides a harness for running programs on the browser and
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;; examining their results.
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;; Provides a test form that expects the path of a program and its
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;; expected output.
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(require (planet dyoo/browser-evaluate)
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"../js-assembler/package.rkt"
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"../make/make-structs.rkt"
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racket/port
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racket/path
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racket/runtime-path
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racket/runtime-path
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(for-syntax racket/base
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racket/path
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racket/port))
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(define first-run #t)
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(define evaluate (make-evaluate
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(lambda (program op)
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(fprintf op "(function () {")
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(newline op)
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(when first-run
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(display (get-runtime) op)
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(set! first-run #f))
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(display "return (function(succ, fail, params) {
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var machine = new plt.runtime.Machine();
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plt.runtime.currentMachine = machine;" op)
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(package program
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#:should-follow-children? (lambda (src) #t)
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#:output-port op)
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(display " machine.params.currentDisplayer = function(MACHINE, v) {
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params.currentDisplayer(v);
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};
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plt.runtime.ready(function() {
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plt.runtime.invokeMains(machine,
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succ,
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function(MACHINE, e) {
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fail(e);
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});
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});
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});
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});" op))))
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;; Flatten the paths out.
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(define (strip-paths s)
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(regexp-replace* #px"#<path:[^>]+>"
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s
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"<path:...>"))
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;; We use a customized error structure that supports
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;; source location reporting.
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(define-struct (exn:fail:error-on-test exn:fail)
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(srcloc)
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#:property prop:exn:srclocs
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(lambda (a-struct)
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(list (exn:fail:error-on-test-srcloc a-struct))))
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(define (test/loc original-source-file-path source-file-path
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original-expected-file-path expected-file-path
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loc-thunk)
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(printf "running test on ~s..." original-source-file-path)
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(flush-output (current-output-port))
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(let* ([exp (call-with-input-file expected-file-path port->string)]
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[src-path source-file-path]
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[result (evaluate (make-MainModuleSource src-path))]
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[output (evaluated-stdout result)])
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(cond [(string=? (strip-paths output)
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(strip-paths exp))
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(printf " ok (~a milliseconds)\n" (evaluated-t result))]
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[else
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(printf " error!\n")
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(raise (make-exn:fail:error-on-test
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(format "Expected ~s, got ~s" exp output)
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(current-continuation-marks)
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(loc-thunk)))])))
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(define-syntax (test stx)
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(syntax-case stx ()
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[(_ source-file-path)
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(with-syntax ([expected-file-path
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(regexp-replace "\\.rkt$"
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(syntax-e
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#'source-file-path)
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".expected")])
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#'(test source-file-path expected-file-path))]
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[(_ original-source-file-path original-expected-file-path)
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(with-syntax ([stx stx]
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[source-file-path (parameterize ([current-directory
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(current-load-relative-directory)])
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(normalize-path (syntax-e #'original-source-file-path)))]
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[expected-file-path (parameterize ([current-directory
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(current-load-relative-directory)])
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(normalize-path (syntax-e #'original-expected-file-path)))])
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(quasisyntax/loc #'stx
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(test/loc original-source-file-path source-file-path
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original-expected-file-path expected-file-path
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(lambda ()
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(srcloc '#,(syntax-source #'stx)
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'#,(syntax-line #'stx)
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'#,(syntax-column #'stx)
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'#,(syntax-position #'stx)
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'#,(syntax-span #'stx))))))]))
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(provide test) |