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https://github.com/emilybache/GildedRose-Refactoring-Kata.git
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59 lines
1.4 KiB
Scheme
59 lines
1.4 KiB
Scheme
;;;
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;;; Unit test framework for Scheme
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;;; Copyright (c) 2018, Peter Kofler, http://www.code-cop.org/
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;;; BSD licensed.
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;;;
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;;; Non S5RS used functions:
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;;; * (error) from R6RS
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;;;
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;; SchemeUnit from http://c2.com/cgi/wiki?SchemeUnit
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(define (fail msg)
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(error (string-append "AssertionError" ": " msg)))
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(define (check msg condition)
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(if (not condition)
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(fail msg)
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#t))
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(define (assert msg condition)
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(lambda () (check msg condition)))
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;; extensions
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;; private
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(define (make-string-message prefix to-string expected actual)
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(make-message prefix
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(to-string expected)
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(to-string actual)))
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;; private
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(define (make-message prefix expected actual)
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(string-append prefix "expected:<" expected "> but was:<" actual ">"))
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(define (assert-equal to-string eq-op expected actual)
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(assert (make-string-message "" to-string expected actual)
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(eq-op expected actual)))
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(define (assert= expected actual)
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(assert-equal number->string = expected actual))
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(define (assert-string= expected actual)
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(assert-equal values string=? expected actual))
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;; private
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(define (test-case-name name)
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(display name)
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(display " ... "))
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;; private
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(define (test-case-success)
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(display "OK")
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(newline))
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(define (test-case name . assertions)
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(test-case-name name)
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(for-each (lambda (a) (a)) assertions)
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(test-case-success))
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