13 lines
335 B
Scheme
13 lines
335 B
Scheme
#lang scheme
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(require schemeunit/test schemeunit/text-ui "3.ss")
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(define d0 (initialize (flat-contract integer?) =))
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(define d (put (put (put d0 'a 2) 'b 2) 'c 1))
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(run-tests
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(test-suite
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"dictionaries"
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(test-equal? "value for" 2 (value-for d 'b))
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(test-false "has?" (has? (rem d 'b) 'b))
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(test-equal? "count" 3 (count d))))
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