2d4f3e2ac9
The layer is now redundant, since everything left in "pkgs" is in the "racket-pkgs" category.
20 lines
553 B
Racket
20 lines
553 B
Racket
#lang racket
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(require rackunit rackunit/text-ui "5.rkt")
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(define s (put (put (initialize (flat-contract integer?) =) 2) 1))
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(run-tests
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(test-suite
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"queue"
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(test-true
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"empty"
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(is-empty? (initialize (flat-contract integer?) =)))
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(test-true "put" (queue? s))
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(test-equal? "count" 2 (count s))
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(test-true "put exn"
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(with-handlers ([exn:fail:contract? (lambda _ #t)])
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(put (initialize (flat-contract integer?)) 'a)
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#f))
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(test-true "remove" (queue? (rem s)))
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(test-equal? "head" 2 (head s))))
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