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(logbit?): New tests.

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This commit is contained in:
Kevin Ryde 2004-05-09 22:49:43 +00:00
parent c60695a109
commit 34a3e10b36
1 changed files with 35 additions and 0 deletions
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35
test-suite/tests/numbers.test
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@ -1560,3 +1560,38 @@
;;; ;;;
;;; inexact->exact ;;; inexact->exact
;;; ;;;
;;;
;;; logbit?
;;;
(with-test-prefix "logbit?"
(pass-if "0 0" (eq? #f (logbit? 0 0)))
(pass-if "1 0" (eq? #f (logbit? 1 0)))
(pass-if "31 0" (eq? #f (logbit? 31 0)))
(pass-if "32 0" (eq? #f (logbit? 32 0)))
(pass-if "33 0" (eq? #f (logbit? 33 0)))
(pass-if "63 0" (eq? #f (logbit? 63 0)))
(pass-if "64 0" (eq? #f (logbit? 64 0)))
(pass-if "65 0" (eq? #f (logbit? 65 0)))
;; prior to guile 1.6.5, testing bit 32, 64 etc of value 1 would wrap
;; around and return #t where it ought to be #f
(pass-if "0 1" (eq? #t (logbit? 0 1)))
(pass-if "1 1" (eq? #f (logbit? 1 1)))
(pass-if "31 1" (eq? #f (logbit? 31 1)))
(pass-if "32 1" (eq? #f (logbit? 32 1)))
(pass-if "33 1" (eq? #f (logbit? 33 1)))
(pass-if "63 1" (eq? #f (logbit? 63 1)))
(pass-if "64 1" (eq? #f (logbit? 64 1)))
(pass-if "65 1" (eq? #f (logbit? 65 1)))
(pass-if "128 1" (eq? #f (logbit? 128 1)))
(pass-if "0 -1" (eq? #t (logbit? 0 -1)))
(pass-if "1 -1" (eq? #t (logbit? 1 -1)))
(pass-if "31 -1" (eq? #t (logbit? 31 -1)))
(pass-if "32 -1" (eq? #t (logbit? 32 -1)))
(pass-if "33 -1" (eq? #t (logbit? 33 -1)))
(pass-if "63 -1" (eq? #t (logbit? 63 -1)))
(pass-if "64 -1" (eq? #t (logbit? 64 -1)))
(pass-if "65 -1" (eq? #t (logbit? 65 -1))))