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d40752513f
* libguile/bitvectors.c (scm_bit_count_star): Fix typo introduced in 2005 refactor (!) in which the second arg was erroneously taken from the first arg. * test-suite/tests/bitvectors.test: Add test. * doc/ref/api-compound.texi: Fix doc example for u32vector selector.
76 lines
2.7 KiB
Scheme
76 lines
2.7 KiB
Scheme
;;;; bitvectors.test --- tests guile's bitvectors -*- scheme -*-
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;;;;
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;;;; Copyright 2010, 2011, 2013, 2014 Free Software Foundation, Inc.
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;;;;
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;;;; This library is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU Lesser General Public
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;;;; License as published by the Free Software Foundation; either
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;;;; version 3 of the License, or (at your option) any later version.
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;;;;
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;;;; This library is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;;; Lesser General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU Lesser General Public
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;;;; License along with this library; if not, write to the Free Software
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;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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(define-module (test-suite test-bitvectors)
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#:use-module (test-suite lib))
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(with-test-prefix "predicates"
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(pass-if (bitvector? #*1010101010))
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(pass-if (array? #*1010101010))
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(pass-if (eq? (array-type #*1010101010) 'b)))
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(with-test-prefix "equality"
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(pass-if (equal? #*1010101 #*1010101))
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(pass-if (array-equal? #*1010101 #*1010101))
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(pass-if (not (equal? #*10101010 #*1010101)))
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(pass-if (not (array-equal? #*10101010 #*1010101))))
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(with-test-prefix "lists"
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(pass-if (equal? (bitvector->list #*10010) '(#t #f #f #t #f)))
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(pass-if (equal? (array->list #*10010) '(#t #f #f #t #f)))
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(pass-if (equal? #*10010 (list->bitvector '(#t #f #f #t #f)))))
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(with-test-prefix "ref and set"
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(with-test-prefix "as bitvector"
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(let ((bv (list->bitvector '(#f #f #t #f #t))))
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(pass-if (eqv? (bitvector-ref bv 0) #f))
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(pass-if (eqv? (bitvector-ref bv 2) #t))
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(bitvector-set! bv 0 #t)
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(pass-if (eqv? (bitvector-ref bv 0) #t))))
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(with-test-prefix "as array"
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(let ((bv (list->bitvector '(#f #f #t #f #t))))
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(pass-if (eqv? (array-ref bv 0) #f))
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(pass-if (eqv? (array-ref bv 2) #t))
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(array-set! bv #t 0)
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(pass-if (eqv? (array-ref bv 0) #t)))))
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(with-test-prefix "bit-set*!"
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(pass-if "#t"
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(let ((v (bitvector #t #t #f #f)))
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(bit-set*! v #*1010 #t)
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(equal? v #*1110)))
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(pass-if "#f"
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(let ((v (bitvector #t #t #f #f)))
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(bit-set*! v #*1010 #f)
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(equal? v #*0100)))
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(pass-if "#t, shorter"
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(let ((v (bitvector #t #t #f #f)))
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(bit-set*! v #*101 #t)
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(equal? v #*1110)))
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(pass-if "#f, shorter"
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(let ((v (bitvector #t #t #f #f)))
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(bit-set*! v #*101 #f)
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(equal? v #*0100))))
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(with-test-prefix "bit-count*"
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(pass-if-equal 3 (bit-count* #*01110111 #*11001101 #t))
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(pass-if-equal 2 (bit-count* #*01110111 #u32(7 0 4) #f)))
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