1 ;;;; bytevectors.test --- Exercise the R6RS bytevector API.
3 ;;;; Copyright (C) 2009 Free Software Foundation, Inc.
6 ;;;; This library is free software; you can redistribute it and/or
7 ;;;; modify it under the terms of the GNU Lesser General Public
8 ;;;; License as published by the Free Software Foundation; either
9 ;;;; version 3 of the License, or (at your option) any later version.
11 ;;;; This library is distributed in the hope that it will be useful,
12 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 ;;;; Lesser General Public License for more details.
16 ;;;; You should have received a copy of the GNU Lesser General Public
17 ;;;; License along with this library; if not, write to the Free Software
18 ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 (define-module (test-bytevector)
21 :use-module (test-suite lib)
22 :use-module (system base compile)
23 :use-module (rnrs bytevector))
25 ;;; Some of the tests in here are examples taken from the R6RS Standard
26 ;;; Libraries document.
29 (syntax-rules (pass-if pass-if-exception)
30 ((_ (pass-if test-name exp))
31 (begin (pass-if (string-append test-name " (eval)")
32 (primitive-eval 'exp))
33 (pass-if (string-append test-name " (compile)")
34 (compile 'exp #:to 'value #:env (current-module)))))
35 ((_ (pass-if-exception test-name exc exp))
36 (begin (pass-if-exception (string-append test-name " (eval)")
37 exc (primitive-eval 'exp))
38 (pass-if-exception (string-append test-name " (compile)")
39 exc (compile 'exp #:to 'value
40 #:env (current-module)))))))
42 (define-syntax with-test-prefix/c&e
44 ((_ section-name exp ...)
45 (with-test-prefix section-name (c&e exp) ...))))
49 (with-test-prefix/c&e "2.2 General Operations"
51 (pass-if "native-endianness"
52 (not (not (memq (native-endianness) '(big little)))))
54 (pass-if "make-bytevector"
55 (and (bytevector? (make-bytevector 20))
56 (bytevector? (make-bytevector 20 3))))
58 (pass-if "bytevector-length"
59 (= (bytevector-length (make-bytevector 20)) 20))
61 (pass-if "bytevector=?"
62 (and (bytevector=? (make-bytevector 20 7)
63 (make-bytevector 20 7))
64 (not (bytevector=? (make-bytevector 20 7)
65 (make-bytevector 20 0))))))
68 (with-test-prefix/c&e "2.3 Operations on Bytes and Octets"
70 (pass-if "bytevector-{u8,s8}-ref"
71 (equal? '(-127 129 -1 255)
72 (let ((b1 (make-bytevector 16 -127))
73 (b2 (make-bytevector 16 255)))
74 (list (bytevector-s8-ref b1 0)
75 (bytevector-u8-ref b1 0)
76 (bytevector-s8-ref b2 0)
77 (bytevector-u8-ref b2 0)))))
79 (pass-if "bytevector-{u8,s8}-set!"
80 (equal? '(-126 130 -10 246)
81 (let ((b (make-bytevector 16 -127)))
83 (bytevector-s8-set! b 0 -126)
84 (bytevector-u8-set! b 1 246)
86 (list (bytevector-s8-ref b 0)
87 (bytevector-u8-ref b 0)
88 (bytevector-s8-ref b 1)
89 (bytevector-u8-ref b 1)))))
91 (pass-if "bytevector->u8-list"
92 (let ((lst '(1 2 3 128 150 255)))
95 (let ((b (make-bytevector 6)))
96 (for-each (lambda (i v)
97 (bytevector-u8-set! b i v))
102 (pass-if "u8-list->bytevector"
103 (let ((lst '(1 2 3 128 150 255)))
105 (bytevector->u8-list (u8-list->bytevector lst)))))
107 (pass-if "bytevector-uint-{ref,set!} [small]"
108 (let ((b (make-bytevector 15)))
109 (bytevector-uint-set! b 0 #x1234
110 (endianness little) 2)
111 (equal? (bytevector-uint-ref b 0 (endianness big) 2)
114 (pass-if "bytevector-uint-set! [large]"
115 (let ((b (make-bytevector 16)))
116 (bytevector-uint-set! b 0 (- (expt 2 128) 3)
117 (endianness little) 16)
118 (equal? (bytevector->u8-list b)
119 '(253 255 255 255 255 255 255 255
120 255 255 255 255 255 255 255 255))))
122 (pass-if "bytevector-uint-{ref,set!} [large]"
123 (let ((b (make-bytevector 120)))
124 (bytevector-uint-set! b 0 (- (expt 2 128) 3)
125 (endianness little) 16)
126 (equal? (bytevector-uint-ref b 0 (endianness little) 16)
127 #xfffffffffffffffffffffffffffffffd)))
129 (pass-if "bytevector-sint-ref [small]"
130 (let ((b (u8-list->bytevector '(#xff #xf0 #xff))))
131 (equal? (bytevector-sint-ref b 0 (endianness big) 2)
132 (bytevector-sint-ref b 1 (endianness little) 2)
135 (pass-if "bytevector-sint-ref [large]"
136 (let ((b (make-bytevector 50)))
137 (bytevector-uint-set! b 0 (- (expt 2 128) 3)
138 (endianness little) 16)
139 (equal? (bytevector-sint-ref b 0 (endianness little) 16)
142 (pass-if "bytevector-sint-set! [small]"
143 (let ((b (make-bytevector 3)))
144 (bytevector-sint-set! b 0 -16 (endianness big) 2)
145 (bytevector-sint-set! b 1 -16 (endianness little) 2)
146 (equal? (bytevector->u8-list b)
150 (let ((bv1 (u8-list->bytevector (iota 123)))
151 (bv2 (u8-list->bytevector (iota 123))))
155 (with-test-prefix/c&e "2.4 Operations on Integers of Arbitrary Size"
157 (pass-if "bytevector->sint-list"
158 (let ((b (u8-list->bytevector '(1 2 3 255 1 2 1 2))))
159 (equal? (bytevector->sint-list b (endianness little) 2)
160 '(513 -253 513 513))))
162 (pass-if "bytevector->uint-list"
163 (let ((b (u8-list->bytevector '(2 1 255 3 2 1 2 1))))
164 (equal? (bytevector->uint-list b (endianness big) 2)
165 '(513 65283 513 513))))
167 (pass-if "bytevector->uint-list [empty]"
168 (let ((b (make-bytevector 0)))
169 (null? (bytevector->uint-list b (endianness big) 2))))
171 (pass-if-exception "bytevector->sint-list [out-of-range]"
172 exception:out-of-range
173 (bytevector->sint-list (make-bytevector 6) (endianness little) 8))
175 (pass-if "bytevector->sint-list [off-by-one]"
176 (equal? (bytevector->sint-list (make-bytevector 31 #xff)
177 (endianness little) 8)
180 (pass-if "{sint,uint}-list->bytevector"
181 (let ((b1 (sint-list->bytevector '(513 -253 513 513)
182 (endianness little) 2))
183 (b2 (uint-list->bytevector '(513 65283 513 513)
184 (endianness little) 2))
185 (b3 (u8-list->bytevector '(1 2 3 255 1 2 1 2))))
186 (and (bytevector=? b1 b2)
187 (bytevector=? b2 b3))))
189 (pass-if "sint-list->bytevector [limits]"
190 (bytevector=? (sint-list->bytevector '(-32768 32767)
192 (let ((bv (make-bytevector 4)))
193 (bytevector-u8-set! bv 0 #x80)
194 (bytevector-u8-set! bv 1 #x00)
195 (bytevector-u8-set! bv 2 #x7f)
196 (bytevector-u8-set! bv 3 #xff)
199 (pass-if-exception "sint-list->bytevector [out-of-range]"
200 exception:out-of-range
201 (sint-list->bytevector (list 0 0 (expt 2 16)) (endianness big)
204 (pass-if-exception "uint-list->bytevector [out-of-range]"
205 exception:out-of-range
206 (uint-list->bytevector '(0 -1) (endianness big) 2)))
209 (with-test-prefix/c&e "2.5 Operations on 16-Bit Integers"
211 (pass-if "bytevector-u16-ref"
212 (let ((b (u8-list->bytevector
213 '(255 255 255 255 255 255 255 255
214 255 255 255 255 255 255 255 253))))
215 (and (equal? (bytevector-u16-ref b 14 (endianness little))
217 (equal? (bytevector-u16-ref b 14 (endianness big))
220 (pass-if "bytevector-s16-ref"
221 (let ((b (u8-list->bytevector
222 '(255 255 255 255 255 255 255 255
223 255 255 255 255 255 255 255 253))))
224 (and (equal? (bytevector-s16-ref b 14 (endianness little))
226 (equal? (bytevector-s16-ref b 14 (endianness big))
229 (pass-if "bytevector-s16-ref [unaligned]"
230 (let ((b (u8-list->bytevector '(#xff #xf0 #xff))))
231 (equal? (bytevector-s16-ref b 1 (endianness little))
234 (pass-if "bytevector-{u16,s16}-ref"
235 (let ((b (make-bytevector 2)))
236 (bytevector-u16-set! b 0 44444 (endianness little))
237 (and (equal? (bytevector-u16-ref b 0 (endianness little))
239 (equal? (bytevector-s16-ref b 0 (endianness little))
242 (pass-if "bytevector-native-{u16,s16}-{ref,set!}"
243 (let ((b (make-bytevector 2)))
244 (bytevector-u16-native-set! b 0 44444)
245 (and (equal? (bytevector-u16-native-ref b 0)
247 (equal? (bytevector-s16-native-ref b 0)
250 (pass-if "bytevector-s16-{ref,set!} [unaligned]"
251 (let ((b (make-bytevector 3)))
252 (bytevector-s16-set! b 1 -77 (endianness little))
253 (equal? (bytevector-s16-ref b 1 (endianness little))
257 (with-test-prefix/c&e "2.6 Operations on 32-bit Integers"
259 (pass-if "bytevector-u32-ref"
260 (let ((b (u8-list->bytevector
261 '(255 255 255 255 255 255 255 255
262 255 255 255 255 255 255 255 253))))
263 (and (equal? (bytevector-u32-ref b 12 (endianness little))
265 (equal? (bytevector-u32-ref b 12 (endianness big))
268 (pass-if "bytevector-s32-ref"
269 (let ((b (u8-list->bytevector
270 '(255 255 255 255 255 255 255 255
271 255 255 255 255 255 255 255 253))))
272 (and (equal? (bytevector-s32-ref b 12 (endianness little))
274 (equal? (bytevector-s32-ref b 12 (endianness big))
277 (pass-if "bytevector-{u32,s32}-ref"
278 (let ((b (make-bytevector 4)))
279 (bytevector-u32-set! b 0 2222222222 (endianness little))
280 (and (equal? (bytevector-u32-ref b 0 (endianness little))
282 (equal? (bytevector-s32-ref b 0 (endianness little))
283 (- 2222222222 (expt 2 32))))))
285 (pass-if "bytevector-{u32,s32}-native-{ref,set!}"
286 (let ((b (make-bytevector 4)))
287 (bytevector-u32-native-set! b 0 2222222222)
288 (and (equal? (bytevector-u32-native-ref b 0)
290 (equal? (bytevector-s32-native-ref b 0)
291 (- 2222222222 (expt 2 32)))))))
294 (with-test-prefix/c&e "2.7 Operations on 64-bit Integers"
296 (pass-if "bytevector-u64-ref"
297 (let ((b (u8-list->bytevector
298 '(255 255 255 255 255 255 255 255
299 255 255 255 255 255 255 255 253))))
300 (and (equal? (bytevector-u64-ref b 8 (endianness little))
302 (equal? (bytevector-u64-ref b 8 (endianness big))
303 #xfffffffffffffffd))))
305 (pass-if "bytevector-s64-ref"
306 (let ((b (u8-list->bytevector
307 '(255 255 255 255 255 255 255 255
308 255 255 255 255 255 255 255 253))))
309 (and (equal? (bytevector-s64-ref b 8 (endianness little))
311 (equal? (bytevector-s64-ref b 8 (endianness big))
314 (pass-if "bytevector-{u64,s64}-ref"
315 (let ((b (make-bytevector 8))
316 (big 9333333333333333333))
317 (bytevector-u64-set! b 0 big (endianness little))
318 (and (equal? (bytevector-u64-ref b 0 (endianness little))
320 (equal? (bytevector-s64-ref b 0 (endianness little))
321 (- big (expt 2 64))))))
323 (pass-if "bytevector-{u64,s64}-native-{ref,set!}"
324 (let ((b (make-bytevector 8))
325 (big 9333333333333333333))
326 (bytevector-u64-native-set! b 0 big)
327 (and (equal? (bytevector-u64-native-ref b 0)
329 (equal? (bytevector-s64-native-ref b 0)
330 (- big (expt 2 64))))))
332 (pass-if "ref/set! with zero"
333 (let ((b (make-bytevector 8)))
334 (bytevector-s64-set! b 0 -1 (endianness big))
335 (bytevector-u64-set! b 0 0 (endianness big))
336 (= 0 (bytevector-u64-ref b 0 (endianness big))))))
339 (with-test-prefix/c&e "2.8 Operations on IEEE-754 Representations"
341 (pass-if "bytevector-ieee-single-native-{ref,set!}"
342 (let ((b (make-bytevector 4))
344 (bytevector-ieee-single-native-set! b 0 number)
345 (equal? (bytevector-ieee-single-native-ref b 0)
348 (pass-if "bytevector-ieee-single-{ref,set!}"
349 (let ((b (make-bytevector 8))
351 (bytevector-ieee-single-set! b 0 number (endianness little))
352 (bytevector-ieee-single-set! b 4 number (endianness big))
353 (equal? (bytevector-ieee-single-ref b 0 (endianness little))
354 (bytevector-ieee-single-ref b 4 (endianness big)))))
356 (pass-if "bytevector-ieee-single-{ref,set!} [unaligned]"
357 (let ((b (make-bytevector 9))
359 (bytevector-ieee-single-set! b 1 number (endianness little))
360 (bytevector-ieee-single-set! b 5 number (endianness big))
361 (equal? (bytevector-ieee-single-ref b 1 (endianness little))
362 (bytevector-ieee-single-ref b 5 (endianness big)))))
364 (pass-if "bytevector-ieee-double-native-{ref,set!}"
365 (let ((b (make-bytevector 8))
367 (bytevector-ieee-double-native-set! b 0 number)
368 (equal? (bytevector-ieee-double-native-ref b 0)
371 (pass-if "bytevector-ieee-double-{ref,set!}"
372 (let ((b (make-bytevector 16))
374 (bytevector-ieee-double-set! b 0 number (endianness little))
375 (bytevector-ieee-double-set! b 8 number (endianness big))
376 (equal? (bytevector-ieee-double-ref b 0 (endianness little))
377 (bytevector-ieee-double-ref b 8 (endianness big))))))
380 (define (with-locale locale thunk)
381 ;; Run THUNK under LOCALE.
382 (let ((original-locale (setlocale LC_ALL)))
385 (setlocale LC_ALL locale))
387 (throw 'unresolved)))
394 (setlocale LC_ALL original-locale)))))
396 (define (with-latin1-locale thunk)
397 ;; Try out several ISO-8859-1 locales and run THUNK under the one that
401 (string-append name ".ISO-8859-1"))
402 '("fr_FR" "es_ES" "en_GB" "en_US" "de_DE" "pt_PT")))
404 (let loop ((locales %locales))
409 (with-locale (car locales) thunk))
411 (loop (cdr locales)))))))
414 ;; Default to the C locale for the following tests.
415 (setlocale LC_ALL "C")
418 (with-test-prefix "2.9 Operations on Strings"
420 (pass-if "string->utf8"
421 (let* ((str "hello, world")
422 (utf8 (string->utf8 str)))
423 (and (bytevector? utf8)
424 (= (bytevector-length utf8)
426 (equal? (string->list str)
427 (map integer->char (bytevector->u8-list utf8))))))
429 (pass-if "string->utf8 [latin-1]"
432 (let* ((str "hé, ça va bien ?")
433 (utf8 (string->utf8 str)))
434 (and (bytevector? utf8)
435 (= (bytevector-length utf8)
436 (+ 2 (string-length str))))))))
438 (pass-if "string->utf16"
439 (let* ((str "hello, world")
440 (utf16 (string->utf16 str)))
441 (and (bytevector? utf16)
442 (= (bytevector-length utf16)
443 (* 2 (string-length str)))
444 (equal? (string->list str)
446 (bytevector->uint-list utf16
447 (endianness big) 2))))))
449 (pass-if "string->utf16 [little]"
450 (let* ((str "hello, world")
451 (utf16 (string->utf16 str (endianness little))))
452 (and (bytevector? utf16)
453 (= (bytevector-length utf16)
454 (* 2 (string-length str)))
455 (equal? (string->list str)
457 (bytevector->uint-list utf16
458 (endianness little) 2))))))
461 (pass-if "string->utf32"
462 (let* ((str "hello, world")
463 (utf32 (string->utf32 str)))
464 (and (bytevector? utf32)
465 (= (bytevector-length utf32)
466 (* 4 (string-length str)))
467 (equal? (string->list str)
469 (bytevector->uint-list utf32
470 (endianness big) 4))))))
472 (pass-if "string->utf32 [little]"
473 (let* ((str "hello, world")
474 (utf32 (string->utf32 str (endianness little))))
475 (and (bytevector? utf32)
476 (= (bytevector-length utf32)
477 (* 4 (string-length str)))
478 (equal? (string->list str)
480 (bytevector->uint-list utf32
481 (endianness little) 4))))))
483 (pass-if "utf8->string"
484 (let* ((utf8 (u8-list->bytevector (map char->integer
485 (string->list "hello, world"))))
486 (str (utf8->string utf8)))
488 (= (string-length str)
489 (bytevector-length utf8))
490 (equal? (string->list str)
491 (map integer->char (bytevector->u8-list utf8))))))
493 (pass-if "utf8->string [latin-1]"
496 (let* ((utf8 (string->utf8 "hé, ça va bien ?"))
497 (str (utf8->string utf8)))
499 (= (string-length str)
500 (- (bytevector-length utf8) 2)))))))
502 (pass-if "utf16->string"
503 (let* ((utf16 (uint-list->bytevector (map char->integer
504 (string->list "hello, world"))
506 (str (utf16->string utf16)))
508 (= (* 2 (string-length str))
509 (bytevector-length utf16))
510 (equal? (string->list str)
512 (bytevector->uint-list utf16 (endianness big)
515 (pass-if "utf16->string [little]"
516 (let* ((utf16 (uint-list->bytevector (map char->integer
517 (string->list "hello, world"))
518 (endianness little) 2))
519 (str (utf16->string utf16 (endianness little))))
521 (= (* 2 (string-length str))
522 (bytevector-length utf16))
523 (equal? (string->list str)
525 (bytevector->uint-list utf16 (endianness little)
527 (pass-if "utf32->string"
528 (let* ((utf32 (uint-list->bytevector (map char->integer
529 (string->list "hello, world"))
531 (str (utf32->string utf32)))
533 (= (* 4 (string-length str))
534 (bytevector-length utf32))
535 (equal? (string->list str)
537 (bytevector->uint-list utf32 (endianness big)
540 (pass-if "utf32->string [little]"
541 (let* ((utf32 (uint-list->bytevector (map char->integer
542 (string->list "hello, world"))
543 (endianness little) 4))
544 (str (utf32->string utf32 (endianness little))))
546 (= (* 4 (string-length str))
547 (bytevector-length utf32))
548 (equal? (string->list str)
550 (bytevector->uint-list utf32 (endianness little)
555 (with-test-prefix "Datum Syntax"
558 (equal? (with-input-from-string "#vu8()" read)
559 (make-bytevector 0)))
562 (equal? (with-input-from-string "#vu8(1 2 3 4 5)" read)
563 (u8-list->bytevector '(1 2 3 4 5))))
566 (equal? (with-input-from-string "#vu8(0 255 127 128)" read)
567 (u8-list->bytevector '(0 255 127 128))))
569 (pass-if "self-evaluating?"
570 (self-evaluating? (make-bytevector 1)))
572 (pass-if "self-evaluating"
573 (equal? (eval (with-input-from-string "#vu8(1 2 3 4 5)" read)
575 (u8-list->bytevector '(1 2 3 4 5))))
578 (equal? (eval (with-input-from-string "'#vu8(1 2 3 4 5)" read)
580 (u8-list->bytevector '(1 2 3 4 5))))
582 (pass-if "literal simple"
583 (equal? #vu8(1 2 3 4 5)
584 (u8-list->bytevector '(1 2 3 4 5))))
586 (pass-if "literal >127"
587 (equal? #vu8(0 255 127 128)
588 (u8-list->bytevector '(0 255 127 128))))
590 (pass-if "literal quoted"
591 (equal? '#vu8(1 2 3 4 5)
592 (u8-list->bytevector '(1 2 3 4 5))))
594 (pass-if-exception "incorrect prefix"
596 (with-input-from-string "#vi8(1 2 3)" read))
598 (pass-if-exception "extraneous space"
600 (with-input-from-string "#vu8 (1 2 3)" read))
602 (pass-if-exception "negative integers"
603 exception:wrong-type-arg
604 (with-input-from-string "#vu8(-1 -2 -3)" read))
606 (pass-if-exception "out-of-range integers"
607 exception:wrong-type-arg
608 (with-input-from-string "#vu8(0 256)" read)))
611 (with-test-prefix "Generalized Vectors"
613 (pass-if "generalized-vector?"
614 (generalized-vector? #vu8(1 2 3)))
616 (pass-if "generalized-vector-length"
618 (map generalized-vector-length
619 (map make-bytevector (iota 16)))))
621 (pass-if "generalized-vector-ref"
622 (let ((bv #vu8(255 127)))
623 (and (= 255 (generalized-vector-ref bv 0))
624 (= 127 (generalized-vector-ref bv 1)))))
626 (pass-if-exception "generalized-vector-ref [index out-of-range]"
627 exception:out-of-range
628 (let ((bv #vu8(1 2)))
629 (generalized-vector-ref bv 2)))
631 (pass-if "generalized-vector-set!"
632 (let ((bv (make-bytevector 2)))
633 (generalized-vector-set! bv 0 255)
634 (generalized-vector-set! bv 1 77)
636 (bytevector->u8-list bv))))
638 (pass-if-exception "generalized-vector-set! [index out-of-range]"
639 exception:out-of-range
640 (let ((bv (make-bytevector 2)))
641 (generalized-vector-set! bv 2 0)))
643 (pass-if-exception "generalized-vector-set! [value out-of-range]"
644 exception:out-of-range
645 (let ((bv (make-bytevector 2)))
646 (generalized-vector-set! bv 0 256)))
648 (pass-if "array-type"
649 (eq? 'vu8 (array-type #vu8())))
651 (pass-if "array-contents"
652 (let ((bv (u8-list->bytevector (iota 10))))
653 (eq? bv (array-contents bv))))
656 (let ((bv (u8-list->bytevector (iota 10))))
658 (map (lambda (i) (array-ref bv i))
661 (pass-if "array-set!"
662 (let ((bv (make-bytevector 10)))
663 (for-each (lambda (i)
667 (bytevector->u8-list bv))))
669 (pass-if "make-typed-array"
670 (let ((bv (make-typed-array 'vu8 77 33)))
671 (equal? bv (u8-list->bytevector (make-list 33 77)))))
673 (pass-if-exception "make-typed-array [out-of-range]"
674 exception:out-of-range
675 (make-typed-array 'vu8 256 77)))
678 (with-test-prefix "uniform-array->bytevector"
680 (pass-if "bytevector"
681 (let ((bv #vu8(0 1 128 255)))
682 (equal? bv (uniform-array->bytevector bv))))
684 (pass-if "empty bitvector"
685 (let ((bv (uniform-array->bytevector (make-bitvector 0))))
688 (pass-if "bitvector < 8"
689 (let ((bv (uniform-array->bytevector (make-bitvector 4 #t))))
690 (= (bytevector-length bv) 1)))
692 (pass-if "bitvector == 8"
693 (let ((bv (uniform-array->bytevector (make-bitvector 8 #t))))
694 (= (bytevector-length bv) 1)))
696 (pass-if "bitvector > 8"
697 (let ((bv (uniform-array->bytevector (make-bitvector 9 #t))))
698 (= (bytevector-length bv) 2))))