Optimize 'get-bytevector-some'; it may now read less than possible.
[bpt/guile.git] / test-suite / tests / r6rs-ports.test
CommitLineData
8aa47f26 1;;;; r6rs-ports.test --- R6RS I/O port tests. -*- coding: utf-8; -*-
1ee2c72e 2;;;;
d3a1a74c 3;;;; Copyright (C) 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
8aa47f26 4;;;; Ludovic Courtès
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5;;;;
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
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9;;;; version 3 of the License, or (at your option) any later version.
10;;;;
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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.
53befeb7 15;;;;
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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
19
20(define-module (test-io-ports)
d4b81637 21 #:use-module (test-suite lib)
b6a66c21 22 #:use-module (test-suite guile-test)
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23 #:use-module (srfi srfi-1)
24 #:use-module (srfi srfi-11)
25 #:use-module (rnrs io ports)
b6a66c21 26 #:use-module (rnrs io simple)
b1e76e8f 27 #:use-module (rnrs exceptions)
d4b81637 28 #:use-module (rnrs bytevectors))
1ee2c72e 29
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30(define-syntax pass-if-condition
31 (syntax-rules ()
32 ((_ name predicate body0 body ...)
33 (let ((cookie (list 'cookie)))
34 (pass-if name
35 (eq? cookie (guard (c ((predicate c) cookie))
36 body0 body ...)))))))
37
38(define (test-file)
39 (data-file-name "ports-test.tmp"))
40
41;; A input/output port that swallows all output, and produces just
42;; spaces on input. Reading and writing beyond `failure-position'
43;; produces `system-error' exceptions. Used for testing exception
44;; behavior.
45(define* (make-failing-port #:optional (failure-position 0))
46 (define (maybe-fail index errno)
47 (if (> index failure-position)
48 (scm-error 'system-error
49 'failing-port
50 "I/O beyond failure position" '()
51 (list errno))))
52 (let ((read-index 0)
53 (write-index 0))
54 (define (write-char chr)
55 (set! write-index (+ 1 write-index))
56 (maybe-fail write-index ENOSPC))
57 (make-soft-port
58 (vector write-char
59 (lambda (str) ;; write-string
60 (for-each write-char (string->list str)))
61 (lambda () #t) ;; flush-output
62 (lambda () ;; read-char
63 (set! read-index (+ read-index 1))
64 (maybe-fail read-index EIO)
65 #\space)
66 (lambda () #t)) ;; close-port
67 "rw")))
68
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69(define (call-with-bytevector-output-port/transcoded transcoder receiver)
70 (call-with-bytevector-output-port
71 (lambda (bv-port)
72 (call-with-port (transcoded-port bv-port transcoder)
73 receiver))))
74
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75\f
76(with-test-prefix "7.2.5 End-of-File Object"
77
78 (pass-if "eof-object"
79 (and (eqv? (eof-object) (eof-object))
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80 (eq? (eof-object) (eof-object))))
81
82 (pass-if "port-eof?"
83 (port-eof? (open-input-string ""))))
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84
85\f
86(with-test-prefix "7.2.8 Binary Input"
87
88 (pass-if "get-u8"
89 (let ((port (open-input-string "A")))
90 (and (= (char->integer #\A) (get-u8 port))
91 (eof-object? (get-u8 port)))))
92
93 (pass-if "lookahead-u8"
94 (let ((port (open-input-string "A")))
95 (and (= (char->integer #\A) (lookahead-u8 port))
8aa47f26 96 (= (char->integer #\A) (lookahead-u8 port))
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97 (= (char->integer #\A) (get-u8 port))
98 (eof-object? (get-u8 port)))))
99
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100 (pass-if "lookahead-u8 non-ASCII"
101 (let ((port (with-fluids ((%default-port-encoding "UTF-8"))
102 (open-input-string "λ"))))
103 (and (= 206 (lookahead-u8 port))
104 (= 206 (lookahead-u8 port))
105 (= 206 (get-u8 port))
106 (= 187 (lookahead-u8 port))
107 (= 187 (lookahead-u8 port))
108 (= 187 (get-u8 port))
109 (eof-object? (lookahead-u8 port))
110 (eof-object? (get-u8 port)))))
111
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112 (pass-if "lookahead-u8: result is unsigned"
113 ;; Bug #31081.
114 (let ((port (open-bytevector-input-port #vu8(255))))
115 (= (lookahead-u8 port) 255)))
116
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117 (pass-if "get-bytevector-n [short]"
118 (let* ((port (open-input-string "GNU Guile"))
119 (bv (get-bytevector-n port 4)))
120 (and (bytevector? bv)
121 (equal? (bytevector->u8-list bv)
122 (map char->integer (string->list "GNU "))))))
123
124 (pass-if "get-bytevector-n [long]"
125 (let* ((port (open-input-string "GNU Guile"))
126 (bv (get-bytevector-n port 256)))
127 (and (bytevector? bv)
128 (equal? (bytevector->u8-list bv)
129 (map char->integer (string->list "GNU Guile"))))))
130
131 (pass-if-exception "get-bytevector-n with closed port"
132 exception:wrong-type-arg
133
134 (let ((port (%make-void-port "r")))
135
136 (close-port port)
137 (get-bytevector-n port 3)))
138
139 (pass-if "get-bytevector-n! [short]"
140 (let* ((port (open-input-string "GNU Guile"))
141 (bv (make-bytevector 4))
142 (read (get-bytevector-n! port bv 0 4)))
143 (and (equal? read 4)
144 (equal? (bytevector->u8-list bv)
145 (map char->integer (string->list "GNU "))))))
146
147 (pass-if "get-bytevector-n! [long]"
148 (let* ((str "GNU Guile")
149 (port (open-input-string str))
150 (bv (make-bytevector 256))
151 (read (get-bytevector-n! port bv 0 256)))
152 (and (equal? read (string-length str))
153 (equal? (map (lambda (i)
154 (bytevector-u8-ref bv i))
155 (iota read))
156 (map char->integer (string->list str))))))
157
158 (pass-if "get-bytevector-some [simple]"
159 (let* ((str "GNU Guile")
160 (port (open-input-string str))
161 (bv (get-bytevector-some port)))
162 (and (bytevector? bv)
163 (equal? (bytevector->u8-list bv)
164 (map char->integer (string->list str))))))
165
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166 (pass-if "get-bytevector-all"
167 (let* ((str "GNU Guile")
168 (index 0)
169 (port (make-soft-port
170 (vector #f #f #f
171 (lambda ()
172 (if (>= index (string-length str))
173 (eof-object)
174 (let ((c (string-ref str index)))
175 (set! index (+ index 1))
176 c)))
177 (lambda () #t)
178 (let ((cont? #f))
179 (lambda ()
180 ;; Number of readily available octets: falls to
181 ;; zero after 4 octets have been read and then
182 ;; starts again.
183 (let ((a (if cont?
184 (- (string-length str) index)
185 (- 4 (modulo index 5)))))
186 (if (= 0 a) (set! cont? #t))
187 a))))
188 "r"))
189 (bv (get-bytevector-all port)))
190 (and (bytevector? bv)
191 (= index (string-length str))
192 (= (bytevector-length bv) (string-length str))
193 (equal? (bytevector->u8-list bv)
194 (map char->integer (string->list str)))))))
195
196\f
197(define (make-soft-output-port)
198 (let* ((bv (make-bytevector 1024))
199 (read-index 0)
200 (write-index 0)
201 (write-char (lambda (chr)
202 (bytevector-u8-set! bv write-index
203 (char->integer chr))
204 (set! write-index (+ 1 write-index)))))
205 (make-soft-port
206 (vector write-char
207 (lambda (str) ;; write-string
208 (for-each write-char (string->list str)))
209 (lambda () #t) ;; flush-output
210 (lambda () ;; read-char
211 (if (>= read-index (bytevector-length bv))
212 (eof-object)
213 (let ((c (bytevector-u8-ref bv read-index)))
214 (set! read-index (+ read-index 1))
215 (integer->char c))))
216 (lambda () #t)) ;; close-port
217 "rw")))
218
219(with-test-prefix "7.2.11 Binary Output"
220
221 (pass-if "put-u8"
222 (let ((port (make-soft-output-port)))
223 (put-u8 port 77)
224 (equal? (get-u8 port) 77)))
225
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226 ;; Note: The `put-bytevector' tests below require a Latin-1 locale so
227 ;; that the `scm_from_locale_stringn' call in `sf_write' will let all
228 ;; the bytes through, unmodified. This is hacky, but we can't use
229 ;; "custom binary output ports" here because they're only tested
230 ;; later.
231
1ee2c72e 232 (pass-if "put-bytevector [2 args]"
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233 (with-latin1-locale
234 (let ((port (make-soft-output-port))
235 (bv (make-bytevector 256)))
236 (put-bytevector port bv)
237 (equal? (bytevector->u8-list bv)
238 (bytevector->u8-list
239 (get-bytevector-n port (bytevector-length bv)))))))
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240
241 (pass-if "put-bytevector [3 args]"
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242 (with-latin1-locale
243 (let ((port (make-soft-output-port))
244 (bv (make-bytevector 256))
245 (start 10))
246 (put-bytevector port bv start)
247 (equal? (drop (bytevector->u8-list bv) start)
248 (bytevector->u8-list
249 (get-bytevector-n port (- (bytevector-length bv) start)))))))
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250
251 (pass-if "put-bytevector [4 args]"
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252 (with-latin1-locale
253 (let ((port (make-soft-output-port))
254 (bv (make-bytevector 256))
255 (start 10)
256 (count 77))
257 (put-bytevector port bv start count)
258 (equal? (take (drop (bytevector->u8-list bv) start) count)
259 (bytevector->u8-list
260 (get-bytevector-n port count))))))
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261
262 (pass-if-exception "put-bytevector with closed port"
263 exception:wrong-type-arg
264
265 (let* ((bv (make-bytevector 4))
266 (port (%make-void-port "w")))
267
268 (close-port port)
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269 (put-bytevector port bv)))
270
271 (pass-if "put-bytevector with UTF-16 string port"
272 (let* ((str "hello, world")
273 (bv (string->utf16 str)))
274 (equal? str
275 (with-fluids ((%default-port-encoding "UTF-16BE"))
276 (call-with-output-string
277 (lambda (port)
278 (put-bytevector port bv)))))))
279
ef7e4ba3 280 (pass-if "put-bytevector with wrong-encoding string port"
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281 (let* ((str "hello, world")
282 (bv (string->utf16 str)))
c62da8f8 283 (catch 'decoding-error
ef7e4ba3 284 (lambda ()
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285 (with-fluids ((%default-port-encoding "UTF-32")
286 (%default-port-conversion-strategy 'error))
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287 (call-with-output-string
288 (lambda (port)
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289 (put-bytevector port bv)))
290 #f)) ; fail if we reach this point
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291 (lambda (key subr message errno port)
292 (string? (strerror errno)))))))
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293
294\f
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295(define (test-input-file-opener open filename)
296 (let ((contents (string->utf8 "GNU λ")))
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297 ;; Create file
298 (call-with-output-file filename
299 (lambda (port) (put-bytevector port contents)))
300
3ae5a02f 301 (pass-if "opens binary input port with correct contents"
0687e826 302 (with-fluids ((%default-port-encoding "UTF-8"))
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303 (call-with-port (open-file-input-port filename)
304 (lambda (port)
305 (and (binary-port? port)
306 (input-port? port)
307 (bytevector=? contents (get-bytevector-all port))))))))
0687e826 308
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309 (delete-file filename))
310
311(with-test-prefix "7.2.7 Input Ports"
312
313 (with-test-prefix "open-file-input-port"
314 (test-input-file-opener open-file-input-port (test-file)))
315
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316 ;; This section appears here so that it can use the binary input
317 ;; primitives.
318
319 (pass-if "open-bytevector-input-port [1 arg]"
320 (let* ((str "Hello Port!")
321 (bv (u8-list->bytevector (map char->integer
322 (string->list str))))
323 (port (open-bytevector-input-port bv))
324 (read-to-string
325 (lambda (port)
326 (let loop ((chr (read-char port))
327 (result '()))
328 (if (eof-object? chr)
329 (apply string (reverse! result))
330 (loop (read-char port)
331 (cons chr result)))))))
332
333 (equal? (read-to-string port) str)))
334
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335 (pass-if "bytevector-input-port is binary"
336 (with-fluids ((%default-port-encoding "UTF-8"))
337 (binary-port? (open-bytevector-input-port #vu8(1 2 3)))))
338
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339 (pass-if-exception "bytevector-input-port is read-only"
340 exception:wrong-type-arg
341
342 (let* ((str "Hello Port!")
343 (bv (u8-list->bytevector (map char->integer
344 (string->list str))))
345 (port (open-bytevector-input-port bv #f)))
346
347 (write "hello" port)))
348
349 (pass-if "bytevector input port supports seeking"
350 (let* ((str "Hello Port!")
351 (bv (u8-list->bytevector (map char->integer
352 (string->list str))))
353 (port (open-bytevector-input-port bv #f)))
354
355 (and (port-has-port-position? port)
356 (= 0 (port-position port))
357 (port-has-set-port-position!? port)
358 (begin
359 (set-port-position! port 6)
360 (= 6 (port-position port)))
361 (bytevector=? (get-bytevector-all port)
362 (u8-list->bytevector
363 (map char->integer (string->list "Port!")))))))
364
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365 (pass-if "bytevector input port can seek to very end"
366 (let ((empty (open-bytevector-input-port '#vu8()))
367 (not-empty (open-bytevector-input-port '#vu8(1 2 3))))
368 (and (begin (set-port-position! empty (port-position empty))
369 (= 0 (port-position empty)))
370 (begin (get-bytevector-n not-empty 3)
371 (set-port-position! not-empty (port-position not-empty))
372 (= 3 (port-position not-empty))))))
373
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374 (pass-if-exception "make-custom-binary-input-port [wrong-num-args]"
375 exception:wrong-num-args
376
377 ;; Prior to Guile-R6RS-Libs 0.2, the last 3 arguments were wrongfully
378 ;; optional.
379 (make-custom-binary-input-port "port" (lambda args #t)))
380
381 (pass-if "make-custom-binary-input-port"
382 (let* ((source (make-bytevector 7777))
383 (read! (let ((pos 0)
384 (len (bytevector-length source)))
385 (lambda (bv start count)
386 (let ((amount (min count (- len pos))))
387 (if (> amount 0)
388 (bytevector-copy! source pos
389 bv start amount))
390 (set! pos (+ pos amount))
391 amount))))
392 (port (make-custom-binary-input-port "the port" read!
393 #f #f #f)))
394
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395 (and (binary-port? port)
396 (input-port? port)
397 (bytevector=? (get-bytevector-all port) source))))
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398
399 (pass-if "custom binary input port does not support `port-position'"
400 (let* ((str "Hello Port!")
401 (source (open-bytevector-input-port
402 (u8-list->bytevector
403 (map char->integer (string->list str)))))
404 (read! (lambda (bv start count)
405 (let ((r (get-bytevector-n! source bv start count)))
406 (if (eof-object? r)
407 0
408 r))))
409 (port (make-custom-binary-input-port "the port" read!
410 #f #f #f)))
411 (not (or (port-has-port-position? port)
412 (port-has-set-port-position!? port)))))
413
414 (pass-if "custom binary input port supports `port-position'"
415 (let* ((str "Hello Port!")
416 (source (open-bytevector-input-port
417 (u8-list->bytevector
418 (map char->integer (string->list str)))))
419 (read! (lambda (bv start count)
420 (let ((r (get-bytevector-n! source bv start count)))
421 (if (eof-object? r)
422 0
423 r))))
424 (get-pos (lambda ()
425 (port-position source)))
426 (set-pos! (lambda (pos)
427 (set-port-position! source pos)))
428 (port (make-custom-binary-input-port "the port" read!
429 get-pos set-pos! #f)))
430
431 (and (port-has-port-position? port)
432 (= 0 (port-position port))
433 (port-has-set-port-position!? port)
434 (begin
435 (set-port-position! port 6)
436 (= 6 (port-position port)))
437 (bytevector=? (get-bytevector-all port)
438 (u8-list->bytevector
439 (map char->integer (string->list "Port!")))))))
440
441 (pass-if "custom binary input port `close-proc' is called"
442 (let* ((closed? #f)
443 (read! (lambda (bv start count) 0))
444 (get-pos (lambda () 0))
445 (set-pos! (lambda (pos) #f))
446 (close! (lambda () (set! closed? #t)))
447 (port (make-custom-binary-input-port "the port" read!
448 get-pos set-pos!
449 close!)))
450
451 (close-port port)
4574ec21 452 (gc) ; Test for marking a closed port.
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453 closed?))
454
455 (pass-if "standard-input-port is binary"
456 (with-fluids ((%default-port-encoding "UTF-8"))
457 (binary-port? (standard-input-port)))))
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458
459\f
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460(define (test-output-file-opener open filename)
461 (with-fluids ((%default-port-encoding "UTF-8"))
462 (pass-if "opens binary output port"
463 (call-with-port (open filename)
464 (lambda (port)
465 (put-bytevector port '#vu8(1 2 3))
466 (and (binary-port? port)
467 (output-port? port))))))
468
469 (pass-if-condition "exception: already-exists"
470 i/o-file-already-exists-error?
471 (open filename))
472
473 (pass-if "no-fail no-truncate"
474 (and
475 (call-with-port (open filename (file-options no-fail no-truncate))
476 (lambda (port)
477 (= 0 (port-position port))))
478 (= 3 (stat:size (stat filename)))))
479
480 (pass-if "no-fail"
481 (and
482 (call-with-port (open filename (file-options no-fail))
483 binary-port?)
484 (= 0 (stat:size (stat filename)))))
b6a66c21 485
3ae5a02f 486 (delete-file filename)
b6a66c21 487
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488 (pass-if-condition "exception: does-not-exist"
489 i/o-file-does-not-exist-error?
490 (open filename (file-options no-create))))
491
492(with-test-prefix "8.2.10 Output ports"
493
494 (with-test-prefix "open-file-output-port"
495 (test-output-file-opener open-file-output-port (test-file)))
b6a66c21 496
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497 (pass-if "open-bytevector-output-port"
498 (let-values (((port get-content)
499 (open-bytevector-output-port #f)))
500 (let ((source (make-bytevector 7777)))
501 (put-bytevector port source)
502 (and (bytevector=? (get-content) source)
503 (bytevector=? (get-content) (make-bytevector 0))))))
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504
505 (pass-if "bytevector-output-port is binary"
506 (binary-port? (open-bytevector-output-port)))
507
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508 (pass-if "open-bytevector-output-port [extract after close]"
509 (let-values (((port get-content)
510 (open-bytevector-output-port)))
511 (let ((source (make-bytevector 12345 #xFE)))
512 (put-bytevector port source)
513 (close-port port)
514 (bytevector=? (get-content) source))))
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515
516 (pass-if "open-bytevector-output-port [put-u8]"
517 (let-values (((port get-content)
518 (open-bytevector-output-port)))
519 (put-u8 port 77)
520 (and (bytevector=? (get-content) (make-bytevector 1 77))
521 (bytevector=? (get-content) (make-bytevector 0)))))
522
523 (pass-if "open-bytevector-output-port [display]"
524 (let-values (((port get-content)
525 (open-bytevector-output-port)))
526 (display "hello" port)
527 (and (bytevector=? (get-content) (string->utf8 "hello"))
528 (bytevector=? (get-content) (make-bytevector 0)))))
529
530 (pass-if "bytevector output port supports `port-position'"
531 (let-values (((port get-content)
532 (open-bytevector-output-port)))
533 (let ((source (make-bytevector 7777))
534 (overwrite (make-bytevector 33)))
535 (and (port-has-port-position? port)
536 (port-has-set-port-position!? port)
537 (begin
538 (put-bytevector port source)
539 (= (bytevector-length source)
540 (port-position port)))
541 (begin
542 (set-port-position! port 10)
543 (= 10 (port-position port)))
544 (begin
545 (put-bytevector port overwrite)
546 (bytevector-copy! overwrite 0 source 10
547 (bytevector-length overwrite))
548 (= (port-position port)
549 (+ 10 (bytevector-length overwrite))))
550 (bytevector=? (get-content) source)
551 (bytevector=? (get-content) (make-bytevector 0))))))
552
96128014 553 (pass-if "make-custom-binary-output-port"
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554 (let ((port (make-custom-binary-output-port "cbop"
555 (lambda (x y z) 0)
556 #f #f #f)))
557 (and (output-port? port)
558 (binary-port? port)
559 (not (port-has-port-position? port))
560 (not (port-has-set-port-position!? port)))))
561
562 (pass-if "make-custom-binary-output-port [partial writes]"
563 (let* ((source (uint-list->bytevector (iota 333)
564 (native-endianness) 2))
565 (sink (make-bytevector (bytevector-length source)))
566 (sink-pos 0)
567 (eof? #f)
568 (write! (lambda (bv start count)
569 (if (= 0 count)
570 (begin
571 (set! eof? #t)
572 0)
573 (let ((u8 (bytevector-u8-ref bv start)))
574 ;; Get one byte at a time.
575 (bytevector-u8-set! sink sink-pos u8)
576 (set! sink-pos (+ 1 sink-pos))
577 1))))
578 (port (make-custom-binary-output-port "cbop" write!
579 #f #f #f)))
580 (put-bytevector port source)
581 (and (= sink-pos (bytevector-length source))
582 (not eof?)
583 (bytevector=? sink source))))
584
585 (pass-if "make-custom-binary-output-port [full writes]"
586 (let* ((source (uint-list->bytevector (iota 333)
587 (native-endianness) 2))
588 (sink (make-bytevector (bytevector-length source)))
589 (sink-pos 0)
590 (eof? #f)
591 (write! (lambda (bv start count)
592 (if (= 0 count)
593 (begin
594 (set! eof? #t)
595 0)
596 (begin
597 (bytevector-copy! bv start
598 sink sink-pos
599 count)
600 (set! sink-pos (+ sink-pos count))
601 count))))
602 (port (make-custom-binary-output-port "cbop" write!
603 #f #f #f)))
604 (put-bytevector port source)
605 (and (= sink-pos (bytevector-length source))
606 (not eof?)
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607 (bytevector=? sink source))))
608
609 (pass-if "standard-output-port is binary"
610 (with-fluids ((%default-port-encoding "UTF-8"))
611 (binary-port? (standard-output-port))))
612
613 (pass-if "standard-error-port is binary"
614 (with-fluids ((%default-port-encoding "UTF-8"))
615 (binary-port? (standard-error-port)))))
1ee2c72e 616
d4b81637 617\f
1044537d 618(with-test-prefix "8.2.6 Input and output ports"
d4b81637 619
1044537d 620 (pass-if "transcoded-port [output]"
8aa47f26 621 (let ((s "Hello\nÄÖÜ"))
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622 (bytevector=?
623 (string->utf8 s)
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624 (call-with-bytevector-output-port/transcoded (make-transcoder (utf-8-codec))
625 (lambda (utf8-port)
626 (put-string utf8-port s))))))
d4b81637 627
1044537d 628 (pass-if "transcoded-port [input]"
8aa47f26 629 (let ((s "Hello\nÄÖÜ"))
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630 (string=?
631 s
632 (get-string-all
633 (transcoded-port (open-bytevector-input-port (string->utf8 s))
634 (make-transcoder (utf-8-codec)))))))
d4b81637 635
1044537d 636 (pass-if "transcoded-port [input line]"
8aa47f26 637 (string=? "ÄÖÜ"
1044537d 638 (get-line (transcoded-port
8aa47f26 639 (open-bytevector-input-port (string->utf8 "ÄÖÜ\nFooBar"))
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640 (make-transcoder (utf-8-codec))))))
641
642 (pass-if "transcoded-port [error handling mode = raise]"
643 (let* ((t (make-transcoder (utf-8-codec) (native-eol-style)
644 (error-handling-mode raise)))
645 (b (open-bytevector-input-port #vu8(255 2 1)))
646 (tp (transcoded-port b t)))
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647 (guard (c ((i/o-decoding-error? c)
648 (eq? (i/o-error-port c) tp)))
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649 (get-line tp)
650 #f))) ; fail if we reach this point
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651
652 (pass-if "transcoded-port [error handling mode = replace]"
653 (let* ((t (make-transcoder (utf-8-codec) (native-eol-style)
654 (error-handling-mode replace)))
655 (b (open-bytevector-input-port #vu8(255 1 2 3 103 110 117)))
656 (tp (transcoded-port b t)))
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657 (string-suffix? "gnu" (get-line tp))))
658
659 (pass-if "transcoded-port, output [error handling mode = raise]"
660 (let-values (((p get)
661 (open-bytevector-output-port)))
662 (let* ((t (make-transcoder (latin-1-codec) (native-eol-style)
663 (error-handling-mode raise)))
664 (tp (transcoded-port p t)))
665 (guard (c ((i/o-encoding-error? c)
666 (and (eq? (i/o-error-port c) tp)
667 (char=? (i/o-encoding-error-char c) #\λ)
668 (bytevector=? (get) (string->utf8 "The letter ")))))
669 (put-string tp "The letter λ cannot be represented in Latin-1.")
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670 #f))))
671
672 (pass-if "port-transcoder [binary port]"
673 (not (port-transcoder (open-bytevector-input-port #vu8()))))
674
675 (pass-if "port-transcoder [transcoded port]"
676 (let* ((p (transcoded-port (open-bytevector-input-port (string->utf8 "foo"))
677 (make-transcoder (utf-8-codec))))
678 (t (port-transcoder p)))
679 (and t
680 (transcoder-codec t)
681 (eq? (native-eol-style)
682 (transcoder-eol-style t))
683 (eq? (error-handling-mode replace)
684 (transcoder-error-handling-mode t))))))
1044537d 685
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686(with-test-prefix "8.2.9 Textual input"
687
688 (pass-if "get-string-n [short]"
689 (let ((port (open-input-string "GNU Guile")))
690 (string=? "GNU " (get-string-n port 4))))
691 (pass-if "get-string-n [long]"
692 (let ((port (open-input-string "GNU Guile")))
693 (string=? "GNU Guile" (get-string-n port 256))))
694 (pass-if "get-string-n [eof]"
695 (let ((port (open-input-string "")))
696 (eof-object? (get-string-n port 4))))
697
698 (pass-if "get-string-n! [short]"
699 (let ((port (open-input-string "GNU Guile"))
700 (s (string-copy "Isn't XXX great?")))
701 (and (= 3 (get-string-n! port s 6 3))
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702 (string=? s "Isn't GNU great?"))))
703
704 (with-test-prefix "read error"
705 (pass-if-condition "get-char" i/o-read-error?
706 (get-char (make-failing-port)))
707 (pass-if-condition "lookahead-char" i/o-read-error?
708 (lookahead-char (make-failing-port)))
709 ;; FIXME: these are not yet exception-correct
710 #|
711 (pass-if-condition "get-string-n" i/o-read-error?
712 (get-string-n (make-failing-port) 5))
713 (pass-if-condition "get-string-n!" i/o-read-error?
714 (get-string-n! (make-failing-port) (make-string 5) 0 5))
715 |#
716 (pass-if-condition "get-string-all" i/o-read-error?
717 (get-string-all (make-failing-port 100)))
718 (pass-if-condition "get-line" i/o-read-error?
719 (get-line (make-failing-port)))
720 (pass-if-condition "get-datum" i/o-read-error?
721 (get-datum (make-failing-port)))))
722
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723(define (encoding-error-predicate char)
724 (lambda (c)
725 (and (i/o-encoding-error? c)
726 (char=? char (i/o-encoding-error-char c)))))
727
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728(with-test-prefix "8.2.12 Textual Output"
729
730 (with-test-prefix "write error"
731 (pass-if-condition "put-char" i/o-write-error?
732 (put-char (make-failing-port) #\G))
733 (pass-if-condition "put-string" i/o-write-error?
734 (put-string (make-failing-port) "Hello World!"))
735 (pass-if-condition "put-datum" i/o-write-error?
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736 (put-datum (make-failing-port) '(hello world!))))
737 (with-test-prefix "encoding error"
738 (pass-if-condition "put-char" (encoding-error-predicate #\λ)
739 (call-with-bytevector-output-port/transcoded
740 (make-transcoder (latin-1-codec)
741 (native-eol-style)
742 (error-handling-mode raise))
743 (lambda (port)
744 (put-char port #\λ))))
745 (pass-if-condition "put-string" (encoding-error-predicate #\λ)
746 (call-with-bytevector-output-port/transcoded
747 (make-transcoder (latin-1-codec)
748 (native-eol-style)
749 (error-handling-mode raise))
750 (lambda (port)
751 (put-string port "FooλBar"))))))
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752
753(with-test-prefix "8.3 Simple I/O"
754 (with-test-prefix "read error"
755 (pass-if-condition "read-char" i/o-read-error?
756 (read-char (make-failing-port)))
757 (pass-if-condition "peek-char" i/o-read-error?
758 (peek-char (make-failing-port)))
759 (pass-if-condition "read" i/o-read-error?
760 (read (make-failing-port))))
761 (with-test-prefix "write error"
762 (pass-if-condition "display" i/o-write-error?
763 (display "Hi there!" (make-failing-port)))
764 (pass-if-condition "write" i/o-write-error?
765 (write '(hi there!) (make-failing-port)))
766 (pass-if-condition "write-char" i/o-write-error?
767 (write-char #\G (make-failing-port)))
768 (pass-if-condition "newline" i/o-write-error?
769 (newline (make-failing-port))))
770 (let ((filename (test-file)))
771 ;; ensure the test file exists
772 (call-with-output-file filename
773 (lambda (port) (write "foo" port)))
774 (pass-if "call-with-input-file [port is textual]"
775 (call-with-input-file filename textual-port?))
776 (pass-if-condition "call-with-input-file [exception: not-found]"
777 i/o-file-does-not-exist-error?
778 (call-with-input-file ",this-is-highly-unlikely-to-exist!"
779 values))
780 (pass-if-condition "call-with-output-file [exception: already-exists]"
781 i/o-file-already-exists-error?
782 (call-with-output-file filename
783 values))
784 (delete-file filename)))
a6c377f7 785
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786(with-test-prefix "8.2.13 Input/output ports"
787 (with-test-prefix "open-file-input/output-port [output]"
788 (test-output-file-opener open-file-input/output-port (test-file)))
789 (with-test-prefix "open-file-input/output-port [input]"
790 (test-input-file-opener open-file-input/output-port (test-file))))
791
1ee2c72e 792;;; Local Variables:
1ee2c72e 793;;; mode: scheme
b1e76e8f 794;;; eval: (put 'guard 'scheme-indent-function 1)
1ee2c72e 795;;; End: