1 ;;;; ports.test --- Guile I/O ports. -*- coding: utf-8; mode: scheme; -*-
2 ;;;; Jim Blandy <jimb@red-bean.com> --- May 1999
4 ;;;; Copyright (C) 1999, 2001, 2004, 2006, 2007, 2009, 2010,
5 ;;;; 2011 Free Software Foundation, Inc.
7 ;;;; This library is free software; you can redistribute it and/or
8 ;;;; modify it under the terms of the GNU Lesser General Public
9 ;;;; License as published by the Free Software Foundation; either
10 ;;;; version 3 of the License, or (at your option) any later version.
12 ;;;; This library is distributed in the hope that it will be useful,
13 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
14 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 ;;;; Lesser General Public License for more details.
17 ;;;; You should have received a copy of the GNU Lesser General Public
18 ;;;; License along with this library; if not, write to the Free Software
19 ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 (define-module (test-suite test-ports)
22 #:use-module (test-suite lib)
23 #:use-module (test-suite guile-test)
24 #:use-module (ice-9 popen)
25 #:use-module (ice-9 rdelim)
26 #:use-module (rnrs bytevectors)
27 #:use-module ((rnrs io ports) #:select (open-bytevector-input-port)))
29 (define (display-line . args)
30 (for-each display args)
34 (data-file-name "ports-test.tmp"))
37 ;;;; Some general utilities for testing ports.
39 ;; Make sure we are set up for 8-bit Latin-1 data.
40 (fluid-set! %default-port-encoding "ISO-8859-1")
42 (set-port-encoding! p (fluid-ref %default-port-encoding)))
43 (list (current-input-port) (current-output-port)
44 (current-error-port)))
46 ;;; Read from PORT until EOF, and return the result as a string.
47 (define (read-all port)
48 (let loop ((chars '()))
49 (let ((char (read-char port)))
50 (if (eof-object? char)
51 (list->string (reverse! chars))
52 (loop (cons char chars))))))
54 (define (read-file filename)
55 (let* ((port (open-input-file filename))
56 (string (read-all port)))
61 ;;;; Normal file ports.
63 ;;; Write out an s-expression, and read it back.
64 (let ((string '("From fairest creatures we desire increase,"
65 "That thereby beauty's rose might never die,"))
66 (filename (test-file)))
67 (let ((port (open-output-file filename)))
70 (let ((port (open-input-file filename)))
71 (let ((in-string (read port)))
72 (pass-if "file: write and read back list of strings"
73 (equal? string in-string)))
75 (delete-file filename))
77 ;;; Write out a string, and read it back a character at a time.
78 (let ((string "This is a test string\nwith no newline at the end")
79 (filename (test-file)))
80 (let ((port (open-output-file filename)))
83 (let ((in-string (read-file filename)))
84 (pass-if "file: write and read back characters"
85 (equal? string in-string)))
86 (delete-file filename))
88 ;;; Buffered input/output port with seeking.
89 (let* ((filename (test-file))
90 (port (open-file filename "w+")))
91 (display "J'Accuse" port)
92 (seek port -1 SEEK_CUR)
93 (pass-if "file: r/w 1"
94 (char=? (read-char port) #\e))
95 (pass-if "file: r/w 2"
96 (eof-object? (read-char port)))
97 (seek port -1 SEEK_CUR)
99 (seek port 7 SEEK_SET)
100 (pass-if "file: r/w 3"
101 (char=? (read-char port) #\x))
102 (seek port -2 SEEK_END)
103 (pass-if "file: r/w 4"
104 (char=? (read-char port) #\s))
106 (delete-file filename))
108 ;;; Unbuffered input/output port with seeking.
109 (let* ((filename (test-file))
110 (port (open-file filename "w+0")))
111 (display "J'Accuse" port)
112 (seek port -1 SEEK_CUR)
113 (pass-if "file: ub r/w 1"
114 (char=? (read-char port) #\e))
115 (pass-if "file: ub r/w 2"
116 (eof-object? (read-char port)))
117 (seek port -1 SEEK_CUR)
118 (write-char #\x port)
119 (seek port 7 SEEK_SET)
120 (pass-if "file: ub r/w 3"
121 (char=? (read-char port) #\x))
122 (seek port -2 SEEK_END)
123 (pass-if "file: ub r/w 4"
124 (char=? (read-char port) #\s))
126 (delete-file filename))
128 ;;; Buffered output-only and input-only ports with seeking.
129 (let* ((filename (test-file))
130 (port (open-output-file filename)))
131 (display "J'Accuse" port)
132 (pass-if "file: out tell"
133 (= (seek port 0 SEEK_CUR) 8))
134 (seek port -1 SEEK_CUR)
135 (write-char #\x port)
137 (let ((iport (open-input-file filename)))
138 (pass-if "file: in tell 0"
139 (= (seek iport 0 SEEK_CUR) 0))
141 (pass-if "file: in tell 1"
142 (= (seek iport 0 SEEK_CUR) 1))
143 (unread-char #\z iport)
144 (pass-if "file: in tell 0 after unread"
145 (= (seek iport 0 SEEK_CUR) 0))
146 (pass-if "file: unread char still there"
147 (char=? (read-char iport) #\z))
148 (seek iport 7 SEEK_SET)
149 (pass-if "file: in last char"
150 (char=? (read-char iport) #\x))
152 (delete-file filename))
154 ;;; unusual characters.
155 (let* ((filename (test-file))
156 (port (open-output-file filename)))
157 (display (string #\nul (integer->char 255) (integer->char 128)
160 (let* ((port (open-input-file filename))
161 (line (read-line port)))
162 (pass-if "file: read back NUL 1"
163 (char=? (string-ref line 0) #\nul))
164 (pass-if "file: read back 255"
165 (char=? (string-ref line 1) (integer->char 255)))
166 (pass-if "file: read back 128"
167 (char=? (string-ref line 2) (integer->char 128)))
168 (pass-if "file: read back NUL 2"
169 (char=? (string-ref line 3) #\nul))
171 (eof-object? (read-char port)))
173 (delete-file filename))
175 ;;; line buffering mode.
176 (let* ((filename (test-file))
177 (port (open-file filename "wl"))
178 (test-string "one line more or less"))
179 (write-line test-string port)
180 (let* ((in-port (open-input-file filename))
181 (line (read-line in-port)))
184 (pass-if "file: line buffering"
185 (string=? line test-string)))
186 (delete-file filename))
188 ;;; read-line should use the port encoding (not the locale encoding).
189 (let ((str "ĉu bone?"))
191 (let* ((filename (test-file))
192 (port (open-file filename "wl")))
193 (set-port-encoding! port "UTF-8")
194 (write-line str port)
195 (let ((in-port (open-input-file filename)))
196 (set-port-encoding! in-port "UTF-8")
197 (let ((line (read-line in-port)))
200 (pass-if "file: read-line honors port encoding"
201 (string=? line str))))
202 (delete-file filename))))
204 ;;; binary mode ignores port encoding
205 (pass-if "file: binary mode ignores port encoding"
206 (with-fluids ((%default-port-encoding "UTF-8"))
207 (let* ((filename (test-file))
208 (port (open-file filename "w"))
213 (uniform-vector->list
214 (string->utf8 test-string))))))
215 (write-line test-string port)
217 (let* ((in-port (open-file filename "rb"))
218 (line (read-line in-port)))
220 (delete-file filename)
221 (string=? line binary-test-string)))))
223 ;;; binary mode ignores file coding declaration
224 (pass-if "file: binary mode ignores file coding declaration"
225 (with-fluids ((%default-port-encoding "UTF-8"))
226 (let* ((filename (test-file))
227 (port (open-file filename "w"))
232 (uniform-vector->list
233 (string->utf8 test-string))))))
234 (write-line ";; coding: utf-8" port)
235 (write-line test-string port)
237 (let* ((in-port (open-file filename "rb"))
238 (line1 (read-line in-port))
239 (line2 (read-line in-port)))
241 (delete-file filename)
242 (string=? line2 binary-test-string)))))
244 ;; open-file honors file coding declarations
245 (pass-if "file: open-file honors coding declarations"
246 (with-fluids ((%default-port-encoding "UTF-8"))
247 (let* ((filename (test-file))
248 (port (open-output-file filename))
249 (test-string "€100"))
250 (set-port-encoding! port "ISO-8859-15")
251 (write-line ";; coding: iso-8859-15" port)
252 (write-line test-string port)
254 (let* ((in-port (open-input-file filename))
255 (line1 (read-line in-port))
256 (line2 (read-line in-port)))
258 (delete-file filename)
259 (string=? line2 test-string)))))
261 ;;; ungetting characters and strings.
262 (with-input-from-string "walk on the moon\nmoon"
265 (unread-char #\a (current-input-port))
266 (pass-if "unread-char"
267 (char=? (read-char) #\a))
269 (let ((replacenoid "chicken enchilada"))
270 (unread-char #\newline (current-input-port))
271 (unread-string replacenoid (current-input-port))
272 (pass-if "unread-string"
273 (string=? (read-line) replacenoid)))
274 (pass-if "unread residue"
275 (string=? (read-line) "moon"))))
277 ;;; non-blocking mode on a port. create a pipe and set O_NONBLOCK on
278 ;;; the reading end. try to read a byte: should get EAGAIN or
279 ;;; EWOULDBLOCK error.
282 (fcntl r F_SETFL (logior (fcntl r F_GETFL) O_NONBLOCK))
283 (pass-if "non-blocking-I/O"
285 (lambda () (read-char r) #f)
287 (and (eq? key 'system-error)
288 (let ((errno (car (list-ref args 3))))
290 (= errno EWOULDBLOCK))))))))
293 ;;;; Pipe (popen) ports.
295 ;;; Run a command, and read its output.
296 (let* ((pipe (open-pipe "echo 'Howdy there, partner!'" "r"))
297 (in-string (read-all pipe)))
299 (pass-if "pipe: read"
300 (equal? in-string "Howdy there, partner!\n")))
302 ;;; Run a command, send some output to it, and see if it worked.
303 (let* ((filename (test-file))
304 (pipe (open-pipe (string-append "grep Mommy > " filename) "w")))
305 (display "Now Jimmy lives on a mushroom cloud\n" pipe)
306 (display "Mommy, why does everybody have a bomb?\n" pipe)
308 (let ((in-string (read-file filename)))
309 (pass-if "pipe: write"
310 (equal? in-string "Mommy, why does everybody have a bomb?\n")))
311 (delete-file filename))
314 ;;;; Void ports. These are so trivial we don't test them.
319 (with-test-prefix "string ports"
321 ;; Write text to a string port.
322 (let* ((string "Howdy there, partner!")
323 (in-string (call-with-output-string
325 (display string port)
327 (pass-if "display text"
328 (equal? in-string (string-append string "\n"))))
330 ;; Write an s-expression to a string port.
331 (let* ((sexpr '("more utterly random text" 1729 #(a vector) 3.1415926))
333 (call-with-input-string (call-with-output-string
337 (pass-if "write/read sexpr"
338 (equal? in-sexpr sexpr)))
340 ;; seeking and unreading from an input string.
341 (let ((text "that text didn't look random to me"))
342 (call-with-input-string text
344 (pass-if "input tell 0"
345 (= (seek p 0 SEEK_CUR) 0))
347 (pass-if "input tell 1"
348 (= (seek p 0 SEEK_CUR) 1))
350 (pass-if "input tell back to 0"
351 (= (seek p 0 SEEK_CUR) 0))
352 (pass-if "input ungetted char"
353 (char=? (read-char p) #\x))
355 (pass-if "input seek to end"
356 (= (seek p 0 SEEK_CUR)
357 (string-length text)))
359 (pass-if "input seek to beginning"
360 (= (seek p 0 SEEK_SET) 0))
361 (pass-if "input reread first char"
362 (char=? (read-char p)
363 (string-ref text 0))))))
365 ;; seeking an output string.
366 (let* ((text (string-copy "123456789"))
367 (len (string-length text))
368 (result (call-with-output-string
370 (pass-if "output tell 0"
371 (= (seek p 0 SEEK_CUR) 0))
373 (pass-if "output tell end"
374 (= (seek p 0 SEEK_CUR) len))
375 (pass-if "output seek to beginning"
376 (= (seek p 0 SEEK_SET) 0))
379 (pass-if "output seek to last char"
380 (= (seek p 0 SEEK_CUR)
382 (write-char #\b p)))))
383 (string-set! text 0 #\a)
384 (string-set! text (- len 1) #\b)
385 (pass-if "output check"
386 (string=? text result)))
388 (pass-if "%default-port-encoding is honored"
389 (let ((encodings '("UTF-8" "UTF-16" "ISO-8859-1" "ISO-8859-3")))
390 (equal? (map (lambda (e)
391 (with-fluids ((%default-port-encoding e))
392 (call-with-output-string
394 (and (string=? e (port-encoding p))
395 (display (port-encoding p) p))))))
399 (pass-if "suitable encoding [latin-1]"
400 (let ((str "hello, world"))
401 (with-fluids ((%default-port-encoding "ISO-8859-1"))
403 (with-output-to-string
407 (pass-if "suitable encoding [latin-3]"
408 (let ((str "ĉu bone?"))
409 (with-fluids ((%default-port-encoding "ISO-8859-3"))
411 (with-output-to-string
415 (pass-if "wrong encoding"
416 (let ((str "ĉu bone?"))
417 (catch 'encoding-error
419 ;; Latin-1 cannot represent ‘ĉ’.
420 (with-fluids ((%default-port-encoding "ISO-8859-1"))
421 (with-output-to-string
424 (lambda (key subr message errno port chr)
426 (string? (strerror errno)))))))
428 (pass-if "wrong encoding, substitute"
429 (let ((str "ĉu bone?"))
430 (with-fluids ((%default-port-encoding "ISO-8859-1"))
431 (string=? (with-output-to-string
433 (set-port-conversion-strategy! (current-output-port)
438 (pass-if "wrong encoding, escape"
439 (let ((str "ĉu bone?"))
440 (with-fluids ((%default-port-encoding "ISO-8859-1"))
441 (string=? (with-output-to-string
443 (set-port-conversion-strategy! (current-output-port)
448 (pass-if "peek-char [latin-1]"
449 (let ((p (with-fluids ((%default-port-encoding #f))
450 (open-input-string "hello, world"))))
451 (and (char=? (peek-char p) #\h)
452 (char=? (peek-char p) #\h)
453 (char=? (peek-char p) #\h)
455 (= (port-column p) 0))))
457 (pass-if "peek-char [utf-8]"
458 (let ((p (with-fluids ((%default-port-encoding "UTF-8"))
459 (open-input-string "안녕하세요"))))
460 (and (char=? (peek-char p) #\안)
461 (char=? (peek-char p) #\안)
462 (char=? (peek-char p) #\안)
464 (= (port-column p) 0))))
466 (pass-if "peek-char [utf-16]"
467 (let ((p (with-fluids ((%default-port-encoding "UTF-16BE"))
468 (open-input-string "안녕하세요"))))
469 (and (char=? (peek-char p) #\안)
470 (char=? (peek-char p) #\안)
471 (char=? (peek-char p) #\안)
473 (= (port-column p) 0))))
475 ;; Mini DSL to test decoding error handling.
476 (letrec-syntax ((decoding-error?
479 (catch 'decoding-error
483 (lambda (key subr message errno p)
485 (not (= 0 errno))))))))
487 (syntax-rules (-> error eof)
488 ((_ port (proc -> error))
489 (decoding-error? port (proc port)))
490 ((_ port (proc -> eof))
491 (eof-object? (proc port)))
492 ((_ port (proc -> char))
493 (eq? (proc port) char))))
497 (and (make-check port check) ...))))
499 (syntax-rules (tests)
500 ((_ sequence encoding strategy (tests checks ...))
501 (pass-if (format #f "test-decoding-error: ~s ~s ~s ~s"
503 'sequence encoding strategy)
504 (let ((p (open-bytevector-input-port
505 (u8-list->bytevector 'sequence))))
506 (set-port-encoding! p encoding)
507 (set-port-conversion-strategy! p strategy)
508 (make-checks p checks ...)))))))
510 (test-decoding-error (255 65 66 67) "UTF-8" 'error
518 (test-decoding-error (255 65 66 67) "UTF-8" 'escape
519 ;; `escape' should behave exactly like `error'.
527 (test-decoding-error (255 206 187 206 188) "UTF-8" 'substitute
534 (test-decoding-error (206 187 206) "UTF-8" 'error
535 ;; Unterminated sequence.
541 (test-decoding-error (206 187 206) "UTF-8" 'substitute
542 ;; Unterminated sequence.
548 (test-decoding-error (255 65 66 67) "UTF-8" 'error
550 ;; `peek-char' should repeatedly raise an error.
555 ;; Move past the error.
563 ;; Check how ill-formed UTF-8 sequences are handled (see Table 3-7
564 ;; of the "Conformance" chapter of Unicode 6.0.0.)
566 (test-decoding-error (#xc0 #x80 #x41) "UTF-8" 'error
568 (read-char -> error) ;; C0: should be in the C2..DF range
569 (read-char -> error) ;; 80: invalid
573 (test-decoding-error (#xc0 #x80 #x41) "UTF-8" 'error
575 (read-char -> error) ;; C0: should be in the C2..DF range
576 (read-char -> error) ;; 80: invalid
580 (test-decoding-error (#xe0 #x88 #x88) "UTF-8" 'error
582 (read-char -> error) ;; 2nd byte should be in the A0..BF range
585 (test-decoding-error (#xf0 #x88 #x88 #x88) "UTF-8" 'error
587 (read-char -> error) ;; 2nd byte should be in the 90..BF range
588 (read-char -> eof)))))
590 (with-test-prefix "call-with-output-string"
592 ;; In Guile 1.6.4, closing the port resulted in a segv, check that doesn't
594 (pass-if-exception "proc closes port" exception:wrong-type-arg
595 (call-with-output-string close-port)))
599 ;;;; Soft ports. No tests implemented yet.
602 ;;;; Generic operations across all port types.
604 (let ((port-loop-temp (test-file)))
606 ;; Return a list of input ports that all return the same text.
607 ;; We map tests over this list.
608 (define (input-port-list text)
610 ;; Create a text file some of the ports will use.
611 (let ((out-port (open-output-file port-loop-temp)))
612 (display text out-port)
613 (close-port out-port))
615 (list (open-input-file port-loop-temp)
616 (open-input-pipe (string-append "cat " port-loop-temp))
617 (call-with-input-string text (lambda (x) x))
618 ;; We don't test soft ports at the moment.
621 (define port-list-names '("file" "pipe" "string"))
623 ;; Test the line counter.
624 (define (test-line-counter text second-line final-column)
625 (with-test-prefix "line counter"
626 (let ((ports (input-port-list text)))
628 (lambda (port port-name)
629 (with-test-prefix port-name
630 (pass-if "at beginning of input"
631 (= (port-line port) 0))
632 (pass-if "read first character"
633 (eqv? (read-char port) #\x))
634 (pass-if "after reading one character"
635 (= (port-line port) 0))
636 (pass-if "read first newline"
637 (eqv? (read-char port) #\newline))
638 (pass-if "after reading first newline char"
639 (= (port-line port) 1))
640 (pass-if "second line read correctly"
641 (equal? (read-line port) second-line))
642 (pass-if "read-line increments line number"
643 (= (port-line port) 2))
644 (pass-if "read-line returns EOF"
647 ((eof-object? (read-line port)) #t)
649 (else (loop (+ i 1))))))
650 (pass-if "line count is 5 at EOF"
651 (= (port-line port) 5))
652 (pass-if "column is correct at EOF"
653 (= (port-column port) final-column))))
654 ports port-list-names)
655 (for-each close-port ports)
656 (delete-file port-loop-temp))))
658 (with-test-prefix "newline"
661 "He who receives an idea from me, receives instruction\n"
662 "himself without lessening mine; as he who lights his\n"
663 "taper at mine, receives light without darkening me.\n"
664 " --- Thomas Jefferson\n")
665 "He who receives an idea from me, receives instruction"
668 (with-test-prefix "no newline"
671 "He who receives an idea from me, receives instruction\n"
672 "himself without lessening mine; as he who lights his\n"
673 "taper at mine, receives light without darkening me.\n"
674 " --- Thomas Jefferson\n"
676 "He who receives an idea from me, receives instruction"
679 ;; Test port-line and port-column for output ports
681 (define (test-output-line-counter text final-column)
682 (with-test-prefix "port-line and port-column for output ports"
683 (let ((port (open-output-string)))
684 (pass-if "at beginning of input"
685 (and (= (port-line port) 0)
686 (= (port-column port) 0)))
687 (write-char #\x port)
688 (pass-if "after writing one character"
689 (and (= (port-line port) 0)
690 (= (port-column port) 1)))
691 (write-char #\newline port)
692 (pass-if "after writing first newline char"
693 (and (= (port-line port) 1)
694 (= (port-column port) 0)))
696 (pass-if "line count is 5 at end"
697 (= (port-line port) 5))
698 (pass-if "column is correct at end"
699 (= (port-column port) final-column)))))
701 (test-output-line-counter
702 (string-append "He who receives an idea from me, receives instruction\n"
703 "himself without lessening mine; as he who lights his\n"
704 "taper at mine, receives light without darkening me.\n"
705 " --- Thomas Jefferson\n"
709 (with-test-prefix "port-column"
711 (with-test-prefix "output"
714 (let ((port (open-output-string)))
716 (= 1 (port-column port))))
719 (let ((port (open-output-string)))
721 (= 0 (port-column port))))
724 (let ((port (open-output-string)))
726 (= 1 (port-column port))))
728 (pass-if "\\x08 backspace"
729 (let ((port (open-output-string)))
730 (display "\x08" port)
731 (= 0 (port-column port))))
733 (pass-if "x\\x08 backspace"
734 (let ((port (open-output-string)))
735 (display "x\x08" port)
736 (= 0 (port-column port))))
739 (let ((port (open-output-string)))
741 (= 0 (port-column port))))
744 (let ((port (open-output-string)))
746 (= 0 (port-column port))))
749 (let ((port (open-output-string)))
751 (= 0 (port-column port))))
754 (let ((port (open-output-string)))
756 (= 0 (port-column port))))
759 (let ((port (open-output-string)))
761 (= 8 (port-column port))))
764 (let ((port (open-output-string)))
766 (= 8 (port-column port)))))
768 (with-test-prefix "input"
771 (let ((port (open-input-string "x")))
772 (while (not (eof-object? (read-char port))))
773 (= 1 (port-column port))))
776 (let ((port (open-input-string "\a")))
777 (while (not (eof-object? (read-char port))))
778 (= 0 (port-column port))))
781 (let ((port (open-input-string "x\a")))
782 (while (not (eof-object? (read-char port))))
783 (= 1 (port-column port))))
785 (pass-if "\\x08 backspace"
786 (let ((port (open-input-string "\x08")))
787 (while (not (eof-object? (read-char port))))
788 (= 0 (port-column port))))
790 (pass-if "x\\x08 backspace"
791 (let ((port (open-input-string "x\x08")))
792 (while (not (eof-object? (read-char port))))
793 (= 0 (port-column port))))
796 (let ((port (open-input-string "\n")))
797 (while (not (eof-object? (read-char port))))
798 (= 0 (port-column port))))
801 (let ((port (open-input-string "x\n")))
802 (while (not (eof-object? (read-char port))))
803 (= 0 (port-column port))))
806 (let ((port (open-input-string "\r")))
807 (while (not (eof-object? (read-char port))))
808 (= 0 (port-column port))))
811 (let ((port (open-input-string "x\r")))
812 (while (not (eof-object? (read-char port))))
813 (= 0 (port-column port))))
816 (let ((port (open-input-string "\t")))
817 (while (not (eof-object? (read-char port))))
818 (= 8 (port-column port))))
821 (let ((port (open-input-string "x\t")))
822 (while (not (eof-object? (read-char port))))
823 (= 8 (port-column port))))))
825 (with-test-prefix "port-line"
827 ;; in guile 1.8.1 and earlier port-line was truncated to an int, whereas
828 ;; scm_t_port actually holds a long; this restricted the range on 64-bit
830 (pass-if "set most-positive-fixnum/2"
831 (let ((n (quotient most-positive-fixnum 2))
832 (port (open-output-string)))
833 (set-port-line! port n)
834 (eqv? n (port-line port)))))
836 (with-test-prefix "port-encoding"
838 (pass-if-exception "set-port-encoding!, wrong encoding"
839 exception:miscellaneous-error
840 (set-port-encoding! (open-input-string "") "does-not-exist"))
842 (pass-if-exception "%default-port-encoding, wrong encoding"
843 exception:miscellaneous-error
844 (read (with-fluids ((%default-port-encoding "does-not-exist"))
845 (open-input-string "")))))
851 (with-test-prefix "port-for-each"
853 ;; In guile 1.8.0 through 1.8.2, port-for-each could pass a freed cell to
854 ;; its iterator func if a port was inaccessible in the last gc mark but
855 ;; the lazy sweeping has not yet reached it to remove it from the port
856 ;; table (scm_i_port_table). Provoking those gc conditions is a little
857 ;; tricky, but the following code made it happen in 1.8.2.
858 (pass-if "passing freed cell"
860 ;; clear out the heap
862 ;; allocate cells so the opened ports aren't at the start of the heap
864 (open-input-file "/dev/null")
866 (open-input-file "/dev/null")
867 ;; this gc leaves the above ports unmarked, ie. inaccessible
869 ;; but they're still in the port table, so this sees them
870 (port-for-each (lambda (port)
871 (set! lst (cons port lst))))
872 ;; this forces completion of the sweeping
874 ;; and (if the bug is present) the cells accumulated in LST are now
875 ;; freed cells, which give #f from `port?'
876 (not (memq #f (map port? lst))))))
880 (pass-if "fdes->ports finds port"
881 (let ((port (open-file (test-file) "w")))
883 (not (not (memq port (fdes->ports (port->fdes port))))))))
889 (with-test-prefix "seek"
891 (with-test-prefix "file port"
894 (call-with-output-file (test-file)
896 (display "abcde" port)))
897 (let ((port (open-file (test-file) "r")))
899 (seek port 2 SEEK_CUR)
900 (eqv? #\d (read-char port))))
903 (call-with-output-file (test-file)
905 (display "abcde" port)))
906 (let ((port (open-file (test-file) "r")))
908 (seek port 3 SEEK_SET)
909 (eqv? #\d (read-char port))))
912 (call-with-output-file (test-file)
914 (display "abcde" port)))
915 (let ((port (open-file (test-file) "r")))
917 (seek port -2 SEEK_END)
918 (eqv? #\d (read-char port))))))
924 (with-test-prefix "truncate-file"
926 (pass-if-exception "flonum file" exception:wrong-type-arg
927 (truncate-file 1.0 123))
929 (pass-if-exception "frac file" exception:wrong-type-arg
930 (truncate-file 7/3 123))
932 (with-test-prefix "filename"
934 (pass-if-exception "flonum length" exception:wrong-type-arg
935 (call-with-output-file (test-file)
937 (display "hello" port)))
938 (truncate-file (test-file) 1.0))
941 (call-with-output-file (test-file)
943 (display "hello" port)))
944 (truncate-file (test-file) 1)
945 (eqv? 1 (stat:size (stat (test-file)))))
947 (pass-if-exception "shorten to current pos" exception:miscellaneous-error
948 (call-with-output-file (test-file)
950 (display "hello" port)))
951 (truncate-file (test-file))))
953 (with-test-prefix "file descriptor"
956 (call-with-output-file (test-file)
958 (display "hello" port)))
959 (let ((fd (open-fdes (test-file) O_RDWR)))
962 (eqv? 1 (stat:size (stat (test-file)))))
964 (pass-if "shorten to current pos"
965 (call-with-output-file (test-file)
967 (display "hello" port)))
968 (let ((fd (open-fdes (test-file) O_RDWR)))
972 (eqv? 1 (stat:size (stat (test-file))))))
974 (with-test-prefix "file port"
977 (call-with-output-file (test-file)
979 (display "hello" port)))
980 (let ((port (open-file (test-file) "r+")))
981 (truncate-file port 1))
982 (eqv? 1 (stat:size (stat (test-file)))))
984 (pass-if "shorten to current pos"
985 (call-with-output-file (test-file)
987 (display "hello" port)))
988 (let ((port (open-file (test-file) "r+")))
990 (truncate-file port))
991 (eqv? 1 (stat:size (stat (test-file)))))))
994 ;;;; testing read-delimited and friends
996 (with-test-prefix "read-delimited!"
997 (let ((c (make-string 20 #\!)))
998 (call-with-input-string
1002 (read-delimited! "\n" c port 'concat)
1003 (pass-if "read-delimited! reads a first line"
1004 (string=? c "defdef\n!!!!!!!!!!!!!"))
1006 (read-delimited! "\n" c port 'concat 3)
1007 (pass-if "read-delimited! reads a first line"
1008 (string=? c "defghighi\n!!!!!!!!!!"))))))
1013 (call-with-input-string
1016 (pass-if "char-ready? returns true on string port"
1017 (char-ready? port))))
1019 ;;; This segfaults on some versions of Guile. We really should run
1020 ;;; the tests in a subprocess...
1022 (call-with-input-string
1025 (with-input-from-port
1028 (pass-if "char-ready? returns true on string port as default port"
1032 ;;;; Close current-input-port, and make sure everyone can handle it.
1034 (with-test-prefix "closing current-input-port"
1035 (for-each (lambda (procedure name)
1036 (with-input-from-port
1037 (call-with-input-string "foo" (lambda (p) p))
1039 (close-port (current-input-port))
1040 (pass-if-exception name
1041 exception:wrong-type-arg
1043 (list read read-char read-line)
1044 '("read" "read-char" "read-line")))
1046 (delete-file (test-file))
1048 ;;; Local Variables:
1049 ;;; eval: (put 'test-decoding-error 'scheme-indent-function 3)