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0d572e91 | 1 | ;;;; ports.test --- test suite for Guile I/O ports -*- scheme -*- |
7ef450bf | 2 | ;;;; Jim Blandy <jimb@red-bean.com> --- May 1999 |
000ee07f | 3 | ;;;; |
7ef450bf | 4 | ;;;; Copyright (C) 1999 Free Software Foundation, Inc. |
000ee07f JB |
5 | ;;;; |
6 | ;;;; This program is free software; you can redistribute it and/or modify | |
7 | ;;;; it under the terms of the GNU General Public License as published by | |
8 | ;;;; the Free Software Foundation; either version 2, or (at your option) | |
9 | ;;;; any later version. | |
10 | ;;;; | |
11 | ;;;; This program 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 | |
14 | ;;;; GNU General Public License for more details. | |
15 | ;;;; | |
16 | ;;;; You should have received a copy of the GNU General Public License | |
17 | ;;;; along with this software; see the file COPYING. If not, write to | |
18 | ;;;; the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
19 | ;;;; Boston, MA 02111-1307 USA | |
20 | ||
f5d4dde3 JB |
21 | (use-modules (test-suite lib) |
22 | (ice-9 popen)) | |
000ee07f JB |
23 | |
24 | (define (display-line . args) | |
25 | (for-each display args) | |
26 | (newline)) | |
27 | ||
28 | (define (test-file) | |
29 | (tmpnam)) | |
30 | ||
31 | \f | |
32 | ;;;; Some general utilities for testing ports. | |
33 | ||
34 | ;;; Read from PORT until EOF, and return the result as a string. | |
35 | (define (read-all port) | |
36 | (let loop ((chars '())) | |
37 | (let ((char (read-char port))) | |
38 | (if (eof-object? char) | |
39 | (list->string (reverse! chars)) | |
40 | (loop (cons char chars)))))) | |
41 | ||
42 | (define (read-file filename) | |
43 | (let* ((port (open-input-file filename)) | |
44 | (string (read-all port))) | |
45 | (close-port port) | |
46 | string)) | |
47 | ||
48 | \f | |
49 | ;;;; Normal file ports. | |
50 | ||
51 | ;;; Write out an s-expression, and read it back. | |
0d572e91 JB |
52 | (catch-test-errors |
53 | (let ((string '("From fairest creatures we desire increase," | |
54 | "That thereby beauty's rose might never die,")) | |
55 | (filename (test-file))) | |
56 | (let ((port (open-output-file filename))) | |
57 | (write string port) | |
58 | (close-port port)) | |
59 | (let ((port (open-input-file filename))) | |
60 | (let ((in-string (read port))) | |
61 | (pass-if "file: write and read back list of strings" | |
62 | (equal? string in-string))) | |
63 | (close-port port)) | |
64 | (delete-file filename))) | |
000ee07f JB |
65 | |
66 | ;;; Write out a string, and read it back a character at a time. | |
0d572e91 JB |
67 | (catch-test-errors |
68 | (let ((string "This is a test string\nwith no newline at the end") | |
69 | (filename (test-file))) | |
70 | (let ((port (open-output-file filename))) | |
71 | (display string port) | |
72 | (close-port port)) | |
73 | (let ((in-string (read-file filename))) | |
74 | (pass-if "file: write and read back characters" | |
75 | (equal? string in-string))) | |
76 | (delete-file filename))) | |
000ee07f | 77 | |
7c035009 GH |
78 | ;;; Buffered input/output port with seeking. |
79 | (catch-test-errors | |
80 | (let* ((filename (test-file)) | |
81 | (port (open-file filename "w+"))) | |
82 | (display "J'Accuse" port) | |
75efe453 | 83 | (seek port -1 SEEK_CUR) |
7c035009 GH |
84 | (pass-if "file: r/w 1" |
85 | (char=? (read-char port) #\e)) | |
86 | (pass-if "file: r/w 2" | |
87 | (eof-object? (read-char port))) | |
75efe453 | 88 | (seek port -1 SEEK_CUR) |
7c035009 | 89 | (write-char #\x port) |
75efe453 | 90 | (seek port 7 SEEK_SET) |
7c035009 GH |
91 | (pass-if "file: r/w 3" |
92 | (char=? (read-char port) #\x)) | |
75efe453 | 93 | (seek port -2 SEEK_END) |
7c035009 GH |
94 | (pass-if "file: r/w 4" |
95 | (char=? (read-char port) #\s)) | |
96 | (delete-file filename))) | |
97 | ||
98 | ;;; Unbuffered input/output port with seeking. | |
99 | (catch-test-errors | |
100 | (let* ((filename (test-file)) | |
101 | (port (open-file filename "w+0"))) | |
102 | (display "J'Accuse" port) | |
75efe453 | 103 | (seek port -1 SEEK_CUR) |
7c035009 GH |
104 | (pass-if "file: ub r/w 1" |
105 | (char=? (read-char port) #\e)) | |
106 | (pass-if "file: ub r/w 2" | |
107 | (eof-object? (read-char port))) | |
75efe453 | 108 | (seek port -1 SEEK_CUR) |
7c035009 | 109 | (write-char #\x port) |
75efe453 | 110 | (seek port 7 SEEK_SET) |
7c035009 GH |
111 | (pass-if "file: ub r/w 3" |
112 | (char=? (read-char port) #\x)) | |
75efe453 | 113 | (seek port -2 SEEK_END) |
7c035009 GH |
114 | (pass-if "file: ub r/w 4" |
115 | (char=? (read-char port) #\s)) | |
116 | (delete-file filename))) | |
117 | ||
7f214e60 GH |
118 | ;;; unusual characters. |
119 | (catch-test-errors | |
120 | (let* ((filename (test-file)) | |
121 | (port (open-output-file filename))) | |
122 | (display (string #\nul (integer->char 255) (integer->char 128) | |
123 | #\nul) port) | |
124 | (close-port port) | |
125 | (let* ((port (open-input-file filename)) | |
126 | (line (read-line port))) | |
127 | (pass-if "file: read back NUL 1" | |
128 | (char=? (string-ref line 0) #\nul)) | |
129 | (pass-if "file: read back 255" | |
130 | (char=? (string-ref line 1) (integer->char 255))) | |
131 | (pass-if "file: read back 128" | |
132 | (char=? (string-ref line 2) (integer->char 128))) | |
133 | (pass-if "file: read back NUL 2" | |
134 | (char=? (string-ref line 3) #\nul)) | |
135 | (pass-if "file: EOF" | |
136 | (eof-object? (read-char port)))) | |
137 | (delete-file filename))) | |
138 | ||
0eb2e8cd GH |
139 | ;;; line buffering mode. |
140 | (catch-test-errors | |
141 | (let* ((filename (test-file)) | |
142 | (port (open-file filename "wl")) | |
143 | (test-string "one line more or less")) | |
144 | (write-line test-string port) | |
145 | (let* ((in-port (open-input-file filename)) | |
146 | (line (read-line in-port))) | |
147 | (close-port in-port) | |
148 | (close-port port) | |
149 | (pass-if "file: line buffering" | |
150 | (string=? line test-string))) | |
151 | (delete-file filename))) | |
152 | ||
d1b143e9 GH |
153 | ;;; ungetting characters and strings. |
154 | (catch-test-errors | |
155 | (with-input-from-string "walk on the moon\nmoon" | |
156 | (lambda () | |
157 | (read-char) | |
158 | (unread-char #\a (current-input-port)) | |
159 | (pass-if "unread-char" | |
160 | (char=? (read-char) #\a)) | |
161 | (read-line) | |
162 | (let ((replacenoid "chicken enchilada")) | |
163 | (unread-char #\newline (current-input-port)) | |
164 | (unread-string replacenoid (current-input-port)) | |
165 | (pass-if "unread-string" | |
166 | (string=? (read-line) replacenoid))) | |
167 | (pass-if "unread residue" | |
168 | (string=? (read-line) "moon"))))) | |
169 | ||
000ee07f JB |
170 | \f |
171 | ;;;; Pipe ports. | |
172 | ||
173 | ;;; Run a command, and read its output. | |
0d572e91 JB |
174 | (catch-test-errors |
175 | (let* ((pipe (open-pipe "echo 'Howdy there, partner!'" "r")) | |
176 | (in-string (read-all pipe))) | |
f5d4dde3 | 177 | (close-pipe pipe) |
0d572e91 JB |
178 | (pass-if "pipe: read" |
179 | (equal? in-string "Howdy there, partner!\n")))) | |
000ee07f JB |
180 | |
181 | ;;; Run a command, send some output to it, and see if it worked. | |
0d572e91 JB |
182 | (catch-test-errors |
183 | (let* ((filename (test-file)) | |
184 | (pipe (open-pipe (string-append "grep Mommy > " filename) "w"))) | |
185 | (display "Now Jimmy lives on a mushroom cloud\n" pipe) | |
186 | (display "Mommy, why does everybody have a bomb?\n" pipe) | |
f5d4dde3 | 187 | (close-pipe pipe) |
0d572e91 JB |
188 | (let ((in-string (read-file filename))) |
189 | (pass-if "pipe: write" | |
190 | (equal? in-string "Mommy, why does everybody have a bomb?\n"))) | |
191 | (delete-file filename))) | |
000ee07f JB |
192 | |
193 | \f | |
194 | ;;;; Void ports. These are so trivial we don't test them. | |
195 | ||
196 | \f | |
197 | ;;;; String ports. | |
198 | ||
73cb0a97 JB |
199 | (with-test-prefix "string ports" |
200 | ||
201 | ;; Write text to a string port. | |
202 | (catch-test-errors | |
203 | (let* ((string "Howdy there, partner!") | |
204 | (in-string (call-with-output-string | |
205 | (lambda (port) | |
206 | (display string port) | |
207 | (newline port))))) | |
208 | (pass-if "display text" | |
209 | (equal? in-string (string-append string "\n"))))) | |
000ee07f | 210 | |
73cb0a97 JB |
211 | ;; Write an s-expression to a string port. |
212 | (catch-test-errors | |
213 | (let* ((sexpr '("more utterly random text" 1729 #(a vector) 3.1415926)) | |
214 | (in-sexpr | |
215 | (call-with-input-string (call-with-output-string | |
216 | (lambda (port) | |
217 | (write sexpr port))) | |
218 | read))) | |
219 | (pass-if "write/read sexpr" | |
220 | (equal? in-sexpr sexpr))))) | |
000ee07f JB |
221 | |
222 | \f | |
223 | ;;;; Soft ports. No tests implemented yet. | |
224 | ||
225 | \f | |
226 | ;;;; Generic operations across all port types. | |
227 | ||
228 | (let ((port-loop-temp (test-file))) | |
229 | ||
230 | ;; Return a list of input ports that all return the same text. | |
231 | ;; We map tests over this list. | |
232 | (define (input-port-list text) | |
233 | ||
234 | ;; Create a text file some of the ports will use. | |
235 | (let ((out-port (open-output-file port-loop-temp))) | |
236 | (display text out-port) | |
237 | (close-port out-port)) | |
238 | ||
239 | (list (open-input-file port-loop-temp) | |
240 | (open-input-pipe (string-append "cat " port-loop-temp)) | |
241 | (call-with-input-string text (lambda (x) x)) | |
242 | ;; We don't test soft ports at the moment. | |
243 | )) | |
244 | ||
245 | (define port-list-names '("file" "pipe" "string")) | |
246 | ||
247 | ;; Test the line counter. | |
73cb0a97 | 248 | (define (test-line-counter text second-line final-column) |
000ee07f JB |
249 | (with-test-prefix "line counter" |
250 | (let ((ports (input-port-list text))) | |
251 | (for-each | |
252 | (lambda (port port-name) | |
253 | (with-test-prefix port-name | |
254 | (pass-if "at beginning of input" | |
255 | (= (port-line port) 0)) | |
256 | (pass-if "read first character" | |
257 | (eqv? (read-char port) #\x)) | |
258 | (pass-if "after reading one character" | |
259 | (= (port-line port) 0)) | |
260 | (pass-if "read first newline" | |
261 | (eqv? (read-char port) #\newline)) | |
262 | (pass-if "after reading first newline char" | |
263 | (= (port-line port) 1)) | |
264 | (pass-if "second line read correctly" | |
265 | (equal? (read-line port) second-line)) | |
266 | (pass-if "read-line increments line number" | |
267 | (= (port-line port) 2)) | |
0b8faa0e JB |
268 | (pass-if "read-line returns EOF" |
269 | (let loop ((i 0)) | |
270 | (cond | |
271 | ((eof-object? (read-line port)) #t) | |
272 | ((> i 20) #f) | |
273 | (else (loop (+ i 1)))))) | |
000ee07f | 274 | (pass-if "line count is 5 at EOF" |
73cb0a97 JB |
275 | (= (port-line port) 5)) |
276 | (pass-if "column is correct at EOF" | |
277 | (= (port-column port) final-column)))) | |
000ee07f JB |
278 | ports port-list-names) |
279 | (for-each close-port ports) | |
280 | (delete-file port-loop-temp)))) | |
281 | ||
0d572e91 JB |
282 | (catch-test-errors |
283 | (with-test-prefix "newline" | |
284 | (test-line-counter | |
285 | (string-append "x\n" | |
286 | "He who receives an idea from me, receives instruction\n" | |
287 | "himself without lessening mine; as he who lights his\n" | |
288 | "taper at mine, receives light without darkening me.\n" | |
289 | " --- Thomas Jefferson\n") | |
73cb0a97 JB |
290 | "He who receives an idea from me, receives instruction" |
291 | 0))) | |
0d572e91 JB |
292 | |
293 | (catch-test-errors | |
294 | (with-test-prefix "no newline" | |
295 | (test-line-counter | |
296 | (string-append "x\n" | |
297 | "He who receives an idea from me, receives instruction\n" | |
298 | "himself without lessening mine; as he who lights his\n" | |
299 | "taper at mine, receives light without darkening me.\n" | |
300 | " --- Thomas Jefferson\n" | |
301 | "no newline here") | |
73cb0a97 JB |
302 | "He who receives an idea from me, receives instruction" |
303 | 15)))) | |
5bc1201f JB |
304 | |
305 | \f | |
306 | ;;;; testing read-delimited and friends | |
307 | ||
308 | (with-test-prefix "read-delimited!" | |
309 | (let ((c (make-string 20 #\!))) | |
310 | (call-with-input-string | |
311 | "defdef\nghighi\n" | |
312 | (lambda (port) | |
313 | ||
314 | (read-delimited! "\n" c port 'concat) | |
315 | (pass-if "read-delimited! reads a first line" | |
316 | (string=? c "defdef\n!!!!!!!!!!!!!")) | |
317 | ||
318 | (read-delimited! "\n" c port 'concat 3) | |
319 | (pass-if "read-delimited! reads a first line" | |
320 | (string=? c "defghighi\n!!!!!!!!!!")))))) | |
1b054952 JB |
321 | |
322 | \f | |
323 | ;;;; char-ready? | |
324 | ||
325 | (call-with-input-string | |
326 | "howdy" | |
327 | (lambda (port) | |
328 | (pass-if "char-ready? returns true on string port" | |
329 | (char-ready? port)))) | |
330 | ||
331 | ;;; This segfaults on some versions of Guile. We really should run | |
332 | ;;; the tests in a subprocess... | |
333 | ||
334 | (call-with-input-string | |
335 | "howdy" | |
336 | (lambda (port) | |
337 | (with-input-from-port | |
338 | port | |
339 | (lambda () | |
340 | (pass-if "char-ready? returns true on string port as default port" | |
341 | (char-ready?)))))) |