| 1 | ;;;; ports.test --- test suite for Guile I/O ports -*- scheme -*- |
| 2 | ;;;; Jim Blandy <jimb@red-bean.com> --- May 1999 |
| 3 | ;;;; |
| 4 | ;;;; Copyright (C) 1999, 2001, 2004, 2006 Free Software Foundation, Inc. |
| 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., 51 Franklin Street, Fifth Floor, |
| 19 | ;;;; Boston, MA 02110-1301 USA |
| 20 | |
| 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 | |
| 27 | (define (display-line . args) |
| 28 | (for-each display args) |
| 29 | (newline)) |
| 30 | |
| 31 | (define (test-file) |
| 32 | (data-file-name "ports-test.tmp")) |
| 33 | |
| 34 | \f |
| 35 | ;;;; Some general utilities for testing ports. |
| 36 | |
| 37 | ;;; Read from PORT until EOF, and return the result as a string. |
| 38 | (define (read-all port) |
| 39 | (let loop ((chars '())) |
| 40 | (let ((char (read-char port))) |
| 41 | (if (eof-object? char) |
| 42 | (list->string (reverse! chars)) |
| 43 | (loop (cons char chars)))))) |
| 44 | |
| 45 | (define (read-file filename) |
| 46 | (let* ((port (open-input-file filename)) |
| 47 | (string (read-all port))) |
| 48 | (close-port port) |
| 49 | string)) |
| 50 | |
| 51 | \f |
| 52 | ;;;; Normal file ports. |
| 53 | |
| 54 | ;;; Write out an s-expression, and read it back. |
| 55 | (let ((string '("From fairest creatures we desire increase," |
| 56 | "That thereby beauty's rose might never die,")) |
| 57 | (filename (test-file))) |
| 58 | (let ((port (open-output-file filename))) |
| 59 | (write string port) |
| 60 | (close-port port)) |
| 61 | (let ((port (open-input-file filename))) |
| 62 | (let ((in-string (read port))) |
| 63 | (pass-if "file: write and read back list of strings" |
| 64 | (equal? string in-string))) |
| 65 | (close-port port)) |
| 66 | (delete-file filename)) |
| 67 | |
| 68 | ;;; Write out a string, and read it back a character at a time. |
| 69 | (let ((string "This is a test string\nwith no newline at the end") |
| 70 | (filename (test-file))) |
| 71 | (let ((port (open-output-file filename))) |
| 72 | (display string port) |
| 73 | (close-port port)) |
| 74 | (let ((in-string (read-file filename))) |
| 75 | (pass-if "file: write and read back characters" |
| 76 | (equal? string in-string))) |
| 77 | (delete-file filename)) |
| 78 | |
| 79 | ;;; Buffered input/output port with seeking. |
| 80 | (let* ((filename (test-file)) |
| 81 | (port (open-file filename "w+"))) |
| 82 | (display "J'Accuse" port) |
| 83 | (seek port -1 SEEK_CUR) |
| 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))) |
| 88 | (seek port -1 SEEK_CUR) |
| 89 | (write-char #\x port) |
| 90 | (seek port 7 SEEK_SET) |
| 91 | (pass-if "file: r/w 3" |
| 92 | (char=? (read-char port) #\x)) |
| 93 | (seek port -2 SEEK_END) |
| 94 | (pass-if "file: r/w 4" |
| 95 | (char=? (read-char port) #\s)) |
| 96 | (close-port port) |
| 97 | (delete-file filename)) |
| 98 | |
| 99 | ;;; Unbuffered input/output port with seeking. |
| 100 | (let* ((filename (test-file)) |
| 101 | (port (open-file filename "w+0"))) |
| 102 | (display "J'Accuse" port) |
| 103 | (seek port -1 SEEK_CUR) |
| 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))) |
| 108 | (seek port -1 SEEK_CUR) |
| 109 | (write-char #\x port) |
| 110 | (seek port 7 SEEK_SET) |
| 111 | (pass-if "file: ub r/w 3" |
| 112 | (char=? (read-char port) #\x)) |
| 113 | (seek port -2 SEEK_END) |
| 114 | (pass-if "file: ub r/w 4" |
| 115 | (char=? (read-char port) #\s)) |
| 116 | (close-port port) |
| 117 | (delete-file filename)) |
| 118 | |
| 119 | ;;; Buffered output-only and input-only ports with seeking. |
| 120 | (let* ((filename (test-file)) |
| 121 | (port (open-output-file filename))) |
| 122 | (display "J'Accuse" port) |
| 123 | (pass-if "file: out tell" |
| 124 | (= (seek port 0 SEEK_CUR) 8)) |
| 125 | (seek port -1 SEEK_CUR) |
| 126 | (write-char #\x port) |
| 127 | (close-port port) |
| 128 | (let ((iport (open-input-file filename))) |
| 129 | (pass-if "file: in tell 0" |
| 130 | (= (seek iport 0 SEEK_CUR) 0)) |
| 131 | (read-char iport) |
| 132 | (pass-if "file: in tell 1" |
| 133 | (= (seek iport 0 SEEK_CUR) 1)) |
| 134 | (unread-char #\z iport) |
| 135 | (pass-if "file: in tell 0 after unread" |
| 136 | (= (seek iport 0 SEEK_CUR) 0)) |
| 137 | (pass-if "file: unread char still there" |
| 138 | (char=? (read-char iport) #\z)) |
| 139 | (seek iport 7 SEEK_SET) |
| 140 | (pass-if "file: in last char" |
| 141 | (char=? (read-char iport) #\x)) |
| 142 | (close-port iport)) |
| 143 | (delete-file filename)) |
| 144 | |
| 145 | ;;; unusual characters. |
| 146 | (let* ((filename (test-file)) |
| 147 | (port (open-output-file filename))) |
| 148 | (display (string #\nul (integer->char 255) (integer->char 128) |
| 149 | #\nul) port) |
| 150 | (close-port port) |
| 151 | (let* ((port (open-input-file filename)) |
| 152 | (line (read-line port))) |
| 153 | (pass-if "file: read back NUL 1" |
| 154 | (char=? (string-ref line 0) #\nul)) |
| 155 | (pass-if "file: read back 255" |
| 156 | (char=? (string-ref line 1) (integer->char 255))) |
| 157 | (pass-if "file: read back 128" |
| 158 | (char=? (string-ref line 2) (integer->char 128))) |
| 159 | (pass-if "file: read back NUL 2" |
| 160 | (char=? (string-ref line 3) #\nul)) |
| 161 | (pass-if "file: EOF" |
| 162 | (eof-object? (read-char port))) |
| 163 | (close-port port)) |
| 164 | (delete-file filename)) |
| 165 | |
| 166 | ;;; line buffering mode. |
| 167 | (let* ((filename (test-file)) |
| 168 | (port (open-file filename "wl")) |
| 169 | (test-string "one line more or less")) |
| 170 | (write-line test-string port) |
| 171 | (let* ((in-port (open-input-file filename)) |
| 172 | (line (read-line in-port))) |
| 173 | (close-port in-port) |
| 174 | (close-port port) |
| 175 | (pass-if "file: line buffering" |
| 176 | (string=? line test-string))) |
| 177 | (delete-file filename)) |
| 178 | |
| 179 | ;;; ungetting characters and strings. |
| 180 | (with-input-from-string "walk on the moon\nmoon" |
| 181 | (lambda () |
| 182 | (read-char) |
| 183 | (unread-char #\a (current-input-port)) |
| 184 | (pass-if "unread-char" |
| 185 | (char=? (read-char) #\a)) |
| 186 | (read-line) |
| 187 | (let ((replacenoid "chicken enchilada")) |
| 188 | (unread-char #\newline (current-input-port)) |
| 189 | (unread-string replacenoid (current-input-port)) |
| 190 | (pass-if "unread-string" |
| 191 | (string=? (read-line) replacenoid))) |
| 192 | (pass-if "unread residue" |
| 193 | (string=? (read-line) "moon")))) |
| 194 | |
| 195 | ;;; non-blocking mode on a port. create a pipe and set O_NONBLOCK on |
| 196 | ;;; the reading end. try to read a byte: should get EAGAIN or |
| 197 | ;;; EWOULDBLOCK error. |
| 198 | (let* ((p (pipe)) |
| 199 | (r (car p))) |
| 200 | (fcntl r F_SETFL (logior (fcntl r F_GETFL) O_NONBLOCK)) |
| 201 | (pass-if "non-blocking-I/O" |
| 202 | (catch 'system-error |
| 203 | (lambda () (read-char r) #f) |
| 204 | (lambda (key . args) |
| 205 | (and (eq? key 'system-error) |
| 206 | (let ((errno (car (list-ref args 3)))) |
| 207 | (or (= errno EAGAIN) |
| 208 | (= errno EWOULDBLOCK)))))))) |
| 209 | |
| 210 | \f |
| 211 | ;;;; Pipe (popen) ports. |
| 212 | |
| 213 | ;;; Run a command, and read its output. |
| 214 | (let* ((pipe (open-pipe "echo 'Howdy there, partner!'" "r")) |
| 215 | (in-string (read-all pipe))) |
| 216 | (close-pipe pipe) |
| 217 | (pass-if "pipe: read" |
| 218 | (equal? in-string "Howdy there, partner!\n"))) |
| 219 | |
| 220 | ;;; Run a command, send some output to it, and see if it worked. |
| 221 | (let* ((filename (test-file)) |
| 222 | (pipe (open-pipe (string-append "grep Mommy > " filename) "w"))) |
| 223 | (display "Now Jimmy lives on a mushroom cloud\n" pipe) |
| 224 | (display "Mommy, why does everybody have a bomb?\n" pipe) |
| 225 | (close-pipe pipe) |
| 226 | (let ((in-string (read-file filename))) |
| 227 | (pass-if "pipe: write" |
| 228 | (equal? in-string "Mommy, why does everybody have a bomb?\n"))) |
| 229 | (delete-file filename)) |
| 230 | |
| 231 | \f |
| 232 | ;;;; Void ports. These are so trivial we don't test them. |
| 233 | |
| 234 | \f |
| 235 | ;;;; String ports. |
| 236 | |
| 237 | (with-test-prefix "string ports" |
| 238 | |
| 239 | ;; Write text to a string port. |
| 240 | (let* ((string "Howdy there, partner!") |
| 241 | (in-string (call-with-output-string |
| 242 | (lambda (port) |
| 243 | (display string port) |
| 244 | (newline port))))) |
| 245 | (pass-if "display text" |
| 246 | (equal? in-string (string-append string "\n")))) |
| 247 | |
| 248 | ;; Write an s-expression to a string port. |
| 249 | (let* ((sexpr '("more utterly random text" 1729 #(a vector) 3.1415926)) |
| 250 | (in-sexpr |
| 251 | (call-with-input-string (call-with-output-string |
| 252 | (lambda (port) |
| 253 | (write sexpr port))) |
| 254 | read))) |
| 255 | (pass-if "write/read sexpr" |
| 256 | (equal? in-sexpr sexpr))) |
| 257 | |
| 258 | ;; seeking and unreading from an input string. |
| 259 | (let ((text "that text didn't look random to me")) |
| 260 | (call-with-input-string text |
| 261 | (lambda (p) |
| 262 | (pass-if "input tell 0" |
| 263 | (= (seek p 0 SEEK_CUR) 0)) |
| 264 | (read-char p) |
| 265 | (pass-if "input tell 1" |
| 266 | (= (seek p 0 SEEK_CUR) 1)) |
| 267 | (unread-char #\x p) |
| 268 | (pass-if "input tell back to 0" |
| 269 | (= (seek p 0 SEEK_CUR) 0)) |
| 270 | (pass-if "input ungetted char" |
| 271 | (char=? (read-char p) #\x)) |
| 272 | (seek p 0 SEEK_END) |
| 273 | (pass-if "input seek to end" |
| 274 | (= (seek p 0 SEEK_CUR) |
| 275 | (string-length text))) |
| 276 | (unread-char #\x p) |
| 277 | (pass-if "input seek to beginning" |
| 278 | (= (seek p 0 SEEK_SET) 0)) |
| 279 | (pass-if "input reread first char" |
| 280 | (char=? (read-char p) |
| 281 | (string-ref text 0)))))) |
| 282 | |
| 283 | ;; seeking an output string. |
| 284 | (let* ((text (string-copy "123456789")) |
| 285 | (len (string-length text)) |
| 286 | (result (call-with-output-string |
| 287 | (lambda (p) |
| 288 | (pass-if "output tell 0" |
| 289 | (= (seek p 0 SEEK_CUR) 0)) |
| 290 | (display text p) |
| 291 | (pass-if "output tell end" |
| 292 | (= (seek p 0 SEEK_CUR) len)) |
| 293 | (pass-if "output seek to beginning" |
| 294 | (= (seek p 0 SEEK_SET) 0)) |
| 295 | (write-char #\a p) |
| 296 | (seek p -1 SEEK_END) |
| 297 | (pass-if "output seek to last char" |
| 298 | (= (seek p 0 SEEK_CUR) |
| 299 | (- len 1))) |
| 300 | (write-char #\b p))))) |
| 301 | (string-set! text 0 #\a) |
| 302 | (string-set! text (- len 1) #\b) |
| 303 | (pass-if "output check" |
| 304 | (string=? text result)))) |
| 305 | |
| 306 | (with-test-prefix "call-with-output-string" |
| 307 | |
| 308 | ;; In Guile 1.6.4, closing the port resulted in a segv, check that doesn't |
| 309 | ;; occur. |
| 310 | (pass-if-exception "proc closes port" exception:wrong-type-arg |
| 311 | (call-with-output-string close-port))) |
| 312 | |
| 313 | |
| 314 | \f |
| 315 | ;;;; Soft ports. No tests implemented yet. |
| 316 | |
| 317 | \f |
| 318 | ;;;; Generic operations across all port types. |
| 319 | |
| 320 | (let ((port-loop-temp (test-file))) |
| 321 | |
| 322 | ;; Return a list of input ports that all return the same text. |
| 323 | ;; We map tests over this list. |
| 324 | (define (input-port-list text) |
| 325 | |
| 326 | ;; Create a text file some of the ports will use. |
| 327 | (let ((out-port (open-output-file port-loop-temp))) |
| 328 | (display text out-port) |
| 329 | (close-port out-port)) |
| 330 | |
| 331 | (list (open-input-file port-loop-temp) |
| 332 | (open-input-pipe (string-append "cat " port-loop-temp)) |
| 333 | (call-with-input-string text (lambda (x) x)) |
| 334 | ;; We don't test soft ports at the moment. |
| 335 | )) |
| 336 | |
| 337 | (define port-list-names '("file" "pipe" "string")) |
| 338 | |
| 339 | ;; Test the line counter. |
| 340 | (define (test-line-counter text second-line final-column) |
| 341 | (with-test-prefix "line counter" |
| 342 | (let ((ports (input-port-list text))) |
| 343 | (for-each |
| 344 | (lambda (port port-name) |
| 345 | (with-test-prefix port-name |
| 346 | (pass-if "at beginning of input" |
| 347 | (= (port-line port) 0)) |
| 348 | (pass-if "read first character" |
| 349 | (eqv? (read-char port) #\x)) |
| 350 | (pass-if "after reading one character" |
| 351 | (= (port-line port) 0)) |
| 352 | (pass-if "read first newline" |
| 353 | (eqv? (read-char port) #\newline)) |
| 354 | (pass-if "after reading first newline char" |
| 355 | (= (port-line port) 1)) |
| 356 | (pass-if "second line read correctly" |
| 357 | (equal? (read-line port) second-line)) |
| 358 | (pass-if "read-line increments line number" |
| 359 | (= (port-line port) 2)) |
| 360 | (pass-if "read-line returns EOF" |
| 361 | (let loop ((i 0)) |
| 362 | (cond |
| 363 | ((eof-object? (read-line port)) #t) |
| 364 | ((> i 20) #f) |
| 365 | (else (loop (+ i 1)))))) |
| 366 | (pass-if "line count is 5 at EOF" |
| 367 | (= (port-line port) 5)) |
| 368 | (pass-if "column is correct at EOF" |
| 369 | (= (port-column port) final-column)))) |
| 370 | ports port-list-names) |
| 371 | (for-each close-port ports) |
| 372 | (delete-file port-loop-temp)))) |
| 373 | |
| 374 | (with-test-prefix "newline" |
| 375 | (test-line-counter |
| 376 | (string-append "x\n" |
| 377 | "He who receives an idea from me, receives instruction\n" |
| 378 | "himself without lessening mine; as he who lights his\n" |
| 379 | "taper at mine, receives light without darkening me.\n" |
| 380 | " --- Thomas Jefferson\n") |
| 381 | "He who receives an idea from me, receives instruction" |
| 382 | 0)) |
| 383 | |
| 384 | (with-test-prefix "no newline" |
| 385 | (test-line-counter |
| 386 | (string-append "x\n" |
| 387 | "He who receives an idea from me, receives instruction\n" |
| 388 | "himself without lessening mine; as he who lights his\n" |
| 389 | "taper at mine, receives light without darkening me.\n" |
| 390 | " --- Thomas Jefferson\n" |
| 391 | "no newline here") |
| 392 | "He who receives an idea from me, receives instruction" |
| 393 | 15))) |
| 394 | |
| 395 | ;; Test port-line and port-column for output ports |
| 396 | |
| 397 | (define (test-output-line-counter text final-column) |
| 398 | (with-test-prefix "port-line and port-column for output ports" |
| 399 | (let ((port (open-output-string))) |
| 400 | (pass-if "at beginning of input" |
| 401 | (and (= (port-line port) 0) |
| 402 | (= (port-column port) 0))) |
| 403 | (write-char #\x port) |
| 404 | (pass-if "after writing one character" |
| 405 | (and (= (port-line port) 0) |
| 406 | (= (port-column port) 1))) |
| 407 | (write-char #\newline port) |
| 408 | (pass-if "after writing first newline char" |
| 409 | (and (= (port-line port) 1) |
| 410 | (= (port-column port) 0))) |
| 411 | (display text port) |
| 412 | (pass-if "line count is 5 at end" |
| 413 | (= (port-line port) 5)) |
| 414 | (pass-if "column is correct at end" |
| 415 | (= (port-column port) final-column))))) |
| 416 | |
| 417 | (test-output-line-counter |
| 418 | (string-append "He who receives an idea from me, receives instruction\n" |
| 419 | "himself without lessening mine; as he who lights his\n" |
| 420 | "taper at mine, receives light without darkening me.\n" |
| 421 | " --- Thomas Jefferson\n" |
| 422 | "no newline here") |
| 423 | 15) |
| 424 | |
| 425 | (with-test-prefix "port-column" |
| 426 | |
| 427 | (with-test-prefix "output" |
| 428 | |
| 429 | (pass-if "x" |
| 430 | (let ((port (open-output-string))) |
| 431 | (display "x" port) |
| 432 | (= 1 (port-column port)))) |
| 433 | |
| 434 | (pass-if "\\a" |
| 435 | (let ((port (open-output-string))) |
| 436 | (display "\a" port) |
| 437 | (= 0 (port-column port)))) |
| 438 | |
| 439 | (pass-if "x\\a" |
| 440 | (let ((port (open-output-string))) |
| 441 | (display "x\a" port) |
| 442 | (= 1 (port-column port)))) |
| 443 | |
| 444 | (pass-if "\\x08 backspace" |
| 445 | (let ((port (open-output-string))) |
| 446 | (display "\x08" port) |
| 447 | (= 0 (port-column port)))) |
| 448 | |
| 449 | (pass-if "x\\x08 backspace" |
| 450 | (let ((port (open-output-string))) |
| 451 | (display "x\x08" port) |
| 452 | (= 0 (port-column port)))) |
| 453 | |
| 454 | (pass-if "\\n" |
| 455 | (let ((port (open-output-string))) |
| 456 | (display "\n" port) |
| 457 | (= 0 (port-column port)))) |
| 458 | |
| 459 | (pass-if "x\\n" |
| 460 | (let ((port (open-output-string))) |
| 461 | (display "x\n" port) |
| 462 | (= 0 (port-column port)))) |
| 463 | |
| 464 | (pass-if "\\r" |
| 465 | (let ((port (open-output-string))) |
| 466 | (display "\r" port) |
| 467 | (= 0 (port-column port)))) |
| 468 | |
| 469 | (pass-if "x\\r" |
| 470 | (let ((port (open-output-string))) |
| 471 | (display "x\r" port) |
| 472 | (= 0 (port-column port)))) |
| 473 | |
| 474 | (pass-if "\\t" |
| 475 | (let ((port (open-output-string))) |
| 476 | (display "\t" port) |
| 477 | (= 8 (port-column port)))) |
| 478 | |
| 479 | (pass-if "x\\t" |
| 480 | (let ((port (open-output-string))) |
| 481 | (display "x\t" port) |
| 482 | (= 8 (port-column port))))) |
| 483 | |
| 484 | (with-test-prefix "input" |
| 485 | |
| 486 | (pass-if "x" |
| 487 | (let ((port (open-input-string "x"))) |
| 488 | (while (not (eof-object? (read-char port)))) |
| 489 | (= 1 (port-column port)))) |
| 490 | |
| 491 | (pass-if "\\a" |
| 492 | (let ((port (open-input-string "\a"))) |
| 493 | (while (not (eof-object? (read-char port)))) |
| 494 | (= 0 (port-column port)))) |
| 495 | |
| 496 | (pass-if "x\\a" |
| 497 | (let ((port (open-input-string "x\a"))) |
| 498 | (while (not (eof-object? (read-char port)))) |
| 499 | (= 1 (port-column port)))) |
| 500 | |
| 501 | (pass-if "\\x08 backspace" |
| 502 | (let ((port (open-input-string "\x08"))) |
| 503 | (while (not (eof-object? (read-char port)))) |
| 504 | (= 0 (port-column port)))) |
| 505 | |
| 506 | (pass-if "x\\x08 backspace" |
| 507 | (let ((port (open-input-string "x\x08"))) |
| 508 | (while (not (eof-object? (read-char port)))) |
| 509 | (= 0 (port-column port)))) |
| 510 | |
| 511 | (pass-if "\\n" |
| 512 | (let ((port (open-input-string "\n"))) |
| 513 | (while (not (eof-object? (read-char port)))) |
| 514 | (= 0 (port-column port)))) |
| 515 | |
| 516 | (pass-if "x\\n" |
| 517 | (let ((port (open-input-string "x\n"))) |
| 518 | (while (not (eof-object? (read-char port)))) |
| 519 | (= 0 (port-column port)))) |
| 520 | |
| 521 | (pass-if "\\r" |
| 522 | (let ((port (open-input-string "\r"))) |
| 523 | (while (not (eof-object? (read-char port)))) |
| 524 | (= 0 (port-column port)))) |
| 525 | |
| 526 | (pass-if "x\\r" |
| 527 | (let ((port (open-input-string "x\r"))) |
| 528 | (while (not (eof-object? (read-char port)))) |
| 529 | (= 0 (port-column port)))) |
| 530 | |
| 531 | (pass-if "\\t" |
| 532 | (let ((port (open-input-string "\t"))) |
| 533 | (while (not (eof-object? (read-char port)))) |
| 534 | (= 8 (port-column port)))) |
| 535 | |
| 536 | (pass-if "x\\t" |
| 537 | (let ((port (open-input-string "x\t"))) |
| 538 | (while (not (eof-object? (read-char port)))) |
| 539 | (= 8 (port-column port)))))) |
| 540 | |
| 541 | ;;; |
| 542 | ;;; seek |
| 543 | ;;; |
| 544 | |
| 545 | (with-test-prefix "seek" |
| 546 | |
| 547 | (with-test-prefix "file port" |
| 548 | |
| 549 | (pass-if "SEEK_CUR" |
| 550 | (call-with-output-file (test-file) |
| 551 | (lambda (port) |
| 552 | (display "abcde" port))) |
| 553 | (let ((port (open-file (test-file) "r"))) |
| 554 | (read-char port) |
| 555 | (seek port 2 SEEK_CUR) |
| 556 | (eqv? #\d (read-char port)))) |
| 557 | |
| 558 | (pass-if "SEEK_SET" |
| 559 | (call-with-output-file (test-file) |
| 560 | (lambda (port) |
| 561 | (display "abcde" port))) |
| 562 | (let ((port (open-file (test-file) "r"))) |
| 563 | (read-char port) |
| 564 | (seek port 3 SEEK_SET) |
| 565 | (eqv? #\d (read-char port)))) |
| 566 | |
| 567 | (pass-if "SEEK_END" |
| 568 | (call-with-output-file (test-file) |
| 569 | (lambda (port) |
| 570 | (display "abcde" port))) |
| 571 | (let ((port (open-file (test-file) "r"))) |
| 572 | (read-char port) |
| 573 | (seek port -2 SEEK_END) |
| 574 | (eqv? #\d (read-char port)))))) |
| 575 | |
| 576 | ;;; |
| 577 | ;;; truncate-file |
| 578 | ;;; |
| 579 | |
| 580 | (with-test-prefix "truncate-file" |
| 581 | |
| 582 | (pass-if-exception "flonum file" exception:wrong-type-arg |
| 583 | (truncate-file 1.0 123)) |
| 584 | |
| 585 | (pass-if-exception "frac file" exception:wrong-type-arg |
| 586 | (truncate-file 7/3 123)) |
| 587 | |
| 588 | (with-test-prefix "filename" |
| 589 | |
| 590 | (pass-if-exception "flonum length" exception:wrong-type-arg |
| 591 | (call-with-output-file (test-file) |
| 592 | (lambda (port) |
| 593 | (display "hello" port))) |
| 594 | (truncate-file (test-file) 1.0)) |
| 595 | |
| 596 | (pass-if "shorten" |
| 597 | (call-with-output-file (test-file) |
| 598 | (lambda (port) |
| 599 | (display "hello" port))) |
| 600 | (truncate-file (test-file) 1) |
| 601 | (eqv? 1 (stat:size (stat (test-file))))) |
| 602 | |
| 603 | (pass-if-exception "shorten to current pos" exception:miscellaneous-error |
| 604 | (call-with-output-file (test-file) |
| 605 | (lambda (port) |
| 606 | (display "hello" port))) |
| 607 | (truncate-file (test-file)))) |
| 608 | |
| 609 | (with-test-prefix "file descriptor" |
| 610 | |
| 611 | (pass-if "shorten" |
| 612 | (call-with-output-file (test-file) |
| 613 | (lambda (port) |
| 614 | (display "hello" port))) |
| 615 | (let ((fd (open-fdes (test-file) O_RDWR))) |
| 616 | (truncate-file fd 1) |
| 617 | (close-fdes fd)) |
| 618 | (eqv? 1 (stat:size (stat (test-file))))) |
| 619 | |
| 620 | (pass-if "shorten to current pos" |
| 621 | (call-with-output-file (test-file) |
| 622 | (lambda (port) |
| 623 | (display "hello" port))) |
| 624 | (let ((fd (open-fdes (test-file) O_RDWR))) |
| 625 | (seek fd 1 SEEK_SET) |
| 626 | (truncate-file fd) |
| 627 | (close-fdes fd)) |
| 628 | (eqv? 1 (stat:size (stat (test-file)))))) |
| 629 | |
| 630 | (with-test-prefix "file port" |
| 631 | |
| 632 | (pass-if "shorten" |
| 633 | (call-with-output-file (test-file) |
| 634 | (lambda (port) |
| 635 | (display "hello" port))) |
| 636 | (let ((port (open-file (test-file) "r+"))) |
| 637 | (truncate-file port 1)) |
| 638 | (eqv? 1 (stat:size (stat (test-file))))) |
| 639 | |
| 640 | (pass-if "shorten to current pos" |
| 641 | (call-with-output-file (test-file) |
| 642 | (lambda (port) |
| 643 | (display "hello" port))) |
| 644 | (let ((port (open-file (test-file) "r+"))) |
| 645 | (read-char port) |
| 646 | (truncate-file port)) |
| 647 | (eqv? 1 (stat:size (stat (test-file))))))) |
| 648 | |
| 649 | |
| 650 | ;;;; testing read-delimited and friends |
| 651 | |
| 652 | (with-test-prefix "read-delimited!" |
| 653 | (let ((c (make-string 20 #\!))) |
| 654 | (call-with-input-string |
| 655 | "defdef\nghighi\n" |
| 656 | (lambda (port) |
| 657 | |
| 658 | (read-delimited! "\n" c port 'concat) |
| 659 | (pass-if "read-delimited! reads a first line" |
| 660 | (string=? c "defdef\n!!!!!!!!!!!!!")) |
| 661 | |
| 662 | (read-delimited! "\n" c port 'concat 3) |
| 663 | (pass-if "read-delimited! reads a first line" |
| 664 | (string=? c "defghighi\n!!!!!!!!!!")))))) |
| 665 | |
| 666 | \f |
| 667 | ;;;; char-ready? |
| 668 | |
| 669 | (call-with-input-string |
| 670 | "howdy" |
| 671 | (lambda (port) |
| 672 | (pass-if "char-ready? returns true on string port" |
| 673 | (char-ready? port)))) |
| 674 | |
| 675 | ;;; This segfaults on some versions of Guile. We really should run |
| 676 | ;;; the tests in a subprocess... |
| 677 | |
| 678 | (call-with-input-string |
| 679 | "howdy" |
| 680 | (lambda (port) |
| 681 | (with-input-from-port |
| 682 | port |
| 683 | (lambda () |
| 684 | (pass-if "char-ready? returns true on string port as default port" |
| 685 | (char-ready?)))))) |
| 686 | |
| 687 | \f |
| 688 | ;;;; Close current-input-port, and make sure everyone can handle it. |
| 689 | |
| 690 | (with-test-prefix "closing current-input-port" |
| 691 | (for-each (lambda (procedure name) |
| 692 | (with-input-from-port |
| 693 | (call-with-input-string "foo" (lambda (p) p)) |
| 694 | (lambda () |
| 695 | (close-port (current-input-port)) |
| 696 | (pass-if-exception name |
| 697 | exception:wrong-type-arg |
| 698 | (procedure))))) |
| 699 | (list read read-char read-line) |
| 700 | '("read" "read-char" "read-line"))) |
| 701 | |
| 702 | (delete-file (test-file)) |