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comparison: test/buffer_tests.c

test/buffer_tests.c

changeset 390
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1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "buffer_tests.h"
30 #include <stdint.h>
31
32 UCX_TEST(test_ucx_buffer_new) {
33 UcxBuffer *b = ucx_buffer_new(NULL, 16, UCX_BUFFER_AUTOEXTEND);
34 UcxBuffer *b2 = ucx_buffer_new(NULL, 32, UCX_BUFFER_DEFAULT);
35 UCX_TEST_BEGIN
36
37 UCX_TEST_ASSERT(b->capacity==16, "wrong capacity");
38 UCX_TEST_ASSERT(b2->capacity==32, "wrong capacity");
39
40 UCX_TEST_ASSERT(b->size==0, "wrong size");
41 UCX_TEST_ASSERT(b2->size==0, "wrong size");
42
43 UCX_TEST_ASSERT(b->pos==0, "wrong position");
44 UCX_TEST_ASSERT(b2->pos==0, "wrong position");
45
46 UCX_TEST_ASSERT(b->flags==(UCX_BUFFER_AUTOEXTEND|UCX_BUFFER_AUTOFREE),
47 "wrong flags for autoextending buffer");
48 UCX_TEST_ASSERT(b2->flags==UCX_BUFFER_AUTOFREE,
49 "wrong flags for default bufer");
50
51 UCX_TEST_END
52 ucx_buffer_free(b2);
53 ucx_buffer_free(b);
54 }
55
56 UCX_TEST(test_ucx_buffer_new_prealloc) {
57 char* test = (char*) malloc(16);
58 UcxBuffer *b = ucx_buffer_new(test, 16, UCX_BUFFER_DEFAULT);
59 UCX_TEST_BEGIN
60
61 UCX_TEST_ASSERT(b->capacity==16, "wrong capacity");
62 UCX_TEST_ASSERT(b->size==0, "wrong size");
63 UCX_TEST_ASSERT(b->pos==0, "wrong position");
64
65 UCX_TEST_ASSERT(b->flags==0, "wrong flags - all should be cleared");
66
67 UCX_TEST_END
68 free(test);
69 ucx_buffer_free(b);
70 }
71
72 UCX_TEST(test_ucx_buffer_eof) {
73 char *test = (char*)"0123456789ABCDEF";
74 UcxBuffer *b = ucx_buffer_new(test, 16, UCX_BUFFER_DEFAULT);
75 UCX_TEST_BEGIN
76 b->pos = 9; b->size = 10;
77 UCX_TEST_ASSERT(!ucx_buffer_eof(b), "false positive");
78 b->pos = 10; b->size = 10;
79 UCX_TEST_ASSERT(ucx_buffer_eof(b), "pos == size should be EOF");
80 b->pos = 11; b->size = 10;
81 UCX_TEST_ASSERT(ucx_buffer_eof(b), "false negative");
82 UCX_TEST_END
83 ucx_buffer_free(b);
84 }
85
86 UCX_TEST(test_ucx_buffer_seek_overflow) {
87 UcxBuffer *b = ucx_buffer_new(NULL, 32, UCX_BUFFER_DEFAULT);
88 b->size = 32;
89 int r;
90
91 UCX_TEST_BEGIN
92 const size_t sizemax = (size_t)-1;
93 size_t bigpos = sizemax - 5000;
94 b->pos = bigpos;
95 r = ucx_buffer_seek(b, 5016, SEEK_CUR);
96 UCX_TEST_ASSERT(r != 0, "seek cur overflow");
97 UCX_TEST_ASSERT(b->pos == bigpos,
98 "failed seek shall leave pos unchanged");
99
100 b->pos = 0;
101 b->size = (sizemax >> 1) + 32;
102
103 // we don't want to risk overflows in implicit constant casts
104 const size_t bigoff_comp = (sizemax >> 1) - 16;
105 off_t bigoff = (off_t)bigoff_comp;
106
107 r = ucx_buffer_seek(b, -bigoff, SEEK_CUR);
108 UCX_TEST_ASSERT(r != 0, "seek cur underflow");
109 UCX_TEST_ASSERT(b->pos == 0,
110 "failed seek shall leave pos unchanged");
111
112 UCX_TEST_END
113
114 ucx_buffer_free(b);
115 }
116
117 UCX_TEST(test_ucx_buffer_seek_invalid) {
118 UcxBuffer *b = ucx_buffer_new(NULL, 32, UCX_BUFFER_DEFAULT);
119 b->pos = 7;
120 int r;
121
122 UCX_TEST_BEGIN
123 r = ucx_buffer_seek(b, 0, ~(SEEK_SET|SEEK_CUR|SEEK_END));
124 UCX_TEST_ASSERT(r != 0, "invalid whence shall fail");
125 UCX_TEST_ASSERT(b->pos == 7,
126 "failed seek shall leave pos unchanged");
127 UCX_TEST_END
128
129 ucx_buffer_free(b);
130 }
131
132 UCX_TEST(test_ucx_buffer_seek_oob) {
133 UcxBuffer *b = ucx_buffer_new(NULL, 32, UCX_BUFFER_DEFAULT);
134 b->size = 16; // less than capacity
135 b->pos = 7;
136 int r;
137
138 UCX_TEST_BEGIN
139
140 r = ucx_buffer_seek(b, -1, SEEK_SET);
141 UCX_TEST_ASSERT(r != 0, "seek SET below bounds shall fail");
142 UCX_TEST_ASSERT(b->pos == 7,
143 "failed seek shall leave pos unchanged");
144
145 r = ucx_buffer_seek(b, 16, SEEK_SET);
146 UCX_TEST_ASSERT(r != 0, "seek SET above bounds shall fail");
147 UCX_TEST_ASSERT(b->pos == 7,
148 "failed seek shall leave pos unchanged");
149
150 r = ucx_buffer_seek(b, -8, SEEK_CUR);
151 UCX_TEST_ASSERT(r != 0, "seek CUR below bounds shall fail");
152 UCX_TEST_ASSERT(b->pos == 7,
153 "failed seek shall leave pos unchanged");
154
155 r = ucx_buffer_seek(b, 9, SEEK_CUR);
156 UCX_TEST_ASSERT(r != 0, "seek CUR above bounds shall fail");
157 UCX_TEST_ASSERT(b->pos == 7,
158 "failed seek shall leave pos unchanged");
159
160 r = ucx_buffer_seek(b, -17, SEEK_END);
161 UCX_TEST_ASSERT(r != 0, "seek END below bounds shall fail");
162 UCX_TEST_ASSERT(b->pos == 7,
163 "failed seek shall leave pos unchanged");
164
165 r = ucx_buffer_seek(b, 1, SEEK_END);
166 UCX_TEST_ASSERT(r != 0, "seek END above bounds shall fail");
167 UCX_TEST_ASSERT(b->pos == 7,
168 "failed seek shall leave pos unchanged");
169
170 UCX_TEST_END
171
172 ucx_buffer_free(b);
173 }
174
175 UCX_TEST(test_ucx_buffer_seek_set) {
176 UcxBuffer *b = ucx_buffer_new(NULL, 32, UCX_BUFFER_DEFAULT);
177 b->size = 16;
178 int r;
179
180 UCX_TEST_BEGIN
181
182 r = ucx_buffer_seek(b, 5, SEEK_SET);
183 UCX_TEST_ASSERT(r == 0, "seek SET+5 failed");
184 UCX_TEST_ASSERT(b->pos == 5, "seek SET+5 set wrong position");
185
186
187 r = ucx_buffer_seek(b, 10, SEEK_SET);
188 UCX_TEST_ASSERT(r == 0, "seek SET+10 failed");
189 UCX_TEST_ASSERT(b->pos == 10, "seek SET+10 set wrong position");
190
191 UCX_TEST_END
192
193 ucx_buffer_free(b);
194 }
195
196 UCX_TEST(test_ucx_buffer_seek_cur) {
197 UcxBuffer *b = ucx_buffer_new(NULL, 32, UCX_BUFFER_DEFAULT);
198 b->size = 16;
199 int r;
200
201 UCX_TEST_BEGIN
202
203 b->pos = 7;
204 r = ucx_buffer_seek(b, 5, SEEK_CUR);
205 UCX_TEST_ASSERT(r == 0, "seek CUR+5 failed");
206 UCX_TEST_ASSERT(b->pos == 12, "seek CUR+5 set wrong position");
207
208 UCX_TEST_END
209
210 ucx_buffer_free(b);
211 }
212
213 UCX_TEST(test_ucx_buffer_seek_end) {
214 UcxBuffer *b = ucx_buffer_new(NULL, 32, UCX_BUFFER_DEFAULT);
215 b->size = 16;
216 int r;
217
218 UCX_TEST_BEGIN
219
220 r = ucx_buffer_seek(b, -5, SEEK_END);
221 UCX_TEST_ASSERT(r == 0, "seek END-5 failed");
222 UCX_TEST_ASSERT(b->pos == 11, "seek END-5 set wrong position");
223
224
225 UCX_TEST_END
226
227 ucx_buffer_free(b);
228 }
229
230 UCX_TEST(test_ucx_buffer_putc) {
231 char *buffer = (char*) malloc(16);
232 memset(buffer, 32, 16);
233
234 UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
235 b->size = b->capacity;
236
237 UCX_TEST_BEGIN
238
239 ucx_buffer_seek(b, 0, SEEK_SET);
240 UCX_TEST_ASSERT(ucx_buffer_putc(b, '0'|~0xFF) == '0',
241 "putc shall return (arg & 0xFF)");
242 ucx_buffer_putc(b, '0');
243 ucx_buffer_putc(b, '0');
244
245 UCX_TEST_ASSERT(b->pos == 3, "pos wrong after first 3 puts");
246 ucx_buffer_seek(b, 10, SEEK_CUR);
247
248 ucx_buffer_putc(b, '0');
249 ucx_buffer_putc(b, '0');
250 ucx_buffer_putc(b, '0');
251
252 UCX_TEST_ASSERT(b->pos == 16, "pos wrong after last 3 puts");
253
254 UCX_TEST_ASSERT(!memcmp(b->space, "000 000", 16),
255 "buffer content wrong")
256 UCX_TEST_END
257 ucx_buffer_free(b);
258 free(buffer);
259 }
260
261 UCX_TEST(test_ucx_buffer_putc_oob) {
262 UcxBuffer *b = ucx_buffer_new(NULL, 2, UCX_BUFFER_DEFAULT);
263
264 UCX_TEST_BEGIN
265 b->pos = b->size = b->capacity = 1;
266 b->space[1] = 'X';
267
268 UCX_TEST_ASSERT(ucx_buffer_putc(b, 48) == EOF, "put shall return EOF "
269 "when buffer is full and auto extend is disabled");
270 UCX_TEST_ASSERT(!memcmp(b->space, "\0X", 2),
271 "wrong buffer content after failed putc");
272
273 UCX_TEST_END
274
275 ucx_buffer_free(b);
276 }
277
278
279 UCX_TEST(test_ucx_buffer_putc_ae) {
280 UcxBuffer *b = ucx_buffer_new(NULL, 2, UCX_BUFFER_AUTOEXTEND);
281 ucx_buffer_putc(b, '0');
282 ucx_buffer_putc(b, '1');
283
284 UCX_TEST_BEGIN
285
286 UCX_TEST_ASSERT(b->pos == 2, "pos wrong after first 2 puts");
287 UCX_TEST_ASSERT(b->size == 2, "size wrong after first 2 puts");
288 UCX_TEST_ASSERT(b->capacity == 2, "buffer erroneously extended");
289 UCX_TEST_ASSERT(!memcmp(b->space,"01", 2), "wrong content");
290
291 UCX_TEST_END
292
293 ucx_buffer_free(b);
294 }
295
296 UCX_TEST(test_ucx_buffer_putc_oobae) {
297 UcxBuffer *b = ucx_buffer_new(NULL, 2, UCX_BUFFER_AUTOEXTEND);
298 ucx_buffer_putc(b, '0');
299 ucx_buffer_putc(b, '1');
300
301 UCX_TEST_BEGIN
302
303 ucx_buffer_putc(b, 'a');
304
305 UCX_TEST_ASSERT(b->pos == 3, "pos wrong after put");
306 UCX_TEST_ASSERT(b->capacity == 4, "buffer not properly extended");
307 UCX_TEST_ASSERT(b->size == 3, "wrong buffer size");
308
309 UCX_TEST_ASSERT(!memcmp(b->space,"01a\0", 4), "wrong content");
310
311 UCX_TEST_END
312
313 ucx_buffer_free(b);
314 }
315
316 UCX_TEST(test_ucx_buffer_putc_size) {
317 UcxBuffer *b = ucx_buffer_new(NULL, 4, UCX_BUFFER_DEFAULT);
318
319 UCX_TEST_BEGIN
320
321 UCX_TEST_ASSERT(b->size == 0, "wrong initial size");
322 ucx_buffer_putc(b, 'a');
323 ucx_buffer_putc(b, 'b');
324 ucx_buffer_putc(b, 'c');
325 UCX_TEST_ASSERT(b->size == 3, "size does not increase");
326 ucx_buffer_seek(b, 1, SEEK_SET);
327 ucx_buffer_putc(b, 'd');
328 UCX_TEST_ASSERT(b->size == 3, "size shall not decrease");
329 UCX_TEST_ASSERT(b->pos == 2, "wrong position after seek and putc");
330
331 UCX_TEST_END
332
333 ucx_buffer_free(b);
334 }
335
336 UCX_TEST(test_ucx_buffer_getc) {
337 char *buffer = (char*) malloc(16);
338 memset(buffer, 32, 8);
339 for (int i = 8; i < 16 ; i++) {
340 buffer[i] = 40+i;
341 }
342
343 UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
344 b->size = b->capacity;
345
346 unsigned char ubuffer[] = {127, 128, 129, 130};
347 UcxBuffer *ub = ucx_buffer_new(ubuffer, 4, UCX_BUFFER_DEFAULT);
348 ub->size = 4;
349
350 UCX_TEST_BEGIN
351
352 char rb[16];
353 for (size_t i = 0 ; i < 16 ; i++) {
354 UCX_TEST_ASSERT(b->pos == i, "wrong position");
355 UCX_TEST_ASSERT(!ucx_buffer_eof(b), "EOF false positive");
356 rb[i] = ucx_buffer_getc(b);
357 }
358 UCX_TEST_ASSERT(memcmp(rb, " 01234567", 16) == 0,
359 "read data incorrect");
360
361 UCX_TEST_ASSERT(ucx_buffer_eof(b), "EOF not set after last possible read");
362 UCX_TEST_ASSERT(b->pos == 16, "wrong position after EOF");
363
364 UCX_TEST_ASSERT(ucx_buffer_getc(b) == EOF,
365 "out of bounds read does not return EOF");
366 UCX_TEST_ASSERT(b->pos == 16, "wrong position after out of bounds read");
367
368 int uc[5];
369 for(int i=0;i<5;i++) {
370 uc[i] = ucx_buffer_getc(ub);
371 }
372 UCX_TEST_ASSERT(uc[0] == 127, "wrong unsigned value(0)");
373 UCX_TEST_ASSERT(uc[1] == 128, "wrong unsigned value(0)");
374 UCX_TEST_ASSERT(uc[2] == 129, "wrong unsigned value(0)");
375 UCX_TEST_ASSERT(uc[3] == 130, "wrong unsigned value(0)");
376 UCX_TEST_ASSERT(uc[4] == EOF, "EOF not set after last ub read");
377
378 UCX_TEST_END
379
380 ucx_buffer_free(b);
381 ucx_buffer_free(ub);
382 free(buffer);
383 }
384
385 UCX_TEST(test_ucx_buffer_write) {
386 char *buffer = (char*) malloc(32);
387 memset(buffer, 0, 32);
388
389 memset(buffer, 32, 8);
390 for (int i = 8; i < 16 ; i++) {
391 buffer[i] = 40+i;
392 }
393
394 UcxBuffer *b = ucx_buffer_new(buffer, 32, UCX_BUFFER_DEFAULT);
395 int r;
396
397 UCX_TEST_BEGIN
398 b->pos = 4;
399 r = ucx_buffer_write("test string", 1, 11, b);
400 UCX_TEST_ASSERT(r == 11, "returned incorrect number of written bytes");
401 UCX_TEST_ASSERT(b->pos == 15, "incorrect position");
402 UCX_TEST_ASSERT(memcmp(buffer, " test string7\0\0", 18) == 0,
403 "incorrect buffer content (test string)");
404
405 r = ucx_buffer_write(".", 1, 1, b);
406 UCX_TEST_ASSERT(r == 1, "returned incorrect number of written elements");
407 UCX_TEST_ASSERT(b->pos == 16, "incorrect position");
408
409 int32_t testarr[4] = {0x09abcdef, 0x05fedcba, 0x01abefcd, 0x3cd07ab};
410 r = ucx_buffer_write(testarr, 4, 4, b);
411 UCX_TEST_ASSERT(r = 4, "returned incorrect number of written elements");
412 UCX_TEST_ASSERT(b->pos == 32, "incorrect position");
413
414 char cmp[32];
415 memset(cmp, 0, 32);
416 memcpy(cmp, " test string.", 16);
417 int32_t *ptr = (int32_t*) (cmp+16);
418 ptr[0] = testarr[0];
419 ptr[1] = testarr[1];
420 ptr[2] = testarr[2];
421 ptr[3] = testarr[3];
422 UCX_TEST_ASSERT(memcmp(buffer, cmp, 32) == 0,
423 "incorrect buffer content (int array)");
424
425 UCX_TEST_END
426
427 ucx_buffer_free(b);
428 free(buffer);
429 }
430
431 UCX_TEST(test_ucx_buffer_write_oob) {
432 char *buffer = (char*) malloc(32);
433 memset(buffer, 0, 32);
434
435 UcxBuffer *b = ucx_buffer_new(buffer, 15, UCX_BUFFER_DEFAULT);
436 int r;
437
438 UCX_TEST_BEGIN
439 r = ucx_buffer_write("a very long string", 1, 18, b);
440 UCX_TEST_ASSERT(r == 15, "incorrect number of written bytes");
441 UCX_TEST_ASSERT(memcmp(buffer, "a very long str\0\0\0", 18) == 0,
442 "invalid buffer content (test string)");
443
444 b->size = b->pos = 0;
445 int32_t intarr[4] = {0,-1,0,-1};
446 memset(buffer, 0, 32);
447
448 r = ucx_buffer_write(intarr, 4, 4, b);
449 UCX_TEST_ASSERT(r == 3, "incorrect number of written elements");
450 UCX_TEST_ASSERT(memcmp(buffer,
451 "\0\0\0\0\xff\xff\xff\xff\0\0\0\0\0\0\0\0", 16) == 0,
452 "invalid buffer content (test string)");
453
454 UCX_TEST_END
455
456 ucx_buffer_free(b);
457 free(buffer);
458 }
459
460 UCX_TEST(test_ucx_buffer_write_ax) {
461 char *buffer = (char*) malloc(16);
462 memset(buffer, 0, 16);
463
464 UcxBuffer *b = ucx_buffer_new(buffer, 16,
465 UCX_BUFFER_AUTOEXTEND | UCX_BUFFER_AUTOFREE);
466 int r;
467
468 UCX_TEST_BEGIN
469
470 const char* teststring = "this is way too much";
471 r = ucx_buffer_write((void*)teststring, 1, 20, b);
472 buffer = (char*) b->space; /*autoextend enabled, we MUST retrieve pointer*/
473 UCX_TEST_ASSERT(r == 20, "not all characters written");
474 UCX_TEST_ASSERT(b->capacity == 32, "buffer not properly extended");
475 UCX_TEST_ASSERT(b->pos == 20, "position incorrect");
476 UCX_TEST_ASSERT(memcmp(buffer,
477 "this is way too much\0\0\0\0\0\0\0\0\0\0\0\0", 32) == 0,
478 "incorrect buffer content");
479
480 UCX_TEST_END
481
482 ucx_buffer_free(b);
483 }
484
485 UCX_TEST(test_ucx_buffer_read) {
486 UcxBuffer *b = ucx_buffer_new(NULL, 8, UCX_BUFFER_AUTOFREE);
487 ucx_buffer_write("01234567", 1, 8, b);
488 b->pos = 0;
489
490 char buf[32];
491 memset(buf, 'X', 32);
492 int r;
493
494 UCX_TEST_BEGIN
495
496 ucx_buffer_seek(b, 2, SEEK_SET);
497 r = ucx_buffer_read(buf, 1, 2, b);
498 UCX_TEST_ASSERT(r == 2, "wrong number of bytes read (2 items)");
499 UCX_TEST_ASSERT(buf[0] == '2' && buf[1] == '3' && buf[2] == 'X',
500 "buffer incorrect after read");
501 UCX_TEST_ASSERT(b->pos == 4, "wrong position after read (2 items)");
502
503 UCX_TEST_END
504
505 ucx_buffer_free(b);
506 }
507
508 UCX_TEST(test_ucx_buffer_read_oob) {
509 UcxBuffer *b = ucx_buffer_new(NULL, 8, UCX_BUFFER_AUTOFREE);
510 ucx_buffer_write("01234567", 1, 8, b);
511
512 char buf[32];
513 memset(buf, 'X', 32);
514 int r;
515
516 UCX_TEST_BEGIN
517
518 b->pos = 2;
519 r = ucx_buffer_read(buf + 2, 1, 8, b);
520 UCX_TEST_ASSERT(r == 6, "wrong number of bytes read (8 items)");
521 UCX_TEST_ASSERT(memcmp(buf, "XX234567XX", 10) == 0,
522 "buffer incorrect after read");
523 UCX_TEST_ASSERT(b->pos == 8,
524 "wrong position after read (8 items out of bound)");
525
526 b->pos = 0;
527 memset(buf, 'X', 32);
528
529 r = ucx_buffer_read(buf, 3, 3, b);
530
531 UCX_TEST_ASSERT(r == 2, "wrong number of blocks read");
532 UCX_TEST_ASSERT(memcmp(buf, "012345XX", 8) == 0,
533 "buffer incorrect after block out of bounds read");
534
535 r = ucx_buffer_read(buf+6, 1, 5, b);
536
537 UCX_TEST_ASSERT(r == 2, "wrong number of remaining bytes read");
538 UCX_TEST_ASSERT(memcmp(buf, "01234567XX", 10) == 0,
539 "buffer incorrect after remaining byte read");
540
541 UCX_TEST_END
542
543 ucx_buffer_free(b);
544 }
545
546 UCX_TEST(test_ucx_buffer_extract) {
547 char *buffer = (char*) malloc(16);
548 strcpy(buffer, "this is a test!");
549
550 UcxBuffer *src = ucx_buffer_new(buffer, 16, UCX_BUFFER_AUTOFREE);
551 src->size = 16;
552 UcxBuffer *dst = ucx_buffer_extract(src, 5, 5, UCX_BUFFER_AUTOEXTEND);
553
554 UCX_TEST_BEGIN
555 UCX_TEST_ASSERT(dst != NULL, "ucx_buffer_extract returned NULL");
556 UCX_TEST_ASSERT(dst->flags == (UCX_BUFFER_AUTOEXTEND | UCX_BUFFER_AUTOFREE),
557 "autofree flag shall be enforced");
558 UCX_TEST_ASSERT(dst->size == 5, "wrong size for new buffer");
559 UCX_TEST_ASSERT(dst->capacity == 5, "wrong capacity for new buffer");
560 UCX_TEST_ASSERT(dst->pos == 0, "wrong position for new buffer");
561 char rb[5];
562 ucx_buffer_read(rb, 1, 5, dst);
563 UCX_TEST_ASSERT(memcmp(rb, "is a ", 5) == 0,
564 "new buffer has incorrect content");
565
566 UCX_TEST_END
567
568 ucx_buffer_free(dst);
569 ucx_buffer_free(src);
570 }
571
572 UCX_TEST(test_ucx_buffer_extract_oob) {
573 char *buffer = (char*) malloc(16);
574 strcpy(buffer, "this is a test!");
575
576 UcxBuffer *src = ucx_buffer_new(buffer, 16, UCX_BUFFER_AUTOFREE);
577 src->size = 16;
578
579 UCX_TEST_BEGIN
580
581 UCX_TEST_ASSERT(ucx_buffer_extract(src, 5, 0, UCX_BUFFER_DEFAULT) == NULL,
582 "extract shall fail on zero length");
583 UCX_TEST_ASSERT(ucx_buffer_extract(src, 10, 10, UCX_BUFFER_DEFAULT) == NULL,
584 "extract shall fail on invalid bounds (size exceeds limits)");
585 UCX_TEST_ASSERT(ucx_buffer_extract(src, 20, -7, UCX_BUFFER_DEFAULT) == NULL,
586 "extract shall fail on invalid bounds (start exceeds limits)");
587
588 UCX_TEST_END
589
590 ucx_buffer_free(src);
591 }
592
593 UCX_TEST(test_ucx_buffer_extract_overflow) {
594 char *buffer = (char*) malloc(16);
595 strcpy(buffer, "this is a test!");
596
597 UcxBuffer *src = ucx_buffer_new(buffer, 16, UCX_BUFFER_AUTOFREE);
598 src->size = 16;
599
600 UCX_TEST_BEGIN
601
602 UCX_TEST_ASSERT(ucx_buffer_extract(src, 5, (size_t)-4,
603 UCX_BUFFER_DEFAULT) == NULL, "extract shall fail on integer overflow");
604
605 UCX_TEST_END
606
607 ucx_buffer_free(src);
608 }
609
610 UCX_TEST(test_ucx_buffer_extend) {
611
612 UcxBuffer *b = ucx_buffer_new(NULL, 10, UCX_BUFFER_DEFAULT);
613
614 UCX_TEST_BEGIN
615
616 UCX_TEST_ASSERT(ucx_buffer_extend(b, 15) == 0, "shall return 0 on success");
617 UCX_TEST_ASSERT(b->capacity = 40, "wrong capacity");
618 UCX_TEST_ASSERT((b->size == 0 && b->pos == 0),
619 "pos and size shall remain unchanged");
620
621 UCX_TEST_ASSERT(ucx_buffer_extend(b, (size_t) - 61) != 0,
622 "shall fail and return a non-zero value on overflow");
623
624 UCX_TEST_END
625
626 ucx_buffer_free(b);
627 }
628
629 UCX_TEST(test_ucx_buffer_shl) {
630
631 const char* hw = "Shift the World!";
632
633 UcxBuffer *b = ucx_buffer_new(NULL, 20, UCX_BUFFER_DEFAULT);
634 ucx_buffer_puts(b, hw);
635 b->pos = 5;
636
637 UCX_TEST_BEGIN
638 char* expected;
639
640 ucx_buffer_shift_left(b, 2);
641 expected = "ift the World!";
642
643 UCX_TEST_ASSERT(b->pos == 3, "position after normal shl wrong");
644 UCX_TEST_ASSERT(b->size == strlen(expected), "size after normal shl wrong");
645 UCX_TEST_ASSERT(!memcmp(b->space, expected, b->size),
646 "contents after normal shl wrong");
647
648
649 ucx_buffer_shift_left(b, 5);
650 expected = "he World!";
651
652 UCX_TEST_ASSERT(b->pos == 0, "position after overshift left wrong");
653 UCX_TEST_ASSERT(b->size == strlen(expected),
654 "size after overshift left wrong");
655 UCX_TEST_ASSERT(!memcmp(b->space, expected, b->size),
656 "contents after overshift left wrong");
657
658 ucx_buffer_shift_left(b, 10);
659 UCX_TEST_ASSERT(b->pos == 0, "position after 'shl everything away' wrong");
660 UCX_TEST_ASSERT(b->size == 0, "size after 'shl everything away' wrong");
661
662 UCX_TEST_END
663
664 ucx_buffer_free(b);
665 }
666
667 UCX_TEST(test_ucx_buffer_shr) {
668
669 const char* hw = "Shift the World!";
670
671 UcxBuffer *b = ucx_buffer_new(NULL, 20, UCX_BUFFER_DEFAULT);
672 ucx_buffer_puts(b, hw);
673 b->pos = 12;
674
675 UCX_TEST_BEGIN
676 char* expected;
677
678 ucx_buffer_shift_right(b, 2);
679 expected = "ShShift the World!";
680
681 UCX_TEST_ASSERT(b->pos == 14, "position after normal shr wrong");
682 UCX_TEST_ASSERT(b->size == strlen(expected), "size after normal shr wrong");
683 UCX_TEST_ASSERT(!memcmp(b->space, expected, b->size),
684 "contents after normal shr wrong");
685
686
687 ucx_buffer_shift_right(b, 5);
688 expected = "ShShiShShift the Wor";
689 UCX_TEST_ASSERT(strlen(expected) == b->capacity,
690 "Test data is wrong, please fix the test.");
691
692 UCX_TEST_ASSERT(b->pos == 19,
693 "position after overshift right w/o auto-extend wrong");
694 UCX_TEST_ASSERT(b->size == 20,
695 "size after overshift right w/o auto-extend wrong");
696 UCX_TEST_ASSERT(b->capacity == 20,
697 "capacity after overshift right w/o auto-extend wrong");
698 UCX_TEST_ASSERT(!memcmp(b->space, expected, b->size),
699 "contents after overshift right w/o auto-extend wrong");
700
701 ucx_buffer_shift_right(b, 15);
702 UCX_TEST_ASSERT(b->pos == b->capacity, "position after 'shr to eof' wrong");
703 UCX_TEST_ASSERT(b->size == b->capacity, "size after 'shr to eof' wrong");
704 UCX_TEST_ASSERT(ucx_buffer_eof(b), "buffer not eof after 'shr to eof'");
705
706 UCX_TEST_END
707
708 ucx_buffer_free(b);
709 }
710
711 UCX_TEST(test_ucx_buffer_shr_ax) {
712
713 const char* hw = "Shift the World!";
714
715 UcxBuffer *b = ucx_buffer_new(NULL, 20, UCX_BUFFER_AUTOEXTEND);
716 ucx_buffer_puts(b, hw);
717 b->pos = 12;
718
719 UCX_TEST_BEGIN
720
721 const char* expected = "Shift the Shift the World!";
722
723 ucx_buffer_shift_right(b, 10);
724 UCX_TEST_ASSERT(b->pos == 22, "position after shr w/ auto-extend wrong");
725 UCX_TEST_ASSERT(b->size == strlen(expected),
726 "size after shr w/ auto-extend wrong");
727 UCX_TEST_ASSERT(b->capacity >= b->size,
728 "auto-extension of capacity after shr w/ auto-extend failed");
729 UCX_TEST_ASSERT(!ucx_buffer_eof(b),
730 "buffer should not be eof after shr w/ auto-extend");
731 UCX_TEST_ASSERT(!memcmp(b->space, expected, b->size),
732 "contents wrong after shr w/ auto-extend");
733
734 UCX_TEST_END
735
736 ucx_buffer_free(b);
737 }
738

Mercurial Repository: ucx

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