test/buffer_tests.c@2f5dea574a75
test/buffer_tests.c
Sat, 28 Oct 2017 15:43:51 +0200
- author
- Mike Becker <universe@uap-core.de>
- date
- Sat, 28 Oct 2017 15:43:51 +0200
- changeset 259
- 2f5dea574a75
- parent 250
- b7d1317b138e
- child 269
- 591473851c95
- permissions
- -rw-r--r--
modules documentation
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 */
29 #include "buffer_tests.h"
30 #include <stdint.h>
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
37 UCX_TEST_ASSERT(b->capacity==16, "wrong capacity");
38 UCX_TEST_ASSERT(b2->capacity==32, "wrong capacity");
40 UCX_TEST_ASSERT(b->size==0, "wrong size");
41 UCX_TEST_ASSERT(b2->size==0, "wrong size");
43 UCX_TEST_ASSERT(b->pos==0, "wrong position");
44 UCX_TEST_ASSERT(b2->pos==0, "wrong position");
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");
51 UCX_TEST_END
52 ucx_buffer_free(b2);
53 ucx_buffer_free(b);
54 }
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
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");
65 UCX_TEST_ASSERT(b->flags==0, "wrong flags - all should be cleared");
67 UCX_TEST_END
68 free(test);
69 ucx_buffer_free(b);
70 }
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 }
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;
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");
100 b->pos = 0;
101 b->size = (sizemax >> 1) + 32;
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;
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");
112 UCX_TEST_END
114 ucx_buffer_free(b);
115 }
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;
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
129 ucx_buffer_free(b);
130 }
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;
138 UCX_TEST_BEGIN
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");
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");
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");
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");
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");
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");
170 UCX_TEST_END
172 ucx_buffer_free(b);
173 }
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;
180 UCX_TEST_BEGIN
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");
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");
191 UCX_TEST_END
193 ucx_buffer_free(b);
194 }
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;
201 UCX_TEST_BEGIN
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");
208 UCX_TEST_END
210 ucx_buffer_free(b);
211 }
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;
218 UCX_TEST_BEGIN
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");
225 UCX_TEST_END
227 ucx_buffer_free(b);
228 }
230 UCX_TEST(test_ucx_buffer_putc) {
231 char *buffer = (char*) malloc(16);
232 memset(buffer, 32, 16);
234 UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
235 b->size = b->capacity;
237 UCX_TEST_BEGIN
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');
245 UCX_TEST_ASSERT(b->pos == 3, "pos wrong after first 3 puts");
246 ucx_buffer_seek(b, 10, SEEK_CUR);
248 ucx_buffer_putc(b, '0');
249 ucx_buffer_putc(b, '0');
250 ucx_buffer_putc(b, '0');
252 UCX_TEST_ASSERT(b->pos == 16, "pos wrong after last 3 puts");
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 }
261 UCX_TEST(test_ucx_buffer_putc_oob) {
262 UcxBuffer *b = ucx_buffer_new(NULL, 2, UCX_BUFFER_DEFAULT);
264 UCX_TEST_BEGIN
265 b->pos = b->size = b->capacity = 1;
266 b->space[1] = 'X';
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");
273 UCX_TEST_END
275 ucx_buffer_free(b);
276 }
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');
284 UCX_TEST_BEGIN
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");
291 UCX_TEST_END
293 ucx_buffer_free(b);
294 }
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');
301 UCX_TEST_BEGIN
303 ucx_buffer_putc(b, 'a');
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");
309 UCX_TEST_ASSERT(!memcmp(b->space,"01a\0", 4), "wrong content");
311 UCX_TEST_END
313 ucx_buffer_free(b);
314 }
316 UCX_TEST(test_ucx_buffer_putc_size) {
317 UcxBuffer *b = ucx_buffer_new(NULL, 4, UCX_BUFFER_DEFAULT);
319 UCX_TEST_BEGIN
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");
331 UCX_TEST_END
333 ucx_buffer_free(b);
334 }
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 }
343 UcxBuffer *b = ucx_buffer_new(buffer, 16, UCX_BUFFER_DEFAULT);
344 b->size = b->capacity;
346 UCX_TEST_BEGIN
348 char rb[16];
349 for (size_t i = 0 ; i < 16 ; i++) {
350 UCX_TEST_ASSERT(b->pos == i, "wrong position");
351 UCX_TEST_ASSERT(!ucx_buffer_eof(b), "EOF false positive");
352 rb[i] = ucx_buffer_getc(b);
353 }
354 UCX_TEST_ASSERT(memcmp(rb, " 01234567", 16) == 0,
355 "read data incorrect");
357 UCX_TEST_ASSERT(ucx_buffer_eof(b), "EOF not set after last possible read");
358 UCX_TEST_ASSERT(b->pos == 16, "wrong position after EOF");
360 UCX_TEST_ASSERT(ucx_buffer_getc(b) == EOF,
361 "out of bounds read does not return EOF");
362 UCX_TEST_ASSERT(b->pos == 16, "wrong position after out of bounds read");
364 UCX_TEST_END
366 ucx_buffer_free(b);
367 free(buffer);
368 }
370 UCX_TEST(test_ucx_buffer_write) {
371 char *buffer = (char*) malloc(32);
372 memset(buffer, 0, 32);
374 memset(buffer, 32, 8);
375 for (int i = 8; i < 16 ; i++) {
376 buffer[i] = 40+i;
377 }
379 UcxBuffer *b = ucx_buffer_new(buffer, 32, UCX_BUFFER_DEFAULT);
380 int r;
382 UCX_TEST_BEGIN
383 b->pos = 4;
384 r = ucx_buffer_write("test string", 1, 11, b);
385 UCX_TEST_ASSERT(r == 11, "returned incorrect number of written bytes");
386 UCX_TEST_ASSERT(b->pos == 15, "incorrect position");
387 UCX_TEST_ASSERT(memcmp(buffer, " test string7\0\0", 18) == 0,
388 "incorrect buffer content (test string)");
390 r = ucx_buffer_write(".", 1, 1, b);
391 UCX_TEST_ASSERT(r == 1, "returned incorrect number of written elements");
392 UCX_TEST_ASSERT(b->pos == 16, "incorrect position");
394 int32_t testarr[4] = {0x09abcdef, 0x05fedcba, 0x01abefcd, 0x3cd07ab};
395 r = ucx_buffer_write(testarr, 4, 4, b);
396 UCX_TEST_ASSERT(r = 4, "returned incorrect number of written elements");
397 UCX_TEST_ASSERT(b->pos == 32, "incorrect position");
399 char cmp[32];
400 memset(cmp, 0, 32);
401 memcpy(cmp, " test string.", 16);
402 int32_t *ptr = (int32_t*) (cmp+16);
403 ptr[0] = testarr[0];
404 ptr[1] = testarr[1];
405 ptr[2] = testarr[2];
406 ptr[3] = testarr[3];
407 UCX_TEST_ASSERT(memcmp(buffer, cmp, 32) == 0,
408 "incorrect buffer content (int array)");
410 UCX_TEST_END
412 ucx_buffer_free(b);
413 free(buffer);
414 }
416 UCX_TEST(test_ucx_buffer_write_oob) {
417 char *buffer = (char*) malloc(32);
418 memset(buffer, 0, 32);
420 UcxBuffer *b = ucx_buffer_new(buffer, 15, UCX_BUFFER_DEFAULT);
421 int r;
423 UCX_TEST_BEGIN
424 r = ucx_buffer_write("a very long string", 1, 18, b);
425 UCX_TEST_ASSERT(r == 15, "incorrect number of written bytes");
426 UCX_TEST_ASSERT(memcmp(buffer, "a very long str\0\0\0", 18) == 0,
427 "invalid buffer content (test string)");
429 b->size = b->pos = 0;
430 int32_t intarr[4] = {0,-1,0,-1};
431 memset(buffer, 0, 32);
433 r = ucx_buffer_write(intarr, 4, 4, b);
434 UCX_TEST_ASSERT(r == 3, "incorrect number of written elements");
435 UCX_TEST_ASSERT(memcmp(buffer,
436 "\0\0\0\0\xff\xff\xff\xff\0\0\0\0\0\0\0\0", 16) == 0,
437 "invalid buffer content (test string)");
439 UCX_TEST_END
441 ucx_buffer_free(b);
442 free(buffer);
443 }
445 UCX_TEST(test_ucx_buffer_write_ax) {
446 char *buffer = (char*) malloc(16);
447 memset(buffer, 0, 16);
449 UcxBuffer *b = ucx_buffer_new(buffer, 16,
450 UCX_BUFFER_AUTOEXTEND | UCX_BUFFER_AUTOFREE);
451 int r;
453 UCX_TEST_BEGIN
455 const char* teststring = "this is way too much";
456 r = ucx_buffer_write((void*)teststring, 1, 20, b);
457 buffer = (char*) b->space; /*autoextend enabled, we MUST retrieve pointer*/
458 UCX_TEST_ASSERT(r == 20, "not all characters written");
459 UCX_TEST_ASSERT(b->capacity == 32, "buffer not properly extended");
460 UCX_TEST_ASSERT(b->pos == 20, "position incorrect");
461 UCX_TEST_ASSERT(memcmp(buffer,
462 "this is way too much\0\0\0\0\0\0\0\0\0\0\0\0", 32) == 0,
463 "incorrect buffer content");
465 UCX_TEST_END
467 ucx_buffer_free(b);
468 }
470 UCX_TEST(test_ucx_buffer_read) {
471 UcxBuffer *b = ucx_buffer_new(NULL, 8, UCX_BUFFER_AUTOFREE);
472 ucx_buffer_write("01234567", 1, 8, b);
473 b->pos = 0;
475 char buf[32];
476 memset(buf, 'X', 32);
477 int r;
479 UCX_TEST_BEGIN
481 ucx_buffer_seek(b, 2, SEEK_SET);
482 r = ucx_buffer_read(buf, 1, 2, b);
483 UCX_TEST_ASSERT(r == 2, "wrong number of bytes read (2 items)");
484 UCX_TEST_ASSERT(buf[0] == '2' && buf[1] == '3' && buf[2] == 'X',
485 "buffer incorrect after read");
486 UCX_TEST_ASSERT(b->pos == 4, "wrong position after read (2 items)");
488 UCX_TEST_END
490 ucx_buffer_free(b);
491 }
493 UCX_TEST(test_ucx_buffer_read_oob) {
494 UcxBuffer *b = ucx_buffer_new(NULL, 8, UCX_BUFFER_AUTOFREE);
495 ucx_buffer_write("01234567", 1, 8, b);
497 char buf[32];
498 memset(buf, 'X', 32);
499 int r;
501 UCX_TEST_BEGIN
503 b->pos = 2;
504 r = ucx_buffer_read(buf + 2, 1, 8, b);
505 UCX_TEST_ASSERT(r == 6, "wrong number of bytes read (8 items)");
506 UCX_TEST_ASSERT(memcmp(buf, "XX234567XX", 10) == 0,
507 "buffer incorrect after read");
508 UCX_TEST_ASSERT(b->pos == 8,
509 "wrong position after read (8 items out of bound)");
511 b->pos = 0;
512 memset(buf, 'X', 32);
514 r = ucx_buffer_read(buf, 3, 3, b);
516 UCX_TEST_ASSERT(r == 2, "wrong number of blocks read");
517 UCX_TEST_ASSERT(memcmp(buf, "012345XX", 8) == 0,
518 "buffer incorrect after block out of bounds read");
520 r = ucx_buffer_read(buf+6, 1, 5, b);
522 UCX_TEST_ASSERT(r == 2, "wrong number of remaining bytes read");
523 UCX_TEST_ASSERT(memcmp(buf, "01234567XX", 10) == 0,
524 "buffer incorrect after remaining byte read");
526 UCX_TEST_END
528 ucx_buffer_free(b);
529 }
531 UCX_TEST(test_ucx_buffer_extract) {
532 char *buffer = (char*) malloc(16);
533 strcpy(buffer, "this is a test!");
535 UcxBuffer *src = ucx_buffer_new(buffer, 16, UCX_BUFFER_AUTOFREE);
536 src->size = 16;
537 UcxBuffer *dst = ucx_buffer_extract(src, 5, 5, UCX_BUFFER_AUTOEXTEND);
539 UCX_TEST_BEGIN
540 UCX_TEST_ASSERT(dst != NULL, "ucx_buffer_extract returned NULL");
541 UCX_TEST_ASSERT(dst->flags == (UCX_BUFFER_AUTOEXTEND | UCX_BUFFER_AUTOFREE),
542 "autofree flag shall be enforced");
543 UCX_TEST_ASSERT(dst->size == 5, "wrong size for new buffer");
544 UCX_TEST_ASSERT(dst->capacity == 5, "wrong capacity for new buffer");
545 UCX_TEST_ASSERT(dst->pos == 0, "wrong position for new buffer");
546 char rb[5];
547 ucx_buffer_read(rb, 1, 5, dst);
548 UCX_TEST_ASSERT(memcmp(rb, "is a ", 5) == 0,
549 "new buffer has incorrect content");
551 UCX_TEST_END
553 ucx_buffer_free(dst);
554 ucx_buffer_free(src);
555 }
557 UCX_TEST(test_ucx_buffer_extract_oob) {
558 char *buffer = (char*) malloc(16);
559 strcpy(buffer, "this is a test!");
561 UcxBuffer *src = ucx_buffer_new(buffer, 16, UCX_BUFFER_AUTOFREE);
562 src->size = 16;
564 UCX_TEST_BEGIN
566 UCX_TEST_ASSERT(ucx_buffer_extract(src, 5, 0, UCX_BUFFER_DEFAULT) == NULL,
567 "extract shall fail on zero length");
568 UCX_TEST_ASSERT(ucx_buffer_extract(src, 10, 10, UCX_BUFFER_DEFAULT) == NULL,
569 "extract shall fail on invalid bounds (size exceeds limits)");
570 UCX_TEST_ASSERT(ucx_buffer_extract(src, 20, -7, UCX_BUFFER_DEFAULT) == NULL,
571 "extract shall fail on invalid bounds (start exceeds limits)");
573 UCX_TEST_END
575 ucx_buffer_free(src);
576 }
578 UCX_TEST(test_ucx_buffer_extract_overflow) {
579 char *buffer = (char*) malloc(16);
580 strcpy(buffer, "this is a test!");
582 UcxBuffer *src = ucx_buffer_new(buffer, 16, UCX_BUFFER_AUTOFREE);
583 src->size = 16;
585 UCX_TEST_BEGIN
587 UCX_TEST_ASSERT(ucx_buffer_extract(src, 5, (size_t)-4,
588 UCX_BUFFER_DEFAULT) == NULL, "extract shall fail on integer overflow");
590 UCX_TEST_END
592 ucx_buffer_free(src);
593 }
595 UCX_TEST(test_ucx_buffer_extend) {
597 UcxBuffer *b = ucx_buffer_new(NULL, 10, UCX_BUFFER_DEFAULT);
599 UCX_TEST_BEGIN
601 UCX_TEST_ASSERT(ucx_buffer_extend(b, 15) == 0, "shall return 0 on success");
602 UCX_TEST_ASSERT(b->capacity = 40, "wrong capacity");
603 UCX_TEST_ASSERT((b->size == 0 && b->pos == 0),
604 "pos and size shall remain unchanged");
606 UCX_TEST_ASSERT(ucx_buffer_extend(b, (size_t) - 61) != 0,
607 "shall fail and return a non-zero value on overflow");
609 UCX_TEST_END
611 ucx_buffer_free(b);
612 }
