3 * unit test for GstBuffer
5 * Copyright (C) <2005> Thomas Vander Stichele <thomas at apestaart dot org>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 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 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
27 #ifdef HAVE_VALGRIND_H
28 # include <valgrind/valgrind.h>
30 # define RUNNING_ON_VALGRIND FALSE
33 #include <gst/check/gstcheck.h>
35 GST_START_TEST (test_subbuffer)
37 GstBuffer *buffer, *sub;
38 gsize size, maxsize, ssize;
41 buffer = gst_buffer_new_and_alloc (4);
43 /* check sizes, buffer starts out empty */
44 data = gst_buffer_map (buffer, &size, &maxsize, GST_MAP_WRITE);
45 fail_unless (size == 4, "buffer has wrong size");
46 fail_unless (maxsize >= 4, "buffer has wrong size");
48 gst_buffer_unmap (buffer, data, 4);
50 data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
51 /* set some metadata */
52 GST_BUFFER_TIMESTAMP (buffer) = 1;
53 GST_BUFFER_DURATION (buffer) = 2;
54 GST_BUFFER_OFFSET (buffer) = 3;
55 GST_BUFFER_OFFSET_END (buffer) = 4;
57 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 2);
58 fail_if (sub == NULL, "copy region of buffer returned NULL");
60 sdata = gst_buffer_map (sub, &ssize, NULL, GST_MAP_READ);
61 fail_unless (ssize == 2, "subbuffer has wrong size");
62 fail_unless (memcmp (data + 1, sdata, 2) == 0,
63 "subbuffer contains the wrong data");
64 ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
65 fail_unless (GST_BUFFER_TIMESTAMP (sub) == -1,
66 "subbuffer has wrong timestamp");
67 fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
68 fail_unless (GST_BUFFER_OFFSET (sub) == -1, "subbuffer has wrong offset");
69 fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
70 "subbuffer has wrong offset end");
71 gst_buffer_unmap (sub, sdata, ssize);
72 gst_buffer_unref (sub);
74 /* create a subbuffer of size 0 */
75 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 1, 0);
76 fail_if (sub == NULL, "copy_region of buffer returned NULL");
77 sdata = gst_buffer_map (sub, &ssize, NULL, GST_MAP_READ);
78 fail_unless (ssize == 0, "subbuffer has wrong size");
79 fail_unless (memcmp (data + 1, sdata, 0) == 0,
80 "subbuffer contains the wrong data");
81 ASSERT_BUFFER_REFCOUNT (sub, "subbuffer", 1);
82 gst_buffer_unmap (sub, sdata, ssize);
83 gst_buffer_unref (sub);
85 /* test if metadata is coppied, not a complete buffer copy so only the
86 * timestamp and offset fields are copied. */
87 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 1);
88 fail_if (sub == NULL, "copy_region of buffer returned NULL");
89 fail_unless (gst_buffer_get_size (sub) == 1, "subbuffer has wrong size");
90 fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
91 "subbuffer has wrong timestamp");
92 fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
93 fail_unless (GST_BUFFER_DURATION (sub) == -1, "subbuffer has wrong duration");
94 fail_unless (GST_BUFFER_OFFSET_END (sub) == -1,
95 "subbuffer has wrong offset end");
96 gst_buffer_unref (sub);
98 /* test if metadata is coppied, a complete buffer is copied so all the timing
99 * fields should be copied. */
100 sub = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 4);
101 fail_if (sub == NULL, "copy_region of buffer returned NULL");
102 fail_unless (gst_buffer_get_size (sub) == 4, "subbuffer has wrong size");
103 fail_unless (GST_BUFFER_TIMESTAMP (sub) == 1,
104 "subbuffer has wrong timestamp");
105 fail_unless (GST_BUFFER_DURATION (sub) == 2, "subbuffer has wrong duration");
106 fail_unless (GST_BUFFER_OFFSET (sub) == 3, "subbuffer has wrong offset");
107 fail_unless (GST_BUFFER_OFFSET_END (sub) == 4,
108 "subbuffer has wrong offset end");
111 gst_buffer_unref (sub);
113 gst_buffer_unmap (buffer, data, size);
114 gst_buffer_unref (buffer);
119 GST_START_TEST (test_is_span_fast)
121 GstBuffer *buffer, *sub1, *sub2;
123 buffer = gst_buffer_new_and_alloc (4);
125 sub1 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 2);
126 fail_if (sub1 == NULL, "copy_region of buffer returned NULL");
128 sub2 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 2, 2);
129 fail_if (sub2 == NULL, "copy_region of buffer returned NULL");
131 fail_if (gst_buffer_is_span_fast (buffer, sub2) == TRUE,
132 "a parent buffer can't be span_fasted");
134 fail_if (gst_buffer_is_span_fast (sub1, buffer) == TRUE,
135 "a parent buffer can't be span_fasted");
137 fail_if (gst_buffer_is_span_fast (sub1, sub2) == FALSE,
138 "two subbuffers next to each other should be span_fast");
141 gst_buffer_unref (sub1);
142 gst_buffer_unref (sub2);
143 gst_buffer_unref (buffer);
148 GST_START_TEST (test_span)
150 GstBuffer *buffer, *sub1, *sub2, *span;
154 buffer = gst_buffer_new_and_alloc (4);
156 data = gst_buffer_map (buffer, &size, NULL, GST_MAP_WRITE);
157 memcpy (data, "data", 4);
158 gst_buffer_unmap (buffer, data, 4);
160 ASSERT_CRITICAL (gst_buffer_span (NULL, 1, NULL, 2));
161 ASSERT_CRITICAL (gst_buffer_span (buffer, 1, NULL, 2));
162 ASSERT_CRITICAL (gst_buffer_span (NULL, 1, buffer, 2));
163 ASSERT_CRITICAL (gst_buffer_span (buffer, 0, buffer, 10));
165 sub1 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 0, 2);
166 fail_if (sub1 == NULL, "copy_region of buffer returned NULL");
168 sub2 = gst_buffer_copy_region (buffer, GST_BUFFER_COPY_ALL, 2, 2);
169 fail_if (sub2 == NULL, "copy_region of buffer returned NULL");
171 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
172 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
173 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
175 /* span will create a new subbuffer from the parent */
176 span = gst_buffer_span (sub1, 0, sub2, 4);
177 data = gst_buffer_map (span, &size, NULL, GST_MAP_READ);
178 fail_unless (size == 4, "spanned buffer is wrong size");
179 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
180 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
181 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
182 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
183 fail_unless (memcmp (data, "data", 4) == 0,
184 "spanned buffer contains the wrong data");
185 gst_buffer_unmap (span, data, size);
186 gst_buffer_unref (span);
187 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
189 /* span from non-contiguous buffers will create new buffers */
190 span = gst_buffer_span (sub2, 0, sub1, 4);
191 data = gst_buffer_map (span, &size, NULL, GST_MAP_READ);
192 fail_unless (size == 4, "spanned buffer is wrong size");
193 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
194 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
195 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
196 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
197 fail_unless (memcmp (data, "tada", 4) == 0,
198 "spanned buffer contains the wrong data");
199 gst_buffer_unmap (span, data, size);
200 gst_buffer_unref (span);
201 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
203 /* span with different sizes */
204 span = gst_buffer_span (sub1, 1, sub2, 3);
205 data = gst_buffer_map (span, &size, NULL, GST_MAP_READ);
206 fail_unless (size == 3, "spanned buffer is wrong size");
207 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
208 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
209 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
210 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
211 fail_unless (memcmp (data, "ata", 3) == 0,
212 "spanned buffer contains the wrong data");
213 gst_buffer_unmap (span, data, size);
214 gst_buffer_unref (span);
215 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
217 span = gst_buffer_span (sub2, 0, sub1, 3);
218 data = gst_buffer_map (span, &size, NULL, GST_MAP_READ);
219 fail_unless (size == 3, "spanned buffer is wrong size");
220 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
221 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
222 ASSERT_BUFFER_REFCOUNT (sub2, "sub2", 1);
223 ASSERT_BUFFER_REFCOUNT (span, "span", 1);
224 fail_unless (memcmp (data, "tad", 3) == 0,
225 "spanned buffer contains the wrong data");
226 gst_buffer_unmap (span, data, size);
227 gst_buffer_unref (span);
228 ASSERT_BUFFER_REFCOUNT (buffer, "parent", 1);
231 gst_buffer_unref (sub1);
232 gst_buffer_unref (sub2);
233 gst_buffer_unref (buffer);
239 static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
242 create_read_only_buffer (void)
246 buf = gst_buffer_new ();
248 /* assign some read-only data to the new buffer */
249 gst_buffer_take_memory (buf, -1,
250 gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
251 (gpointer) ro_memory, NULL,
252 sizeof (ro_memory), 0, sizeof (ro_memory)));
257 GST_START_TEST (test_make_writable)
259 GstBuffer *buf, *buf2;
263 /* create read-only buffer and make it writable */
264 buf = create_read_only_buffer ();
266 data = gst_buffer_map (buf, &size, NULL, GST_MAP_WRITE);
268 gst_buffer_unmap (buf, data, size);
269 gst_buffer_unref (buf);
271 /* alloc'ed buffer with refcount 1 should be writable */
272 buf = gst_buffer_new_and_alloc (32);
273 buf2 = gst_buffer_make_writable (buf);
274 fail_unless (buf == buf2,
275 "_make_writable() should have returned same buffer");
276 gst_buffer_unref (buf2);
278 /* alloc'ed buffer with refcount >1 should be copied */
279 buf = gst_buffer_new_and_alloc (32);
280 gst_buffer_ref (buf);
281 buf2 = gst_buffer_make_writable (buf);
282 fail_unless (buf != buf2, "_make_writable() should have returned a copy!");
283 gst_buffer_unref (buf2);
284 gst_buffer_unref (buf);
289 GST_START_TEST (test_subbuffer_make_writable)
291 GstBuffer *buf, *sub_buf;
295 /* create sub-buffer of read-only buffer and make it writable */
296 buf = create_read_only_buffer ();
298 sub_buf = gst_buffer_copy_region (buf, GST_BUFFER_COPY_ALL, 0, 8);
300 data = gst_buffer_map (sub_buf, &size, NULL, GST_MAP_WRITE);
301 fail_if (data == NULL);
303 gst_buffer_unmap (sub_buf, data, size);
304 gst_buffer_unref (sub_buf);
305 gst_buffer_unref (buf);
310 GST_START_TEST (test_metadata_writable)
312 GstBuffer *buffer, *sub1;
314 buffer = gst_buffer_new_and_alloc (4);
315 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
316 GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT);
318 /* Buffer with refcount 1 should have writable metadata */
319 fail_unless (gst_buffer_is_writable (buffer) == TRUE);
321 /* Check that a buffer with refcount 2 does not have writable metadata */
322 gst_buffer_ref (buffer);
323 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 2);
324 fail_unless (gst_buffer_is_writable (buffer) == FALSE);
326 /* Check that make_metadata_writable produces a new sub-buffer with
327 * writable metadata. */
328 sub1 = gst_buffer_make_writable (buffer);
329 fail_if (sub1 == buffer);
330 fail_unless (gst_buffer_is_writable (sub1) == TRUE);
332 /* Check that make_metadata_writable() maintains the buffer flags */
333 fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DISCONT));
334 fail_unless (GST_BUFFER_FLAG_IS_SET (sub1, GST_BUFFER_FLAG_DELTA_UNIT));
336 /* Unset flags on writable buffer, then make sure they're still
337 * set on the original buffer */
338 GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DISCONT);
339 GST_BUFFER_FLAG_UNSET (sub1, GST_BUFFER_FLAG_DELTA_UNIT);
340 fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT));
341 fail_unless (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT));
343 /* Drop the subbuffer and check that the metadata is now writable again */
344 ASSERT_BUFFER_REFCOUNT (sub1, "sub1", 1);
345 gst_buffer_unref (sub1);
346 fail_unless (gst_buffer_is_writable (buffer) == TRUE);
348 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
349 gst_buffer_unref (buffer);
354 GST_START_TEST (test_copy)
356 GstBuffer *buffer, *copy;
358 guint8 *data, *sdata;
360 buffer = gst_buffer_new_and_alloc (4);
361 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
363 copy = gst_buffer_copy (buffer);
364 ASSERT_BUFFER_REFCOUNT (buffer, "buffer", 1);
365 ASSERT_BUFFER_REFCOUNT (copy, "copy", 1);
366 /* buffers are copied and must point to different memory */
367 fail_if (buffer == copy);
369 data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
370 sdata = gst_buffer_map (copy, &ssize, NULL, GST_MAP_READ);
372 /* NOTE that data is refcounted */
373 fail_unless (size == ssize);
375 gst_buffer_unmap (copy, sdata, ssize);
376 gst_buffer_unmap (buffer, data, size);
378 gst_buffer_unref (copy);
379 gst_buffer_unref (buffer);
381 /* a 0-sized buffer has NULL data as per docs */
382 buffer = gst_buffer_new_and_alloc (0);
383 data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
384 fail_unless (data == NULL);
385 gst_buffer_unmap (buffer, data, size);
387 /* copying a 0-sized buffer should not crash and also set
388 * the data member NULL. */
389 copy = gst_buffer_copy (buffer);
390 data = gst_buffer_map (copy, &size, NULL, GST_MAP_READ);
391 fail_unless (data == NULL);
392 gst_buffer_unmap (copy, data, size);
394 gst_buffer_unref (copy);
395 gst_buffer_unref (buffer);
400 GST_START_TEST (test_try_new_and_alloc)
406 /* special case: alloc of 0 bytes results in new buffer with NULL data */
407 buf = gst_buffer_new_and_alloc (0);
408 fail_unless (buf != NULL);
409 fail_unless (GST_IS_BUFFER (buf));
410 data = gst_buffer_map (buf, &size, NULL, GST_MAP_READ);
411 fail_unless (data == NULL);
412 gst_buffer_unmap (buf, data, size);
413 gst_buffer_unref (buf);
415 /* normal alloc should still work */
416 buf = gst_buffer_new_and_alloc (640 * 480 * 4);
417 fail_unless (buf != NULL);
418 fail_unless (GST_IS_BUFFER (buf));
419 data = gst_buffer_map (buf, &size, NULL, GST_MAP_WRITE);
420 fail_unless (data != NULL);
421 fail_unless (size == (640 * 480 * 4));
422 data[640 * 479 * 4 + 479] = 0xff;
423 gst_buffer_unmap (buf, data, size);
425 gst_buffer_unref (buf);
428 /* Disabled this part of the test, because it happily succeeds on 64-bit
429 * machines that have enough memory+swap, because the address space is large
430 * enough. There's not really any way to test the failure case except by
431 * allocating chunks of memory until it fails, which would suck. */
433 /* now this better fail (don't run in valgrind, it will abort
434 * or warn when passing silly arguments to malloc) */
435 if (!RUNNING_ON_VALGRIND) {
436 buf = gst_buffer_new_and_alloc ((guint) - 1);
437 fail_unless (buf == NULL);
444 GST_START_TEST (test_size)
448 gsize maxalloc, maxalloc2, maxalloc3, maxalloc4;
449 gsize size, maxsize, offset;
451 /* one memory block */
452 buf = gst_buffer_new_allocate (NULL, 100, 0);
454 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
455 fail_unless (size == 100);
456 fail_unless (offset == 0);
457 fail_unless (maxalloc >= 100);
459 mem = gst_buffer_peek_memory (buf, 0, GST_MAP_WRITE);
460 gst_memory_resize (mem, 10, 70);
462 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
463 fail_unless (size == 70);
464 fail_unless (offset == 10);
465 fail_unless (maxsize == maxalloc);
468 mem = gst_allocator_alloc (NULL, 100, 0);
469 size = gst_memory_get_sizes (mem, &offset, &maxalloc2);
470 fail_unless (size == 100);
471 fail_unless (offset == 0);
472 fail_unless (maxalloc2 >= 100);
474 gst_memory_resize (mem, 20, 60);
475 size = gst_memory_get_sizes (mem, &offset, &maxsize);
476 fail_unless (size == 60);
477 fail_unless (offset == 20);
478 fail_unless (maxsize == maxalloc2);
481 gst_buffer_take_memory (buf, -1, mem);
483 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
484 fail_unless (size == 130);
485 fail_unless (offset == 10);
486 /* the maxsize is the size of the first buffer plus the remaining size in the
488 fail_unless (maxalloc == 80 + (maxalloc2 - 20));
490 /* appending an empty block */
491 mem = gst_allocator_alloc (NULL, 100, 0);
492 size = gst_memory_get_sizes (mem, &offset, &maxalloc3);
493 gst_memory_resize (mem, 0, 0);
494 gst_buffer_take_memory (buf, -1, mem);
496 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
497 fail_unless (size == 130);
498 fail_unless (offset == 10);
499 /* the maxsize is the size of the first buffer plus the remaining size in the
500 * second buffer and the last empty buffer*/
501 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3);
503 /* prepending an empty block */
504 mem = gst_allocator_alloc (NULL, 100, 0);
505 size = gst_memory_get_sizes (mem, &offset, &maxalloc4);
506 gst_memory_resize (mem, 0, 0);
507 gst_buffer_take_memory (buf, 0, mem);
509 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
510 fail_unless (size == 130);
511 /* empty buffer maxsize can be used as offset */
512 fail_unless (offset == 10 + maxalloc4);
513 /* the maxsize is the size of the first buffer plus the remaining size in the
514 * second buffer and the last empty buffer*/
515 fail_unless (maxalloc == 80 + (maxalloc2 - 20) + maxalloc3 + maxalloc4);
517 gst_buffer_unref (buf);
522 GST_START_TEST (test_resize)
526 gsize size, maxsize, offset;
528 /* one memory block */
529 buf = gst_buffer_new_allocate (NULL, 100, 0);
531 size = gst_buffer_get_sizes (buf, &offset, &maxalloc);
532 fail_unless (size == 100);
533 fail_unless (offset == 0);
534 fail_unless (maxalloc >= 100);
536 ASSERT_CRITICAL (gst_buffer_resize (buf, 200, 50));
537 ASSERT_CRITICAL (gst_buffer_resize (buf, 0, 150));
538 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc));
539 ASSERT_CRITICAL (gst_buffer_resize (buf, maxalloc, 1));
541 /* this does nothing */
542 gst_buffer_resize (buf, 0, 100);
544 /* nothing should have changed */
545 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
546 fail_unless (size == 100);
547 fail_unless (offset == 0);
548 fail_unless (maxsize == maxalloc);
550 gst_buffer_resize (buf, 0, 50);
551 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
552 fail_unless (size == 50);
553 fail_unless (offset == 0);
554 fail_unless (maxsize == maxalloc);
556 gst_buffer_resize (buf, 0, 100);
557 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
558 fail_unless (size == 100);
559 fail_unless (offset == 0);
560 fail_unless (maxsize == maxalloc);
562 gst_buffer_resize (buf, 1, 99);
563 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
564 fail_unless (size == 99);
565 fail_unless (offset == 1);
566 fail_unless (maxsize == maxalloc);
568 ASSERT_CRITICAL (gst_buffer_resize (buf, 1, maxalloc - 1));
570 gst_buffer_resize (buf, 0, 99);
571 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
572 fail_unless (size == 99);
573 fail_unless (offset == 1);
574 fail_unless (maxsize == maxalloc);
576 gst_buffer_resize (buf, -1, 100);
577 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
578 fail_unless (size == 100);
579 fail_unless (offset == 0);
580 fail_unless (maxsize == maxalloc);
582 ASSERT_CRITICAL (gst_buffer_resize (buf, -1, 100));
584 gst_buffer_resize (buf, 50, 40);
585 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
586 fail_unless (size == 40);
587 fail_unless (offset == 50);
588 fail_unless (maxsize == maxalloc);
590 gst_buffer_resize (buf, -50, 100);
591 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
592 fail_unless (size == 100);
593 fail_unless (offset == 0);
594 fail_unless (maxsize == maxalloc);
596 gst_buffer_resize (buf, 0, 0);
597 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
598 fail_unless (size == 0);
599 fail_unless (offset == 0);
600 fail_unless (maxsize == maxalloc);
602 gst_buffer_resize (buf, 0, 100);
603 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
604 fail_unless (size == 100);
605 fail_unless (offset == 0);
606 fail_unless (maxsize == maxalloc);
608 gst_buffer_resize (buf, 0, 100);
609 size = gst_buffer_get_sizes (buf, &offset, &maxsize);
610 fail_unless (size == 100);
611 fail_unless (offset == 0);
612 fail_unless (maxsize == maxalloc);
614 gst_buffer_unref (buf);
620 gst_buffer_suite (void)
622 Suite *s = suite_create ("GstBuffer");
623 TCase *tc_chain = tcase_create ("general");
625 suite_add_tcase (s, tc_chain);
626 tcase_add_test (tc_chain, test_subbuffer);
627 tcase_add_test (tc_chain, test_subbuffer_make_writable);
628 tcase_add_test (tc_chain, test_make_writable);
629 tcase_add_test (tc_chain, test_is_span_fast);
630 tcase_add_test (tc_chain, test_span);
631 tcase_add_test (tc_chain, test_metadata_writable);
632 tcase_add_test (tc_chain, test_copy);
633 tcase_add_test (tc_chain, test_try_new_and_alloc);
634 tcase_add_test (tc_chain, test_size);
635 tcase_add_test (tc_chain, test_resize);
640 GST_CHECK_MAIN (gst_buffer);