Commit 8658b2fd authored by Wim Taymans's avatar Wim Taymans

tests: add unit test for GstMemory

Add a GstMemory unit test
Add some more asserts in GstMemory to catch invalid cases.
parent ad659abe
......@@ -192,6 +192,7 @@ _default_mem_get_sizes (GstMemoryDefault * mem, gsize * offset, gsize * maxsize)
static void
_default_mem_resize (GstMemoryDefault * mem, gssize offset, gsize size)
{
g_return_if_fail (offset >= 0 || mem->offset >= -offset);
g_return_if_fail (size + mem->offset + offset <= mem->maxsize);
mem->offset += offset;
......@@ -213,8 +214,10 @@ _default_mem_map (GstMemoryDefault * mem, gsize * size, gsize * maxsize,
static gboolean
_default_mem_unmap (GstMemoryDefault * mem, gpointer data, gsize size)
{
if (size != -1)
if (size != -1) {
g_return_val_if_fail (size <= mem->maxsize, FALSE);
mem->size = size;
}
return TRUE;
}
......
......@@ -105,6 +105,7 @@ check_PROGRAMS = \
gst/gstbuffer \
gst/gstbufferlist \
gst/gstmeta \
gst/gstmemory \
gst/gstbus \
gst/gstcaps \
$(CXX_CHECKS) \
......
/* GStreamer
*
* unit test for GstMemory
*
* Copyright (C) <2012> Wim Taymans <wim.taymans at gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef HAVE_VALGRIND_H
# include <valgrind/valgrind.h>
#else
# define RUNNING_ON_VALGRIND FALSE
#endif
#include <gst/check/gstcheck.h>
GST_START_TEST (test_submemory)
{
GstMemory *memory, *sub;
gsize size, maxsize, ssize;
guint8 *data, *sdata;
memory = gst_allocator_alloc (NULL, 4, 0);
/* check sizes, memory starts out empty */
data = gst_memory_map (memory, &size, &maxsize, GST_MAP_WRITE);
fail_unless (size == 4, "memory has wrong size");
fail_unless (maxsize >= 4, "memory has wrong size");
memset (data, 0, 4);
gst_memory_unmap (memory, data, 4);
data = gst_memory_map (memory, &size, NULL, GST_MAP_READ);
sub = gst_memory_share (memory, 1, 2);
fail_if (sub == NULL, "share of memory returned NULL");
sdata = gst_memory_map (sub, &ssize, NULL, GST_MAP_READ);
fail_unless (ssize == 2, "submemory has wrong size");
fail_unless (memcmp (data + 1, sdata, 2) == 0,
"submemory contains the wrong data");
ASSERT_MEMORY_REFCOUNT (sub, "submemory", 1);
gst_memory_unmap (sub, sdata, ssize);
gst_memory_unref (sub);
/* create a submemory of size 0 */
sub = gst_memory_share (memory, 1, 0);
fail_if (sub == NULL, "share memory returned NULL");
sdata = gst_memory_map (sub, &ssize, NULL, GST_MAP_READ);
fail_unless (ssize == 0, "submemory has wrong size");
fail_unless (memcmp (data + 1, sdata, 0) == 0,
"submemory contains the wrong data");
ASSERT_MEMORY_REFCOUNT (sub, "submemory", 1);
gst_memory_unmap (sub, sdata, ssize);
gst_memory_unref (sub);
/* test if metadata is coppied, not a complete memory copy so only the
* timestamp and offset fields are copied. */
sub = gst_memory_share (memory, 0, 1);
fail_if (sub == NULL, "share of memory returned NULL");
fail_unless (gst_memory_get_sizes (sub, NULL, NULL) == 1,
"submemory has wrong size");
gst_memory_unref (sub);
/* test if metadata is coppied, a complete memory is copied so all the timing
* fields should be copied. */
sub = gst_memory_share (memory, 0, 4);
fail_if (sub == NULL, "share of memory returned NULL");
fail_unless (gst_memory_get_sizes (sub, NULL, NULL) == 4,
"submemory has wrong size");
/* clean up */
gst_memory_unref (sub);
gst_memory_unmap (memory, data, size);
gst_memory_unref (memory);
}
GST_END_TEST;
GST_START_TEST (test_is_span)
{
GstMemory *memory, *sub1, *sub2;
memory = gst_allocator_alloc (NULL, 4, 0);
sub1 = gst_memory_share (memory, 0, 2);
fail_if (sub1 == NULL, "share of memory returned NULL");
sub2 = gst_memory_share (memory, 2, 2);
fail_if (sub2 == NULL, "share of memory returned NULL");
fail_if (gst_memory_is_span (memory, sub2, NULL) == TRUE,
"a parent memory can't be span");
fail_if (gst_memory_is_span (sub1, memory, NULL) == TRUE,
"a parent memory can't be span");
fail_if (gst_memory_is_span (sub1, sub2, NULL) == FALSE,
"two submemorys next to each other should be span");
/* clean up */
gst_memory_unref (sub1);
gst_memory_unref (sub2);
gst_memory_unref (memory);
}
GST_END_TEST;
static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
static GstMemory *
create_read_only_memory (void)
{
GstMemory *mem;
/* assign some read-only data to the new memory */
mem = gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
(gpointer) ro_memory, NULL, sizeof (ro_memory), 0, sizeof (ro_memory));
fail_if (GST_MEMORY_IS_WRITABLE (mem));
return mem;
}
GST_START_TEST (test_writable)
{
GstMemory *mem, *mem2;
guint8 *data;
gsize size;
/* create read-only memory and try to write */
mem = create_read_only_memory ();
ASSERT_CRITICAL (gst_memory_map (mem, &size, NULL, GST_MAP_WRITE));
fail_if (GST_MEMORY_IS_WRITABLE (mem));
mem2 = gst_memory_copy (mem, 0, -1);
fail_if (GST_MEMORY_IS_WRITABLE (mem));
fail_unless (GST_MEMORY_IS_WRITABLE (mem2));
data = gst_memory_map (mem2, &size, NULL, GST_MAP_WRITE);
data[4] = 'a';
gst_memory_unmap (mem2, data, size);
gst_memory_unref (mem2);
gst_memory_unref (mem);
}
GST_END_TEST;
GST_START_TEST (test_submemory_writable)
{
GstMemory *mem, *sub_mem;
gsize size;
/* create sub-memory of read-only memory and make it writable */
mem = create_read_only_memory ();
sub_mem = gst_memory_share (mem, 0, 8);
fail_if (GST_MEMORY_IS_WRITABLE (sub_mem));
ASSERT_CRITICAL (gst_memory_map (sub_mem, &size, NULL, GST_MAP_WRITE));
gst_memory_unref (sub_mem);
gst_memory_unref (mem);
}
GST_END_TEST;
GST_START_TEST (test_copy)
{
GstMemory *memory, *copy;
gsize size, ssize;
guint8 *data, *sdata;
memory = gst_allocator_alloc (NULL, 4, 0);
ASSERT_MEMORY_REFCOUNT (memory, "memory", 1);
copy = gst_memory_copy (memory, 0, -1);
ASSERT_MEMORY_REFCOUNT (memory, "memory", 1);
ASSERT_MEMORY_REFCOUNT (copy, "copy", 1);
/* memorys are copied and must point to different memory */
fail_if (memory == copy);
data = gst_memory_map (memory, &size, NULL, GST_MAP_READ);
sdata = gst_memory_map (copy, &ssize, NULL, GST_MAP_READ);
/* NOTE that data is refcounted */
fail_unless (size == ssize);
gst_memory_unmap (copy, sdata, ssize);
gst_memory_unmap (memory, data, size);
gst_memory_unref (copy);
gst_memory_unref (memory);
memory = gst_allocator_alloc (NULL, 0, 0);
data = gst_memory_map (memory, &size, NULL, GST_MAP_READ);
fail_unless (size == 0);
gst_memory_unmap (memory, data, size);
/* copying a 0-sized memory should not crash */
copy = gst_memory_copy (memory, 0, -1);
data = gst_memory_map (copy, &size, NULL, GST_MAP_READ);
fail_unless (size == 0);
gst_memory_unmap (copy, data, size);
gst_memory_unref (copy);
gst_memory_unref (memory);
}
GST_END_TEST;
GST_START_TEST (test_try_new_and_alloc)
{
GstMemory *mem;
gsize size;
guint8 *data;
mem = gst_allocator_alloc (NULL, 0, 0);
fail_unless (mem != NULL);
data = gst_memory_map (mem, &size, NULL, GST_MAP_READ);
fail_unless (size == 0);
gst_memory_unmap (mem, data, size);
gst_memory_unref (mem);
/* normal alloc should still work */
mem = gst_allocator_alloc (NULL, 640 * 480 * 4, 0);
fail_unless (mem != NULL);
data = gst_memory_map (mem, &size, NULL, GST_MAP_WRITE);
fail_unless (data != NULL);
fail_unless (size == (640 * 480 * 4));
data[640 * 479 * 4 + 479] = 0xff;
gst_memory_unmap (mem, data, size);
gst_memory_unref (mem);
#if 0
/* Disabled this part of the test, because it happily succeeds on 64-bit
* machines that have enough memory+swap, because the address space is large
* enough. There's not really any way to test the failure case except by
* allocating chunks of memory until it fails, which would suck. */
/* now this better fail (don't run in valgrind, it will abort
* or warn when passing silly arguments to malloc) */
if (!RUNNING_ON_VALGRIND) {
buf = gst_allocator_alloc (NULL, (guint) - 1, 0);
fail_unless (buf == NULL);
}
#endif
}
GST_END_TEST;
GST_START_TEST (test_resize)
{
GstMemory *buf;
gsize maxalloc;
gsize size, maxsize, offset;
/* one memory block */
buf = gst_allocator_alloc (NULL, 100, 0);
size = gst_memory_get_sizes (buf, &offset, &maxalloc);
fail_unless (size == 100);
fail_unless (offset == 0);
fail_unless (maxalloc >= 100);
ASSERT_CRITICAL (gst_memory_resize (buf, 200, 50));
ASSERT_CRITICAL (gst_memory_resize (buf, 0, 150));
ASSERT_CRITICAL (gst_memory_resize (buf, 1, maxalloc));
ASSERT_CRITICAL (gst_memory_resize (buf, maxalloc, 1));
/* this does nothing */
gst_memory_resize (buf, 0, 100);
/* nothing should have changed */
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 100);
fail_unless (offset == 0);
fail_unless (maxsize == maxalloc);
gst_memory_resize (buf, 0, 50);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 50);
fail_unless (offset == 0);
fail_unless (maxsize == maxalloc);
gst_memory_resize (buf, 0, 100);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 100);
fail_unless (offset == 0);
fail_unless (maxsize == maxalloc);
gst_memory_resize (buf, 1, 99);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 99);
fail_unless (offset == 1);
fail_unless (maxsize == maxalloc);
ASSERT_CRITICAL (gst_memory_resize (buf, 1, maxalloc - 1));
gst_memory_resize (buf, 0, 99);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 99);
fail_unless (offset == 1);
fail_unless (maxsize == maxalloc);
gst_memory_resize (buf, -1, 100);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 100);
fail_unless (offset == 0);
fail_unless (maxsize == maxalloc);
/* can't set offset below 0 */
ASSERT_CRITICAL (gst_memory_resize (buf, -1, 100));
gst_memory_resize (buf, 50, 40);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 40);
fail_unless (offset == 50);
fail_unless (maxsize == maxalloc);
gst_memory_resize (buf, -50, 100);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 100);
fail_unless (offset == 0);
fail_unless (maxsize == maxalloc);
gst_memory_resize (buf, 0, 0);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 0);
fail_unless (offset == 0);
fail_unless (maxsize == maxalloc);
gst_memory_resize (buf, 0, 100);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 100);
fail_unless (offset == 0);
fail_unless (maxsize == maxalloc);
gst_memory_resize (buf, 0, 100);
size = gst_memory_get_sizes (buf, &offset, &maxsize);
fail_unless (size == 100);
fail_unless (offset == 0);
fail_unless (maxsize == maxalloc);
gst_memory_unref (buf);
}
GST_END_TEST;
static Suite *
gst_memory_suite (void)
{
Suite *s = suite_create ("GstMemory");
TCase *tc_chain = tcase_create ("general");
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_submemory);
tcase_add_test (tc_chain, test_submemory_writable);
tcase_add_test (tc_chain, test_writable);
tcase_add_test (tc_chain, test_is_span);
tcase_add_test (tc_chain, test_copy);
tcase_add_test (tc_chain, test_try_new_and_alloc);
tcase_add_test (tc_chain, test_resize);
return s;
}
GST_CHECK_MAIN (gst_memory);
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