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tests: add unit test for GstMemory
Add a GstMemory unit test Add some more asserts in GstMemory to catch invalid cases.
This commit is contained in:
Wim Taymans
parent
ad659abe8e
commit
8658b2fd68
3 changed files with 393 additions and 1 deletions
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@ -192,6 +192,7 @@ _default_mem_get_sizes (GstMemoryDefault * mem, gsize * offset, gsize * maxsize)
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static void
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_default_mem_resize (GstMemoryDefault * mem, gssize offset, gsize size)
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{
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g_return_if_fail (offset >= 0 || mem->offset >= -offset);
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g_return_if_fail (size + mem->offset + offset <= mem->maxsize);
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mem->offset += offset;
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@ -213,8 +214,10 @@ _default_mem_map (GstMemoryDefault * mem, gsize * size, gsize * maxsize,
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static gboolean
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_default_mem_unmap (GstMemoryDefault * mem, gpointer data, gsize size)
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{
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if (size != -1)
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if (size != -1) {
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g_return_val_if_fail (size <= mem->maxsize, FALSE);
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mem->size = size;
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}
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return TRUE;
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}
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@ -105,6 +105,7 @@ check_PROGRAMS = \
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gst/gstbuffer \
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gst/gstbufferlist \
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gst/gstmeta \
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gst/gstmemory \
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gst/gstbus \
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gst/gstcaps \
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$(CXX_CHECKS) \
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388
tests/check/gst/gstmemory.c
Normal file
388
tests/check/gst/gstmemory.c
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@ -0,0 +1,388 @@
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/* GStreamer
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*
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* unit test for GstMemory
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*
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* Copyright (C) <2012> Wim Taymans <wim.taymans at gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_VALGRIND_H
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# include <valgrind/valgrind.h>
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#else
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# define RUNNING_ON_VALGRIND FALSE
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#endif
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#include <gst/check/gstcheck.h>
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GST_START_TEST (test_submemory)
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{
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GstMemory *memory, *sub;
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gsize size, maxsize, ssize;
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guint8 *data, *sdata;
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memory = gst_allocator_alloc (NULL, 4, 0);
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/* check sizes, memory starts out empty */
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data = gst_memory_map (memory, &size, &maxsize, GST_MAP_WRITE);
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fail_unless (size == 4, "memory has wrong size");
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fail_unless (maxsize >= 4, "memory has wrong size");
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memset (data, 0, 4);
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gst_memory_unmap (memory, data, 4);
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data = gst_memory_map (memory, &size, NULL, GST_MAP_READ);
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sub = gst_memory_share (memory, 1, 2);
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fail_if (sub == NULL, "share of memory returned NULL");
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sdata = gst_memory_map (sub, &ssize, NULL, GST_MAP_READ);
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fail_unless (ssize == 2, "submemory has wrong size");
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fail_unless (memcmp (data + 1, sdata, 2) == 0,
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"submemory contains the wrong data");
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ASSERT_MEMORY_REFCOUNT (sub, "submemory", 1);
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gst_memory_unmap (sub, sdata, ssize);
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gst_memory_unref (sub);
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/* create a submemory of size 0 */
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sub = gst_memory_share (memory, 1, 0);
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fail_if (sub == NULL, "share memory returned NULL");
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sdata = gst_memory_map (sub, &ssize, NULL, GST_MAP_READ);
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fail_unless (ssize == 0, "submemory has wrong size");
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fail_unless (memcmp (data + 1, sdata, 0) == 0,
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"submemory contains the wrong data");
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ASSERT_MEMORY_REFCOUNT (sub, "submemory", 1);
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gst_memory_unmap (sub, sdata, ssize);
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gst_memory_unref (sub);
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/* test if metadata is coppied, not a complete memory copy so only the
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* timestamp and offset fields are copied. */
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sub = gst_memory_share (memory, 0, 1);
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fail_if (sub == NULL, "share of memory returned NULL");
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fail_unless (gst_memory_get_sizes (sub, NULL, NULL) == 1,
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"submemory has wrong size");
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gst_memory_unref (sub);
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/* test if metadata is coppied, a complete memory is copied so all the timing
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* fields should be copied. */
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sub = gst_memory_share (memory, 0, 4);
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fail_if (sub == NULL, "share of memory returned NULL");
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fail_unless (gst_memory_get_sizes (sub, NULL, NULL) == 4,
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"submemory has wrong size");
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/* clean up */
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gst_memory_unref (sub);
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gst_memory_unmap (memory, data, size);
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gst_memory_unref (memory);
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}
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GST_END_TEST;
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GST_START_TEST (test_is_span)
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{
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GstMemory *memory, *sub1, *sub2;
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memory = gst_allocator_alloc (NULL, 4, 0);
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sub1 = gst_memory_share (memory, 0, 2);
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fail_if (sub1 == NULL, "share of memory returned NULL");
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sub2 = gst_memory_share (memory, 2, 2);
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fail_if (sub2 == NULL, "share of memory returned NULL");
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fail_if (gst_memory_is_span (memory, sub2, NULL) == TRUE,
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"a parent memory can't be span");
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fail_if (gst_memory_is_span (sub1, memory, NULL) == TRUE,
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"a parent memory can't be span");
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fail_if (gst_memory_is_span (sub1, sub2, NULL) == FALSE,
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"two submemorys next to each other should be span");
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/* clean up */
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gst_memory_unref (sub1);
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gst_memory_unref (sub2);
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gst_memory_unref (memory);
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}
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GST_END_TEST;
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static const char ro_memory[] = "abcdefghijklmnopqrstuvwxyz";
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static GstMemory *
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create_read_only_memory (void)
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{
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GstMemory *mem;
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/* assign some read-only data to the new memory */
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mem = gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
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(gpointer) ro_memory, NULL, sizeof (ro_memory), 0, sizeof (ro_memory));
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fail_if (GST_MEMORY_IS_WRITABLE (mem));
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return mem;
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}
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GST_START_TEST (test_writable)
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{
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GstMemory *mem, *mem2;
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guint8 *data;
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gsize size;
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/* create read-only memory and try to write */
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mem = create_read_only_memory ();
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ASSERT_CRITICAL (gst_memory_map (mem, &size, NULL, GST_MAP_WRITE));
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fail_if (GST_MEMORY_IS_WRITABLE (mem));
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mem2 = gst_memory_copy (mem, 0, -1);
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fail_if (GST_MEMORY_IS_WRITABLE (mem));
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fail_unless (GST_MEMORY_IS_WRITABLE (mem2));
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data = gst_memory_map (mem2, &size, NULL, GST_MAP_WRITE);
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data[4] = 'a';
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gst_memory_unmap (mem2, data, size);
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gst_memory_unref (mem2);
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gst_memory_unref (mem);
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}
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GST_END_TEST;
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GST_START_TEST (test_submemory_writable)
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{
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GstMemory *mem, *sub_mem;
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gsize size;
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/* create sub-memory of read-only memory and make it writable */
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mem = create_read_only_memory ();
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sub_mem = gst_memory_share (mem, 0, 8);
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fail_if (GST_MEMORY_IS_WRITABLE (sub_mem));
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ASSERT_CRITICAL (gst_memory_map (sub_mem, &size, NULL, GST_MAP_WRITE));
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gst_memory_unref (sub_mem);
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gst_memory_unref (mem);
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}
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GST_END_TEST;
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GST_START_TEST (test_copy)
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{
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GstMemory *memory, *copy;
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gsize size, ssize;
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guint8 *data, *sdata;
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memory = gst_allocator_alloc (NULL, 4, 0);
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ASSERT_MEMORY_REFCOUNT (memory, "memory", 1);
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copy = gst_memory_copy (memory, 0, -1);
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ASSERT_MEMORY_REFCOUNT (memory, "memory", 1);
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ASSERT_MEMORY_REFCOUNT (copy, "copy", 1);
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/* memorys are copied and must point to different memory */
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fail_if (memory == copy);
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data = gst_memory_map (memory, &size, NULL, GST_MAP_READ);
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sdata = gst_memory_map (copy, &ssize, NULL, GST_MAP_READ);
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/* NOTE that data is refcounted */
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fail_unless (size == ssize);
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gst_memory_unmap (copy, sdata, ssize);
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gst_memory_unmap (memory, data, size);
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gst_memory_unref (copy);
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gst_memory_unref (memory);
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memory = gst_allocator_alloc (NULL, 0, 0);
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data = gst_memory_map (memory, &size, NULL, GST_MAP_READ);
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fail_unless (size == 0);
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gst_memory_unmap (memory, data, size);
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/* copying a 0-sized memory should not crash */
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copy = gst_memory_copy (memory, 0, -1);
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data = gst_memory_map (copy, &size, NULL, GST_MAP_READ);
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fail_unless (size == 0);
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gst_memory_unmap (copy, data, size);
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gst_memory_unref (copy);
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gst_memory_unref (memory);
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}
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GST_END_TEST;
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GST_START_TEST (test_try_new_and_alloc)
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{
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GstMemory *mem;
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gsize size;
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guint8 *data;
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mem = gst_allocator_alloc (NULL, 0, 0);
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fail_unless (mem != NULL);
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data = gst_memory_map (mem, &size, NULL, GST_MAP_READ);
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fail_unless (size == 0);
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gst_memory_unmap (mem, data, size);
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gst_memory_unref (mem);
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/* normal alloc should still work */
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mem = gst_allocator_alloc (NULL, 640 * 480 * 4, 0);
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fail_unless (mem != NULL);
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data = gst_memory_map (mem, &size, NULL, GST_MAP_WRITE);
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fail_unless (data != NULL);
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fail_unless (size == (640 * 480 * 4));
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data[640 * 479 * 4 + 479] = 0xff;
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gst_memory_unmap (mem, data, size);
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gst_memory_unref (mem);
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#if 0
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/* Disabled this part of the test, because it happily succeeds on 64-bit
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* machines that have enough memory+swap, because the address space is large
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* enough. There's not really any way to test the failure case except by
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* allocating chunks of memory until it fails, which would suck. */
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/* now this better fail (don't run in valgrind, it will abort
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* or warn when passing silly arguments to malloc) */
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if (!RUNNING_ON_VALGRIND) {
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buf = gst_allocator_alloc (NULL, (guint) - 1, 0);
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fail_unless (buf == NULL);
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}
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#endif
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}
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GST_END_TEST;
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GST_START_TEST (test_resize)
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{
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GstMemory *buf;
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gsize maxalloc;
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gsize size, maxsize, offset;
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/* one memory block */
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buf = gst_allocator_alloc (NULL, 100, 0);
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size = gst_memory_get_sizes (buf, &offset, &maxalloc);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxalloc >= 100);
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ASSERT_CRITICAL (gst_memory_resize (buf, 200, 50));
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ASSERT_CRITICAL (gst_memory_resize (buf, 0, 150));
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ASSERT_CRITICAL (gst_memory_resize (buf, 1, maxalloc));
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ASSERT_CRITICAL (gst_memory_resize (buf, maxalloc, 1));
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/* this does nothing */
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gst_memory_resize (buf, 0, 100);
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/* nothing should have changed */
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (buf, 0, 50);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 50);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (buf, 0, 100);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (buf, 1, 99);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 99);
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fail_unless (offset == 1);
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fail_unless (maxsize == maxalloc);
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ASSERT_CRITICAL (gst_memory_resize (buf, 1, maxalloc - 1));
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gst_memory_resize (buf, 0, 99);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 99);
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fail_unless (offset == 1);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (buf, -1, 100);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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/* can't set offset below 0 */
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ASSERT_CRITICAL (gst_memory_resize (buf, -1, 100));
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gst_memory_resize (buf, 50, 40);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 40);
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fail_unless (offset == 50);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (buf, -50, 100);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (buf, 0, 0);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 0);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (buf, 0, 100);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_resize (buf, 0, 100);
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size = gst_memory_get_sizes (buf, &offset, &maxsize);
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fail_unless (size == 100);
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fail_unless (offset == 0);
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fail_unless (maxsize == maxalloc);
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gst_memory_unref (buf);
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}
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GST_END_TEST;
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static Suite *
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gst_memory_suite (void)
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{
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Suite *s = suite_create ("GstMemory");
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TCase *tc_chain = tcase_create ("general");
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suite_add_tcase (s, tc_chain);
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tcase_add_test (tc_chain, test_submemory);
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tcase_add_test (tc_chain, test_submemory_writable);
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tcase_add_test (tc_chain, test_writable);
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tcase_add_test (tc_chain, test_is_span);
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tcase_add_test (tc_chain, test_copy);
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tcase_add_test (tc_chain, test_try_new_and_alloc);
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tcase_add_test (tc_chain, test_resize);
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return s;
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}
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GST_CHECK_MAIN (gst_memory);
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