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test-cogl-materials: Add a simple test for ref-counting copies

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This adds a simple test which creates a material and a copy of
it. Both materials are then immediately unref'd. The test checks
whether the materials were actually freed by registering some user
data with a destroy callback. This should catch a bug that Cogl had
where it add an extra reference to the parent when a pipeline is
copied.

Signed-off-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts 2011-07-06 12:43:29 +01:00
parent eb28d16300
commit 7115c54fda
1 changed files with 47 additions and 0 deletions
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47
tests/conform/test-cogl-materials.c
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@ -222,6 +222,51 @@ test_invalid_texture_layers_with_constant_colors (TestState *state,
test_material_with_primitives (state, x, y, 0x0000ffff);
}
static void
basic_ref_counting_destroy_cb (void *user_data)
{
gboolean *destroyed_flag = user_data;
g_assert (*destroyed_flag == FALSE);
*destroyed_flag = TRUE;
}
static void
test_basic_ref_counting (void)
{
CoglMaterial *material_parent;
gboolean parent_destroyed = FALSE;
CoglMaterial *material_child;
gboolean child_destroyed = FALSE;
static CoglUserDataKey user_data_key;
/* This creates a material with a copy and then just unrefs them
both without setting them as a source. They should immediately be
freed. We can test whether they were freed or not by registering
a destroy callback with some user data */
material_parent = cogl_material_new ();
/* Set some user data so we can detect when the material is
destroyed */
cogl_object_set_user_data (COGL_OBJECT (material_parent),
&user_data_key,
&parent_destroyed,
basic_ref_counting_destroy_cb);
material_child = cogl_material_copy (material_parent);
cogl_object_set_user_data (COGL_OBJECT (material_child),
&user_data_key,
&child_destroyed,
basic_ref_counting_destroy_cb);
cogl_object_unref (material_child);
cogl_object_unref (material_parent);
g_assert (parent_destroyed);
g_assert (child_destroyed);
}
static void
on_paint (ClutterActor *actor, TestState *state)
{
@ -235,6 +280,8 @@ on_paint (ClutterActor *actor, TestState *state)
2, 0 /* position */
);
test_basic_ref_counting ();
/* Comment this out if you want visual feedback for what this test paints */
#if 1
clutter_main_quit ();