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/* custom-dispatch.c: Test GObjectClass.dispatch_properties_changed
* Copyright (C) 2022 Red Hat, Inc.
*
* SPDX-License-Identifier: LicenseRef-old-glib-tests
*
* This work is provided "as is"; redistribution and modification
* in whole or in part, in any medium, physical or electronic is
* permitted without restriction.
*
* This work 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.
*
* In no event shall the authors or contributors be liable for any
* direct, indirect, incidental, special, exemplary, or consequential
* damages (including, but not limited to, procurement of substitute
* goods or services; loss of use, data, or profits; or business
* interruption) however caused and on any theory of liability, whether
* in contract, strict liability, or tort (including negligence or
* otherwise) arising in any way out of the use of this software, even
* if advised of the possibility of such damage.
*/
#include <glib-object.h>
typedef struct {
GObject parent_instance;
int foo;
} TestObject;
typedef struct {
GObjectClass parent_class;
} TestObjectClass;
typedef enum {
PROP_FOO = 1,
N_PROPERTIES,
} TestObjectProperty;
static GParamSpec *properties[N_PROPERTIES] = { NULL, };
static GType test_object_get_type (void);
G_DEFINE_TYPE (TestObject, test_object, G_TYPE_OBJECT)
static void
test_object_set_foo (TestObject *obj,
gint foo)
{
if (obj->foo != foo)
{
obj->foo = foo;
g_assert (properties[PROP_FOO] != NULL);
g_object_notify_by_pspec (G_OBJECT (obj), properties[PROP_FOO]);
}
}
static void
test_object_set_property (GObject *gobject,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
TestObject *tobj = (TestObject *) gobject;
switch ((TestObjectProperty)prop_id)
{
case PROP_FOO:
test_object_set_foo (tobj, g_value_get_int (value));
break;
default:
g_assert_not_reached ();
}
}
static void
test_object_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
TestObject *tobj = (TestObject *) gobject;
switch ((TestObjectProperty)prop_id)
{
case PROP_FOO:
g_value_set_int (value, tobj->foo);
break;
default:
g_assert_not_reached ();
}
}
static int dispatch_properties_called;
static void
test_object_dispatch_properties_changed (GObject *object,
guint n_pspecs,
GParamSpec **pspecs)
{
dispatch_properties_called++;
G_OBJECT_CLASS (test_object_parent_class)->dispatch_properties_changed (object, n_pspecs, pspecs);
}
static void
test_object_class_init (TestObjectClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
properties[PROP_FOO] = g_param_spec_int ("foo", "Foo", "Foo",
-1, G_MAXINT,
0,
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS |
G_PARAM_EXPLICIT_NOTIFY);
gobject_class->set_property = test_object_set_property;
gobject_class->get_property = test_object_get_property;
gobject_class->dispatch_properties_changed = test_object_dispatch_properties_changed;
g_object_class_install_properties (gobject_class, N_PROPERTIES, properties);
}
static void
test_object_init (TestObject *self)
{
self->foo = 42;
}
static gboolean
object_has_notify_signal_handlers (gpointer instance)
{
guint signal_id = g_signal_lookup ("notify", G_TYPE_OBJECT);
return g_signal_handler_find (instance, G_SIGNAL_MATCH_ID, signal_id, 0, NULL, NULL, NULL) != 0;
}
static void
test_custom_dispatch_init (void)
{
TestObject *obj;
g_test_summary ("Test that custom dispatch_properties_changed is called "
"on initialization");
dispatch_properties_called = 0;
obj = g_object_new (test_object_get_type (), "foo", 5, NULL);
g_assert_false (object_has_notify_signal_handlers (obj));
g_assert_cmpint (dispatch_properties_called, ==, 1);
g_object_set (obj, "foo", 11, NULL);
g_assert_cmpint (dispatch_properties_called, ==, 2);
g_object_unref (obj);
}
/* This instance init behavior is the thing we are testing:
*
* 1. Don't connect any notify handlers
* 2. Change the the foo property
* 3. Verify that our custom dispatch_properties_changed is called
*/
static void
test_custom_dispatch_set (void)
{
TestObject *obj;
g_test_summary ("Test that custom dispatch_properties_changed is called regardless of connected notify handlers");
dispatch_properties_called = 0;
obj = g_object_new (test_object_get_type (), NULL);
g_assert_false (object_has_notify_signal_handlers (obj));
g_assert_cmpint (dispatch_properties_called, ==, 0);
g_object_set (obj, "foo", 11, NULL);
g_assert_cmpint (dispatch_properties_called, ==, 1);
g_object_set (obj, "foo", 11, NULL);
g_assert_cmpint (dispatch_properties_called, ==, 1);
g_object_unref (obj);
}
int
main (int argc, char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/properties/custom-dispatch/init", test_custom_dispatch_init);
g_test_add_func ("/properties/custom-dispatch/set", test_custom_dispatch_set);
return g_test_run ();
}
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