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tests: Add a singleton construct-property test

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Beef up the singleton testcase to reproduce a
freeze count underflow when setting properties
at construction time, with a custom constructor.

Helps: #2666
This commit is contained in:
Matthias Clasen 2022-06-09 11:34:39 -04:00 committed by Philip Withnall
parent 9af0444b92
commit 12152788f9
1 changed files with 64 additions and 1 deletions
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65
gobject/tests/singleton.c
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@ -21,6 +21,7 @@
struct _MySingleton {
GObject parent_instance;
int myint;
};
#define MY_TYPE_SINGLETON my_singleton_get_type ()
@ -41,6 +42,15 @@ my_singleton_constructor (GType type,
return G_OBJECT_CLASS (my_singleton_parent_class)->constructor (type, n_construct_properties, construct_properties);
}
static void
my_singleton_finalize (GObject *object)
{
g_assert ((GObject *) the_one_and_only == object);
the_one_and_only = NULL;
G_OBJECT_CLASS (my_singleton_parent_class)->finalize (object);
}
static void
my_singleton_init (MySingleton *self)
{
@ -48,10 +58,46 @@ my_singleton_init (MySingleton *self)
the_one_and_only = self;
}
static void
my_singleton_set_property (GObject *gobject,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MySingleton *self = (MySingleton *) gobject;
g_assert (prop_id == 1);
self->myint = g_value_get_int (value);
}
static void
my_singleton_get_property (GObject *gobject,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MySingleton *self = (MySingleton *) gobject;
g_assert (prop_id == 1);
g_value_set_int (value, self->myint);
}
static void
my_singleton_class_init (MySingletonClass *klass)
{
G_OBJECT_CLASS (klass)->constructor = my_singleton_constructor;
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructor = my_singleton_constructor;
object_class->finalize = my_singleton_finalize;
object_class->set_property = my_singleton_set_property;
object_class->get_property = my_singleton_get_property;
g_object_class_install_property (G_OBJECT_CLASS (klass), 1,
g_param_spec_int ("foo", NULL, NULL,
0, G_MAXINT, 0,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
}
static void
@ -72,6 +118,22 @@ test_singleton_construction (void)
g_object_unref (singleton);
}
static void
test_singleton_construct_property (void)
{
MySingleton *singleton;
g_test_summary ("Test that creating a singleton with a construct-time property works");
g_test_bug ("https://gitlab.gnome.org/GNOME/glib/-/issues/2666");
/* create the singleton and set a property at construction time */
singleton = g_object_new (MY_TYPE_SINGLETON, "foo", 1, NULL);
g_assert_nonnull (singleton);
/* shutdown */
g_object_unref (singleton);
}
int
main (int argc,
char *argv[])
@ -79,6 +141,7 @@ main (int argc,
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/gobject/singleton/construction", test_singleton_construction);
g_test_add_func ("/gobject/singleton/construct-property", test_singleton_construct_property);
return g_test_run ();
}