tests/clutter/conform: Make sure to destroy created actors

We're moving towards not supporting stand-alone application style
clutter stages, meaning the stage tests use will be reused instead of
recreated. To make this feasable, tests must clean up after themself.

https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1364

src/tests/clutter/conform/actor-invariants.c

@@ -74,6 +74,8 @@ actor_realized (void)
 
   g_assert (!(CLUTTER_ACTOR_IS_MAPPED (actor)));
   g_assert (!(CLUTTER_ACTOR_IS_VISIBLE (actor)));
+
+  clutter_actor_destroy (actor);
 }
 
 static void
@@ -115,6 +117,8 @@ actor_mapped (void)
   g_assert (CLUTTER_ACTOR_IS_REALIZED (actor));
   g_assert (!CLUTTER_ACTOR_IS_MAPPED (actor));
   g_assert (!CLUTTER_ACTOR_IS_VISIBLE (actor));
+
+  clutter_actor_destroy (actor);
 }
 
 static void
@@ -155,6 +159,9 @@ actor_visibility_not_recursive (void)
 
   clutter_actor_show (stage);
   g_assert (!CLUTTER_ACTOR_IS_VISIBLE (actor));
+
+  clutter_actor_destroy (actor);
+  clutter_actor_destroy (group);
 }
 
 static void
@@ -190,6 +197,9 @@ actor_realize_not_recursive (void)
   g_assert (!CLUTTER_ACTOR_IS_REALIZED (actor));
   g_assert (!(CLUTTER_ACTOR_IS_MAPPED (actor)));
   g_assert (!(CLUTTER_ACTOR_IS_VISIBLE (actor)));
+
+  clutter_actor_destroy (actor);
+  clutter_actor_destroy (group);
 }
 
 static void
@@ -235,6 +245,9 @@ actor_map_recursive (void)
   g_assert (CLUTTER_ACTOR_IS_MAPPED (actor));
   g_assert (CLUTTER_ACTOR_IS_VISIBLE (group));
   g_assert (CLUTTER_ACTOR_IS_VISIBLE (actor));
+
+  clutter_actor_destroy (actor);
+  clutter_actor_destroy (group);
 }
 
 static void
@@ -337,6 +350,7 @@ clone_no_map (void)
   g_assert (!(CLUTTER_ACTOR_IS_MAPPED (group)));
   g_assert (!(CLUTTER_ACTOR_IS_MAPPED (actor)));
 
+  clutter_actor_destroy (actor);
   clutter_actor_destroy (CLUTTER_ACTOR (clone));
   clutter_actor_destroy (CLUTTER_ACTOR (group));
 }

src/tests/clutter/conform/actor-layout.c

@@ -41,6 +41,8 @@ actor_basic_layout (void)
 
   graphene_point_init (&p, 250, 50);
   clutter_test_assert_actor_at_point (stage, &p, flower[2]);
+
+  clutter_actor_destroy (vase);
 }
 
 static void
@@ -86,6 +88,8 @@ actor_margin_layout (void)
 
   graphene_point_init (&p, 212, 7);
   clutter_test_assert_actor_at_point (stage, &p, flower[2]);
+
+  clutter_actor_destroy (vase);
 }
 
 CLUTTER_TEST_SUITE (

src/tests/clutter/conform/actor-offscreen-redirect.c

@@ -442,6 +442,9 @@ actor_offscreen_redirect (void)
 
   while (!data.was_painted)
     g_main_context_iteration (NULL, FALSE);
+
+  clutter_actor_destroy (data.parent_container);
+  clutter_actor_destroy (data.unrelated_actor);
 }
 
 CLUTTER_TEST_SUITE (

src/tests/clutter/conform/actor-paint-opacity.c

@@ -37,6 +37,8 @@ opacity_label (void)
     g_print ("label 50%%.get_paint_opacity()/2\n");
   clutter_actor_set_opacity (label, 128);
   g_assert (clutter_actor_get_paint_opacity (label) == 128);
+
+  clutter_actor_destroy (label);
 }
 
 G_GNUC_BEGIN_IGNORE_DEPRECATIONS
@@ -70,6 +72,8 @@ opacity_rectangle (void)
   if (!g_test_quiet ())
     g_print ("rect 100%%.get_paint_opacity()\n");
   g_assert (clutter_actor_get_paint_opacity (rect) == 255);
+
+  clutter_actor_destroy (rect);
 }
 G_GNUC_END_IGNORE_DEPRECATIONS
 
@@ -135,6 +139,8 @@ opacity_paint (void)
   if (!g_test_quiet ())
     g_print ("rect 100%%.get_paint_opacity()\n");
   g_assert (clutter_actor_get_paint_opacity (rect) == 128);
+
+  clutter_actor_destroy (group1);
 }
 G_GNUC_END_IGNORE_DEPRECATIONS
 

src/tests/clutter/conform/actor-pick.c

@@ -19,6 +19,7 @@ struct _State
   guint failed_pass;
   guint failed_idx;
   gboolean pass;
+  GList *actor_list;
 };
 
 static const char *test_passes[] = {
@@ -61,6 +62,7 @@ on_timeout (gpointer data)
           clutter_actor_set_background_color (over_actor, &red);
           clutter_actor_set_size (over_actor, STAGE_WIDTH, STAGE_HEIGHT);
           clutter_actor_add_child (state->stage, over_actor);
+          state->actor_list = g_list_prepend (state->actor_list, over_actor);
           clutter_actor_hide (over_actor);
 
           if (!g_test_quiet ())
@@ -172,7 +174,7 @@ static void
 actor_pick (void)
 {
   int y, x;
-  State state;
+  State state = { 0 };
   
   state.pass = TRUE;
 
@@ -188,6 +190,7 @@ actor_pick (void)
                                y * 255 / (ACTORS_Y - 1),
                                128, 255 };
         ClutterActor *rect = clutter_actor_new ();
+        state.actor_list = g_list_prepend (state.actor_list, rect);
 
         clutter_actor_set_background_color (rect, &color);
         clutter_actor_set_position (rect,
@@ -219,6 +222,8 @@ actor_pick (void)
     }
 
   g_assert (state.pass);
+
+  g_list_free_full (state.actor_list, (GDestroyNotify) clutter_actor_destroy);
 }
 
 CLUTTER_TEST_SUITE (

src/tests/clutter/conform/actor-pivot-point.c

@@ -41,6 +41,9 @@ actor_pivot (void)
   clutter_actor_get_transform (actor_explicit, &result_explicit);
 
   g_assert (cogl_matrix_equal (&result_implicit, &result_explicit));
+
+  clutter_actor_destroy (actor_implicit);
+  clutter_actor_destroy (actor_explicit);
 }
 
 CLUTTER_TEST_SUITE (

src/tests/clutter/conform/actor-shader-effect.c

@@ -256,6 +256,7 @@ actor_shader_effect (void)
   ClutterActor *stage;
   ClutterActor *rect;
   gboolean was_painted;
+  GList *actors = NULL;
 
   if (!clutter_feature_available (CLUTTER_FEATURE_SHADERS_GLSL))
     return;
@@ -264,18 +265,22 @@ actor_shader_effect (void)
 
   rect = make_actor (foo_old_shader_effect_get_type ());
   clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
+  actors = g_list_prepend (actors, rect);
 
   rect = make_actor (foo_new_shader_effect_get_type ());
   clutter_actor_set_x (rect, 100);
   clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
+  actors = g_list_prepend (actors, rect);
 
   rect = make_actor (foo_another_new_shader_effect_get_type ());
   clutter_actor_set_x (rect, 200);
   clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
+  actors = g_list_prepend (actors, rect);
 
   rect = make_actor (foo_new_shader_effect_get_type ());
   clutter_actor_set_x (rect, 300);
   clutter_container_add_actor (CLUTTER_CONTAINER (stage), rect);
+  actors = g_list_prepend (actors, rect);
 
   clutter_actor_show (stage);
 
@@ -286,6 +291,8 @@ actor_shader_effect (void)
 
   while (!was_painted)
     g_main_context_iteration (NULL, FALSE);
+
+  g_list_free_full (actors, (GDestroyNotify) clutter_actor_destroy);
 }
 
 CLUTTER_TEST_SUITE (