[clutter] conform/actor: Add unit for the Container signals

[Emmanuele Bassi <ebassi src gnome org>]

commit 8ba0351c7ab8f1c9e0d76c78fb56c3b9e8fe4210
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Thu Feb 9 16:44:28 2012 +0000

    conform/actor: Add unit for the Container signals
    
    ClutterActor should be emitting signals defined on the ClutterContainer
    interface, as well as ensuring that manipulating the scene graph is
    still possible from within them.
    
    The new unit checks that we're emitting signals, by implementing
    something similar to the Bin class available in toolkits like gtk, st,
    and mx â i.e. a container that can only hold one child at any given
    point.

 tests/conform/test-actor-graph.c  |   74 +++++++++++++++++++++++++++++++++++++
 tests/conform/test-conform-main.c |    1 +
 2 files changed, 75 insertions(+), 0 deletions(-)
---
diff --git a/tests/conform/test-actor-graph.c b/tests/conform/test-actor-graph.c
index af2343b..6f2db61 100644
--- a/tests/conform/test-actor-graph.c
+++ b/tests/conform/test-actor-graph.c
@@ -374,3 +374,77 @@ actor_remove_all (TestConformSimpleFixture *fixture,
   clutter_actor_destroy (actor);
   g_object_unref (actor);
 }
+
+static void
+actor_added (ClutterContainer *container,
+             ClutterActor     *child,
+             gpointer          data)
+{
+  ClutterActor *actor = CLUTTER_ACTOR (container);
+  int *counter = data;
+  ClutterActor *old_child;
+
+  if (g_test_verbose ())
+    g_print ("Adding actor '%s'\n", clutter_actor_get_name (child));
+
+  old_child = clutter_actor_get_child_at_index (actor, 0);
+  if (old_child != child)
+    clutter_actor_remove_child (actor, old_child);
+
+  *counter += 1;
+}
+
+static void
+actor_removed (ClutterContainer *container,
+               ClutterActor     *child,
+               gpointer          data)
+{
+  int *counter = data;
+
+  if (g_test_verbose ())
+    g_print ("Removing actor '%s'\n", clutter_actor_get_name (child));
+
+  *counter += 1;
+}
+
+void
+actor_container_signals (TestConformSimpleFixture *fixture G_GNUC_UNUSED,
+                         gconstpointer data G_GNUC_UNUSED)
+{
+  ClutterActor *actor = clutter_actor_new ();
+  int add_count, remove_count;
+
+  g_object_ref_sink (actor);
+
+  add_count = remove_count = 0;
+  g_signal_connect (actor,
+                    "actor-added", G_CALLBACK (actor_added),
+                    &add_count);
+  g_signal_connect (actor,
+                    "actor-removed", G_CALLBACK (actor_removed),
+                    &remove_count);
+
+  clutter_actor_add_child (actor, g_object_new (CLUTTER_TYPE_ACTOR,
+                                                "name", "foo",
+                                                NULL));
+
+  g_assert_cmpint (add_count, ==, 1);
+  g_assert_cmpint (remove_count, ==, 0);
+  g_assert_cmpint (clutter_actor_get_n_children (actor), ==, 1);
+
+  clutter_actor_add_child (actor, g_object_new (CLUTTER_TYPE_ACTOR,
+                                                "name", "bar",
+                                                NULL));
+
+  g_assert_cmpint (add_count, ==, 2);
+  g_assert_cmpint (remove_count, ==, 1);
+  g_assert_cmpint (clutter_actor_get_n_children (actor), ==, 1);
+
+  g_signal_handlers_disconnect_by_func (actor, G_CALLBACK (actor_added),
+                                        &add_count);
+  g_signal_handlers_disconnect_by_func (actor, G_CALLBACK (actor_removed),
+                                        &remove_count);
+
+  clutter_actor_destroy (actor);
+  g_object_unref (actor);
+}
diff --git a/tests/conform/test-conform-main.c b/tests/conform/test-conform-main.c
index 1a6f608..c2aba65 100644
--- a/tests/conform/test-conform-main.c
+++ b/tests/conform/test-conform-main.c
@@ -135,6 +135,7 @@ main (int argc, char **argv)
   TEST_CONFORM_SIMPLE ("/actor", actor_replace_child);
   TEST_CONFORM_SIMPLE ("/actor", actor_remove_child);
   TEST_CONFORM_SIMPLE ("/actor", actor_remove_all);
+  TEST_CONFORM_SIMPLE ("/actor", actor_container_signals);
   TEST_CONFORM_SIMPLE ("/actor", actor_destruction);
   TEST_CONFORM_SIMPLE ("/actor", actor_anchors);
   TEST_CONFORM_SIMPLE ("/actor", actor_picking);