GestureControllerTest: make sure actor is properly destroyed

Author: lenemter

tests/lib/GestureControllerTest.vala

@@ -92,6 +92,7 @@ public class Gala.GestureControllerTest : MutterTestCase {
     private MockBackend backend;
     private GestureController controller;
     private MockTarget target;
+    private Clutter.Actor actor;
 
     construct {
         add_test ("Test basic propagation", test_basic_propagation);
@@ -101,7 +102,7 @@ public class Gala.GestureControllerTest : MutterTestCase {
     public override void set_up () {
         base.set_up ();
 
-        var actor = new Clutter.Actor ();
+        actor = new Clutter.Actor ();
         stage.add_child (actor);
 
         backend = new MockBackend ();
@@ -121,11 +122,14 @@ public class Gala.GestureControllerTest : MutterTestCase {
     }
 
     public override void tear_down () {
-        stage.remove_child (target.actor);
+        if (actor != null) {
+            stage.remove_child (actor);
+        }
 
         backend = null;
         controller = null;
         target = null;
+        actor = null;
 
         base.tear_down ();
     }
@@ -164,6 +168,10 @@ public class Gala.GestureControllerTest : MutterTestCase {
         assert_finalize_object (ref target);
         assert_finalize_object (ref controller);
         assert_finalize_object (ref backend);
+
+        assert_nonnull (&actor);
+        stage.remove_child (actor);
+        assert_finalize_object (ref actor);
     }
 
     /**