[gtk+] app window: test actiongroup across destroy

[Ryan Lortie <desrt src gnome org>]

commit 99ebb1cad2d8f4eec293bca02f73a450fac18577
Author: Ryan Lortie <desrt desrt ca>
Date:   Tue Jan 7 19:45:19 2014 -0500

    app window: test actiongroup across destroy
    
    Make sure that we don't violate the interface contract of GActionGroup
    just because gtk_widget_destroy() was called.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=710351

 testsuite/gtk/Makefile.am            |    1 +
 testsuite/gtk/gtkapplicationwindow.c |   81 ++++++++++++++++++++++++++++++++++
 2 files changed, 82 insertions(+), 0 deletions(-)
---
diff --git a/testsuite/gtk/Makefile.am b/testsuite/gtk/Makefile.am
index 077b4f3..daefbff 100644
--- a/testsuite/gtk/Makefile.am
+++ b/testsuite/gtk/Makefile.am
@@ -39,6 +39,7 @@ TEST_PROGS +=                         \
        floating                \
        grid                    \
        gtkmenu                 \
+       gtkapplicationwindow    \
        keyhash                 \
        listbox                 \
        no-gtk-init             \
diff --git a/testsuite/gtk/gtkapplicationwindow.c b/testsuite/gtk/gtkapplicationwindow.c
new file mode 100644
index 0000000..fa5f743
--- /dev/null
+++ b/testsuite/gtk/gtkapplicationwindow.c
@@ -0,0 +1,81 @@
+#include <gtk/gtk.h>
+
+static void
+removed (GActionGroup *group,
+         const gchar  *name,
+         gpointer      user_data)
+{
+  gboolean *was_removed = user_data;
+
+  *was_removed = TRUE;
+}
+
+static void
+test_as_actiongroup (void)
+{
+  GSimpleAction *action;
+  gboolean was_removed;
+  gpointer window;
+  gchar **list;
+
+  /* do a dummy round... */
+  window = g_object_ref_sink (g_object_new (GTK_TYPE_APPLICATION_WINDOW, NULL));
+  gtk_widget_destroy (window);
+  g_object_unref (window);
+
+  /* create a window, add an action */
+  window = g_object_ref_sink (g_object_new (GTK_TYPE_APPLICATION_WINDOW, NULL));
+  action = g_simple_action_new ("foo", NULL);
+  g_action_map_add_action (window, G_ACTION (action));
+  g_object_unref (action);
+
+  /* check which actions we have in the group */
+  list = g_action_group_list_actions (window);
+  g_assert_cmpstr (list[0], ==, "foo");
+  g_assert_cmpstr (list[1], ==, NULL);
+  g_strfreev (list);
+
+  /* make sure that destroying the window keeps our view of the actions
+   * consistent.
+   */
+  g_signal_connect (window, "action-removed", G_CALLBACK (removed), &was_removed);
+  gtk_widget_destroy (window);
+
+  /* One of two things will have happened, depending on the
+   * implementation.  Both are valid:
+   *
+   *  - we received a signal that the action was removed when we
+   *    destroyed the window; or
+   *
+   *  - the action is still available.
+   *
+   * Make sure we're in one of those states.
+   *
+   * This additionally ensures that calling into methods on the window
+   * will continue to work after it has been destroy (and not segfault).
+   */
+  list = g_action_group_list_actions (window);
+
+  if (was_removed == FALSE)
+    {
+      /* should still be here */
+      g_assert_cmpstr (list[0], ==, "foo");
+      g_assert_cmpstr (list[1], ==, NULL);
+    }
+  else
+    /* should be gone */
+    g_assert_cmpstr (list[0], ==, NULL);
+
+  g_object_unref (window);
+  g_strfreev (list);
+}
+
+int
+main (int argc, char **argv)
+{
+  gtk_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/gtkapplicationwindow/as-actiongroup", test_as_actiongroup);
+
+  return g_test_run ();
+}