[testinggtk] test for gdk.window_process_all_updates

[Björn Lindqvist <bjornl src gnome org>]

commit 67cf41888107040fadb2e8c41032f8659624b7cf
Author: Björn Lindqvist <bjourne gmail com>
Date:   Fri Jul 10 13:28:50 2009 +0200

    test for gdk.window_process_all_updates

 tests/gdk/test_window.py |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
---
diff --git a/tests/gdk/test_window.py b/tests/gdk/test_window.py
index 4823775..7955ecc 100644
--- a/tests/gdk/test_window.py
+++ b/tests/gdk/test_window.py
@@ -189,3 +189,17 @@ def test_reparent_changes_origin():
     window.reparent(parent, 55, 66)
     assert window.get_origin() == (55, 66)
 
+def test_process_all_updates():
+    '''
+    Calling ``gdk.window_process_all_updates`` clears the update area
+    of all windows.
+    '''
+    window = gdk.Window(None,
+                        20, 20,
+                        gdk.WINDOW_TOPLEVEL,
+                        0,
+                        gdk.INPUT_OUTPUT)
+    window.show()
+    assert window.get_update_area()
+    gdk.window_process_all_updates()
+    assert not window.get_update_area()