def test_remove(self):
win = gtk.Window()
dockitem = DockItem()
dockgroup = DockGroup()
dockgroup.add(dockitem)
win.add(dockgroup)
win.show_all()
assert dockitem.flags() & gtk.REALIZED
dockgroup.remove(dockitem)
self.assertTrue(dockitem not in dockgroup)
win.destroy()
assert not dockitem.flags() & gtk.REALIZED
assert not dockgroup.flags() & gtk.REALIZED
