'Test that static tab display names are not being initialized as None.'

def test_static_tabs_initialization(self):

    resp = self.create_xblock(category='static_tab')
    usage_key = self.response_usage_key(resp)
    new_tab = self.get_item_from_modulestore(usage_key)
    self.assertEquals(new_tab.display_name, 'Empty')
