def test_egg2(self):
        egg_name = '%s/nomodelapp.egg' % self.egg_dir
        sys.path.append(egg_name)
        models = load_app('app_no_models')
        self.assertTrue(models is None)
Updates a Balancer's custom error page.  This method blocks until
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.5/tests/regressiontests/app_loading/tests.py/EggLoadingTest.test_egg2--crossover with--dataset/ETHPy150Open apache/libcloud/libcloud/loadbalancer/drivers/rackspace.py/RackspaceLBDriver.ex_update_balancer_error_page