def test_no_user_loader_raises(self):
login_manager = LoginManager(self.app, add_context_processor=True)
with self.app.test_request_context():
session['user_id'] = '2'
with self.assertRaises(Exception) as cm:
login_manager.reload_user()
expected_exception_message = 'No user_loader has been installed'
self.assertTrue(
str(cm.exception).startswith(expected_exception_message))
