def test_facebook_login(self):
        response = self.fetch('/facebook/client/login', follow_redirects=False)
        self.assertEqual(response.code, 302)
        self.assertTrue(response.headers['Location'] in '/facebook/server/authorize?')
        response = self.fetch('/facebook/client/login?code=1234', follow_redirects=False)
        self.assertEqual(response.code, 200)
dataset/ETHPy150Open tornadoweb/tornado/tornado/test/auth_test.py/AuthTest.test_facebook_login/swapped operands of `in`