def test_missing_code_challenge(self):
    self.prepare_data()
    rv = self.client.get(self.authorize_url)
    self.assertIn(b'Missing', rv.data)
def test_missing_code_challenge(self):
    self.prepare_data()
    rv = self.client.get(self.authorize_url)
    self.assertIn(b'Missing', rv.data)