'Updating the color property requires a color.'

def test_set_color_missing_color(self):

    test_user = self.example_user('hamlet')
    test_email = test_user.email
    self.login(test_email)
    subs = gather_subscriptions(test_user)[0]
    result = self.client_post('/api/v1/users/me/subscriptions/properties', {'subscription_data': ujson.dumps([{'property': 'color', 'stream_id': subs[0]['stream_id']}])}, **self.api_auth(test_email))
    self.assert_json_error(result, 'value    key    is    missing    from    subscription_data[0]')
