'A test client can receive custom headers'

def test_client_headers(self):

    response = self.client.get(u'/test_client_regress/check_headers/', HTTP_X_ARG_CHECK=u'Testing    123')
    self.assertEqual(response.content, 'HTTP_X_ARG_CHECK:    Testing    123')
    self.assertEqual(response.status_code, 200)
