'Test case in which no policies are specified into HTTP response.'

def test_retrieve_csp_policies_without_policies(self):

    hrds = {}.items()
    csp_headers = Headers(hrds)
    http_response = HTTPResponse(200, '', csp_headers, self.url, self.url)
    policies = retrieve_csp_policies(http_response)
    self.assertEqual(len(policies), 0)
