def METHOD_NAME(self, url):
    url = urlparse.urlparse(url)
    query = dict(parse_qsl(url.query))
    self.assertTrue("apiKey" in query)
    self.assertTrue("command" in query)
    self.assertTrue("response" in query)
    self.assertTrue("signature" in query)
    self.assertTrue(query["response"] == "json")
    return query