def METHOD_NAME(self):
    mg = QueryMyGene()
    extended_info_json = mg.get_microRNA_entity("NCBIGene: 100847086")
    self.maxDiff = None
    self.assertIsNotNone(extended_info_json)
    if extended_info_json != "None":
        self.assertEqual(len(json.loads(extended_info_json)),
                         len(json.loads(get_from_test_file('query_test_data.json', 'NCBIGene:100847086'))))
    #   invalid parameter
    extended_info_json = mg.get_microRNA_entity(100847086)
    self.assertEqual(extended_info_json, "None")