即使响应正确，TDD测试也会显示错误

我正在关注api here的教程，我正在遵循确切的代码，我也在调整Etsy应用程序的代码，这是我的第二次测试的代码，教程代码与教程相同，并且有效 . 以下代码已经过调整，可与Etsy APi配合使用 .

#etsywrapper/__core.py   
from . import session

class Listings(object):

    def __init__(self, id):
        self.id = id

    def info(self):
        path = 'https://openapi.etsy.com/v2/listings/{}/inventory'.format(self.id)
        response = session.get(path)
        return response.json()

    @staticmethod
    def active():
        path = 'https://openapi.etsy.com/v2/shops/:shop_id/listings/active'
        response = session.get(path)
        return response.json()

和

#etsywrapper/__init__.py    
import os
import requests

ETSY_API_KEY = os.environ.get('ETSY_API_KEY', None)

class APIKeyMissingError(Exception):
    pass

if ETSY_API_KEY is None:
    raise APIKeyMissingError(
        "All methods require an API key. See "
        "https://developers.themoviedb.org/3/getting-started/introduction "
        "for how to retrieve an authentication token from "
        "The Movie Database"
    )
session = requests.Session()
session.params = {}
session.params['api_key'] = ETSY_API_KEY

from .__core import Listings

和

#tests/test_etsywrapper.py    
from pytest import fixture
from etsywrapper import Listings
import vcr

@fixture
def listing_keys():
    # Responsible only for returning the test data
    return ['listing_id']

@vcr.use_cassette('tests/vcr_cassettes/listing-info.yml')
def test_listings_info(listing_keys):
    """test api call to get listings"""

    listings_instance = Listings(648597757)
    response = listings_instance.info()

    assert isinstance(response, dict)
    assert response['id'] == 648597757, "id should be in response"
    assert set(listing_keys).issubset(response.keys()), "All keys should be in the response"

@vcr.use_cassette('tests/vcr_cassettes/listings_active.yml')
def test_listings_active():
    """tests shop active listings"""

    response = Listings.active()

    assert isinstance(response, dict)
    assert isinstance(response['results'], list)
    assert isinstance(response['results'][0], dict)
    assert set(listing_keys()).issubset(response['results'][0].keys())

然后我用“ETSY_API_KEY ='my_api_code_here'py.test”运行测试 . 测试结果表明我在第一次测试中有错误，但是当我查看vcr文件中的结果时，测试已经可以了网址完全符合我的要求，以下是终端的错误详情

______________________________ test_listings_info _________________________listing_keys = ['listing_id'] @ vcr.use_cassette（'tests / vcr_cassettes / listing-info.yml'）def test_listings_info（listing_keys）：“”“test api call to get listings”“”listings_instance = Listings（648597757） ）response = listings_instance.info（）断言isinstance（响应，字典）断言响应['id'] == 648597757，“id应该响应”E KeyError：'id'tests / test_etsywrapper.py:18:KeyError

这是我所期待的网址

https://openapi.etsy.com/v2/listings/648597757/inventory?api_key="my_api_key“

正如您所看到的那样，测试中预期的“id”数字存在，但测试无法看到它 . 测试是否正确至关重要，任何人都可以在我的代码中看到错误吗？在开始时，我说我已经按照我的教程进行了操作，这里没有显示代码，但它与教程完全相同，并且所有测试都通过 .