Nock拦截请求但返回空对象

Question

我正在使用mocha作为测试框架,我正在尝试模拟一个DELETE请求,该请求对返回HTTP状态代码的端点使用fetch204.

这是测试代码:

it('should logout user', (done) => {
  nock(<domain>)
    .log(console.log)
    .delete(path)
    .reply(204, {
      status: 204,
      message: 'This is a mocked response',
    });

  api.logout(token)
    .then((response) => {
      console.log('IS DONE?--->', nock.isDone());
      console.log('RESPONSE--->', response);
      done();
    })
    .catch((error) => {
      console.log('ERROR--->', error);
    });
});

这将返回以下输出:

matching <domain> to DELETE <domain>/<path>: true 
(the above line being generated by the .log method in nock)
IS DONE?---> true
RESPONSE---> {}

正如你所看到的请求被正确截获由陈述log()和isDone()箭扣方法,但是response返回的对象是一个空的对象,因此它不可能做出关于返回的HTTP状态代码断言(在这个例子中204)

知道我在这里可能缺少什么？,为什么该reply()方法返回一个空对象？

UPDATE

以下是该logout方法的代码,该remove方法是fetch使用DELETEHTTP方法的请求的包装器.

logout(token) {
  return remove(
    this.host,
    END_POINTS.DELETE_TOKEN,
    {
      pathParams: { token },
    },
    {
      Accept: 'application/json',
      'Content-Type': 'application/json',
      Authorization: `Bearer ${token}`,
    },
  );
}

Answer 1

我认为 204 不应该有响应正文，因此您可能需要将其更改为 200。服务器当然可以返回响应，但我认为 fetch 不会处理它。其他包（如request）将处理 204 状态的正文，但此请求包仅适用于服务器端。

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也不确定你的包装器做了什么，但我认为你需要使用response.json()承诺来获取响应。而且 mocha 还可以自动处理 Promise，你只需返回它们即可。请参阅下面的完整示例：

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const nock = require(\'nock\')\nconst fetch = require(\'isomorphic-fetch\');\nconst request = require(\'request\')\n\nconst domain = "http://domain.com";\nconst path = \'/some-path\';\nconst token = \'some-token\';\n\nconst api = {\n    logout: (token) => {\n        return fetch(domain + path, {\n            method: \'DELETE\',\n            headers: {\n                \'Content-Type\': \'application/json\'\n            }\n        });\n    }\n}\n\ndescribe(\'something\', () => {\n    it(\'should logout user with 204 response using request package\', (done) => {\n        nock(domain)\n            .log(console.log)\n            .delete(path)\n            .reply(204, {\n                status: 204,\n                message: \'This is a mocked response\',\n            });\n\n        request.delete(domain + path, function(err, res) {\n            console.log(res.body);\n            done(err);\n        })\n    });\n\n    it(\'should logout user\', () => {\n        nock(domain)\n            .log(console.log)\n            .delete(path)\n            .reply(200, {\n                status: 200,\n                message: \'This is a mocked response\',\n            });\n\n        return api.logout(token)\n            .then((response) => {\n                console.log(\'IS DONE?--->\', nock.isDone());\n                return response.json();\n            })\n            .then(function(body) {\n                console.log(\'BODY\', body);\n            })\n            .catch((error) => {\n                console.log(\'ERROR--->\', error);\n            });\n    });\n});\n

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这将输出：

\n\n

  something\nmatching http://domain.com:80 to DELETE http://domain.com:80/some-path: true\n{"status":204,"message":"This is a mocked response"}\n    \xe2\x9c\x93 should logout user with 204 response\nmatching http://domain.com:80 to DELETE http://domain.com:80/some-path: true\nIS DONE?---> true\nBODY { status: 200, message: \'This is a mocked response\' }\n    \xe2\x9c\x93 should logout user\n

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使用以下部门：

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  "dependencies": {\n    "isomorphic-fetch": "^2.2.1",\n    "mocha": "^3.2.0",\n    "nock": "^9.0.6",\n    "request": "^2.79.0"\n  }\n

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我希望它有帮助。

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