Question

我正在使用Jest进行问题测试。我和create-react-app做了一个反应应用并做了一些测试。现在，我使用模拟数据的所有测试都失败了。好像jest.mock('../../../main/services/api');似乎没有模仿任何东西，正如你可以看到错误下面的

TypeError: _ScheduleAPI2.default.addAvailability is not a function

      at src/schedule/actions/scheduleActions.js:173:7183
      at Object.dispatch (node_modules/redux-thunk/lib/index.js:11:18)
      at Object.it (src/schedule/actions/__tests__/scheduleActions-test.js:361:18)
      at runMicrotasksCallback (internal/process/next_tick.js:64:5)
      at _combinedTickCallback (internal/process/next_tick.js:73:7)
      at process._tickCallback (internal/process/next_tick.js:104:9)

测试示例：

import ScheduleAPI from '../../services/ScheduleAPI';

jest.mock('../../services/ScheduleAPI');


.
.
.


  it('creates LOAD_MORE_APPROVED_APPOINTMENTS_FAILURE when loading more approved appointments fails', () => {
    ScheduleAPI.fetchApprovedAppointments.mockImplementation(() => {
      throw { status: 401, error: { error: 'unauthorized' } };
    });

    return store.dispatch(actions.loadMoreApprovedAppointments(A_DATE))
                .catch(() => {
                  expect(store.getActions()).toEqual([
                    { type: LOAD_MORE_APPROVED_APPOINTMENTS_REQUEST },
                    { type: LOAD_MORE_APPROVED_APPOINTMENTS_FAILURE },
                  ]);
                });
  });

最奇怪的是，这个测试通过项目CI和同事。任何人都知道为什么？

Answer 1

您需要明确throw new Error()表示错误，否则throw将.then()而不是.catch()。此外，throw new Error('unauthorized')的参数是一个字符串，用作错误的描述，您无法发送状态或响应对象。

反应jest.mock不会模拟文件并使用它进行所有测试失败

1 个答案: