开玩笑 - dontMock 功能没有按预期工作

【问题标题】：Jest - dontMock function not working as expected开玩笑 - dontMock 功能没有按预期工作
【发布时间】：2021-02-25 07:38:37
【问题描述】：

我试图在测试函数中取消模拟 axios 模块，但即使我声明了 dontMock 函数，它仍然会返回模拟响应。我做错了什么？

   import Axios from 'axios';   

   jest.mock('axios');

   describe('Testing Async Selectors', () => 
        it('should render empty dropdown', async () => {

           console.log(Axios);
        });

        it('should render empty dropdown', async () => {
           jest.dontMock('axios');

           console.log(Axios);
        });

  });

【问题讨论】：

标签： javascript axios jestjs mocking jest-mock-axios

【解决方案1】：

jest.dontMock(moduleName) 应与jest.doMock(moduleName, factory, options) 一起使用。

例如

describe('Testing Async Selectors', () => {
  beforeEach(() => {
    jest.resetModules();
  });
  it('should mock axios', async () => {
    jest.doMock('axios');
    const Axios = require('axios');
    expect(jest.isMockFunction(Axios)).toBeTruthy();
  });

  it('should not mock axios', async () => {
    jest.dontMock('axios');
    const Axios = require('axios');
    expect(jest.isMockFunction(Axios)).toBeFalsy();
  });
});

单元测试结果：

 PASS  src/stackoverflow/64818492/index.test.ts (9.71s)
  Testing Async Selectors
    ✓ should mock axios (47ms)
    ✓ should not mock axios (4ms)

Test Suites: 1 passed, 1 total
Tests:       2 passed, 2 total
Snapshots:   0 total
Time:        10.762s

【讨论】：