我尝试使用打字稿实现的 React 组件编写单元测试,但是在模拟某些钩子函数时出现错误。
我的单元测试工具:
import React from 'react';
import { useHistory } from 'react-router-dom';
import { MyComponent } from './index';
jest.mock('react-router-dom', () => ({
...jest.requireActual('react-router-dom'),
useHistory: () => ({ replace: jest.fn() ]),
}));
describe('MyComponent', () => {
it('Should pass', () => {
// My render implementation
(useHistory as jest.Mock).mockReturnValue({ pathname: '/test' });
});
});
Run Code Online (Sandbox Code Playgroud)
当我运行测试用例时,它抛出一个错误:
类型错误:_reactRouterDom.useHistory.mockReturnValue 不是函数
unit-testing typescript reactjs react-router react-router-dom