如何导入Jest? [英] How can I import Jest?

问题描述

我想摆脱Jest测试代码中的全局变量.特别是describe，it和expect:

I would like to get rid of global variables in my Jest test code. Specifically describe, it and expect:

describe('Welcome (Snapshot)', () => {
  it('Welcome renders hello world', () => {
     ...
  });
});

所以我尝试添加:

import {describe,it} from 'jest';

和

import jest from 'jest';

jest.describe( ...
  jest.it( ...

还有其他变化...

但是没有运气.

我应该如何使其正常工作?

How should I get it working?

推荐答案

当我意识到Jest在Node.js中运行后，它意识到我可以做到这一点:

After I realized Jest is running in Node.js, it realized I could do this:

let { describe, it } = global;

这不是完美的，但是又往前走了一步……现在，我不再需要为全局变量配置linter.

It is not perfect, but one step closer... now I don't need to configure my linter with global variables any more.

这篇关于如何导入Jest?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！