开玩笑:如何全局模拟node-uuid(或任何其他导入的模块) [英] Jest: How to globally mock node-uuid (or any other imported module)

问题描述

最近从mocha迁移到jest，我遇到了一个问题.我的测试中有很多警告:

Recently migrated from mocha to jest and I'm running into an issue. I have lots of warnings in my tests:

[SECURITY] node-uuid: crypto not usable, falling back to insecure Math.random()

现在，在每个文件中添加以下行即可解决此问题，但仅适用于该特定测试文件:

Now, adding the following line to each file fixes the issue, but only for that specific test file:

jest.mock('node-uuid', () => ({ v4: jest.fn(() => 1) }));

我希望有一种方法可以全局模拟node-uuid进行所有测试，而不是单个文件?我做了很多搜索，并在安装文件中尝试了不同的技术，但无济于事.

I'm hoping there's a way to mock node-uuid globally for all tests instead of individual files? I've done a bunch of searches and tried different techniques in my setup file, but to no avail.

推荐答案

您可以定义[root]/__mocks__/node-uuid.js中的"noreferrer>手动模拟 其中[root]是node_modules目录所在的目录:

You can define a manual-mock in the [root]/__mocks__/node-uuid.js where [root] is the directory where the node_modules directory is located:

module.exports = { v4: jest.fn(() => 1) }

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