vue.js - 如何将带有 Jest 的 Vue Test Utils 添加到现有的 Vue-CLI 3 项目中？

Question

我想测试一个已经存在的 Vue-CLI 3 项目。我在创建项目时没有初始化测试预设。我已经搜索过，但没有找到任何合适的结果。我也看了文档，但是说要在创建项目时添加测试。

Answer 1

在您的项目根目录中，输入以下命令以添加 @vue/test-utils and jest :

vue add unit-jest

命令输出应该类似于这样:

$ vue add unit-jest

📦  Installing @vue/cli-plugin-unit-jest...

+ @vue/cli-plugin-unit-jest@3.7.0
added 282 packages from 167 contributors, removed 2 packages and audited 42205 packages in 9.693s
found 63 low severity vulnerabilities
  run `npm audit fix` to fix them, or `npm audit` for details
✔  Successfully installed plugin: @vue/cli-plugin-unit-jest


🚀  Invoking generator for @vue/cli-plugin-unit-jest...
📦  Installing additional dependencies...

added 12 packages from 11 contributors, updated 1 package, moved 4 packages and audited 42427 packages in 7.895s
found 64 low severity vulnerabilities
  run `npm audit fix` to fix them, or `npm audit` for details
✔  Successfully invoked generator for plugin: @vue/cli-plugin-unit-jest
   The following files have been updated / added:

     jest.config.js
     tests/unit/.eslintrc.js
     tests/unit/example.spec.js
     package-lock.json
     package.json

   You should review these changes with git diff and commit them.