为 jest 设置 lint-staged

Question

我必须尝试使用 lint-staged 设置 husky。最初，我试图像下面这样设置，但那不起作用。

"lint-staged": {
    "*.js": [
      "prettier --write",
      "eslint src/ --fix",
      "npm run test",
      "git add"
    ]
  }

然后我在搜索之后将我的设置更改为以下但那再次报告差异错误

"lint-staged": {
    "*.js": [
      "prettier --write",
      "eslint src/ --fix",
      "jest --bail --findRelatedTests",
      "git add"
    ]
  }

错误描述

Jest encountered an unexpected token

  This usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript.

  By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules".

  Here's what you can do:
   • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
   • If you need a custom transformation to specify a "transform" option in your config.
   • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

当我在终端中运行 npm run test 时，它工作正常。那么为什么它不能与 `lint-staged 一起工作。我是不是做错了什么？

我的package.json

{
  "name": "myproject",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
    "axios": "^0.18.0",
    "react": "^16.8.4",
    "react-dom": "^16.8.4",
    "react-redux": "^6.0.1",
    "react-router-dom": "^5.0.0",
    "react-scripts": "2.1.8",
    "redux": "^4.0.1",
    "redux-thunk": "^2.3.0",
    "standard-http-error": "^2.0.1",
    "styled-components": "^4.1.3"
  },
  "scripts": {
    "start": "react-scripts start",
    "build": "react-scripts build",
    "test": "react-scripts test",
    "eject": "react-scripts eject"
  },
  "eslintConfig": {
    "extends": "react-app"
  },
  "browserslist": [
    ">0.2%",
    "not dead",
    "not ie <= 11",
    "not op_mini all"
  ],
  "devDependencies": {
    "eslint-config-airbnb": "^17.1.0",
    "eslint-config-prettier": "^4.1.0",
    "eslint-plugin-import": "^2.16.0",
    "eslint-plugin-jsx-a11y": "^6.2.1",
    "eslint-plugin-prettier": "^3.0.1",
    "eslint-plugin-react": "^7.12.4",
    "husky": "^1.3.1",
    "install": "^0.12.2",
    "lint-staged": "^8.1.5",
    "prettier": "1.16.4"
  },
  "husky": {
    "hooks": {
      "pre-commit": "lint-staged"
    }
  },
  "lint-staged": {
    "*.js": [
      "prettier --write",
      "eslint src/ --fix",
      "jest --bail --findRelatedTests",
      "git add"
    ]
  }
}

Answer 1

您的 lint-staged glob 模式仅在 root 上的 *.js 文件上设置为运行。您必须将其更改为 **/*.js 以在您的项目中包含所有 *.js 个文件。

"lint-staged": {
  "**/*.js": [
    "prettier --write",
    "eslint src/ --fix",
    "jest --bail --findRelatedTests",
    "git add"
  ]
}

Answer 2

使用 Create React App 意味着您必须使用 react-scripts 进行测试，因为它们具有 babel 配置，jest alone 是缺失的。

有一种变通方法可以使用 react-scripts test 设置 husky lint-staged 并避免弹出和配置您自己的 babel 和 jest。

使用包 cross-env 这将允许我们在当前所处的任何环境中配置 CI 环境变量。

安装使用：

yarn add --dev cross-env

或

npm install cross-env --save-dev

然后在你的package.json你应该有这样的东西：

{
   "scripts" {
     ...,
     "lint": "eslint src --fix"
     "test": "cross-env CI=true react-scripts test --env=jsdom",
   },
   "husky": {
     "hooks": {
       "pre-commit": "lint-staged"
     }
   },
   "lint-staged": {
     "**/*.js": [
       "yarn lint",
       "yarn test"
     ]
   },
}

如果您正在使用 npm，您可以将 yarn test 更改为 npm 运行 test，与 lint.

相同

希望对您有所帮助 ;)。

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为 jest 设置 lint-staged

setting up lint-staged for jest

reactjs

eslint

husky

lint-staged