Jest Test Babel错误:不允许插件/预设文件导出对象

我正在使用最新的 (2017年12月) 依赖项堆栈。当我尝试使用Jest进行同构反应测试时,测试服始终失败并显示以下错误:

* Test suite failed to run

[BABEL] /__tests__/router.test.js: Plugin/Preset files are not allowed to

export objects, only functions.

这是我的依赖项:

"dependencies": {

"axios": "^0.17.1",

"babel-polyfill": "^6.26.0",

"cors": "^2.8.4",

"express": "^4.16.2",

"react": "^16.1.1",

"react-dom": "^16.1.1",

"react-router-dom": "^4.2.2"

},

"devDependencies": {

"@babel/core": "^7.0.0-beta.35",

"babel-cli": "^6.26.0",

"babel-core": "^7.0.0-bridge.0",

"babel-eslint": "^8.0.2",

"babel-jest": "^22.0.1",

"babel-loader": "^7.1.2",

"babel-preset-env": "^1.6.1",

"babel-preset-react": "^6.24.1",

"enzyme": "^3.2.0",

"enzyme-adapter-react-16": "^1.1.0",

"enzyme-to-json": "^3.2.2",

"eslint": "^4.11.0",

"eslint-plugin-react": "^7.5.1",

"html-webpack-plugin": "^2.30.1",

"jest": "^21.2.1",

"nodemon": "^1.11.0",

"parallelshell": "^3.0.2",

"react-test-renderer": "^16.2.0",

"regenerator-runtime": "^0.11.1",

"supertest": "^3.0.0",

"webpack": "^3.8.1",

"webpack-dev-server": "^2.9.4"

},

"peerDependencies": {

"babel-core": "^7.0.0-0"

}

.babelrc:

{

"presets": [

"env",

"react",

]

}

关于Jest为什么不运行,是否有人有任何见解?

回答:

通天桥旨在涵盖6到7之间的所有问题

那不是桥包所做的100%。它所做的只是允许使用的工具babel-

core传递给@babel/core。整个程序包就是这一行代码。

如果您使用@babel/core,则需要使用可在Babel 7上使用的插件。这意味着babel-preset-

react应该更改为,@babel/preset-react并且与相同,@babel/preset-env并且您.babelrc应该是:

{

"presets": [

"@babel/env",

"@babel/react",

]

}

同样,babel-polyfill应该是@babel/polyfill

由于Babel 7仍是不稳定的Beta,因此尚未对此进行充分记录。

以上是 Jest Test Babel错误:不允许插件/预设文件导出对象 的全部内容, 来源链接: utcz.com/qa/418285.html

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