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