使用Babel7在我的项目中运行笑话测试时遇到问题。可以与babel6完美融合的测试。它也可以与带有Babel7的webpack完美地编译,但是由于编译错误而无法开玩笑地运行测试。我究竟做错了什么?
react/node_modules/generic-redux-root/index.js:1
({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){export * from './source/CreateReduxRoot';
^^^^^^
SyntaxError: Unexpected token export
我的笑话配置
{
"unmockedModulePathPatterns": [
"<rootDir>/node_modules/react",
"<rootDir>/node_modules/react-dom",
"<rootDir>/node_modules/react-addons-test-utils",
"<rootDir>/node_modules/fbjs",
"enzyme"
],
"roots": [
"<rootDir>/__tests__"
],
"transformIgnorePatterns": [
"node_modules/(^generic-)/i", //a module matching this is throwing an error
"node_modules/react-infinite-scroller"
],
"setupFiles": [
"./jestsetup.js"
],
"snapshotSerializers": [
"enzyme-to-json/serializer"
],
"testResultsProcessor": "./jestTrxProcessor",
"verbose": true
}
我的.babelrc
{
"presets": [
[
"@babel/preset-env",
{
"targets": {
"ie": 11
},
"useBuiltIns": "usage"
}
],
"@babel/preset-react"
],
"plugins": [
"@babel/plugin-transform-runtime",
"@babel/plugin-syntax-dynamic-import",
"@babel/plugin-syntax-import-meta",
"@babel/plugin-proposal-class-properties",
"@babel/plugin-proposal-json-strings",
[
"@babel/plugin-proposal-decorators",
{
"legacy": true
}
],
"@babel/plugin-proposal-function-sent",
"@babel/plugin-proposal-export-namespace-from",
"@babel/plugin-proposal-numeric-separator",
"@babel/plugin-proposal-throw-expressions",
"@babel/plugin-proposal-object-rest-spread",
"@babel/plugin-transform-object-assign"
]
}
我在做什么错了?
答案 0 :(得分:11)
之所以发生这种情况,是因为Babel 7不再自动加载您的.babelrc
。
root config
有一个新概念,它应该位于项目的根目录中,并且文件必须命名为babel.config.js
并导出对象。
因此,您可以按照以下步骤操作:
.babelrc
重命名为babel.config.js
,并确保您使用module.exports = {...}
jest --clearCache
来清除Jest内部缓存(这使我花了几个小时将头撞在墙上)