问题
After upgrading my project to Babel 7, running tests through jest is throwing the following error. The tests used to run without any issues in Babel 6, but are failing in Babel 7 with the following error
TypeError: wks is not a function
at Object.<anonymous>.module.exports (node_modules/core-js/modules/_fix-re-wks.js:16:16)
at Object.<anonymous> (node_modules/core-js/modules/es6.regexp.replace.js:4:25)
at Object.<anonymous> (node_modules/core-js/modules/es6.regexp.split.js:3:1)
at Object.<anonymous> (node_modules/core-js/modules/es6.symbol.js:7:1)
at Object.<anonymous> (node_modules/core-js/modules/_is-object.js:5:1)
at Object.<anonymous> (node_modules/core-js/modules/_inherit-if-required.js:3:16)
at Object.<anonymous> (node_modules/core-js/modules/es6.regexp.constructor.js:5:25)
at Object.<anonymous> (node_modules/core-js/modules/es6.regexp.match.js:3:1)
at Object.<anonymous> (node_modules/core-js/modules/es6.function.name.js:3:1)
at Object.<anonymous> (node_modules/core-js/modules/_wks.js:3:1)
at Object.<anonymous> (node_modules/core-js/modules/_add-to-unscopables.js:4:19)
at Object.<anonymous> (node_modules/core-js/modules/es6.array.iterator.js:3:24)
at Object.<anonymous> (node_modules/core-js/modules/web.dom.iterable.js:3:18)
at Object.<anonymous> (node_modules/regenerator-runtime/runtime.js:3:1)
Jest config
{
"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
}
babel.js.config
{
"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"
]
}
package.json
"devDependencies": {
"@babel/cli": "^7.0.0",
"@babel/core": "^7.0.1",
"@babel/plugin-proposal-class-properties": "^7.0.0",
"@babel/plugin-proposal-decorators": "^7.0.0",
"@babel/plugin-proposal-export-namespace-from": "^7.0.0",
"@babel/plugin-proposal-function-sent": "^7.0.0",
"@babel/plugin-proposal-json-strings": "^7.0.0",
"@babel/plugin-proposal-numeric-separator": "^7.0.0",
"@babel/plugin-proposal-object-rest-spread": "^7.0.0",
"@babel/plugin-proposal-throw-expressions": "^7.0.0",
"@babel/plugin-syntax-dynamic-import": "^7.0.0",
"@babel/plugin-syntax-import-meta": "^7.0.0",
"@babel/plugin-transform-object-assign": "^7.0.0",
"@babel/preset-env": "^7.0.0",
"@babel/preset-react": "^7.0.0",
"babel-core": "7.0.0-bridge.0",
"babel-loader": "^8.0.0",
"body-parser": "^1.18.3",
"create-if-not-exist": "^0.0.2",
"enzyme": "^3.3.0",
"enzyme-adapter-react-16": "^1.1.1",
"enzyme-to-json": "^3.3.1",
"eslint": "^4.13.1",
"eslint-config-airbnb": "^16.1.0",
"eslint-config-defaults": "^9.0.0",
"eslint-config-rallycoding": "^3.2.0",
"eslint-plugin-import": "^2.7.0",
"eslint-plugin-jsx-a11y": "^6.0.2",
"eslint-plugin-react": "^7.4.0",
"exports-loader": "0.6.4",
"express": "^4.16.3",
"generic-redux-root": "^0.0.1",
"imports-loader": "0.7.1",
"jasmine": "^2.8.0",
"jest": "^23.4.1",
"jest-cli": "^23.4.1",
"jest-trx-results-processor": "^0.0.7",
"redux-mock-store": "^1.5.1",
"string-replace-webpack-plugin": "^0.1.3",
"webpack": "^4.5.0",
"webpack-cli": "^2.0.12",
"webpack-dev-server": "^3.1.1"
},
"dependencies": {
"@babel/polyfill": "^7.0.0",
"babel-jest": "^23.6.0",
"babel-plugin-add-module-exports": "^0.2.1",
"core-js": "^2.5.5",
"draft-js": "^0.10.5",
"es6-promise": "^3.3.1",
"flux": "^3.1.3",
"generic-api-fetch": "1.0.1",
"generic-http": "^1.0.2",
"generic-limited-textarea": "^1.1.0",
"generic-select": "^1.0.3",
"generic-throttled-select": "^1.0.3",
"lodash": "4.17.4",
"moment": "^2.22.2",
"prop-types": "^15.6.2",
"react": "16.2.0",
"react-addons-update": "15.6.2",
"react-datepicker": "^1.5.0",
"react-dom": "16.2.0",
"react-hot-loader": "3.1.3",
"react-infinite-scroller": "^1.2.0",
"react-redux": "5.0.6",
"react-select": "1.1.0",
"redux": "3.7.2",
"redux-logger": "3.0.6",
"redux-thunk": "2.2.0",
"reselect": "3.0.1",
"whatwg-fetch": "^2.0.4"
}
What am I doing wrong?
来源：https://stackoverflow.com/questions/52400840/babel-7-jest-core-js-typeerror-wks-is-not-a-function