Javascript 摩卡意外标识符
我想用摩卡+柴+酶为我的react应用程序建立一个测试环境,问题是,很多东西都不见了,我不知道如何修复,因为我是一个初学者,在使用babel或webpack时。。。等 首先,我有一个用CreateReact应用程序创建的项目 我用npm安装了所有库 我们已经有了一个默认的app.test.js文件,所以我只是修改了代码 My package.json:Javascript 摩卡意外标识符,javascript,reactjs,mocha.js,babeljs,Javascript,Reactjs,Mocha.js,Babeljs,我想用摩卡+柴+酶为我的react应用程序建立一个测试环境,问题是,很多东西都不见了,我不知道如何修复,因为我是一个初学者,在使用babel或webpack时。。。等 首先,我有一个用CreateReact应用程序创建的项目 我用npm安装了所有库 我们已经有了一个默认的app.test.js文件,所以我只是修改了代码 My package.json: { "name": "****", "version": "0.1
{
"name": "****",
"version": "0.1.0",
"private": true,
"dependencies": {
"@babel/core": "7.1.0",
"@svgr/webpack": "2.4.1",
"@types/react": "^16.7.20",
"@types/react-dom": "^16.0.11",
"apollo-boost": "^0.1.23",
"babel-core": "7.0.0-bridge.0",
"babel-eslint": "9.0.0",
"babel-jest": "23.6.0",
"babel-loader": "8.0.4",
"babel-plugin-named-asset-import": "^0.2.3",
"babel-preset-react-app": "^6.1.0",
"bfj": "6.1.1",
"case-sensitive-paths-webpack-plugin": "2.1.2",
"chalk": "2.4.1",
"css-loader": "1.0.0",
"dotenv": "6.0.0",
"dotenv-expand": "4.2.0",
"eslint": "5.6.0",
"eslint-config-react-app": "^3.0.5",
"eslint-loader": "2.1.1",
"eslint-plugin-flowtype": "2.50.1",
"eslint-plugin-import": "2.14.0",
"eslint-plugin-jsx-a11y": "6.1.2",
"eslint-plugin-react": "7.11.1",
"file-loader": "2.0.0",
"fork-ts-checker-webpack-plugin-alt": "0.4.14",
"fs-extra": "7.0.0",
"graphql": "^14.0.2",
"graphql-tag": "^2.10.0",
"html-webpack-plugin": "4.0.0-alpha.2",
"identity-obj-proxy": "3.0.0",
"jest": "23.6.0",
"jest-pnp-resolver": "1.0.1",
"jest-resolve": "23.6.0",
"mini-css-extract-plugin": "0.4.3",
"optimize-css-assets-webpack-plugin": "5.0.1",
"pnp-webpack-plugin": "1.1.0",
"postcss-flexbugs-fixes": "4.1.0",
"postcss-loader": "3.0.0",
"postcss-preset-env": "6.0.6",
"postcss-safe-parser": "4.0.1",
"react": "^16.7.0",
"react-apollo": "^2.3.3",
"react-app-polyfill": "^0.1.3",
"react-dev-utils": "^6.1.1",
"react-dom": "^16.7.0",
"resolve": "1.8.1",
"sass-loader": "7.1.0",
"style-loader": "0.23.0",
"terser-webpack-plugin": "1.1.0",
"url-loader": "1.1.1",
"webpack": "4.19.1",
"webpack-dev-server": "^3.1.14",
"webpack-manifest-plugin": "2.0.4",
"workbox-webpack-plugin": "3.6.3"
},
"scripts": {
"start": "node scripts/start.js",
"build": "node scripts/build.js",
"test": "mocha src/App.test.js"
},
"eslintConfig": {
"extends": "react-app"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
],
"jest": {
"collectCoverageFrom": [
"src/**/*.{js,jsx,ts,tsx}",
"!src/**/*.d.ts"
],
"resolver": "jest-pnp-resolver",
"setupFiles": [
"react-app-polyfill/jsdom"
],
"testMatch": [
"<rootDir>/src/**/__tests__/**/*.{js,jsx,ts,tsx}",
"<rootDir>/src/**/?(*.)(spec|test).{js,jsx,ts,tsx}"
],
"testEnvironment": "jsdom",
"testURL": "http://localhost",
"transform": {
"^.+\\.(js|jsx|ts|tsx)$": "<rootDir>/node_modules/babel-jest",
"^.+\\.css$": "<rootDir>/config/jest/cssTransform.js",
"^(?!.*\\.(js|jsx|ts|tsx|css|json)$)": "<rootDir>/config/jest/fileTransform.js"
},
"transformIgnorePatterns": [
"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|ts|tsx)$",
"^.+\\.module\\.(css|sass|scss)$"
],
"moduleNameMapper": {
"^react-native$": "react-native-web",
"^.+\\.module\\.(css|sass|scss)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"web.js",
"js",
"web.ts",
"ts",
"web.tsx",
"tsx",
"json",
"web.jsx",
"jsx",
"node"
]
},
"babel": {
"presets": [
"react-app"
]
},
"devDependencies": {
"@babel/preset-env": "^7.3.1",
"@babel/preset-react": "^7.0.0",
"@babel/preset-stage-0": "^7.0.0",
"awesome-typescript-loader": "^5.2.1",
"babel-preset-env": "^1.7.0",
"chai": "^4.2.0",
"enzyme": "^3.8.0",
"enzyme-adapter-react-16": "^1.9.1",
"jsdom": "^13.2.0",
"mocha": "^5.2.0",
"react-addons-test-utils": "^15.6.2",
"source-map-loader": "^0.2.4",
"typescript": "^3.2.2"
}
}
当我运行npm测试时:我有:
C:\Users\kino96\Desktop\JavaScript\OurFirstProject\src\App.test.js:1
(函数(导出、要求、模块、_文件名、_目录名){import
从“反应”开始反应
SyntaxError:意外的标识符
在新脚本中(vm.js:79:7)
在createScript上(vm.js:251:10)
您需要告诉Mocha,它应该在您的测试文件中使用Babel。文档()似乎已经过时,但这应该可以:
"devDependencies": {
...
"@babel/register"
},
"scripts": {
...
"test": "mocha --require @babel/register src/App.test.js"
}
看到了吗:当我添加“-require babel register”时,它现在显示:
错误:Requires babel“^7.0.0-0”,但加载了“6.26.3”。如果您确定您有一个兼容版本的@babel/core,则很可能是您的构建过程中加载了错误的版本
谢谢我按照您所说的做了,现在我遇到了另一个错误:它显示错误:[babel]C:\Users\kino96\Desktop\JavaScript\OurFirstProject\src\App.test.js:使用'babel preset react App'需要指定'NODE_ENV'或'babel_ENV'环境变量。有效值为“development”、“test”和“production”。相反,收到:undefined
这意味着什么?我需要添加其他内容吗?这是一个与您的问题无关的错误,但您应该能够使用“test”:“env NODE_env=test mocha…”
(或用于设置环境变量的Windows等效工具,或使用)。
{
"presets": ["@babel/preset-react", "@babel/preset-env"]
}
"devDependencies": {
...
"@babel/register"
},
"scripts": {
...
"test": "mocha --require @babel/register src/App.test.js"
}