[英]Trying to use jest with create-react-app and typescript. Get error: Jest: Failed to parse the TypeScript config file... Cannot find module 'ts-node'
我已经使用 typescript 设置了一个 create-react-app,遵循此页面上的文档: https://create-react-app.dev/docs/adding-typescript/然后关注此页面: Z5E056C500A1C4BADE5Z11 .io/docs/getting-started
当我尝试运行脚本时: jest sum --notify
我收到以下错误:
Error: Jest: Failed to parse the TypeScript config file /home/.../jest-playground/jest.config.ts
Error: Jest: 'ts-node' is required for the TypeScript configuration files. Make sure it is installed
Error: Cannot find module 'ts-node'
但是我的依赖项中安装了ts-node
。 package.json:
"dependencies": {
"@testing-library/jest-dom": "^5.11.4",
"@testing-library/react": "^11.1.0",
"@testing-library/user-event": "^12.1.10",
"@types/jest": "^26.0.15",
"@types/node": "^12.0.0",
"@types/react": "^17.0.0",
"@types/react-dom": "^17.0.0",
"react": "^17.0.2",
"react-dom": "^17.0.2",
"react-scripts": "4.0.3",
"ts-jest": "^27.0.7",
"ts-node": "^10.4.0",
"typescript": "^4.1.2",
"web-vitals": "^1.0.1"
},
该应用程序运行正常,但我无法进行测试?
它没有安装 test-jest 也没有 jest 配置
1, yarn add --dev ts-jest @types/jest
2, yarn ts-jest config:init
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