Menu
I have a React project based on React Redux Starter Kit.
In Jest tests: when I trying to import something with root-based path like "components/Link" - it does not work. Only relative paths are working.
Putting
{ "jest": { "rootDir": "<rootDir>/src" } }
in file package.json does not work.
Is there another way?
{
"name": "react-redux-starter-kit",
"version": "3.0.0-alpha.2",
"description": "",
"main": "index.js",
"engines": {
"node": ">=4.5.0",
"npm": "^3.0.0"
},
"scripts": {
"clean": "rimraf dist",
"compile": "better-npm-run compile",
"lint": "eslint bin build config server src tests",
"lint:fix": "npm run lint -- --fix",
"start": "better-npm-run start",
"dev": "better-npm-run dev",
"test": "jest",
"test:dev": "npm run test -- --watch",
"deploy": "better-npm-run deploy",
"deploy:dev": "better-npm-run deploy:dev",
"deploy:prod": "better-npm-run deploy:prod",
"codecov": "cat coverage/*/lcov.info | codecov"
},
"betterScripts": {
"compile": {
"command": "node bin/compile",
"env": {
"DEBUG": "app:*"
}
},
"dev": {
"command": "nodemon bin/server --ignore dist --ignore coverage --ignore tests --ignore src",
"env": {
"NODE_ENV": "development",
"DEBUG": "app:*"
}
},
"deploy": {
"command": "npm run lint && npm run clean && npm run compile",
"env": {
"DEBUG": "app:*"
}
},
"deploy:dev": {
"command": "npm run deploy",
"env": {
"NODE_ENV": "development",
"DEBUG": "app:*"
}
},
"deploy:prod": {
"command": "npm run deploy",
"env": {
"NODE_ENV": "production",
"DEBUG": "app:*"
}
},
"start": {
"command": "node bin/server",
"env": {
"DEBUG": "app:*"
}
},
"test": {
"command": "node ./node_modules/karma/bin/karma start build/karma.conf",
"env": {
"NODE_ENV": "test",
"DEBUG": "app:*"
}
}
},
"repository": {
"type": "git",
"url": "git+https://github.com/davezuko/react-redux-starter-kit.git"
},
"author": "MyCityOnline",
"license": "MIT",
"dependencies": {
"babel-core": "^6.18.2",
"babel-loader": "^6.2.5",
"babel-plugin-transform-runtime": "^6.15.0",
"babel-preset-es2015": "^6.14.0",
"babel-preset-react": "^6.11.1",
"babel-preset-stage-0": "^6.3.13",
"babel-runtime": "^6.11.6",
"better-npm-run": "0.0.11",
"cropperjs": "^1.0.0-beta.2",
"css-loader": "^0.25.0",
"cssnano": "^3.7.4",
"debug": "^2.2.0",
"dotenv": "^2.0.0",
"es6-promise": "^4.1.0",
"essence-core": "^1.0.20",
"essence-switch": "^1.0.10",
"exports-loader": "^0.6.3",
"extract-text-webpack-plugin": "^1.0.0",
"file-loader": "^0.9.0",
"font-awesome": "^4.7.0",
"fs-extra": "^0.30.0",
"html-webpack-plugin": "^2.22.0",
"imports-loader": "^0.6.5",
"ip": "^1.1.2",
"isomorphic-fetch": "^2.2.1",
"json-loader": "^0.5.4",
"jwt-decode": "^2.1.0",
"lodash": "^4.16.3",
"moment": "^2.17.1",
"node-sass": "^3.7.0",
"normalize.css": "^4.1.1",
"pikaday": "^1.5.1",
"postcss-loader": "^0.13.0",
"react": "^15.0.0",
"react-dom": "^15.0.0",
"react-redux": "^4.4.5",
"react-router": "^2.8.0",
"redux": "^3.6.0",
"redux-api-middleware": "^1.0.2",
"redux-thunk": "^2.0.0",
"rimraf": "^2.5.4",
"sass-loader": "^4.0.0",
"style-loader": "^0.13.1",
"url-loader": "^0.5.6",
"webpack": "^1.12.14",
"whatwg-fetch": "^2.0.1",
"yargs": "^5.0.0"
},
"devDependencies": {
"babel-eslint": "^6.0.0-beta.6",
"babel-jest": "^19.0.0",
"babel-plugin-istanbul": "^2.0.1",
"breakpoint-sass": "^2.7.0",
"chai": "^3.4.1",
"chai-as-promised": "^5.3.0",
"chai-enzyme": "^0.5.0",
"cheerio": "^0.20.0",
"codecov": "^1.0.1",
"connect-history-api-fallback": "^1.3.0",
"enzyme": "^2.0.0",
"eslint": "^3.0.1",
"eslint-config-standard": "^6.2.1",
"eslint-config-standard-react": "^4.0.0",
"eslint-plugin-babel": "^3.2.0",
"eslint-plugin-promise": "^3.3.0",
"eslint-plugin-react": "^6.0.0",
"eslint-plugin-standard": "^2.0.0",
"express": "^4.14.0",
"http-proxy-middleware": "^0.17.2",
"jest": "^19.0.2",
"karma": "^1.0.0",
"karma-coverage": "^1.0.0",
"karma-mocha": "^1.0.1",
"karma-mocha-reporter": "^2.0.0",
"karma-phantomjs-launcher": "^1.0.2",
"karma-webpack-with-fast-source-maps": "^1.9.2",
"less": "^2.7.1",
"less-loader": "^2.2.3",
"mocha": "^3.0.1",
"nodemon": "^1.10.2",
"phantomjs-prebuilt": "^2.1.12",
"react-addons-test-utils": "^15.0.0",
"redbox-react": "^1.2.10",
"redux-logger": "^2.6.1",
"regenerator-runtime": "^0.10.3",
"sinon": "^1.17.5",
"sinon-chai": "^2.8.0",
"susy": "^2.2.12",
"webpack-dev-middleware": "^1.6.1",
"webpack-hot-middleware": "^2.12.2"
},
"jest": {
"rootDir": "<rootDir>/src"
}
}
Final working Jest part of file package.json:
"jest": {
"rootDir": "./src/",
"moduleFileExtensions": ["js", "jsx"],
"moduleDirectories": ["node_modules", "bower_components", "src"],
"verbose": true
}
538
Jest can be used to mock ES6 classes that are imported into files you want to test. ES6 classes are constructor functions with some syntactic sugar. Therefore, any mock for an ES6 class must be a function or an actual ES6 class (which is, again, another function). So you can mock them using mock functions.
Jest supports TypeScript, via Babel. First, make sure you followed the instructions on using Babel above. Next, install the @babel/preset-typescript : npm.
The pattern Jest uses to detect test files. By default it looks for . js and . jsx files inside of __tests__ folders, as well as any files with a suffix of .
I think that if you don't want to use relative paths, you have to define additional moduleDirectories, like
// package.json
{
"jest": {
"moduleFileExtensions": ["js", "jsx"],
"moduleDirectories": ["node_modules", "bower_components", "src"],
}
}
More about moduleDirectories in jest docs and configuring jest to find files.
158
Modifying moduleFileExtensions and moduleDirectories did not work for me. This did in jest.config.js:
moduleNameMapper: {
"src/(.*)": "<rootDir>/src/$1",
},
I found the solution here and found I ony needed to change moduleNameMapper.
https://til.hashrocket.com/posts/lmnsdtce3y-import-absolute-paths-in-typescript-jest-tests
45
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
