Cannot resolve module @env when running jest
Clumsy-Coder opened this issue · 7 comments
Clumsy-Coder commented
Following the guide from link
Jest can't seem to find the dotenv module.
babel.config.js
module.exports = {
presets: ['module:metro-react-native-babel-preset'],
plugins: [
[
'dotenv-import',
{
moduleName: '@env',
path: '.env',
},
],
[
'module-resolver',
{
root: ['.'],
extensions: ['.ios.js', '.android.js', '.js', '.ts', '.tsx', '.json'],
alias: {
'tests/*': './__tests__',
src: './src',
'@redux': './src/redux/',
'@components': './src/components/',
'@containers': './src/containers/',
'@routes': './src/routes/',
'@screens': './src/screens/',
'@share': './src/share/',
'@configs': './src/configs/',
},
},
],
],
};jest config
module.exports = {
preset: 'react-native',
moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx', 'json', 'node'],
verbose: false,
collectCoverage: false,
collectCoverageFrom: [
'**/*.{js,jsx, ts, tsx}',
'./src/**',
'!**/node_modules/**',
'!**/android/**',
'!**/ios/**',
'!**/.vscode/**',
'!**/.circleci/**',
'!metro.config.js',
'!babel.config.js',
'!jest.config.js',
'!./test-results/**',
'!./src/configs/**',
'!./src/**/**/tests/**/*.test.ts.snap',
'!./src/**/**/tests/**/*.test.ts?.snap',
'!./coverage/**',
],
// coverageDirectory: './test-results/coverage/',
coverageReporters: ['text', 'text-summary', 'lcov', 'clover', 'json'],
reporters: [
'default',
[
'jest-html-reporters',
{
publicPath: './test-results/',
filename: 'test-report.html',
expand: true,
},
],
[
'jest-junit',
{
outputDirectory: './test-results/junit',
},
],
],
transform: {
'^.+\\.js$': '<rootDir>/node_modules/react-native/jest/preprocessor.js',
'\\.(ts|tsx)$': 'ts-jest',
},
globals: {
'ts-jest': {
tsConfig: 'tsconfig.jest.json',
babelConfig: 'babel.config.js',
},
},
setupFiles: ['./jest.setup.js', './node_modules/react-native-gesture-handler/jestSetup.js'],
transformIgnorePatterns: [
// eslint-disable-next-line max-len
'node_modules/(?!(jest-)?react-native|@?react-navigation|native-base|native-base-[a-z, -]*|victory-*|react-native-vector-icons)',
],
snapshotSerializers: ['enzyme-to-json/serializer'],
setupFilesAfterEnv: ['@testing-library/react-native/cleanup-after-each'],
};tsconfig.json
{
"compilerOptions": {
/* Basic Options */
// "incremental": true, /* Enable incremental compilation */
"target": "ESNext", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
"module": "commonjs", /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
"lib": ["ES6"], /* Specify library files to be included in the compilation. */
"allowJs": true, /* Allow javascript files to be compiled. */
// "checkJs": true, /* Report errors in .js files. */
"jsx": "react", /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
// "declaration": true, /* Generates corresponding '.d.ts' file. */
// "declarationMap": true, /* Generates a sourcemap for each corresponding '.d.ts' file. */
// "sourceMap": true, /* Generates corresponding '.map' file. */
// "outFile": "./", /* Concatenate and emit output to single file. */
// "outDir": "./", /* Redirect output structure to the directory. */
// "rootDir": "./", /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
// "composite": true, /* Enable project compilation */
// "tsBuildInfoFile": "./", /* Specify file to store incremental compilation information */
"removeComments": true, /* Do not emit comments to output. */
"noEmit": true, /* Do not emit outputs. */
// "importHelpers": true, /* Import emit helpers from 'tslib'. */
// "downlevelIteration": true, /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
"isolatedModules": true, /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
/* Strict Type-Checking Options */
"strict": true, /* Enable all strict type-checking options. */
// "noImplicitAny": true, /* Raise error on expressions and declarations with an implied 'any' type. */
// "strictNullChecks": true, /* Enable strict null checks. */
// "strictFunctionTypes": true, /* Enable strict checking of function types. */
// "strictBindCallApply": true, /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
// "strictPropertyInitialization": true, /* Enable strict checking of property initialization in classes. */
// "noImplicitThis": true, /* Raise error on 'this' expressions with an implied 'any' type. */
// "alwaysStrict": true, /* Parse in strict mode and emit "use strict" for each source file. */
/* Additional Checks */
// "noUnusedLocals": true, /* Report errors on unused locals. */
// "noUnusedParameters": true, /* Report errors on unused parameters. */
// "noImplicitReturns": true, /* Report error when not all code paths in function return a value. */
// "noFallthroughCasesInSwitch": true, /* Report errors for fallthrough cases in switch statement. */
/* Module Resolution Options */
"moduleResolution": "node", /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
"baseUrl": ".", /* Base directory to resolve non-absolute module names. */
"paths": { /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
"src": ["src/*"],
"@redux/*": ["src/redux/*"],
"@components/*": ["src/components/*"],
"@containers/*": ["src/containers/*"],
"@routes/*": ["src/routes/*"],
"@screens/*": ["src/screens/*"],
"@share/*": ["src/share/*"],
"@configs/*": ["src/configs/*"],
"tests": ["__tests__/*"],
},
// "rootDirs": [], /* List of root folders whose combined content represents the structure of the project at runtime. */
// "typeRoots": [], /* List of folders to include type definitions from. */
// "types": [], /* Type declaration files to be included in compilation. */
"allowSyntheticDefaultImports": true, /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
"esModuleInterop": true, /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
// "preserveSymlinks": true, /* Do not resolve the real path of symlinks. */
// "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
/* Source Map Options */
// "sourceRoot": "", /* Specify the location where debugger should locate TypeScript files instead of source locations. */
// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSourceMap": true, /* Emit a single file with source maps instead of having a separate file. */
// "inlineSources": true, /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
/* Experimental Options */
// "experimentalDecorators": true, /* Enables experimental support for ES7 decorators. */
// "emitDecoratorMetadata": true, /* Enables experimental support for emitting type metadata for decorators. */
/* Advanced Options */
"forceConsistentCasingInFileNames": true, /* Disallow inconsistently-cased references to the same file. */
"resolveJsonModule": true /* Include modules imported with .json extension. */
},
"exclude": [
"node_modules",
"test-results/",
]
}tsconfig.jest.json
{
"extends": "./tsconfig.json",
"compilerOptions": {
"jsx": "react",
"module": "commonjs"
}
}Clumsy-Coder commented
Also eslint complains the module doesn't exist
Harukisatoh commented
Same to me, I did a workaround on the eslint error disabling eslint on that import line, but i couldn't figure out the problem with jest
goatandsheep commented
Would some of these suggestions help? goatandsheep/react-native-dotenv#52
Deleted user commented
jest.mock("@env", () => {
return {
...
URL_API: "http://someURL.com"
...
};
});
Code above not working unfortunately :/
Any update on this issue or someone has a temporary fix?
oliveirasWell commented
I solved using this:
jest.config.js
...
setupFilesAfterEnv: ['@testing-library/jest-native/extend-expect', './setupJestMock.js'],
moduleNameMapper: {
...,
"^@env(.*)$": "<rootDir>/.env.test$1"
},
setupJestMock.js
jest.mock("@env", () => ({
YOUR_BEATFUL_VAR: "YOUR_BEATFUL_VAR",
}));
babel.config.js
plugins: [
...
[
"dotenv-import",
{
"moduleName": "@env",
"path": ".env",
"blacklist": null,
"whitelist": null,
"safe": false,
"allowUndefined": true
}
],
...
And also create the types at types/env.d.ts
declare module '@env' {
export const YOUR_BEATFUL_VAR: string;
}
This is it :)
trajano commented
@oliveirasWell that makes it resolve but you can't use it in a mock. All the values are undefined.
jimbali commented
I hate that this is the solution but it's the only thing that worked 😭😂