{"id":801,"hash":"6dc958406320c816e0a314a5788ec1cc19dc22415d287e7cb43b0273d9fd3229","pattern":"Testing React app with Jest, using Vite as a module Bundler; import.meta error","full_message":"i am testing a React-Typescript application with Jest; my application uses Vite as a module bundler.\nThe issue is, everytime i run tests and jest encounters an import.meta.ENV_VAR_NAME  statement i get the following error: \"SyntaxError: Cannot use 'import.meta' outside a module\"\n\nThis is my jest.config.js file:\n\nmodule.exports = {\nroots: [\"<rootDir>/src\"],\nsetupFilesAfterEnv: [\"<rootDir>/jest/jest.setup.js\"],\ncollectCoverageFrom: [\"src//*.{js,jsx,ts,tsx}\", \"!src//.d.ts\"],\ntestMatch: [\n    \"<rootDir>/src//tests//.{js,jsx,ts,tsx}\",\n    \"<rootDir>/src/*/.{spec,test}.{js,jsx,ts,tsx}\"\n],\ntestEnvironment: \"jsdom\",\ntransform: {\n    // \"^.+\\.(js|jsx|mjs|cjs|ts|tsx)$\": \"esbuild-jest\",\n    \"^.+\\.(js|jsx|mjs|cjs|ts|tsx)$\": \"@swc/jest\",\n    \"^.+\\.scss$\": \"jest-scss-transform\",\n    \"^.+\\.css$\": \"<rootDir>/jest/mocks/cssMock.js\"\n},\ntransformIgnorePatterns: [\n    \"[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$\",\n    \"^.+\\.module\\.(css|sass|scss)$\"\n],\nwatchPlugins: [\n    \"jest-watch-typeahead/filename\",\n    \"jest-watch-typeahead/testname\"\n],\nresetMocks: true,\nmoduleDirectories: [\"node_modules\", \"src\"],\nmoduleNameMapper: {\n    \"\\.worker\": \"<rootDir>/src/seo/mocks/workerMock.ts\",\n    \"\\.(css|sass|scss)$\": \"identity-obj-proxy\"\n}\n};\n\nIn transform key of jest.config i tried using either @swc/jest and esbuild-jest, but none fixed the import.meta issue; is there a solution to this problem? Can i achieve it without using Babel?\n\nThanks in advance for your time","ecosystem":"npm","package_name":"reactjs","package_version":null,"solution":"https://codingwithmanny.medium.com/quick-jest-setup-with-vitejs-react-typescript-82f325e4323f\nrefer the above link for setting up Jest in your Vite project.\ninstall this plugin (https://www.npmjs.com/package/vite-plugin-environment)\ncreate .env file in your project root folder near package.json\nprovide your env variables in .env files\nchange all your import.meta.env.YOUR_VAR to process.env.YOUR_VAR\nopen vite.config.ts and import import EnvironmentPlugin from 'vite-plugin-environment';\nadd EnvironmentPlugin('all') in plugins. example: plugins: [react(), EnvironmentPlugin('all')]\nnow your test will pass without import.meta.env error.\nthe explanation behind this config is that Jest will understand process.env.YOUR_VAR, so if you change all your import.meta.env.YOUR_VAR to process.env.YOUR_VAR then Jest will not give error.\nBut then we have to provide vite-plugin-environment to Vite Config so that it understands process.env.YOUR_VAR\nit works in production as well.","confidence":0.95,"source":"stackoverflow","source_url":"https://stackoverflow.com/questions/69613533/testing-react-app-with-jest-using-vite-as-a-module-bundler-import-meta-error","votes":9,"created_at":"2026-04-19T04:51:44.610686+00:00","updated_at":"2026-04-19T04:51:44.610686+00:00"}