module.exports = { setupFiles: ["/test/setup-tests.js"], setupFilesAfterEnv: ["/scripts/setup-test-framework.js"], transform: { "^.+\\.js$": "/test/transform-babel-jest.js", }, /* It solves css/less/scss import issues. You might have similar issues with different file extensions (e.g. md). Just search for " jest loader" */ moduleNameMapper: { "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)(\\?url)?$": "/test/transform-file.js", "\\.css$": "/test/style-mock.js", }, coverageReporters: ["json", "lcov", "text", "clover", "cobertura"], };