jest.config.json

{
    "roots": ["<rootDir>/src"],
    "moduleFileExtensions": ["ts", "tsx", "js", "jsx", "json", "scss"],
    "moduleDirectories": ["node_modules"],
    "setupFiles": ["<rootDir>/src/setupTests.ts"],
    "collectCoverageFrom": [
        "src/**/*.{js,jsx,ts,tsx}",
        "!src/**/*.d.ts",
        "!src/index.tsx",
        "!src/serviceWorker.ts"
    ],
    "coveragePathIgnorePatterns": [
        "./src/*/*.types.{ts,tsx}",
        "./src/index.tsx",
        "./src/serviceWorker.ts"
    ],
    "coverageReporters": ["json", "lcov", "text", "text-summary", "clover"],
    "collectCoverage": true,
    "coverageDirectory": "test-coverage",
    "coverageThreshold": {
        "global": {
            "statements": 10,
            "branches": 10,
            "lines": 10,
            "functions": 10
        }
    },
    "snapshotSerializers": ["enzyme-to-json/serializer"],
    "moduleNameMapper": {
        "\\.(css|styl|less|sass|scss)$": "identity-obj-proxy"
    },
    "testRegex": "(/__tests__/.*|(\\.|/)(test|spec))\\.tsx?$",
    "transform": {
        "^.+\\.tsx?$": "ts-jest",
        "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/node_modules/babel-jest"
    }
}