jest.config.js

// jest.config.js
module.exports = {
    roots: ["./"],
    collectCoverageFrom: ["./**/*.{js,jsx,ts,tsx}", "!src/**/*.d.ts"],
    // setupFilesAfterEnv: ["<rootDir>/setupTests.js"],
    testMatch: [
      "./**/__tests__/**/*.{js,jsx,ts,tsx}",
      "./**/*.{spec,test}.{js,jsx,ts,tsx}",
    ],
    testEnvironment: "node",
    transform: {
      "^.+\\.(js|jsx|ts|tsx)$": "./node_modules/babel-jest",
    },
    transformIgnorePatterns: ["[/\\\\]node_modules[/\\\\].+\\.(js|jsx|ts|tsx)$"],
    modulePaths: [],
    moduleNameMapper: {
      "^react-native$": "react-native-web",
      "\\.(css|less|scss|sss|styl)$": "./node_modules/jest-css-modules",
    },
    moduleFileExtensions: [
      "web.js",
      "js",
      "json",
      "web.jsx",
      "jsx",
      "node",
      "ts",
      "tsx",
    ],
    // watchPlugins: [
    //   "jest-watch-typeahead/filename",
    //   "jest-watch-typeahead/testname",
    // ],
  };