jest.config.js

// Jest.config.js
const nextJest = require("next/jest");

const createJestConfig = nextJest({
    // Provide the path to your Next.js app to load next.config.js and .env files in your test environment
    dir: "./"
});

// Jest.config.js
const customConfig = {
    // Automatically clear mock calls and instances between every test
    "clearMocks": true,
    // The directory where Jest should output its coverage files
    "coverageDirectory": ".coverage",
    // A map from regular expressions to module names or to arrays of module names that allow to stub out resources with a single module
    moduleNameMapper: {
        "^@/components(.*)$": "<rootDir>/src/components$1"
    },
    // A list of paths to modules that run some code to configure or set up the testing framework before each test
    "setupFilesAfterEnv": ["./jest.setup.js"],
    // By default jest will use a node environment, so DOM elements (like document) will be undefined without this
    "testEnvironment": "jsdom",
    // Collect coverage with Jest Sonar Reporter
    collectCoverage: true,
    collectCoverageFrom: ["src/**/*.{ts,tsx}"],
    testResultsProcessor: "jest-sonar-reporter",
};

module.exports = createJestConfig(customConfig);