jest.config.js

// jest.config.js

module.exports = {
    collectCoverageFrom: [
        "**/*.{js,jsx,ts,tsx}",
        "!**/*.d.ts",
        "!**/node_modules/**",
    ],
    moduleNameMapper: {
        /* Handle CSS imports (with CSS modules)
        https://jestjs.io/docs/webpack#mocking-css-modules */
        "^.+\\.module\\.(css|sass|scss)$": "identity-obj-proxy",

        // Handle CSS imports (without CSS modules)
        "^.+\\.(css|sass|scss)$": "<rootDir>/__mocks__/styleMock.js",

        /* Handle image imports
        https://jestjs.io/docs/webpack#handling-static-assets */
        "^.+\\.(jpg|jpeg|png|gif|webp|svg)$": "<rootDir>/__mocks__/fileMock.js",
    },
    testPathIgnorePatterns: ["<rootDir>/node_modules/", "<rootDir>/.next/"],
    testEnvironment: "jsdom",
    transform: {
        /* Use babel-jest to transpile tests with the next/babel preset
        https://jestjs.io/docs/configuration#transform-objectstring-pathtotransformer--pathtotransformer-object */
        "^.+\\.(js|jsx|ts|tsx)$": ["babel-jest", { presets: ["next/babel"] }],
    },
    transformIgnorePatterns: [
        "/node_modules/",
        "^.+\\.module\\.(css|sass|scss)$",
    ],
    setupFilesAfterEnv: ["<rootDir>/jest.setup.js"],
};