jest.config.js

module.exports = {
    // Automatically clear mock calls and instances between every test
    clearMocks: true,

    // An array of glob patterns indicating a set of files for which coverage information should be collected
    collectCoverageFrom: ['src/**/*.{ts,tsx}'],

    // The directory where Jest should output its coverage files
    coverageDirectory: 'coverage',

    // An array of file extensions your modules use
    moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx'],

    // The test environment that will be used for testing
    testEnvironment: 'jsdom',

    // The glob patterns Jest uses to detect test files
    testMatch: ['**/__tests__/**/*.ts?(x)', '**/?(*.)+(spec|test).ts?(x)'],

    // An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
    testPathIgnorePatterns: ['\\\\node_modules\\\\', '<rootDir>/dist/'],

    // This option sets the URL for the jsdom environment. It is reflected in properties such as location.href
    testURL: 'http://localhost',

    // An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
    transformIgnorePatterns: ['<rootDir>/node_modules/'],

    // Indicates whether each individual test should be reported during the run
    verbose: true,
}