jest.config.js

module.exports = {
    clearMocks: true,
    coverageDirectory: "coverage",

    // An array of regexp pattern strings used to skip coverage collection
    coveragePathIgnorePatterns: [
        "node_modules"
    ],

    // An array of directory names to be searched recursively up from the requiring module's location
    // moduleDirectories: [
    //   "node_modules"
    // ],

    // An array of regexp pattern strings, matched against all module paths before considered 'visible' to the module loader
    // modulePathIgnorePatterns: [],

    // Reset the module registry before running each individual test
    // resetModules: false,

    // A path to a custom resolver
    // resolver: null,

    // The root directory that Jest should scan for tests and modules within
    //rootDir: "tests",

    // A list of paths to directories that Jest should use to search for files in
    // roots: [
    //   "<rootDir>"
    // ],

    // The paths to modules that run some code to configure or set up the testing environment before each test
    // setupFiles: [],

    // A list of paths to modules that run some code to configure or set up the testing framework before each test
    // setupFilesAfterEnv: [],

    // A list of paths to snapshot serializer modules Jest should use for snapshot testing
    // snapshotSerializers: [],

    // The test environment that will be used for testing
    testEnvironment: "node",

    // Options that will be passed to the testEnvironment
    // testEnvironmentOptions: {},

    // Adds a location field to test results
    // testLocationInResults: false,

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

    // An array of regexp pattern strings that are matched against all test paths, matched tests are skipped
    testPathIgnorePatterns: [
        "node_modules"
    ],

    // The regexp pattern or array of patterns that Jest uses to detect test files
    testRegex: [
        "\\.test\\.js$"
    ],

    // This option allows the use of a custom results processor
    // testResultsProcessor: null,

    // This option allows use of a custom test runner
    // testRunner: "jasmine2",

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

    // Setting this value to "fake" allows the use of fake timers for functions such as "setTimeout"
    // timers: "real",

    // A map from regular expressions to paths to transformers
    // transform: null,

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

    // An array of regexp pattern strings that are matched against all modules before the module loader will automatically return a mock for them
    // unmockedModulePathPatterns: undefined,

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

    // An array of regexp patterns that are matched against all source file paths before re-running tests in watch mode
    // watchPathIgnorePatterns: [],

    // Whether to use watchman for file crawling
    // watchman: true,
};