jest.config.ts

import { Config } from 'jest';

// For a detailed explanation regarding each configuration property, visit:
// https://jestjs.io/docs/en/configuration.html
const config: Config = {
  // All imported modules in your tests should be mocked automatically
  automock: false,

  // Stop running tests after `n` failures
  bail: false,

  // Respect "browser" field in package.json when resolving modules
  // browser: false,

  cache: true,

  // The directory where Jest should store its cached dependency information
  cacheDirectory: `./.cache-jest`,

  // Automatically clear mock calls and instances between every test
  clearMocks: true,

  // Indicates whether the coverage information should be collected while executing the test
  collectCoverage: false,

  // An array of glob patterns indicating a set of files for which coverage information should be collected
  // collectCoverageFrom: undefined,

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

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

  // A list of reporter names that Jest uses when writing coverage reports
  coverageReporters: [`json`, `text-summary`, `lcov`],

  // An object that configures minimum threshold enforcement for coverage results
  // coverageThreshold: undefined,

  // A path to a custom dependency extractor
  // dependencyExtractor: undefined,

  displayName: {
    color: `magenta`,
    name: `Sonia`,
  },

  // Make calling deprecated APIs throw helpful error messages
  errorOnDeprecated: true,

  // Setting this value (enableGlobally) to "true" allows the use of fake timers for functions such as "setTimeout"
  fakeTimers: {
    enableGlobally: true,
  },

  // Force coverage collection from ignored files using an array of glob patterns
  // forceCoverageMatch: [],

  // A path to a module which exports an async function that is triggered once before all test suites
  // globalSetup: undefined,

  // A path to a module which exports an async function that is triggered once after all test suites
  // globalTeardown: undefined,

  // A set of global variables that need to be available in all test environments
  globals: {
    'ts-jest': {
      compiler: `ttypescript`,
      tsconfig: `tsconfig.spec.json`,
    },
  },

  // The maximum amount of workers used to run your tests. Can be specified as % or a number. E.g. maxWorkers: 10% will use 10% of your CPU amount + 1 as the maximum worker number. maxWorkers: 2 will use a maximum of 2 workers.
  // maxWorkers: "50%",

  maxConcurrency: 5,

  // 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: [],

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

  // A map from regular expressions to module names that allow to stub out resources with a single module
  moduleNameMapper: {
    // See https://github.com/axios/axios/issues/5101#issuecomment-1276572468
    '^axios$': require.resolve(`axios`),
    'whatwg-url': require.resolve(`node-fetch`),
  },

  // Activates notifications for test results
  notify: true,

  // An enum that specifies notification mode. Requires { notify: true }
  notifyMode: `failure-change`,

  // Run tests from one or more projects
  // projects: undefined,

  // A preset that is used as a base for Jest's configuration
  preset: `ts-jest/presets/js-with-ts`,

  prettierPath: `prettier`,

  // Use this configuration option to add custom reporters to Jest
  reporters: [
    [
      `jest-silent-reporter`,
      {
        showPaths: true,
        showWarnings: true,
        useDots: true,
      },
    ],
  ],

  // Automatically reset mock state between every test
  resetMocks: true,

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

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

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

  // Automatically restore mock state between every test
  restoreMocks: true,

  // Allows you to use a custom runner instead of Jest's default test runner
  // runner: "jest-runner",

  // A list of paths to directories that Jest should use to search for files in
  roots: [`./src`, `./scripts`, `./jest`],

  // The paths to modules that run some code to configure or set up the testing environment before each test
  setupFiles: [`./jest/config.ts`, `./jest/helpers.js`],

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

  // A list of paths to modules that run some code to configure or set up the testing framework before each test
  setupFilesAfterEnv: [`jest-extended/all`, `./jest/test.ts`],

  // Prevent tests from printing messages through the console
  silent: true,

  // 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: [`./**/*.spec.ts`],

  // 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: [],

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

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

  testTimeout: 5000,

  // 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,

  // A map from regular expressions to paths to transformers
  transform: {
    '^.+\\.ts?$': `ts-jest`,
  },

  // An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
  // transformIgnorePatterns: [`/node_modules/(?!(x)/)`],

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

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

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

// eslint-disable-next-line import/no-default-export
export default config;