jest.config.js

/*
 * For a detailed explanation regarding each configuration property, visit:
 * https://jestjs.io/docs/configuration
 */

module.exports = {
  // All imported modules in your tests should be mocked automatically
  // automock: false,

  // Stop running tests after `n` failures
  // bail: 0,

  // The directory where Jest should store its cached dependency information
  // cacheDirectory: "/private/var/folders/2d/c_47t7516j3fmy53gnzf7q780000gn/T/jest_dx",

  // 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: undefined,

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

  // Indicates which provider should be used to instrument code for coverage
  // coverageProvider: "babel",

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

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

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

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

  // 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: {},

  // 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%",

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

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

  // A map from regular expressions to module names or to arrays of module names that allow to stub out resources with a single module
  // Allows using import aliases
  // moduleNameMapper: {}

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

  // Activates notifications for test results
  // notify: false,

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

  // A preset that is used as a base for Jest's configuration
  preset: "@shelf/jest-mongodb",

  projects: [
    {
      displayName: "core",
      moduleNameMapper: {
        "^@core/(.*)$": "<rootDir>/packages/core/src/$1",
      },
      testEnvironment: "node",
      testMatch: ["<rootDir>/packages/core/**/?(*.)+(spec|test).[tj]s?(x)"],
    },
    {
      displayName: "web",
      moduleNameMapper: {
        "\\.(jpg|jpeg|png|gif)$":
          "<rootDir>/packages/web/src/__tests__/__mocks__/file.stub.js",
        "^@core/(.*)$": "<rootDir>/packages/core/src/$1",
        "^@web/__tests__/(.*)$": "<rootDir>/packages/web/src/__tests__/$1",
        "^@web/assets/(.*)$": "<rootDir>/packages/web/src/assets/$1",
        "^@web/common/(.*)$": "<rootDir>/packages/web/src/common/$1",
        "^@web/components/(.*)$": "<rootDir>/packages/web/src/components/$1",
        "^@web/containers/(.*)$": "<rootDir>/packages/web/src/containers/$1",
        "^@web/ducks/(.*)$": "<rootDir>/packages/web/src/ducks/$1",
        "^@web/public/(.*)$": "<rootDir>/packages/web/src/public/$1",
        "^@web/routers/(.*)$": "<rootDir>/packages/web/src/routers/",
        "^@web/store/(.*)$": "<rootDir>/packages/web/src/store/$1",
        "^@web/views/(.*)$": "<rootDir>/packages/web/src/views/$1",
        "^.+\\.(css|less)$":
          "<rootDir>/packages/web/src/__tests__/__mocks__/css.stub.js",
        "\\.(svg)$":
          "<rootDir>/packages/web/src/__tests__/__mocks__/svg.stub.js",
        "^uuid$": "uuid",
      },
      setupFiles: ["<rootDir>/packages/web/src/__tests__/web.test.init.js"],
      setupFilesAfterEnv: [
        "<rootDir>/packages/web/src/__tests__/web.test.start.js",
      ],
      testEnvironment: "jsdom",
      testMatch: ["<rootDir>/packages/web/**/?(*.)+(spec|test).[tj]s?(x)"],
      transformIgnorePatterns: [
        //https://github.com/react-dnd/react-dnd/issues/3443
        "/node_modules/(?!react-dnd|dnd-core|@react-dnd)",
      ],
    },
    {
      displayName: "backend",
      moduleNameMapper: {
        "^@core/(.*)$": "<rootDir>/packages/core/src/$1",
        "^@backend/auth/(.*)$": "<rootDir>/packages/backend/src/auth/$1",
        "^@backend/calendar/(.*)$":
          "<rootDir>/packages/backend/src/calendar/$1",
        "^@backend/common/(.*)$": "<rootDir>/packages/backend/src/common/$1",
        "^@backend/dev/(.*)$": "<rootDir>/packages/backend/src/dev/$1",
        "^@backend/event/(.*)$": "<rootDir>/packages/backend/src/event/$1",
        "^@backend/priority/(.*)$":
          "<rootDir>/packages/backend/src/priority/$1",
        "^@backend/sync/(.*)$": "<rootDir>/packages/backend/src/sync/$1",
        "^@backend/user/(.*)$": "<rootDir>/packages/backend/src/user/$1",
      },

      setupFiles: [
        "<rootDir>/packages/backend/src/__tests__/backend.test.init.js",
      ],
      testEnvironment: "node",
      testMatch: ["<rootDir>/packages/backend/**/?(*.)+(spec|test).[tj]s?(x)"],
    },
  ],
  // Use this configuration option to add custom reporters to Jest
  // reporters: undefined,

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

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

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

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

  // The root directory that Jest should scan for tests and modules within
  // rootDir: 'packages/web/',
  // rootDir: 'packages/backend/',
  rootDir: "./",

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

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

  // 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: [],

  // The number of seconds after which a test is considered as slow and reported as such in the results.
  // slowTestThreshold: 5,

  // 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: "jsdom",
  // 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: [],

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

  // This option allows use of a custom test runner
  // testRunner: "jest-circus/runner",

  // 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: undefined,

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

  // 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: undefined,

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

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