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I wan jest to do unit tests with jest and typescrip/react but my test fails because says there are syntax errors in my imports. This is my jest.cinfig.ts file and babelrc file
{
  "env": {
    "test": {
      "presets": [
        [
          "@babel/preset-env",
          {
            "corejs": { "version": 3, "proposals": true },
            "useBuiltIns": false,
            "targets": {
              "node": "current"
            }
          }
        ],
        [
          "@babel/preset-react",
          {
            "runtime": "automatic"
          }
        ],
        "@babel/preset-typescript"
      ],
      "plugins": [
        "@babel/plugin-transform-runtime",
        ["@babel/proposal-class-properties", {}, "babel-proposal-class-properties"],
        "@babel/plugin-transform-classes"
      ]
    }
  }
}





<pre>import type {Config} from 'jest';

const config: Config = {
  // 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/tb/hgrm9j912hl9ss6jlf7n_g500000gp/T/jest_dy",

  // Automatically clear mock calls, instances, contexts and results before every test
  clearMocks: true,

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

  // An array of glob patterns indicating a set of files for which coverage information should be collected
  collectCoverageFrom: [
    '**/src/services/**/*.{ts,tsx}',
    '**/src/components/**/*.ts',
    '**/src/contexts/**/*.ts',
    '**/src/hooks/**/*.ts',
    '**/src/utils/**/*.ts',
    '!**/src/components/**/messages.ts',
    '!**/__snapshots__/*.snap',
    '!**/__mocks__/**/*',
    '!**/__fixtures__/**/*',
    '!**/mocks/**/*',
    '!**/mock.js',
    '!**/mocks.js',
  ],

  // 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/'],

  // 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,

  // The default configuration for fake timers
  // fakeTimers: {
  //   "enableGlobally": 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",
    "mjs",
    "cjs",
   "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
  // 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: undefined,

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

  // Use this configuration option to add custom reporters to Jest
  // reporters: undefined,

  // Automatically reset mock state before 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 and implementation before every test
  // restoreMocks: false,

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

  // 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',

  // 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",

  // A map from regular expressions to paths to transformers
  transform: {
    '^.+\\.[t|j]sx?$': 'babel-jest',
    '^.+\\.(ts?)$': 'ts-jest',
    '.+\\.(css|styl|less|sass|scss)$':
        '<rootDir>/node_modules/jest-css-modules-transform',
  },

  // An array of regexp pattern strings that are matched against all source file paths, matched files will skip transformation
  // transformIgnorePatterns: [
   // "/node_modules/",
   // [/.pnp/.%5b%5e/%5d+$]\\.pnp\\.[^\\/]+$
  // ],

  // 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: [],

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

export default config




What I have tried:

I trued deleten cache and adding the ignore pattern in ts config file
Posted

1 solution

To import the Jest configuration, you need to use
TypeScript
import type { Config } from "@jest/types";
Jest features sit under @jest, not jest.
 
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