facebook/jest
### [`v24.9.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2490)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.8.0...v24.9.0)
##### Features
- `[expect]` Highlight substring differences when matcher fails, part 1 ([#8448](https://togithub.com/facebook/jest/pull/8448))
- `[expect]` Highlight substring differences when matcher fails, part 2 ([#8528](https://togithub.com/facebook/jest/pull/8528))
- `[expect]` Improve report when mock-spy matcher fails, part 1 ([#8640](https://togithub.com/facebook/jest/pull/8640))
- `[expect]` Improve report when mock-spy matcher fails, part 2 ([#8649](https://togithub.com/facebook/jest/pull/8649))
- `[expect]` Improve report when mock-spy matcher fails, part 3 ([#8697](https://togithub.com/facebook/jest/pull/8697))
- `[expect]` Improve report when mock-spy matcher fails, part 4 ([#8710](https://togithub.com/facebook/jest/pull/8710))
- `[expect]` Throw matcher error when received cannot be jasmine spy ([#8747](https://togithub.com/facebook/jest/pull/8747))
- `[expect]` Improve report when negative CalledWith assertion fails ([#8755](https://togithub.com/facebook/jest/pull/8755))
- `[expect]` Improve report when positive CalledWith assertion fails ([#8771](https://togithub.com/facebook/jest/pull/8771))
- `[expect]` Display equal values for ReturnedWith similar to CalledWith ([#8791](https://togithub.com/facebook/jest/pull/8791))
- `[expect, jest-snapshot]` Change color from green for some args in matcher hints ([#8812](https://togithub.com/facebook/jest/pull/8812))
- `[jest-snapshot]` Highlight substring differences when matcher fails, part 3 ([#8569](https://togithub.com/facebook/jest/pull/8569))
- `[jest-core]` Improve report when snapshots are obsolete ([#8448](https://togithub.com/facebook/jest/pull/8665))
- `[jest-cli]` Improve chai support (with detailed output, to match jest exceptions) ([#8454](https://togithub.com/facebook/jest/pull/8454))
- `[*]` Manage the global timeout with `--testTimeout` command line argument. ([#8456](https://togithub.com/facebook/jest/pull/8456))
- `[pretty-format]` Render custom displayName of memoized components ([#8546](https://togithub.com/facebook/jest/pull/8546))
- `[jest-validate]` Allow `maxWorkers` as part of the `jest.config.js` ([#8565](https://togithub.com/facebook/jest/pull/8565))
- `[jest-runtime]` Allow passing configuration objects to transformers ([#7288](https://togithub.com/facebook/jest/pull/7288))
- `[@jest/core, @jest/test-sequencer]` Support async sort in custom `testSequencer` ([#8642](https://togithub.com/facebook/jest/pull/8642))
- `[jest-runtime, @jest/fake-timers]` Add `jest.advanceTimersToNextTimer` ([#8713](https://togithub.com/facebook/jest/pull/8713))
- `[@jest-transform]` Extract transforming require logic within `jest-core` into `@jest-transform` ([#8756](https://togithub.com/facebook/jest/pull/8756))
- `[jest-matcher-utils]` Add color options to `matcherHint` ([#8795](https://togithub.com/facebook/jest/pull/8795))
- `[jest-circus/jest-jasmine2]` Give clearer output for Node assert errors ([#8792](https://togithub.com/facebook/jest/pull/8792))
- `[jest-runner]` Export all types in the type signature of `jest-runner` ([#8825](https://togithub.com/facebook/jest/pull/8825))
##### Fixes
- `[jest-cli]` Detect side-effect only imports when running `--onlyChanged` or `--changedSince` ([#8670](https://togithub.com/facebook/jest/pull/8670))
- `[jest-cli]` Allow `--maxWorkers` to work with % input again ([#8565](https://togithub.com/facebook/jest/pull/8565))
- `[babel-plugin-jest-hoist]` Expand list of whitelisted globals in global mocks ([#8429](https://togithub.com/facebook/jest/pull/8429))
- `[jest-core]` Make watch plugin initialization errors look nice ([#8422](https://togithub.com/facebook/jest/pull/8422))
- `[jest-snapshot]` Prevent inline snapshots from drifting when inline snapshots are updated ([#8492](https://togithub.com/facebook/jest/pull/8492))
- `[jest-haste-map]` Don't throw on missing mapper in Node crawler ([#8558](https://togithub.com/facebook/jest/pull/8558))
- `[jest-core]` Fix incorrect `passWithNoTests` warning ([#8595](https://togithub.com/facebook/jest/pull/8595))
- `[jest-snapshots]` Fix test retries that contain snapshots ([#8629](https://togithub.com/facebook/jest/pull/8629))
- `[jest-mock]` Fix incorrect assignments when restoring mocks in instances where they originally didn't exist ([#8631](https://togithub.com/facebook/jest/pull/8631))
- `[expect]` Fix stack overflow when matching objects with circular references ([#8687](https://togithub.com/facebook/jest/pull/8687))
- `[jest-haste-map]` Workaround a node >=12.5.0 bug that causes the process not to exit after tests have completed and cancerous memory growth ([#8787](https://togithub.com/facebook/jest/pull/8787))
##### Chore & Maintenance
- `[jest-leak-detector]` remove code repeat ([#8438](https://togithub.com/facebook/jest/pull/8438))
- `[docs]` Add example to `jest.requireActual` ([#8482](https://togithub.com/facebook/jest/pull/8482))
- `[docs]` Add example to `jest.mock` for mocking ES6 modules with the `factory` parameter ([#8550](https://togithub.com/facebook/jest/pull/8550))
- `[docs]` Add information about using `jest.doMock` with ES6 imports ([#8573](https://togithub.com/facebook/jest/pull/8573))
- `[docs]` Fix variable name in custom-matcher-api code example ([#8582](https://togithub.com/facebook/jest/pull/8582))
- `[docs]` Fix example used in custom environment docs ([#8617](https://togithub.com/facebook/jest/pull/8617))
- `[docs]` Updated react tutorial to refer to new package of react-testing-library ([@testing-library/react](https://togithub.com/testing-library/react)) ([#8753](https://togithub.com/facebook/jest/pull/8753))
- `[docs]` Updated imports of react-testing-library to [@testing-library/react](https://togithub.com/testing-library/react) in website ([#8757](https://togithub.com/facebook/jest/pull/8757))
- `[jest-core]` Add `getVersion` (moved from `jest-cli`) ([#8706](https://togithub.com/facebook/jest/pull/8706))
- `[docs]` Fix MockFunctions example that was using toContain instead of toContainEqual ([#8765](https://togithub.com/facebook/jest/pull/8765))
- `[*]` Make sure copyright header comment includes license ([#8783](https://togithub.com/facebook/jest/pull/8783))
- `[*]` Check copyright and license as one joined substring ([#8815](https://togithub.com/facebook/jest/pull/8815))
- `[docs]` Fix WatchPlugins `jestHooks.shouldRunTestSuite` example that receives an object ([#8784](https://togithub.com/facebook/jest/pull/8784))
- `[*]` Enforce LF line endings ([#8809](https://togithub.com/facebook/jest/pull/8809))
- `[pretty-format]` Delete obsolete link and simplify structure in README ([#8824](https://togithub.com/facebook/jest/pull/8824))
##### Performance
- `[jest-watcher]` Minor optimization for JestHook ([#8746](https://togithub.com/facebook/jest/pull/8746))
- `[@jest/reporters]` Prevent runaway CPU useage with `--notify` on macOS ([#8830](https://togithub.com/facebook/jest/issues/8830))
### [`v24.8.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2480)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.7.1...v24.8.0)
##### Features
- `[jest-circus]` Bind to Circus events via an optional event handler on any custom env ([#8344](https://togithub.com/facebook/jest/pull/8344))
- `[expect]` Improve report when matcher fails, part 15 ([#8281](https://togithub.com/facebook/jest/pull/8281))
- `[jest-cli]` Update `--forceExit` and "did not exit for one second" message colors ([#8329](https://togithub.com/facebook/jest/pull/8329))
- `[expect]` Improve report when matcher fails, part 16 ([#8306](https://togithub.com/facebook/jest/pull/8306))
- `[jest-runner]` Pass docblock pragmas to TestEnvironment constructor ([#8320](https://togithub.com/facebook/jest/pull/8320))
- `[docs]` Add DynamoDB guide ([#8319](https://togithub.com/facebook/jest/pull/8319))
- `[expect]` Improve report when matcher fails, part 17 ([#8349](https://togithub.com/facebook/jest/pull/8349))
- `[expect]` Improve report when matcher fails, part 18 ([#8356](https://togithub.com/facebook/jest/pull/8356))
- `[expect]` Improve report when matcher fails, part 19 ([#8367](https://togithub.com/facebook/jest/pull/8367))
##### Fixes
- `[jest-each]` Fix bug with placeholder values ([#8289](https://togithub.com/facebook/jest/pull/8289))
- `[jest-snapshot]` Inline snapshots: do not indent empty lines ([#8277](https://togithub.com/facebook/jest/pull/8277))
- `[@jest/runtime, @jest/transform]` Allow custom transforms for JSON dependencies ([#2578](https://togithub.com/facebook/jest/pull/2578))
- `[jest-core]` Make `detectOpenHandles` imply `runInBand` ([#8283](https://togithub.com/facebook/jest/pull/8283))
- `[jest-haste-map]` Fix the `mapper` option which was incorrectly ignored ([#8299](https://togithub.com/facebook/jest/pull/8299))
- `[jest-jasmine2]` Fix describe return value warning being shown if the describe function throws ([#8335](https://togithub.com/facebook/jest/pull/8335))
- `[jest-environment-jsdom]` Re-declare global prototype of JSDOMEnvironment ([#8352](https://togithub.com/facebook/jest/pull/8352))
- `[jest-snapshot]` Handle arrays when merging snapshots ([#7089](https://togithub.com/facebook/jest/pull/7089))
- `[expect]` Extract names of async and generator functions ([#8362](https://togithub.com/facebook/jest/pull/8362))
- `[jest-runtime]` Fix virtual mocks not being unmockable after previously being mocked ([#8396](https://togithub.com/facebook/jest/pull/8396))
- `[jest-transform]` Replace special characters in transform cache filenames to support Windows ([#8353](https://togithub.com/facebook/jest/pull/8353))
- `[jest-config]` Allow exactly one project ([#7498](https://togithub.com/facebook/jest/pull/7498))
##### Chore & Maintenance
- `[expect]` Fix label and add opposite assertion for toEqual tests ([#8288](https://togithub.com/facebook/jest/pull/8288))
- `[docs]` Mention Jest MongoDB Preset ([#8318](https://togithub.com/facebook/jest/pull/8318))
- `[@jest/reporters]` Migrate away from `istanbul-api` ([#8294](https://togithub.com/facebook/jest/pull/8294))
- `[*]` Delete obsolete emails tag from header comment in test files ([#8377](https://togithub.com/facebook/jest/pull/8377))
- `[expect]` optimize compare nodes ([#8368](https://togithub.com/facebook/jest/pull/8368))
- `[docs]` Fix typo in MockFunctionAPI.md ([#8406](https://togithub.com/facebook/jest/pull/8406))
- `[LICENSE]` Follow copyright header guidelines and delete For Jest software ([#8428](https://togithub.com/facebook/jest/pull/8428))
##### Performance
- `[jest-runtime]` Fix module registry memory leak ([#8282](https://togithub.com/facebook/jest/pull/8282))
- `[jest-resolve]` optimize resolve module path ([#8388](https://togithub.com/facebook/jest/pull/8388))
- `[jest-resolve]` cache current directory ([#8412](https://togithub.com/facebook/jest/pull/8412))
- `[jest-get-type]` Simplify checking for primitive ([#8416](https://togithub.com/facebook/jest/pull/8416))
### [`v24.7.1`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2471)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.7.0...v24.7.1)
##### Fixes
- `[@jest/config]` Normalize `testSequencer` to its absolute path ([#8267](https://togithub.com/facebook/jest/pull/8267))
- `[@jest/console]` Print to stderr when calling `console.error`, `console.warn` or `console.assert` using the `jest-runtime` CLI ([#8261](https://togithub.com/facebook/jest/pull/8261))
### [`v24.7.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2470)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.6.0...v24.7.0)
##### Features
- `[@jest/core, @jest/test-sequencer]` Move `testSequencer` to individual package `@jest/test-sequencer` ([#8223](https://togithub.com/facebook/jest/pull/8223))
- `[@jest/core, jest-cli, jest-config]` Add option `testSequencer` allow user use custom sequencer. ([#8223](https://togithub.com/facebook/jest/pull/8223))
##### Fixes
- `[expect]` Add negative equality tests for iterables ([#8260](https://togithub.com/facebook/jest/pull/8260))
- `[jest-haste-map]` Resolve fs watcher EMFILE error ([#8258](https://togithub.com/facebook/jest/pull/8258))
##### Chore & Maintenance
- `[expect]` Remove repetition of matcherName and options in matchers ([#8224](https://togithub.com/facebook/jest/pull/8224))
##### Performance
### [`v24.6.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2460)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.5.0...v24.6.0)
##### Features
- `[expect]`: Improve report when matcher fails, part 13 ([#8077](https://togithub.com/facebook/jest/pull/8077))
- `[@jest/core]` Filter API pre-filter setup hook ([#8142](https://togithub.com/facebook/jest/pull/8142))
- `[jest-snapshot]` Improve report when matcher fails, part 14 ([#8132](https://togithub.com/facebook/jest/pull/8132))
- `[@jest/reporter]` Display todo and skip test descriptions when verbose is true ([#8038](https://togithub.com/facebook/jest/pull/8038))
- `[jest-runner]` Support default exports for test environments ([#8163](https://togithub.com/facebook/jest/pull/8163))
- `[pretty-format]` Support React.Suspense ([#8180](https://togithub.com/facebook/jest/pull/8180))
- `[jest-snapshot]` Indent inline snapshots ([#8198](https://togithub.com/facebook/jest/pull/8198))
- `[jest-config]` Support colors in `displayName` configuration ([#8025](https://togithub.com/facebook/jest/pull/8025))
##### Fixes
- `[jest-circus]` Fix test retries with beforeAll/beforeEach failures ([#8227](https://togithub.com/facebook/jest/pull/8227))
- `[expect]` Fix circular references in iterable equality ([#8160](https://togithub.com/facebook/jest/pull/8160))
- `[jest-changed-files]` Change method of obtaining git root ([#8052](https://togithub.com/facebook/jest/pull/8052))
- `[jest-each]` Fix test function type ([#8145](https://togithub.com/facebook/jest/pull/8145))
- `[jest-fake-timers]` `getTimerCount` not taking immediates and ticks into account ([#8139](https://togithub.com/facebook/jest/pull/8139))
- `[jest-runtime]` Allow json file as manual mock ([#8159](https://togithub.com/facebook/jest/pull/8159))
- `[pretty-format]` Print `BigInt` as a readable number instead of `{}` ([#8138](https://togithub.com/facebook/jest/pull/8138))
- `[jest-core]` Fix ability to transform dependencies required from globalSetup script ([#8143](https://togithub.com/facebook/jest/pull/8143))
- `[@jest/reporters]` Fix Cannot read property converageData of null ([#8168](https://togithub.com/facebook/jest/pull/8168))
- `[jest-worker]` `JEST_WORKER_ID` starts at 1 ([#8205](https://togithub.com/facebook/jest/pull/8205))
- `[jest-config]` Use default cwd even if config contains a cwd property ([#7923](https://togithub.com/facebook/jest/pull/7923))
- `[jest-resolve-dependencies]`: Remove internal peer dependencies ([#8215](https://togithub.com/facebook/jest/pull/8215))
- `[jest-resolve]`: Remove internal peer dependencies ([#8215](https://togithub.com/facebook/jest/pull/8215))
- `[jest-snapshot]`: Remove internal peer dependencies ([#8215](https://togithub.com/facebook/jest/pull/8215))
- `[jest-resolve]` Fix requireActual with moduleNameMapper ([#8210](https://togithub.com/facebook/jest/pull/8210))
- `[jest-haste-map]` Fix haste map duplicate detection in watch mode ([#8237](https://togithub.com/facebook/jest/pull/8237))
##### Chore & Maintenance
- `[*]` Remove flow from code base ([#8061](https://togithub.com/facebook/jest/pull/8061))
- `[*]` Use property initializer syntax in Jest codebase ([#8117](https://togithub.com/facebook/jest/pull/8117))
- `[*]` Move [@types/node](https://togithub.com/types/node) to the root package.json ([#8129](https://togithub.com/facebook/jest/pull/8129))
- `[*]` Add documentation and tests related to auto-mocking ([#8099](https://togithub.com/facebook/jest/pull/8099))
- `[*]` Add `jest-watch-typeahead` as a devDependency ([#6449](https://togithub.com/facebook/jest/pull/6449))
- `[*]` upgrade TS to 3.4.0-dev\* for inceremental builds ([#8149](https://togithub.com/facebook/jest/pull/8149))
- `[docs]` Improve description of optional arguments in ExpectAPI.md ([#8126](https://togithub.com/facebook/jest/pull/8126))
##### Performance
- `[jest-haste-map]` Optimize haste map data structure for serialization/deserialization ([#8171](https://togithub.com/facebook/jest/pull/8171))
- `[jest-haste-map]` Avoid persisting haste map or processing files when not changed ([#8153](https://togithub.com/facebook/jest/pull/8153))
- `[jest-core]` Improve performance of SearchSource.findMatchingTests by 15% ([#8184](https://togithub.com/facebook/jest/pull/8184))
- `[jest-resolve]` Optimize internal cache lookup performance ([#8183](https://togithub.com/facebook/jest/pull/8183))
- `[jest-core]` Dramatically improve watch mode performance ([#8201](https://togithub.com/facebook/jest/pull/8201))
- `[jest-transform]` Cache regular expression instead of creating anew for every file in ScriptTransformer ([#8235](https://togithub.com/facebook/jest/pull/8235))
- `[jest-core]` Fix memory leak of source map info and minor performance improvements ([#8234](https://togithub.com/facebook/jest/pull/8234))
- `[jest-console]` Fix memory leak by releasing console output reference when printed to stdout ([#8233](https://togithub.com/facebook/jest/pull/8233))
- `[jest-runtime]` Use `Map` instead of `Object` for module registry ([#8232](https://togithub.com/facebook/jest/pull/8232))
### [`v24.5.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2450)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.4.0...v24.5.0)
##### Features
- `[jest-haste-map]` Expose `throwOnModuleCollision` via `config.haste` ([#8113](https://togithub.com/facebook/jest/pull/8113))
##### Chore & Maintenance
- `[expect]` Export `Matchers` interface from `expect` ([#8093](https://togithub.com/facebook/jest/pull/8093))
### [`v24.4.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2440)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.3.1...v24.4.0)
##### Features
- `[jest-resolve]` Now supports PnP environment without plugins ([#8094](https://togithub.com/facebook/jest/pull/8094))
##### Fixes
- `[expect]` Compare DOM nodes even if there are multiple Node classes ([#8064](https://togithub.com/facebook/jest/pull/8064))
- `[jest-worker]` `worker.getStdout()` can return `null` ([#8083](https://togithub.com/facebook/jest/pull/8083))
- `[jest-worker]` Re-attach stdout and stderr from new processes/threads created after retries ([#8087](https://togithub.com/facebook/jest/pull/8087))
- `[jest-reporters/jest-runner]` Serialize `changedFiles` passed to workers ([#8090](https://togithub.com/facebook/jest/pull/8090))
##### Chore & Maintenance
- `[*]` Make sure to include `d.ts` files in the tarball when building ([#8086](https://togithub.com/facebook/jest/pull/8086))
### [`v24.3.1`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2431)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.3.0...v24.3.1)
##### Fixes
- `[jest-cli]` export functions compatible with `import {default}` ([#8080](https://togithub.com/facebook/jest/pull/8080))
- `[jest-worker]`: Fix retries and error notification in workers ([#8079](https://togithub.com/facebook/jest/pull/8079))
##### Chore & Maintenance
- `[pretty-format]`: Use `react-is` instead of manual `$typeof` checks ([#8060](https://togithub.com/facebook/jest/pull/8060))
### [`v24.3.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2430)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.1.0...v24.3.0)
We skipped 24.2.0 because a draft was accidentally published. Please use `24.3.0` or a newer version instead.
##### Features
- `[expect]`: Improve report when matcher fails, part 10 ([#7960](https://togithub.com/facebook/jest/pull/7960))
- `[expect]`: Improve report when matcher fails, part 11 ([#8008](https://togithub.com/facebook/jest/pull/8008))
- `[expect]`: Improve report when matcher fails, part 12 ([#8033](https://togithub.com/facebook/jest/pull/8033))
- `[expect]`: Improve report when matcher fails, part 7 ([#7866](https://togithub.com/facebook/jest/pull/7866))
- `[expect]`: Improve report when matcher fails, part 8 ([#7876](https://togithub.com/facebook/jest/pull/7876))
- `[expect]`: Improve report when matcher fails, part 9 ([#7940](https://togithub.com/facebook/jest/pull/7940))
- `[jest-circus/jest-jasmine2]` Warn if describe returns a value ([#7852](https://togithub.com/facebook/jest/pull/7852))
- `[jest-config]` Print error information on preset normalization error ([#7935](https://togithub.com/facebook/jest/pull/7935))
- `[jest-get-type]` Add `isPrimitive` function ([#7708](https://togithub.com/facebook/jest/pull/7708))
- `[jest-haste-map]` Add `skipPackageJson` option ([#7778](https://togithub.com/facebook/jest/pull/7778))
- `[jest-util]` Add `isPromise` ([#7852](https://togithub.com/facebook/jest/pull/7852))
- `[pretty-format]` Support `React.memo` ([#7891](https://togithub.com/facebook/jest/pull/7891))
##### Fixes
- `[expect]` Fix `toStrictEqual` not considering arrays with objects having undefined values correctly ([#7938](https://togithub.com/facebook/jest/pull/7938))
- `[expect]` Fix custom async matcher stack trace ([#7652](https://togithub.com/facebook/jest/pull/7652))
- `[expect]` Fix non-object received value in toHaveProperty ([#7986](https://togithub.com/facebook/jest/pull/7986), [#8067](https://togithub.com/facebook/jest/pull/8067))
- `[expect]` Fix non-symmetric equal for Number ([#7948](https://togithub.com/facebook/jest/pull/7948))
- `[expect]` Remove duck typing and obsolete browser support code when comparing DOM nodes and use DOM-Level-3 API instead ([#7995](https://togithub.com/facebook/jest/pull/7995))
- `[jest-changed-files]` Fix `getChangedFilesFromRoots` to not return parts of the commit messages as if they were files, when the commit messages contained multiple paragraphs ([#7961](https://togithub.com/facebook/jest/pull/7961))
- `[jest-changed-files]` Fix pattern for HG changed files ([#8066](https://togithub.com/facebook/jest/pull/8066))
- `[jest-changed-files]` Improve default file selection for Mercurial repos ([#7880](https://togithub.com/facebook/jest/pull/7880))
- `[jest-circus]` Fix bug with test.only ([#7888](https://togithub.com/facebook/jest/pull/7888))
- `[jest-circus]`: Throw explicit error when errors happen after test is considered complete ([#8005](https://togithub.com/facebook/jest/pull/8005))
- `[jest-cli]` Fix prototype pollution vulnerability in dependency ([#7904](https://togithub.com/facebook/jest/pull/7904))
- `[jest-cli]` Refactor `-o` and `--coverage` combined ([#7611](https://togithub.com/facebook/jest/pull/7611))
- `[jest-environment-node]` Add missing globals: TextEncoder and TextDecoder ([#8022](https://togithub.com/facebook/jest/pull/8022))
- `[jest-haste-map]` Enforce uniqueness in names (mocks and haste ids) ([#8002](https://togithub.com/facebook/jest/pull/8002))
- `[jest-jasmine2]`: Throw explicit error when errors happen after test is considered complete ([#8005](https://togithub.com/facebook/jest/pull/8005))
- `[jest-mock]` Adds a type check to `prototype` to allow mocks of objects with a primitive `prototype` property. ([#8040](https://togithub.com/facebook/jest/pull/8040))
- `[jest-transform]` Normalize config and remove unnecessary checks, convert `TestUtils.js` to TypeScript ([#7801](https://togithub.com/facebook/jest/pull/7801))
- `[jest-util]`Make sure to not fail if unable to assign `toStringTag` to the `process` object, which is read only in Node 12 ([#8050](https://togithub.com/facebook/jest/pull/8050))
- `[jest-validate]` Fix validating async functions ([#7894](https://togithub.com/facebook/jest/issues/7894))
- `[jest-worker]` Fix `jest-worker` when using pre-allocated jobs ([#7934](https://togithub.com/facebook/jest/pull/7934))
- `[static]` Remove console log '-' on the front page ([#7977](https://togithub.com/facebook/jest/pull/7977))
##### Chore & Maintenance
- `[*]`: Setup building, linting and testing of TypeScript ([#7808](https://togithub.com/facebook/jest/pull/7808), [#7855](https://togithub.com/facebook/jest/pull/7855), [#7951](https://togithub.com/facebook/jest/pull/7951))
- `[@jest/console]`: Extract custom `console` implementations from `jest-util` into a new separate package ([#8030](https://togithub.com/facebook/jest/pull/8030))
- `[@jest/core]` Create new package, which is `jest-cli` minus `yargs` and `prompts` ([#7696](https://togithub.com/facebook/jest/pull/7696))
- `[@jest/core]`: Migrate to TypeScript ([#7998](https://togithub.com/facebook/jest/pull/7998))
- `[@jest/fake-timers]`: Extract FakeTimers class from `jest-util` into a new separate package ([#7987](https://togithub.com/facebook/jest/pull/7987))
- `[@jest/reporter]`: New package extracted from `jest-cli` ([#7902](https://togithub.com/facebook/jest/pull/7902))
- `[@jest/reporters]`: Migrate to TypeScript ([#7994](https://togithub.com/facebook/jest/pull/7994), [#8045](https://togithub.com/facebook/jest/pull/8045))
- `[@jest/source-map]`: Extract `getCallsite` function from `jest-util` into a new separate package ([#8029](https://togithub.com/facebook/jest/pull/8029))
- `[@jest/test-result]`: Extract TestResult types and helpers into a new separate package ([#8034](https://togithub.com/facebook/jest/pull/8034))
- `[@jest/transform]`: Migrate to TypeScript ([#7918](https://togithub.com/facebook/jest/pull/7918), [#7945](https://togithub.com/facebook/jest/pull/7945))
- `[@jest/transform]`: New package extracted from `jest-runtime` ([#7915](https://togithub.com/facebook/jest/pull/7915))
- `[@jest/types]`: New package to handle shared types ([#7834](https://togithub.com/facebook/jest/pull/7834))
- `[babel-jest]`: Migrate to TypeScript ([#7862](https://togithub.com/facebook/jest/pull/7862))
- `[babel-plugin-jest-hoist]`: Migrate to TypeScript ([#7898](https://togithub.com/facebook/jest/pull/7898))
- `[diff-sequences]`: Migrate to Typescript ([#7820](https://togithub.com/facebook/jest/pull/7820))
- `[docs]` Add missing import to docs ([#7928](https://togithub.com/facebook/jest/pull/7928))
- `[docs]` Update automock configuration, add note related to manual mocks ([#8051](https://togithub.com/facebook/jest/pull/8051))
- `[docs]` Update/Organize TestSequencer and testSchedulerHelper code comments([#7984](https://togithub.com/facebook/jest/pull/7984))
- `[docs]`: Fix image paths in SnapshotTesting.md for current and version 24 ([#7872](https://togithub.com/facebook/jest/pull/7872))
- `[docs]`: Improve runAllTimers doc (it exhausts the micro-task queue) ([#8031](https://togithub.com/facebook/jest/pull/8031))
- `[docs]`: Update CONTRIBUTING.md to add information about running jest with `jest-circus` locally ([#8013](https://togithub.com/facebook/jest/pull/8013)).
- `[expect]`: Migrate to TypeScript ([#7919](https://togithub.com/facebook/jest/pull/7919), [#8028](https://togithub.com/facebook/jest/pull/8028))
- `[jest-changed-files]`: Migrate to TypeScript ([#7827](https://togithub.com/facebook/jest/pull/7827))
- `[jest-circus]`: Migrate to TypeScript ([#7916](https://togithub.com/facebook/jest/pull/7916))
- `[jest-cli]`: Migrate to TypeScript ([#8024](https://togithub.com/facebook/jest/pull/8024))
- `[jest-diff]`: Migrate to TypeScript ([#7824](https://togithub.com/facebook/jest/pull/7824), [#8027](https://togithub.com/facebook/jest/pull/8027))
- `[jest-docblock]`: Migrate to TypeScript ([#7836](https://togithub.com/facebook/jest/pull/7836))
- `[jest-each]`: Migrate to Typescript ([#8007](https://togithub.com/facebook/jest/pull/8007))
- `[jest-each]`: Refactor into multiple files with better types ([#8018](https://togithub.com/facebook/jest/pull/8018))
- `[jest-environment-jsdom]`: Migrate to TypeScript ([#7985](https://togithub.com/facebook/jest/pull/8003))
- `[jest-environment-node]`: Migrate to TypeScript ([#7985](https://togithub.com/facebook/jest/pull/7985))
- `[jest-get-type]`: Migrate to TypeScript ([#7818](https://togithub.com/facebook/jest/pull/7818))
- `[jest-haste-map]`: Migrate to TypeScript ([#7854](https://togithub.com/facebook/jest/pull/7854), [#7951](https://togithub.com/facebook/jest/pull/7951))
- `[jest-jasmine2]`: TS migration ([#7970](https://togithub.com/facebook/jest/pull/7970))
- `[jest-leak-detector]`: Migrate to TypeScript ([#7825](https://togithub.com/facebook/jest/pull/7825))
- `[jest-matcher-utils]`: Migrate to TypeScript ([#7835](https://togithub.com/facebook/jest/pull/7835))
- `[jest-message-util]`: Migrate to TypeScript ([#7834](https://togithub.com/facebook/jest/pull/7834))
- `[jest-mock]`: Migrate to TypeScript ([#7847](https://togithub.com/facebook/jest/pull/7847), [#7850](https://togithub.com/facebook/jest/pull/7850), [#7971](https://togithub.com/facebook/jest/pull/7971))
- `[jest-phabricator]`: Migrate to TypeScript ([#7965](https://togithub.com/facebook/jest/pull/7965))
- `[jest-regex-util]`: Migrate to TypeScript ([#7822](https://togithub.com/facebook/jest/pull/7822))
- `[jest-repl]`: Migrate to TypeScript ([#8000](https://togithub.com/facebook/jest/pull/8000))
- `[jest-resolve-dependencies]`: Migrate to TypeScript ([#7922](https://togithub.com/facebook/jest/pull/7922))
- `[jest-resolve]`: Migrate to TypeScript ([#7871](https://togithub.com/facebook/jest/pull/7871))
- `[jest-runner]`: Migrate to TypeScript ([#7968](https://togithub.com/facebook/jest/pull/7968))
- `[jest-runtime]`: Migrate to TypeScript ([#7964](https://togithub.com/facebook/jest/pull/7964), [#7988](https://togithub.com/facebook/jest/pull/7988))
- `[jest-serializer]`: Migrate to TypeScript ([#7841](https://togithub.com/facebook/jest/pull/7841))
- `[jest-snapshot]`: Migrate to TypeScript ([#7899](https://togithub.com/facebook/jest/pull/7899))
- `[jest-util]`: Migrate to TypeScript ([#7844](https://togithub.com/facebook/jest/pull/7844), [#8021](https://togithub.com/facebook/jest/pull/8021))
- `[jest-validate]`: Migrate to TypeScript ([#7991](https://togithub.com/facebook/jest/pull/7991))
- `[jest-watcher]`: Migrate to TypeScript ([#7843](https://togithub.com/facebook/jest/pull/7843))
- `[jest-worker]`: Migrate to TypeScript ([#7853](https://togithub.com/facebook/jest/pull/7853))
- `[jest]`: Migrate to TypeScript ([#8024](https://togithub.com/facebook/jest/pull/8024))
- `[pretty-format]`: Migrate to TypeScript ([#7809](https://togithub.com/facebook/jest/pull/7809), [#7809](https://togithub.com/facebook/jest/pull/7972))
##### Performance
- `[jest-haste-map]` Optimize haste map tracking of deleted files with Watchman. ([#8056](https://togithub.com/facebook/jest/pull/8056))
### [`v24.1.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2410)
[Compare Source](https://togithub.com/facebook/jest/compare/v24.0.0...v24.1.0)
##### Features
- `[jest-resolve]`: Pass default resolver into custom resolvers ([#7714](https://togithub.com/facebook/jest/pull/7714))
- `[jest-cli]`: `global{Setup,Teardown}` use default export with es modules ([#7750](https://togithub.com/facebook/jest/pull/7750))
- `[jest-runtime]` Better error messages when the jest environment is used after teardown by async code ([#7756](https://togithub.com/facebook/jest/pull/7756))
- `[jest-jasmine2]` Will now only execute at most 5 concurrent tests _within the same testsuite_ when using `test.concurrent` ([#7770](https://togithub.com/facebook/jest/pull/7770))
- `[jest-circus]` Same as `[jest-jasmine2]`, only 5 tests will run concurrently by default ([#7770](https://togithub.com/facebook/jest/pull/7770))
- `[jest-config]` A new `maxConcurrency` option allows to change the number of tests allowed to run concurrently ([#7770](https://togithub.com/facebook/jest/pull/7770))
##### Fixes
- `[jest-runtime]` Fix for mocks not working with module name mapper ([#7787](https://togithub.com/facebook/jest/pull/7787))
- `[jest-cli]` Break dependency cycle when using Jest programmatically ([#7707](https://togithub.com/facebook/jest/pull/7707))
- `[jest-config]` Extract setupFilesAfterEnv from preset ([#7724](https://togithub.com/facebook/jest/pull/7724))
- `[jest-cli]` Do not execute any `globalSetup` or `globalTeardown` if there are no tests to execute ([#7745](https://togithub.com/facebook/jest/pull/7745))
- `[jest-runtime]` Lock down version of `write-file-atomic` ([#7725](https://togithub.com/facebook/jest/pull/7725))
- `[jest-cli]` Print log entries when logging happens after test environment is torn down ([#7731](https://togithub.com/facebook/jest/pull/7731))
- `[jest-config]` Do not use a uuid as `name` since that breaks caching ([#7746](https://togithub.com/facebook/jest/pull/7746))
- `[jest-config]` Make sure `normalize` can consume `Defaults` without warnings ([#7742](https://togithub.com/facebook/jest/pull/7742))
- `[jest-config]` Allow `moduleFileExtensions` without 'js' for custom runners ([#7751](https://togithub.com/facebook/jest/pull/7751))
- `[jest-cli]` Load transformers before installing require hooks ([#7752](https://togithub.com/facebook/jest/pull/7752))
- `[jest-cli]` Handle missing `numTodoTests` in test results ([#7779](https://togithub.com/facebook/jest/pull/7779))
- `[jest-runtime]` Exclude setup/teardown files from coverage report ([#7790](https://togithub.com/facebook/jest/pull/7790))
- `[babel-jest]` Throw an error if `babel-jest` tries to transform a file ignored by Babel ([#7797](https://togithub.com/facebook/jest/pull/7797))
- `[babel-plugin-jest-hoist]` Ignore TS type references when looking for out-of-scope references ([#7799](https://togithub.com/facebook/jest/pull/7799))
- `[expect]` fixed asymmetrical equality of cyclic objects ([#7730](https://togithub.com/facebook/jest/pull/7730))
##### Chore & Maintenance
- `[jest]` Update jest-junit to ^6.2.1 ([#7739](https://togithub.com/facebook/jest/pull/7739))
- `[website]` Fix broken help link on homepage ([#7706](https://togithub.com/facebook/jest/pull/7706))
- `[docs]` Changed Babel setup documentation to correctly compile `async/await` ([#7701](https://togithub.com/facebook/jest/pull/7701))
### [`v24.0.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2400)
[Compare Source](https://togithub.com/facebook/jest/compare/v23.6.0...v24.0.0)
##### Features
- `[jest-each]` [**BREAKING**] Add primitive pretty printing for interpolated titles ([#7694](https://togithub.com/facebook/jest/pull/7694))
- `[jest-runtime]` Add `jest.isolateModules` for scoped module initialization ([#6701](https://togithub.com/facebook/jest/pull/6701))
- `[jest-diff]` [**BREAKING**] Support diffing numbers and booleans instead of returning null for different ones ([#7605](https://togithub.com/facebook/jest/pull/7605))
- `[jest-diff]` [**BREAKING**] Replace `diff` with `diff-sequences` package ([#6961](https://togithub.com/facebook/jest/pull/6961))
- `[jest-cli]` [**BREAKING**] Only set error process error codes when they are non-zero ([#7363](https://togithub.com/facebook/jest/pull/7363))
- `[jest-config]` [**BREAKING**] Deprecate `setupTestFrameworkScriptFile` in favor of new `setupFilesAfterEnv` ([#7119](https://togithub.com/facebook/jest/pull/7119))
- `[jest-worker]` [**BREAKING**] Add functionality to call a `setup` method in the worker before the first call and a `teardown` method when ending the farm ([#7014](https://togithub.com/facebook/jest/pull/7014))
- `[jest-config]` [**BREAKING**] Set default `notifyMode` to `failure-change` ([#7024](https://togithub.com/facebook/jest/pull/7024))
- `[jest-haste-map]` [**BREAKING**] Remove support for `@providesModule` ([#6104](https://togithub.com/facebook/jest/pull/6104))
- `[jest-haste-map]` [**BREAKING**] Replace internal data structures to improve performance ([#6960](https://togithub.com/facebook/jest/pull/6960))
- `[jest-haste-map]` [**BREAKING**] Use relative paths to allow remote caching ([#7020](https://togithub.com/facebook/jest/pull/7020))
- `[jest-haste-map]` [**BREAKING**] Remove name from hash in `HasteMap.getCacheFilePath` ([#7218](https://togithub.com/facebook/jest/pull/7218))
- `[babel-preset-jest]` [**BREAKING**] Export a function instead of an object for Babel 7 compatibility ([#7203](https://togithub.com/facebook/jest/pull/7203))
- `[jest-haste-map]` [**BREAKING**] Expose relative paths when getting the file iterator ([#7321](https://togithub.com/facebook/jest/pull/7321))
- `[jest-cli]` [**BREAKING**] Run code transforms over `global{Setup,Teardown}` ([#7562](https://togithub.com/facebook/jest/pull/7562))
- `[jest-haste-map]` Add `hasteFS.getSize(path)` ([#7580](https://togithub.com/facebook/jest/pull/7580))
- `[jest-cli]` Print version ending in `-dev` when running a local Jest clone ([#7582](https://togithub.com/facebook/jest/pull/7582))
- `[jest-cli]` Add Support for `globalSetup` and `globalTeardown` in projects ([#6865](https://togithub.com/facebook/jest/pull/6865))
- `[jest-runtime]` Add `extraGlobals` to config to load extra global variables into the execution vm ([#7454](https://togithub.com/facebook/jest/pull/7454))
- `[jest-util]` Export `specialChars` containing Unicode characters and ANSI escapes for console output ([#7532](https://togithub.com/facebook/jest/pull/7532))
- `[jest-config]` Handle typescript (`ts` and `tsx`) by default ([#7533](https://togithub.com/facebook/jest/pull/7533))
- `[jest-validate]` Add support for comments in `package.json` using a `"//"` key ([#7295](https://togithub.com/facebook/jest/pull/7295))
- `[jest-config]` Add shorthand for watch plugins and runners ([#7213](https://togithub.com/facebook/jest/pull/7213))
- `[jest-jasmine2/jest-circus/jest-cli]` Add test.todo ([#6996](https://togithub.com/facebook/jest/pull/6996))
- `[pretty-format]` Option to not escape strings in diff messages ([#5661](https://togithub.com/facebook/jest/pull/5661))
- `[jest-haste-map]` Add `getFileIterator` to `HasteFS` for faster file iteration ([#7010](https://togithub.com/facebook/jest/pull/7010))
- `[jest-config]` Add `readConfigs` function, previously in `jest-cli` ([#7096](https://togithub.com/facebook/jest/pull/7096))
- `[jest-snapshot]` Enable configurable snapshot paths ([#6143](https://togithub.com/facebook/jest/pull/6143))
- `[pretty-format]` Support HTMLCollection and NodeList in DOMCollection plugin ([#7125](https://togithub.com/facebook/jest/pull/7125))
- `[jest-runtime]` Pass the normalized configuration to script transformers ([#7148](https://togithub.com/facebook/jest/pull/7148))
- `[expect]` Improve report when assertion fails, part 3 ([#7152](https://togithub.com/facebook/jest/pull/7152))
- `[jest-runtime]` If `require` fails without a file extension, print all files that match with one ([#7160](https://togithub.com/facebook/jest/pull/7160))
- `[jest-haste-map]` Make `ignorePattern` optional ([#7166](https://togithub.com/facebook/jest/pull/7166))
- `[jest-haste-map]` Add `getCacheFilePath` to get the path to the cache file for a `HasteMap` instance ([#7217](https://togithub.com/facebook/jest/pull/7217))
- `[jest-runtime]` Remove `cacheDirectory` from `ignorePattern` for `HasteMap` if not necessary ([#7166](https://togithub.com/facebook/jest/pull/7166))
- `[jest-validate]` Add syntax to validate multiple permitted types ([#7207](https://togithub.com/facebook/jest/pull/7207))
- `[jest-config]` Accept an array as as well as a string for `testRegex` ([#7209][#7209](https://togithub.com/facebook/jest/pull/7209)))
- `[expect/jest-matcher-utils]` Improve report when assertion fails, part 4 ([#7241](https://togithub.com/facebook/jest/pull/7241))
- `[expect/jest-matcher-utils]` Improve report when assertion fails, part 5 ([#7557](https://togithub.com/facebook/jest/pull/7557))
- `[expect]` Check constructor equality in .toStrictEqual() ([#7005](https://togithub.com/facebook/jest/pull/7005))
- `[jest-util]` Add `jest.getTimerCount()` to get the count of scheduled fake timers ([#7285](https://togithub.com/facebook/jest/pull/7285))
- `[jest-config]` Add `dependencyExtractor` option to use a custom module to extract dependencies from files ([#7313](https://togithub.com/facebook/jest/pull/7313), [#7349](https://togithub.com/facebook/jest/pull/7349), [#7350](https://togithub.com/facebook/jest/pull/7350), [#7362](https://togithub.com/facebook/jest/pull/7362))
- `[jest-haste-map]` Accept a `getCacheKey` method in `hasteImplModulePath` modules to reset the cache when the logic changes ([#7350](https://togithub.com/facebook/jest/pull/7350))
- `[jest-config]` Add `haste.computeSha1` option to compute the sha-1 of the files in the haste map ([#7345](https://togithub.com/facebook/jest/pull/7345))
- `[expect]` `expect(Infinity).toBeCloseTo(Infinity)` Treats `Infinity` as equal in toBeCloseTo matcher ([#7405](https://togithub.com/facebook/jest/pull/7405))
- `[jest-worker]` Add node worker-thread support to jest-worker ([#7408](https://togithub.com/facebook/jest/pull/7408))
- `[jest-config]` Allow `bail` setting to be configured with a number allowing tests to abort after `n` of failures ([#7335](https://togithub.com/facebook/jest/pull/7335))
- `[jest-config]` Allow % based configuration of `--max-workers` ([#7494](https://togithub.com/facebook/jest/pull/7494))
- `[jest-runner]` Instantiate the test environment class with the current `testPath` ([#7442](https://togithub.com/facebook/jest/pull/7442))
- `[jest-config]` Always resolve jest-environment-jsdom from jest-config ([#7476](https://togithub.com/facebook/jest/pull/7476))
- `[expect]` Improve report when assertion fails, part 6 ([#7621](https://togithub.com/facebook/jest/pull/7621))
- `[jest-worker]` Add `enableWorkerThreads` option to explicitly opt-in to `worker_threads` if available ([#7681](https://togithub.com/facebook/jest/pull/7681))
##### Fixes
- `[expect]` Accept inherited properties in `toHaveProperty` matcher ([#7686](https://togithub.com/facebook/jest/pull/7686))
- `[jest-diff]` Do not claim that `-0` and `0` have no visual difference ([#7605](https://togithub.com/facebook/jest/pull/7605))
- `[jest-mock]` Fix automock for numeric function names ([#7653](https://togithub.com/facebook/jest/pull/7653))
- `[jest-config]` Ensure `existsSync` is only called with a string parameter ([#7607](https://togithub.com/facebook/jest/pull/7607))
- `[expect]` `toStrictEqual` considers sparseness of arrays. ([#7591](https://togithub.com/facebook/jest/pull/7591))
- `[jest-cli]` Fix empty coverage data for untested files ([#7388](https://togithub.com/facebook/jest/pull/7388))
- `[jest-cli]` [**BREAKING**] Do not use `text-summary` coverage reporter by default if other reporters are configured ([#7058](https://togithub.com/facebook/jest/pull/7058))
- `[jest-mock]` [**BREAKING**] Fix bugs with mock/spy result tracking of recursive functions ([#6381](https://togithub.com/facebook/jest/pull/6381))
- `[jest-haste-map]` [**BREAKING**] Recover files correctly after haste name collisions are fixed ([#7329](https://togithub.com/facebook/jest/pull/7329))
- `[pretty-format]` [**BREAKING**] Omit non-enumerable symbol properties ([#7448](https://togithub.com/facebook/jest/pull/7448))
- `[*]` [**BREAKING**] Upgrade to Babel 7, dropping support for Babel 6 ([#7016](https://togithub.com/facebook/jest/pull/7016))
- `[jest-cli]` Avoid watch mode causing bad terminal behavior in some cases ([#7523](https://togithub.com/facebook/jest/pull/7523))
- `[jest-runner/jest-worker]` Fix missing console output in verbose mode ([#6871](https://togithub.com/facebook/jest/pull/6871))
- `[expect]` Standardize file naming in `expect` ([#7306](https://togithub.com/facebook/jest/pull/7306))
- `[jest-each]` Add empty array validation check ([#7249](https://togithub.com/facebook/jest/pull/7249))
- `[jest-cli]` Interrupt tests if interactive watch plugin key is pressed ([#7222](https://togithub.com/facebook/jest/pull/7222))
- `[jest-each]` Add each array validation check ([#7033](https://togithub.com/facebook/jest/pull/7033))
- `[jest-haste-map]` Do not visit again files with the same sha-1 ([#6990](https://togithub.com/facebook/jest/pull/6990))
- `[jest-jasmine2]` Fix memory leak in Error objects hold by the framework ([#6965](https://togithub.com/facebook/jest/pull/6965))
- `[jest-haste-map]` Fixed Haste whitelist generation for scoped modules on Windows ([#6980](https://togithub.com/facebook/jest/pull/6980))
- `[jest-mock]` Fix inheritance of static properties and methods in mocks ([#7003](https://togithub.com/facebook/jest/pull/7003))
- `[jest-mock]` Fix mocking objects without `Object.prototype` in their prototype chain ([#7003](https://togithub.com/facebook/jest/pull/7003))
- `[jest-mock]` Check `_isMockFunction` is true rather than truthy on potential mocks ([#7017](https://togithub.com/facebook/jest/pull/7017))
- `[jest-cli]` Update jest-cli to show git ref in message when using `changedSince` ([#7028](https://togithub.com/facebook/jest/pull/7028))
- `[jest-jasmine2`] Fix crash when test return Promise rejected with null ([#7049](https://togithub.com/facebook/jest/pull/7049))
- `[jest-runtime]` Check `_isMockFunction` is true rather than truthy on potential global mocks ([#7017](https://togithub.com/facebook/jest/pull/7017))
- `[jest-jasmine]` Show proper error message from async `assert` errors ([#6821](https://togithub.com/facebook/jest/pull/6821))
- `[jest-jasmine2]` Better error message when a describe block is empty ([#6372](https://togithub.com/facebook/jest/pull/6372))
- `[jest-jasmine2]` Pending calls inside async tests are reported as pending not failed ([#6782](https://togithub.com/facebook/jest/pull/6782))
- `[jest-circus]` Better error message when a describe block is empty ([#6372](https://togithub.com/facebook/jest/pull/6372))
- `[jest-jasmine2]` Add missing testLocationResults for `xit` and `fit` ([#6482](https://togithub.com/facebook/jest/pull/6482))
- `[expect]` Return false from asymmetric matchers if received value isn’t string ([#7107](https://togithub.com/facebook/jest/pull/7107))
- `[jest-cli]` Fix unhandled error when a bad revision is provided to `changedSince` ([#7115](https://togithub.com/facebook/jest/pull/7115))
- `[jest-config]` Moved dynamically assigned `cwd` from `jest-cli` to default configuration in `jest-config` ([#7146](https://togithub.com/facebook/jest/pull/7146))
- `[jest-config]` Fix `getMaxWorkers` on termux ([#7154](https://togithub.com/facebook/jest/pull/7154))
- `[jest-runtime]` Throw an explicit error if `js` is missing from `moduleFileExtensions` ([#7160](https://togithub.com/facebook/jest/pull/7160))
- `[jest-runtime]` Fix missing coverage when using negative glob pattern in `testMatch` ([#7170](https://togithub.com/facebook/jest/pull/7170))
- `[*]` Ensure `maxWorkers` is at least 1 (was 0 in some cases where there was only 1 CPU) ([#7182](https://togithub.com/facebook/jest/pull/7182))
- `[jest-runtime]` Fix transform cache invalidation when requiring a test file from multiple projects ([#7186](https://togithub.com/facebook/jest/pull/7186))
- `[jest-changed-files]` Return correctly the changed files when using `lastCommit=true` on Mercurial repositories ([#7228](https://togithub.com/facebook/jest/pull/7228))
- `[babel-jest]` Cache includes babel environment variables ([#7239](https://togithub.com/facebook/jest/pull/7239))
- `[jest-config]` Use strings instead of `RegExp` instances in normalized configuration ([#7251](https://togithub.com/facebook/jest/pull/7251))
- `[jest-circus]` Make sure to display real duration even if time is mocked ([#7264](https://togithub.com/facebook/jest/pull/7264))
- `[expect]` Improves the failing message for `toStrictEqual` matcher. ([#7224](https://togithub.com/facebook/jest/pull/7224))
- `[expect]` Improves the failing message for `toEqual` matcher. ([#7325](https://togithub.com/facebook/jest/pull/7325))
- `[jest-resolve]` Fix not being able to resolve path to mapped file with custom platform ([#7312](https://togithub.com/facebook/jest/pull/7312))
- `[jest-message-util]` Improve parsing of error messages for unusually formatted stack traces ([#7319](https://togithub.com/facebook/jest/pull/7319))
- `[jest-runtime]` Ensure error message text is not lost on errors with code frames ([#7319](https://togithub.com/facebook/jest/pull/7319))
- `[jest-haste-map]` Fix to resolve path that is start with words same as rootDir ([#7324](https://togithub.com/facebook/jest/pull/7324))
- `[expect]` Fix toMatchObject matcher when used with `Object.create(null)` ([#7334](https://togithub.com/facebook/jest/pull/7334))
- `[jest-haste-map]` Remove legacy condition for duplicate module detection ([#7333](https://togithub.com/facebook/jest/pull/7333))
- `[jest-haste-map]` Fix `require` detection with trailing commas and ignore `import typeof` modules ([#7385](https://togithub.com/facebook/jest/pull/7385))
- `[jest-cli]` Fix to set prettierPath via config file ([#7412](https://togithub.com/facebook/jest/pull/7412))
- `[expect]` Test more precisely for class instance getters ([#7477](https://togithub.com/facebook/jest/pull/7477))
- `[jest-cli]` Support dashed args ([#7497](https://togithub.com/facebook/jest/pull/7497))
- `[jest-cli]` Fix to run in band tests if watch mode enable when runInBand arg used ([#7518](https://togithub.com/facebook/jest/pull/7518))
- `[jest-runtime]` Fix mistake as test files when run coverage issue. ([#7506](https://togithub.com/facebook/jest/pull/7506))
- `[jest-cli]` print info about passWithNoTests flag ([#7309](https://togithub.com/facebook/jest/pull/7309))
- `[pretty-format]` Omit unnecessary symbol filter for object keys ([#7457](https://togithub.com/facebook/jest/pull/7457))
- `[jest-runtime]` Fix `requireActual` on node_modules with mock present ([#7404](https://togithub.com/facebook/jest/pull/7404))
- `[jest-resolve]` Fix `isBuiltinModule` to support versions of node without `module.builtinModules` ([#7565](https://togithub.com/facebook/jest/pull/7565))
- `[babel-jest]` Set `cwd` to be resilient to it changing during the runtime of the tests ([#7574](https://togithub.com/facebook/jest/pull/7574))
- `[jest-snapshot]` Write and read snapshots from disk even if `fs` is mocked ([#7080](https://togithub.com/facebook/jest/pull/7080))
- `[jest-config]` Normalize `config.cwd` and `config.rootDir` using \`realpath ([#7598](https://togithub.com/facebook/jest/pull/7598))
- `[jest-environment-node]` Fix buffer property is not ArrayBuffer issue. ([#7626](https://togithub.com/facebook/jest/pull/7626))
- `[babel-plugin-jest-hoist]` Ignore TS type annotations when looking for out-of-scope references ([#7641](https://togithub.com/facebook/jest/pull/7641))
- `[jest-config]` Add name to project if one does not exist to pick correct resolver ([#5862](https://togithub.com/facebook/jest/pull/5862))
- `[jest-runtime]` Pass `watchPathIgnorePatterns` to Haste instance ([#7585](https://togithub.com/facebook/jest/pull/7585))
- `[jest-runtime]` Resolve mock files via Haste when using `require.resolve` ([#7687](https://togithub.com/facebook/jest/pull/7687))
##### Chore & Maintenance
- `[*]` [**BREAKING**] Require Node.js 6+ for all packages ([#7258](https://togithub.com/facebook/jest/pull/7258))
- `[jest-util]` [**BREAKING**] Remove long-deprecated globals for fake timers ([#7285](https://togithub.com/facebook/jest/pull/7285))
- `[*]` [**BREAKING**] Upgrade to Micromatch 3 ([#6650](https://togithub.com/facebook/jest/pull/6650))
- `[*]` [**BREAKING**] Remove regenerator-runtime injection ([#7595](https://togithub.com/facebook/jest/pull/7595))
- `[jest-worker]` Disable `worker_threads` to avoid issues with libraries to ready for it ([#7681](https://togithub.com/facebook/jest/pull/7681))
- `[docs]` Fix message property in custom matcher example to return a function instead of a constant. ([#7426](https://togithub.com/facebook/jest/pull/7426))
- `[jest-circus]` Standardize file naming in `jest-circus` ([#7301](https://togithub.com/facebook/jest/pull/7301))
- `[docs]` Add synchronous test.each setup ([#7150](https://togithub.com/facebook/jest/pull/7150))
- `[docs]` Add `this.extend` to the Custom Matchers API reference ([#7130](https://togithub.com/facebook/jest/pull/7130))
- `[docs]` Fix default value for `coverageReporters` value in configuration docs ([#7126](https://togithub.com/facebook/jest/pull/7126))
- `[docs]` Add link for jest-extended in expect docs ([#7078](https://togithub.com/facebook/jest/pull/7078))
- `[jest-util]` Add ErrorWithStack class ([#7067](https://togithub.com/facebook/jest/pull/7067))
- `[docs]` Document `--runTestsByPath` CLI parameter ([#7046](https://togithub.com/facebook/jest/pull/7046))
- `[docs]` Fix babel-core installation instructions ([#6745](https://togithub.com/facebook/jest/pull/6745))
- `[docs]` Explain how to rewrite assertions to avoid large irrelevant diff ([#6971](https://togithub.com/facebook/jest/pull/6971))
- `[examples]` add example using Babel 7 ([#6983](https://togithub.com/facebook/jest/pull/6983))
- `[docs]` Replace shallow equality with referential identity in `ExpectAPI.md` ([#6991](https://togithub.com/facebook/jest/pull/6991))
- `[jest-changed-files]` Refactor to use `execa` over `child_process` ([#6987](https://togithub.com/facebook/jest/pull/6987))
- `[*]` Bump dated dependencies ([#6978](https://togithub.com/facebook/jest/pull/6978))
- `[scripts]` Don’t make empty sub-folders for ignored files in build folder ([#7001](https://togithub.com/facebook/jest/pull/7001))
- `[docs]` Add missing export statement in `puppeteer_environment.js` under `docs/Puppeteer.md` ([#7127](https://togithub.com/facebook/jest/pull/7127))
- `[docs]` Removed useless expect.assertions in `TestingAsyncCode.md` ([#7131](https://togithub.com/facebook/jest/pull/7131))
- `[docs]` Remove references to `@providesModule` which isn't supported anymore ([#7147](https://togithub.com/facebook/jest/pull/7147))
- `[docs]` Update `setupFiles` documentation for clarity ([#7187](https://togithub.com/facebook/jest/pull/7187))
- `[docs]` Change `require.require*` to `jest.require*` ([#7210](https://togithub.com/facebook/jest/pull/7210))
- `[jest-circus]` Add readme.md ([#7198](https://togithub.com/facebook/jest/pull/7198))
- `[jest-editor-support]` Remove from the repository ([#7232](https://togithub.com/facebook/jest/pull/7232))
- `[jest-test-typescript-parser]` Remove from the repository ([#7232](https://togithub.com/facebook/jest/pull/7232))
- `[tests]` Free tests from the dependency on value of FORCE_COLOR ([#6585](https://togithub.com/facebook/jest/pull/6585/files))
- `[*]` Add babel plugin to make sure Jest is unaffected by fake Promise implementations ([#7225](https://togithub.com/facebook/jest/pull/7225))
- `[docs]` Add correct default value for `testUrl` config option ([#7277](https://togithub.com/facebook/jest/pull/7277))
- `[docs]` Remove duplicate code in `MockFunctions` ([#7297](https://togithub.com/facebook/jest/pull/7297))
- `[*]` Add check for Facebook copyright headers on CI ([#7370](https://togithub.com/facebook/jest/pull/7370))
- `[*]` Update Facebook copyright headers ([#7589](https://togithub.com/facebook/jest/pull/7589))
- `[jest-haste-
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This PR contains the following updates:
23.6.0
->24.9.0
Release Notes
facebook/jest
### [`v24.9.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2490) [Compare Source](https://togithub.com/facebook/jest/compare/v24.8.0...v24.9.0) ##### Features - `[expect]` Highlight substring differences when matcher fails, part 1 ([#8448](https://togithub.com/facebook/jest/pull/8448)) - `[expect]` Highlight substring differences when matcher fails, part 2 ([#8528](https://togithub.com/facebook/jest/pull/8528)) - `[expect]` Improve report when mock-spy matcher fails, part 1 ([#8640](https://togithub.com/facebook/jest/pull/8640)) - `[expect]` Improve report when mock-spy matcher fails, part 2 ([#8649](https://togithub.com/facebook/jest/pull/8649)) - `[expect]` Improve report when mock-spy matcher fails, part 3 ([#8697](https://togithub.com/facebook/jest/pull/8697)) - `[expect]` Improve report when mock-spy matcher fails, part 4 ([#8710](https://togithub.com/facebook/jest/pull/8710)) - `[expect]` Throw matcher error when received cannot be jasmine spy ([#8747](https://togithub.com/facebook/jest/pull/8747)) - `[expect]` Improve report when negative CalledWith assertion fails ([#8755](https://togithub.com/facebook/jest/pull/8755)) - `[expect]` Improve report when positive CalledWith assertion fails ([#8771](https://togithub.com/facebook/jest/pull/8771)) - `[expect]` Display equal values for ReturnedWith similar to CalledWith ([#8791](https://togithub.com/facebook/jest/pull/8791)) - `[expect, jest-snapshot]` Change color from green for some args in matcher hints ([#8812](https://togithub.com/facebook/jest/pull/8812)) - `[jest-snapshot]` Highlight substring differences when matcher fails, part 3 ([#8569](https://togithub.com/facebook/jest/pull/8569)) - `[jest-core]` Improve report when snapshots are obsolete ([#8448](https://togithub.com/facebook/jest/pull/8665)) - `[jest-cli]` Improve chai support (with detailed output, to match jest exceptions) ([#8454](https://togithub.com/facebook/jest/pull/8454)) - `[*]` Manage the global timeout with `--testTimeout` command line argument. ([#8456](https://togithub.com/facebook/jest/pull/8456)) - `[pretty-format]` Render custom displayName of memoized components ([#8546](https://togithub.com/facebook/jest/pull/8546)) - `[jest-validate]` Allow `maxWorkers` as part of the `jest.config.js` ([#8565](https://togithub.com/facebook/jest/pull/8565)) - `[jest-runtime]` Allow passing configuration objects to transformers ([#7288](https://togithub.com/facebook/jest/pull/7288)) - `[@jest/core, @jest/test-sequencer]` Support async sort in custom `testSequencer` ([#8642](https://togithub.com/facebook/jest/pull/8642)) - `[jest-runtime, @jest/fake-timers]` Add `jest.advanceTimersToNextTimer` ([#8713](https://togithub.com/facebook/jest/pull/8713)) - `[@jest-transform]` Extract transforming require logic within `jest-core` into `@jest-transform` ([#8756](https://togithub.com/facebook/jest/pull/8756)) - `[jest-matcher-utils]` Add color options to `matcherHint` ([#8795](https://togithub.com/facebook/jest/pull/8795)) - `[jest-circus/jest-jasmine2]` Give clearer output for Node assert errors ([#8792](https://togithub.com/facebook/jest/pull/8792)) - `[jest-runner]` Export all types in the type signature of `jest-runner` ([#8825](https://togithub.com/facebook/jest/pull/8825)) ##### Fixes - `[jest-cli]` Detect side-effect only imports when running `--onlyChanged` or `--changedSince` ([#8670](https://togithub.com/facebook/jest/pull/8670)) - `[jest-cli]` Allow `--maxWorkers` to work with % input again ([#8565](https://togithub.com/facebook/jest/pull/8565)) - `[babel-plugin-jest-hoist]` Expand list of whitelisted globals in global mocks ([#8429](https://togithub.com/facebook/jest/pull/8429)) - `[jest-core]` Make watch plugin initialization errors look nice ([#8422](https://togithub.com/facebook/jest/pull/8422)) - `[jest-snapshot]` Prevent inline snapshots from drifting when inline snapshots are updated ([#8492](https://togithub.com/facebook/jest/pull/8492)) - `[jest-haste-map]` Don't throw on missing mapper in Node crawler ([#8558](https://togithub.com/facebook/jest/pull/8558)) - `[jest-core]` Fix incorrect `passWithNoTests` warning ([#8595](https://togithub.com/facebook/jest/pull/8595)) - `[jest-snapshots]` Fix test retries that contain snapshots ([#8629](https://togithub.com/facebook/jest/pull/8629)) - `[jest-mock]` Fix incorrect assignments when restoring mocks in instances where they originally didn't exist ([#8631](https://togithub.com/facebook/jest/pull/8631)) - `[expect]` Fix stack overflow when matching objects with circular references ([#8687](https://togithub.com/facebook/jest/pull/8687)) - `[jest-haste-map]` Workaround a node >=12.5.0 bug that causes the process not to exit after tests have completed and cancerous memory growth ([#8787](https://togithub.com/facebook/jest/pull/8787)) ##### Chore & Maintenance - `[jest-leak-detector]` remove code repeat ([#8438](https://togithub.com/facebook/jest/pull/8438)) - `[docs]` Add example to `jest.requireActual` ([#8482](https://togithub.com/facebook/jest/pull/8482)) - `[docs]` Add example to `jest.mock` for mocking ES6 modules with the `factory` parameter ([#8550](https://togithub.com/facebook/jest/pull/8550)) - `[docs]` Add information about using `jest.doMock` with ES6 imports ([#8573](https://togithub.com/facebook/jest/pull/8573)) - `[docs]` Fix variable name in custom-matcher-api code example ([#8582](https://togithub.com/facebook/jest/pull/8582)) - `[docs]` Fix example used in custom environment docs ([#8617](https://togithub.com/facebook/jest/pull/8617)) - `[docs]` Updated react tutorial to refer to new package of react-testing-library ([@testing-library/react](https://togithub.com/testing-library/react)) ([#8753](https://togithub.com/facebook/jest/pull/8753)) - `[docs]` Updated imports of react-testing-library to [@testing-library/react](https://togithub.com/testing-library/react) in website ([#8757](https://togithub.com/facebook/jest/pull/8757)) - `[jest-core]` Add `getVersion` (moved from `jest-cli`) ([#8706](https://togithub.com/facebook/jest/pull/8706)) - `[docs]` Fix MockFunctions example that was using toContain instead of toContainEqual ([#8765](https://togithub.com/facebook/jest/pull/8765)) - `[*]` Make sure copyright header comment includes license ([#8783](https://togithub.com/facebook/jest/pull/8783)) - `[*]` Check copyright and license as one joined substring ([#8815](https://togithub.com/facebook/jest/pull/8815)) - `[docs]` Fix WatchPlugins `jestHooks.shouldRunTestSuite` example that receives an object ([#8784](https://togithub.com/facebook/jest/pull/8784)) - `[*]` Enforce LF line endings ([#8809](https://togithub.com/facebook/jest/pull/8809)) - `[pretty-format]` Delete obsolete link and simplify structure in README ([#8824](https://togithub.com/facebook/jest/pull/8824)) ##### Performance - `[jest-watcher]` Minor optimization for JestHook ([#8746](https://togithub.com/facebook/jest/pull/8746)) - `[@jest/reporters]` Prevent runaway CPU useage with `--notify` on macOS ([#8830](https://togithub.com/facebook/jest/issues/8830)) ### [`v24.8.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2480) [Compare Source](https://togithub.com/facebook/jest/compare/v24.7.1...v24.8.0) ##### Features - `[jest-circus]` Bind to Circus events via an optional event handler on any custom env ([#8344](https://togithub.com/facebook/jest/pull/8344)) - `[expect]` Improve report when matcher fails, part 15 ([#8281](https://togithub.com/facebook/jest/pull/8281)) - `[jest-cli]` Update `--forceExit` and "did not exit for one second" message colors ([#8329](https://togithub.com/facebook/jest/pull/8329)) - `[expect]` Improve report when matcher fails, part 16 ([#8306](https://togithub.com/facebook/jest/pull/8306)) - `[jest-runner]` Pass docblock pragmas to TestEnvironment constructor ([#8320](https://togithub.com/facebook/jest/pull/8320)) - `[docs]` Add DynamoDB guide ([#8319](https://togithub.com/facebook/jest/pull/8319)) - `[expect]` Improve report when matcher fails, part 17 ([#8349](https://togithub.com/facebook/jest/pull/8349)) - `[expect]` Improve report when matcher fails, part 18 ([#8356](https://togithub.com/facebook/jest/pull/8356)) - `[expect]` Improve report when matcher fails, part 19 ([#8367](https://togithub.com/facebook/jest/pull/8367)) ##### Fixes - `[jest-each]` Fix bug with placeholder values ([#8289](https://togithub.com/facebook/jest/pull/8289)) - `[jest-snapshot]` Inline snapshots: do not indent empty lines ([#8277](https://togithub.com/facebook/jest/pull/8277)) - `[@jest/runtime, @jest/transform]` Allow custom transforms for JSON dependencies ([#2578](https://togithub.com/facebook/jest/pull/2578)) - `[jest-core]` Make `detectOpenHandles` imply `runInBand` ([#8283](https://togithub.com/facebook/jest/pull/8283)) - `[jest-haste-map]` Fix the `mapper` option which was incorrectly ignored ([#8299](https://togithub.com/facebook/jest/pull/8299)) - `[jest-jasmine2]` Fix describe return value warning being shown if the describe function throws ([#8335](https://togithub.com/facebook/jest/pull/8335)) - `[jest-environment-jsdom]` Re-declare global prototype of JSDOMEnvironment ([#8352](https://togithub.com/facebook/jest/pull/8352)) - `[jest-snapshot]` Handle arrays when merging snapshots ([#7089](https://togithub.com/facebook/jest/pull/7089)) - `[expect]` Extract names of async and generator functions ([#8362](https://togithub.com/facebook/jest/pull/8362)) - `[jest-runtime]` Fix virtual mocks not being unmockable after previously being mocked ([#8396](https://togithub.com/facebook/jest/pull/8396)) - `[jest-transform]` Replace special characters in transform cache filenames to support Windows ([#8353](https://togithub.com/facebook/jest/pull/8353)) - `[jest-config]` Allow exactly one project ([#7498](https://togithub.com/facebook/jest/pull/7498)) ##### Chore & Maintenance - `[expect]` Fix label and add opposite assertion for toEqual tests ([#8288](https://togithub.com/facebook/jest/pull/8288)) - `[docs]` Mention Jest MongoDB Preset ([#8318](https://togithub.com/facebook/jest/pull/8318)) - `[@jest/reporters]` Migrate away from `istanbul-api` ([#8294](https://togithub.com/facebook/jest/pull/8294)) - `[*]` Delete obsolete emails tag from header comment in test files ([#8377](https://togithub.com/facebook/jest/pull/8377)) - `[expect]` optimize compare nodes ([#8368](https://togithub.com/facebook/jest/pull/8368)) - `[docs]` Fix typo in MockFunctionAPI.md ([#8406](https://togithub.com/facebook/jest/pull/8406)) - `[LICENSE]` Follow copyright header guidelines and delete For Jest software ([#8428](https://togithub.com/facebook/jest/pull/8428)) ##### Performance - `[jest-runtime]` Fix module registry memory leak ([#8282](https://togithub.com/facebook/jest/pull/8282)) - `[jest-resolve]` optimize resolve module path ([#8388](https://togithub.com/facebook/jest/pull/8388)) - `[jest-resolve]` cache current directory ([#8412](https://togithub.com/facebook/jest/pull/8412)) - `[jest-get-type]` Simplify checking for primitive ([#8416](https://togithub.com/facebook/jest/pull/8416)) ### [`v24.7.1`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2471) [Compare Source](https://togithub.com/facebook/jest/compare/v24.7.0...v24.7.1) ##### Fixes - `[@jest/config]` Normalize `testSequencer` to its absolute path ([#8267](https://togithub.com/facebook/jest/pull/8267)) - `[@jest/console]` Print to stderr when calling `console.error`, `console.warn` or `console.assert` using the `jest-runtime` CLI ([#8261](https://togithub.com/facebook/jest/pull/8261)) ### [`v24.7.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2470) [Compare Source](https://togithub.com/facebook/jest/compare/v24.6.0...v24.7.0) ##### Features - `[@jest/core, @jest/test-sequencer]` Move `testSequencer` to individual package `@jest/test-sequencer` ([#8223](https://togithub.com/facebook/jest/pull/8223)) - `[@jest/core, jest-cli, jest-config]` Add option `testSequencer` allow user use custom sequencer. ([#8223](https://togithub.com/facebook/jest/pull/8223)) ##### Fixes - `[expect]` Add negative equality tests for iterables ([#8260](https://togithub.com/facebook/jest/pull/8260)) - `[jest-haste-map]` Resolve fs watcher EMFILE error ([#8258](https://togithub.com/facebook/jest/pull/8258)) ##### Chore & Maintenance - `[expect]` Remove repetition of matcherName and options in matchers ([#8224](https://togithub.com/facebook/jest/pull/8224)) ##### Performance ### [`v24.6.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2460) [Compare Source](https://togithub.com/facebook/jest/compare/v24.5.0...v24.6.0) ##### Features - `[expect]`: Improve report when matcher fails, part 13 ([#8077](https://togithub.com/facebook/jest/pull/8077)) - `[@jest/core]` Filter API pre-filter setup hook ([#8142](https://togithub.com/facebook/jest/pull/8142)) - `[jest-snapshot]` Improve report when matcher fails, part 14 ([#8132](https://togithub.com/facebook/jest/pull/8132)) - `[@jest/reporter]` Display todo and skip test descriptions when verbose is true ([#8038](https://togithub.com/facebook/jest/pull/8038)) - `[jest-runner]` Support default exports for test environments ([#8163](https://togithub.com/facebook/jest/pull/8163)) - `[pretty-format]` Support React.Suspense ([#8180](https://togithub.com/facebook/jest/pull/8180)) - `[jest-snapshot]` Indent inline snapshots ([#8198](https://togithub.com/facebook/jest/pull/8198)) - `[jest-config]` Support colors in `displayName` configuration ([#8025](https://togithub.com/facebook/jest/pull/8025)) ##### Fixes - `[jest-circus]` Fix test retries with beforeAll/beforeEach failures ([#8227](https://togithub.com/facebook/jest/pull/8227)) - `[expect]` Fix circular references in iterable equality ([#8160](https://togithub.com/facebook/jest/pull/8160)) - `[jest-changed-files]` Change method of obtaining git root ([#8052](https://togithub.com/facebook/jest/pull/8052)) - `[jest-each]` Fix test function type ([#8145](https://togithub.com/facebook/jest/pull/8145)) - `[jest-fake-timers]` `getTimerCount` not taking immediates and ticks into account ([#8139](https://togithub.com/facebook/jest/pull/8139)) - `[jest-runtime]` Allow json file as manual mock ([#8159](https://togithub.com/facebook/jest/pull/8159)) - `[pretty-format]` Print `BigInt` as a readable number instead of `{}` ([#8138](https://togithub.com/facebook/jest/pull/8138)) - `[jest-core]` Fix ability to transform dependencies required from globalSetup script ([#8143](https://togithub.com/facebook/jest/pull/8143)) - `[@jest/reporters]` Fix Cannot read property converageData of null ([#8168](https://togithub.com/facebook/jest/pull/8168)) - `[jest-worker]` `JEST_WORKER_ID` starts at 1 ([#8205](https://togithub.com/facebook/jest/pull/8205)) - `[jest-config]` Use default cwd even if config contains a cwd property ([#7923](https://togithub.com/facebook/jest/pull/7923)) - `[jest-resolve-dependencies]`: Remove internal peer dependencies ([#8215](https://togithub.com/facebook/jest/pull/8215)) - `[jest-resolve]`: Remove internal peer dependencies ([#8215](https://togithub.com/facebook/jest/pull/8215)) - `[jest-snapshot]`: Remove internal peer dependencies ([#8215](https://togithub.com/facebook/jest/pull/8215)) - `[jest-resolve]` Fix requireActual with moduleNameMapper ([#8210](https://togithub.com/facebook/jest/pull/8210)) - `[jest-haste-map]` Fix haste map duplicate detection in watch mode ([#8237](https://togithub.com/facebook/jest/pull/8237)) ##### Chore & Maintenance - `[*]` Remove flow from code base ([#8061](https://togithub.com/facebook/jest/pull/8061)) - `[*]` Use property initializer syntax in Jest codebase ([#8117](https://togithub.com/facebook/jest/pull/8117)) - `[*]` Move [@types/node](https://togithub.com/types/node) to the root package.json ([#8129](https://togithub.com/facebook/jest/pull/8129)) - `[*]` Add documentation and tests related to auto-mocking ([#8099](https://togithub.com/facebook/jest/pull/8099)) - `[*]` Add `jest-watch-typeahead` as a devDependency ([#6449](https://togithub.com/facebook/jest/pull/6449)) - `[*]` upgrade TS to 3.4.0-dev\* for inceremental builds ([#8149](https://togithub.com/facebook/jest/pull/8149)) - `[docs]` Improve description of optional arguments in ExpectAPI.md ([#8126](https://togithub.com/facebook/jest/pull/8126)) ##### Performance - `[jest-haste-map]` Optimize haste map data structure for serialization/deserialization ([#8171](https://togithub.com/facebook/jest/pull/8171)) - `[jest-haste-map]` Avoid persisting haste map or processing files when not changed ([#8153](https://togithub.com/facebook/jest/pull/8153)) - `[jest-core]` Improve performance of SearchSource.findMatchingTests by 15% ([#8184](https://togithub.com/facebook/jest/pull/8184)) - `[jest-resolve]` Optimize internal cache lookup performance ([#8183](https://togithub.com/facebook/jest/pull/8183)) - `[jest-core]` Dramatically improve watch mode performance ([#8201](https://togithub.com/facebook/jest/pull/8201)) - `[jest-transform]` Cache regular expression instead of creating anew for every file in ScriptTransformer ([#8235](https://togithub.com/facebook/jest/pull/8235)) - `[jest-core]` Fix memory leak of source map info and minor performance improvements ([#8234](https://togithub.com/facebook/jest/pull/8234)) - `[jest-console]` Fix memory leak by releasing console output reference when printed to stdout ([#8233](https://togithub.com/facebook/jest/pull/8233)) - `[jest-runtime]` Use `Map` instead of `Object` for module registry ([#8232](https://togithub.com/facebook/jest/pull/8232)) ### [`v24.5.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2450) [Compare Source](https://togithub.com/facebook/jest/compare/v24.4.0...v24.5.0) ##### Features - `[jest-haste-map]` Expose `throwOnModuleCollision` via `config.haste` ([#8113](https://togithub.com/facebook/jest/pull/8113)) ##### Chore & Maintenance - `[expect]` Export `Matchers` interface from `expect` ([#8093](https://togithub.com/facebook/jest/pull/8093)) ### [`v24.4.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2440) [Compare Source](https://togithub.com/facebook/jest/compare/v24.3.1...v24.4.0) ##### Features - `[jest-resolve]` Now supports PnP environment without plugins ([#8094](https://togithub.com/facebook/jest/pull/8094)) ##### Fixes - `[expect]` Compare DOM nodes even if there are multiple Node classes ([#8064](https://togithub.com/facebook/jest/pull/8064)) - `[jest-worker]` `worker.getStdout()` can return `null` ([#8083](https://togithub.com/facebook/jest/pull/8083)) - `[jest-worker]` Re-attach stdout and stderr from new processes/threads created after retries ([#8087](https://togithub.com/facebook/jest/pull/8087)) - `[jest-reporters/jest-runner]` Serialize `changedFiles` passed to workers ([#8090](https://togithub.com/facebook/jest/pull/8090)) ##### Chore & Maintenance - `[*]` Make sure to include `d.ts` files in the tarball when building ([#8086](https://togithub.com/facebook/jest/pull/8086)) ### [`v24.3.1`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2431) [Compare Source](https://togithub.com/facebook/jest/compare/v24.3.0...v24.3.1) ##### Fixes - `[jest-cli]` export functions compatible with `import {default}` ([#8080](https://togithub.com/facebook/jest/pull/8080)) - `[jest-worker]`: Fix retries and error notification in workers ([#8079](https://togithub.com/facebook/jest/pull/8079)) ##### Chore & Maintenance - `[pretty-format]`: Use `react-is` instead of manual `$typeof` checks ([#8060](https://togithub.com/facebook/jest/pull/8060)) ### [`v24.3.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2430) [Compare Source](https://togithub.com/facebook/jest/compare/v24.1.0...v24.3.0) We skipped 24.2.0 because a draft was accidentally published. Please use `24.3.0` or a newer version instead. ##### Features - `[expect]`: Improve report when matcher fails, part 10 ([#7960](https://togithub.com/facebook/jest/pull/7960)) - `[expect]`: Improve report when matcher fails, part 11 ([#8008](https://togithub.com/facebook/jest/pull/8008)) - `[expect]`: Improve report when matcher fails, part 12 ([#8033](https://togithub.com/facebook/jest/pull/8033)) - `[expect]`: Improve report when matcher fails, part 7 ([#7866](https://togithub.com/facebook/jest/pull/7866)) - `[expect]`: Improve report when matcher fails, part 8 ([#7876](https://togithub.com/facebook/jest/pull/7876)) - `[expect]`: Improve report when matcher fails, part 9 ([#7940](https://togithub.com/facebook/jest/pull/7940)) - `[jest-circus/jest-jasmine2]` Warn if describe returns a value ([#7852](https://togithub.com/facebook/jest/pull/7852)) - `[jest-config]` Print error information on preset normalization error ([#7935](https://togithub.com/facebook/jest/pull/7935)) - `[jest-get-type]` Add `isPrimitive` function ([#7708](https://togithub.com/facebook/jest/pull/7708)) - `[jest-haste-map]` Add `skipPackageJson` option ([#7778](https://togithub.com/facebook/jest/pull/7778)) - `[jest-util]` Add `isPromise` ([#7852](https://togithub.com/facebook/jest/pull/7852)) - `[pretty-format]` Support `React.memo` ([#7891](https://togithub.com/facebook/jest/pull/7891)) ##### Fixes - `[expect]` Fix `toStrictEqual` not considering arrays with objects having undefined values correctly ([#7938](https://togithub.com/facebook/jest/pull/7938)) - `[expect]` Fix custom async matcher stack trace ([#7652](https://togithub.com/facebook/jest/pull/7652)) - `[expect]` Fix non-object received value in toHaveProperty ([#7986](https://togithub.com/facebook/jest/pull/7986), [#8067](https://togithub.com/facebook/jest/pull/8067)) - `[expect]` Fix non-symmetric equal for Number ([#7948](https://togithub.com/facebook/jest/pull/7948)) - `[expect]` Remove duck typing and obsolete browser support code when comparing DOM nodes and use DOM-Level-3 API instead ([#7995](https://togithub.com/facebook/jest/pull/7995)) - `[jest-changed-files]` Fix `getChangedFilesFromRoots` to not return parts of the commit messages as if they were files, when the commit messages contained multiple paragraphs ([#7961](https://togithub.com/facebook/jest/pull/7961)) - `[jest-changed-files]` Fix pattern for HG changed files ([#8066](https://togithub.com/facebook/jest/pull/8066)) - `[jest-changed-files]` Improve default file selection for Mercurial repos ([#7880](https://togithub.com/facebook/jest/pull/7880)) - `[jest-circus]` Fix bug with test.only ([#7888](https://togithub.com/facebook/jest/pull/7888)) - `[jest-circus]`: Throw explicit error when errors happen after test is considered complete ([#8005](https://togithub.com/facebook/jest/pull/8005)) - `[jest-cli]` Fix prototype pollution vulnerability in dependency ([#7904](https://togithub.com/facebook/jest/pull/7904)) - `[jest-cli]` Refactor `-o` and `--coverage` combined ([#7611](https://togithub.com/facebook/jest/pull/7611)) - `[jest-environment-node]` Add missing globals: TextEncoder and TextDecoder ([#8022](https://togithub.com/facebook/jest/pull/8022)) - `[jest-haste-map]` Enforce uniqueness in names (mocks and haste ids) ([#8002](https://togithub.com/facebook/jest/pull/8002)) - `[jest-jasmine2]`: Throw explicit error when errors happen after test is considered complete ([#8005](https://togithub.com/facebook/jest/pull/8005)) - `[jest-mock]` Adds a type check to `prototype` to allow mocks of objects with a primitive `prototype` property. ([#8040](https://togithub.com/facebook/jest/pull/8040)) - `[jest-transform]` Normalize config and remove unnecessary checks, convert `TestUtils.js` to TypeScript ([#7801](https://togithub.com/facebook/jest/pull/7801)) - `[jest-util]`Make sure to not fail if unable to assign `toStringTag` to the `process` object, which is read only in Node 12 ([#8050](https://togithub.com/facebook/jest/pull/8050)) - `[jest-validate]` Fix validating async functions ([#7894](https://togithub.com/facebook/jest/issues/7894)) - `[jest-worker]` Fix `jest-worker` when using pre-allocated jobs ([#7934](https://togithub.com/facebook/jest/pull/7934)) - `[static]` Remove console log '-' on the front page ([#7977](https://togithub.com/facebook/jest/pull/7977)) ##### Chore & Maintenance - `[*]`: Setup building, linting and testing of TypeScript ([#7808](https://togithub.com/facebook/jest/pull/7808), [#7855](https://togithub.com/facebook/jest/pull/7855), [#7951](https://togithub.com/facebook/jest/pull/7951)) - `[@jest/console]`: Extract custom `console` implementations from `jest-util` into a new separate package ([#8030](https://togithub.com/facebook/jest/pull/8030)) - `[@jest/core]` Create new package, which is `jest-cli` minus `yargs` and `prompts` ([#7696](https://togithub.com/facebook/jest/pull/7696)) - `[@jest/core]`: Migrate to TypeScript ([#7998](https://togithub.com/facebook/jest/pull/7998)) - `[@jest/fake-timers]`: Extract FakeTimers class from `jest-util` into a new separate package ([#7987](https://togithub.com/facebook/jest/pull/7987)) - `[@jest/reporter]`: New package extracted from `jest-cli` ([#7902](https://togithub.com/facebook/jest/pull/7902)) - `[@jest/reporters]`: Migrate to TypeScript ([#7994](https://togithub.com/facebook/jest/pull/7994), [#8045](https://togithub.com/facebook/jest/pull/8045)) - `[@jest/source-map]`: Extract `getCallsite` function from `jest-util` into a new separate package ([#8029](https://togithub.com/facebook/jest/pull/8029)) - `[@jest/test-result]`: Extract TestResult types and helpers into a new separate package ([#8034](https://togithub.com/facebook/jest/pull/8034)) - `[@jest/transform]`: Migrate to TypeScript ([#7918](https://togithub.com/facebook/jest/pull/7918), [#7945](https://togithub.com/facebook/jest/pull/7945)) - `[@jest/transform]`: New package extracted from `jest-runtime` ([#7915](https://togithub.com/facebook/jest/pull/7915)) - `[@jest/types]`: New package to handle shared types ([#7834](https://togithub.com/facebook/jest/pull/7834)) - `[babel-jest]`: Migrate to TypeScript ([#7862](https://togithub.com/facebook/jest/pull/7862)) - `[babel-plugin-jest-hoist]`: Migrate to TypeScript ([#7898](https://togithub.com/facebook/jest/pull/7898)) - `[diff-sequences]`: Migrate to Typescript ([#7820](https://togithub.com/facebook/jest/pull/7820)) - `[docs]` Add missing import to docs ([#7928](https://togithub.com/facebook/jest/pull/7928)) - `[docs]` Update automock configuration, add note related to manual mocks ([#8051](https://togithub.com/facebook/jest/pull/8051)) - `[docs]` Update/Organize TestSequencer and testSchedulerHelper code comments([#7984](https://togithub.com/facebook/jest/pull/7984)) - `[docs]`: Fix image paths in SnapshotTesting.md for current and version 24 ([#7872](https://togithub.com/facebook/jest/pull/7872)) - `[docs]`: Improve runAllTimers doc (it exhausts the micro-task queue) ([#8031](https://togithub.com/facebook/jest/pull/8031)) - `[docs]`: Update CONTRIBUTING.md to add information about running jest with `jest-circus` locally ([#8013](https://togithub.com/facebook/jest/pull/8013)). - `[expect]`: Migrate to TypeScript ([#7919](https://togithub.com/facebook/jest/pull/7919), [#8028](https://togithub.com/facebook/jest/pull/8028)) - `[jest-changed-files]`: Migrate to TypeScript ([#7827](https://togithub.com/facebook/jest/pull/7827)) - `[jest-circus]`: Migrate to TypeScript ([#7916](https://togithub.com/facebook/jest/pull/7916)) - `[jest-cli]`: Migrate to TypeScript ([#8024](https://togithub.com/facebook/jest/pull/8024)) - `[jest-diff]`: Migrate to TypeScript ([#7824](https://togithub.com/facebook/jest/pull/7824), [#8027](https://togithub.com/facebook/jest/pull/8027)) - `[jest-docblock]`: Migrate to TypeScript ([#7836](https://togithub.com/facebook/jest/pull/7836)) - `[jest-each]`: Migrate to Typescript ([#8007](https://togithub.com/facebook/jest/pull/8007)) - `[jest-each]`: Refactor into multiple files with better types ([#8018](https://togithub.com/facebook/jest/pull/8018)) - `[jest-environment-jsdom]`: Migrate to TypeScript ([#7985](https://togithub.com/facebook/jest/pull/8003)) - `[jest-environment-node]`: Migrate to TypeScript ([#7985](https://togithub.com/facebook/jest/pull/7985)) - `[jest-get-type]`: Migrate to TypeScript ([#7818](https://togithub.com/facebook/jest/pull/7818)) - `[jest-haste-map]`: Migrate to TypeScript ([#7854](https://togithub.com/facebook/jest/pull/7854), [#7951](https://togithub.com/facebook/jest/pull/7951)) - `[jest-jasmine2]`: TS migration ([#7970](https://togithub.com/facebook/jest/pull/7970)) - `[jest-leak-detector]`: Migrate to TypeScript ([#7825](https://togithub.com/facebook/jest/pull/7825)) - `[jest-matcher-utils]`: Migrate to TypeScript ([#7835](https://togithub.com/facebook/jest/pull/7835)) - `[jest-message-util]`: Migrate to TypeScript ([#7834](https://togithub.com/facebook/jest/pull/7834)) - `[jest-mock]`: Migrate to TypeScript ([#7847](https://togithub.com/facebook/jest/pull/7847), [#7850](https://togithub.com/facebook/jest/pull/7850), [#7971](https://togithub.com/facebook/jest/pull/7971)) - `[jest-phabricator]`: Migrate to TypeScript ([#7965](https://togithub.com/facebook/jest/pull/7965)) - `[jest-regex-util]`: Migrate to TypeScript ([#7822](https://togithub.com/facebook/jest/pull/7822)) - `[jest-repl]`: Migrate to TypeScript ([#8000](https://togithub.com/facebook/jest/pull/8000)) - `[jest-resolve-dependencies]`: Migrate to TypeScript ([#7922](https://togithub.com/facebook/jest/pull/7922)) - `[jest-resolve]`: Migrate to TypeScript ([#7871](https://togithub.com/facebook/jest/pull/7871)) - `[jest-runner]`: Migrate to TypeScript ([#7968](https://togithub.com/facebook/jest/pull/7968)) - `[jest-runtime]`: Migrate to TypeScript ([#7964](https://togithub.com/facebook/jest/pull/7964), [#7988](https://togithub.com/facebook/jest/pull/7988)) - `[jest-serializer]`: Migrate to TypeScript ([#7841](https://togithub.com/facebook/jest/pull/7841)) - `[jest-snapshot]`: Migrate to TypeScript ([#7899](https://togithub.com/facebook/jest/pull/7899)) - `[jest-util]`: Migrate to TypeScript ([#7844](https://togithub.com/facebook/jest/pull/7844), [#8021](https://togithub.com/facebook/jest/pull/8021)) - `[jest-validate]`: Migrate to TypeScript ([#7991](https://togithub.com/facebook/jest/pull/7991)) - `[jest-watcher]`: Migrate to TypeScript ([#7843](https://togithub.com/facebook/jest/pull/7843)) - `[jest-worker]`: Migrate to TypeScript ([#7853](https://togithub.com/facebook/jest/pull/7853)) - `[jest]`: Migrate to TypeScript ([#8024](https://togithub.com/facebook/jest/pull/8024)) - `[pretty-format]`: Migrate to TypeScript ([#7809](https://togithub.com/facebook/jest/pull/7809), [#7809](https://togithub.com/facebook/jest/pull/7972)) ##### Performance - `[jest-haste-map]` Optimize haste map tracking of deleted files with Watchman. ([#8056](https://togithub.com/facebook/jest/pull/8056)) ### [`v24.1.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2410) [Compare Source](https://togithub.com/facebook/jest/compare/v24.0.0...v24.1.0) ##### Features - `[jest-resolve]`: Pass default resolver into custom resolvers ([#7714](https://togithub.com/facebook/jest/pull/7714)) - `[jest-cli]`: `global{Setup,Teardown}` use default export with es modules ([#7750](https://togithub.com/facebook/jest/pull/7750)) - `[jest-runtime]` Better error messages when the jest environment is used after teardown by async code ([#7756](https://togithub.com/facebook/jest/pull/7756)) - `[jest-jasmine2]` Will now only execute at most 5 concurrent tests _within the same testsuite_ when using `test.concurrent` ([#7770](https://togithub.com/facebook/jest/pull/7770)) - `[jest-circus]` Same as `[jest-jasmine2]`, only 5 tests will run concurrently by default ([#7770](https://togithub.com/facebook/jest/pull/7770)) - `[jest-config]` A new `maxConcurrency` option allows to change the number of tests allowed to run concurrently ([#7770](https://togithub.com/facebook/jest/pull/7770)) ##### Fixes - `[jest-runtime]` Fix for mocks not working with module name mapper ([#7787](https://togithub.com/facebook/jest/pull/7787)) - `[jest-cli]` Break dependency cycle when using Jest programmatically ([#7707](https://togithub.com/facebook/jest/pull/7707)) - `[jest-config]` Extract setupFilesAfterEnv from preset ([#7724](https://togithub.com/facebook/jest/pull/7724)) - `[jest-cli]` Do not execute any `globalSetup` or `globalTeardown` if there are no tests to execute ([#7745](https://togithub.com/facebook/jest/pull/7745)) - `[jest-runtime]` Lock down version of `write-file-atomic` ([#7725](https://togithub.com/facebook/jest/pull/7725)) - `[jest-cli]` Print log entries when logging happens after test environment is torn down ([#7731](https://togithub.com/facebook/jest/pull/7731)) - `[jest-config]` Do not use a uuid as `name` since that breaks caching ([#7746](https://togithub.com/facebook/jest/pull/7746)) - `[jest-config]` Make sure `normalize` can consume `Defaults` without warnings ([#7742](https://togithub.com/facebook/jest/pull/7742)) - `[jest-config]` Allow `moduleFileExtensions` without 'js' for custom runners ([#7751](https://togithub.com/facebook/jest/pull/7751)) - `[jest-cli]` Load transformers before installing require hooks ([#7752](https://togithub.com/facebook/jest/pull/7752)) - `[jest-cli]` Handle missing `numTodoTests` in test results ([#7779](https://togithub.com/facebook/jest/pull/7779)) - `[jest-runtime]` Exclude setup/teardown files from coverage report ([#7790](https://togithub.com/facebook/jest/pull/7790)) - `[babel-jest]` Throw an error if `babel-jest` tries to transform a file ignored by Babel ([#7797](https://togithub.com/facebook/jest/pull/7797)) - `[babel-plugin-jest-hoist]` Ignore TS type references when looking for out-of-scope references ([#7799](https://togithub.com/facebook/jest/pull/7799)) - `[expect]` fixed asymmetrical equality of cyclic objects ([#7730](https://togithub.com/facebook/jest/pull/7730)) ##### Chore & Maintenance - `[jest]` Update jest-junit to ^6.2.1 ([#7739](https://togithub.com/facebook/jest/pull/7739)) - `[website]` Fix broken help link on homepage ([#7706](https://togithub.com/facebook/jest/pull/7706)) - `[docs]` Changed Babel setup documentation to correctly compile `async/await` ([#7701](https://togithub.com/facebook/jest/pull/7701)) ### [`v24.0.0`](https://togithub.com/facebook/jest/blob/master/CHANGELOG.md#2400) [Compare Source](https://togithub.com/facebook/jest/compare/v23.6.0...v24.0.0) ##### Features - `[jest-each]` [**BREAKING**] Add primitive pretty printing for interpolated titles ([#7694](https://togithub.com/facebook/jest/pull/7694)) - `[jest-runtime]` Add `jest.isolateModules` for scoped module initialization ([#6701](https://togithub.com/facebook/jest/pull/6701)) - `[jest-diff]` [**BREAKING**] Support diffing numbers and booleans instead of returning null for different ones ([#7605](https://togithub.com/facebook/jest/pull/7605)) - `[jest-diff]` [**BREAKING**] Replace `diff` with `diff-sequences` package ([#6961](https://togithub.com/facebook/jest/pull/6961)) - `[jest-cli]` [**BREAKING**] Only set error process error codes when they are non-zero ([#7363](https://togithub.com/facebook/jest/pull/7363)) - `[jest-config]` [**BREAKING**] Deprecate `setupTestFrameworkScriptFile` in favor of new `setupFilesAfterEnv` ([#7119](https://togithub.com/facebook/jest/pull/7119)) - `[jest-worker]` [**BREAKING**] Add functionality to call a `setup` method in the worker before the first call and a `teardown` method when ending the farm ([#7014](https://togithub.com/facebook/jest/pull/7014)) - `[jest-config]` [**BREAKING**] Set default `notifyMode` to `failure-change` ([#7024](https://togithub.com/facebook/jest/pull/7024)) - `[jest-haste-map]` [**BREAKING**] Remove support for `@providesModule` ([#6104](https://togithub.com/facebook/jest/pull/6104)) - `[jest-haste-map]` [**BREAKING**] Replace internal data structures to improve performance ([#6960](https://togithub.com/facebook/jest/pull/6960)) - `[jest-haste-map]` [**BREAKING**] Use relative paths to allow remote caching ([#7020](https://togithub.com/facebook/jest/pull/7020)) - `[jest-haste-map]` [**BREAKING**] Remove name from hash in `HasteMap.getCacheFilePath` ([#7218](https://togithub.com/facebook/jest/pull/7218)) - `[babel-preset-jest]` [**BREAKING**] Export a function instead of an object for Babel 7 compatibility ([#7203](https://togithub.com/facebook/jest/pull/7203)) - `[jest-haste-map]` [**BREAKING**] Expose relative paths when getting the file iterator ([#7321](https://togithub.com/facebook/jest/pull/7321)) - `[jest-cli]` [**BREAKING**] Run code transforms over `global{Setup,Teardown}` ([#7562](https://togithub.com/facebook/jest/pull/7562)) - `[jest-haste-map]` Add `hasteFS.getSize(path)` ([#7580](https://togithub.com/facebook/jest/pull/7580)) - `[jest-cli]` Print version ending in `-dev` when running a local Jest clone ([#7582](https://togithub.com/facebook/jest/pull/7582)) - `[jest-cli]` Add Support for `globalSetup` and `globalTeardown` in projects ([#6865](https://togithub.com/facebook/jest/pull/6865)) - `[jest-runtime]` Add `extraGlobals` to config to load extra global variables into the execution vm ([#7454](https://togithub.com/facebook/jest/pull/7454)) - `[jest-util]` Export `specialChars` containing Unicode characters and ANSI escapes for console output ([#7532](https://togithub.com/facebook/jest/pull/7532)) - `[jest-config]` Handle typescript (`ts` and `tsx`) by default ([#7533](https://togithub.com/facebook/jest/pull/7533)) - `[jest-validate]` Add support for comments in `package.json` using a `"//"` key ([#7295](https://togithub.com/facebook/jest/pull/7295)) - `[jest-config]` Add shorthand for watch plugins and runners ([#7213](https://togithub.com/facebook/jest/pull/7213)) - `[jest-jasmine2/jest-circus/jest-cli]` Add test.todo ([#6996](https://togithub.com/facebook/jest/pull/6996)) - `[pretty-format]` Option to not escape strings in diff messages ([#5661](https://togithub.com/facebook/jest/pull/5661)) - `[jest-haste-map]` Add `getFileIterator` to `HasteFS` for faster file iteration ([#7010](https://togithub.com/facebook/jest/pull/7010)) - `[jest-config]` Add `readConfigs` function, previously in `jest-cli` ([#7096](https://togithub.com/facebook/jest/pull/7096)) - `[jest-snapshot]` Enable configurable snapshot paths ([#6143](https://togithub.com/facebook/jest/pull/6143)) - `[pretty-format]` Support HTMLCollection and NodeList in DOMCollection plugin ([#7125](https://togithub.com/facebook/jest/pull/7125)) - `[jest-runtime]` Pass the normalized configuration to script transformers ([#7148](https://togithub.com/facebook/jest/pull/7148)) - `[expect]` Improve report when assertion fails, part 3 ([#7152](https://togithub.com/facebook/jest/pull/7152)) - `[jest-runtime]` If `require` fails without a file extension, print all files that match with one ([#7160](https://togithub.com/facebook/jest/pull/7160)) - `[jest-haste-map]` Make `ignorePattern` optional ([#7166](https://togithub.com/facebook/jest/pull/7166)) - `[jest-haste-map]` Add `getCacheFilePath` to get the path to the cache file for a `HasteMap` instance ([#7217](https://togithub.com/facebook/jest/pull/7217)) - `[jest-runtime]` Remove `cacheDirectory` from `ignorePattern` for `HasteMap` if not necessary ([#7166](https://togithub.com/facebook/jest/pull/7166)) - `[jest-validate]` Add syntax to validate multiple permitted types ([#7207](https://togithub.com/facebook/jest/pull/7207)) - `[jest-config]` Accept an array as as well as a string for `testRegex` ([#7209][#7209](https://togithub.com/facebook/jest/pull/7209))) - `[expect/jest-matcher-utils]` Improve report when assertion fails, part 4 ([#7241](https://togithub.com/facebook/jest/pull/7241)) - `[expect/jest-matcher-utils]` Improve report when assertion fails, part 5 ([#7557](https://togithub.com/facebook/jest/pull/7557)) - `[expect]` Check constructor equality in .toStrictEqual() ([#7005](https://togithub.com/facebook/jest/pull/7005)) - `[jest-util]` Add `jest.getTimerCount()` to get the count of scheduled fake timers ([#7285](https://togithub.com/facebook/jest/pull/7285)) - `[jest-config]` Add `dependencyExtractor` option to use a custom module to extract dependencies from files ([#7313](https://togithub.com/facebook/jest/pull/7313), [#7349](https://togithub.com/facebook/jest/pull/7349), [#7350](https://togithub.com/facebook/jest/pull/7350), [#7362](https://togithub.com/facebook/jest/pull/7362)) - `[jest-haste-map]` Accept a `getCacheKey` method in `hasteImplModulePath` modules to reset the cache when the logic changes ([#7350](https://togithub.com/facebook/jest/pull/7350)) - `[jest-config]` Add `haste.computeSha1` option to compute the sha-1 of the files in the haste map ([#7345](https://togithub.com/facebook/jest/pull/7345)) - `[expect]` `expect(Infinity).toBeCloseTo(Infinity)` Treats `Infinity` as equal in toBeCloseTo matcher ([#7405](https://togithub.com/facebook/jest/pull/7405)) - `[jest-worker]` Add node worker-thread support to jest-worker ([#7408](https://togithub.com/facebook/jest/pull/7408)) - `[jest-config]` Allow `bail` setting to be configured with a number allowing tests to abort after `n` of failures ([#7335](https://togithub.com/facebook/jest/pull/7335)) - `[jest-config]` Allow % based configuration of `--max-workers` ([#7494](https://togithub.com/facebook/jest/pull/7494)) - `[jest-runner]` Instantiate the test environment class with the current `testPath` ([#7442](https://togithub.com/facebook/jest/pull/7442)) - `[jest-config]` Always resolve jest-environment-jsdom from jest-config ([#7476](https://togithub.com/facebook/jest/pull/7476)) - `[expect]` Improve report when assertion fails, part 6 ([#7621](https://togithub.com/facebook/jest/pull/7621)) - `[jest-worker]` Add `enableWorkerThreads` option to explicitly opt-in to `worker_threads` if available ([#7681](https://togithub.com/facebook/jest/pull/7681)) ##### Fixes - `[expect]` Accept inherited properties in `toHaveProperty` matcher ([#7686](https://togithub.com/facebook/jest/pull/7686)) - `[jest-diff]` Do not claim that `-0` and `0` have no visual difference ([#7605](https://togithub.com/facebook/jest/pull/7605)) - `[jest-mock]` Fix automock for numeric function names ([#7653](https://togithub.com/facebook/jest/pull/7653)) - `[jest-config]` Ensure `existsSync` is only called with a string parameter ([#7607](https://togithub.com/facebook/jest/pull/7607)) - `[expect]` `toStrictEqual` considers sparseness of arrays. ([#7591](https://togithub.com/facebook/jest/pull/7591)) - `[jest-cli]` Fix empty coverage data for untested files ([#7388](https://togithub.com/facebook/jest/pull/7388)) - `[jest-cli]` [**BREAKING**] Do not use `text-summary` coverage reporter by default if other reporters are configured ([#7058](https://togithub.com/facebook/jest/pull/7058)) - `[jest-mock]` [**BREAKING**] Fix bugs with mock/spy result tracking of recursive functions ([#6381](https://togithub.com/facebook/jest/pull/6381)) - `[jest-haste-map]` [**BREAKING**] Recover files correctly after haste name collisions are fixed ([#7329](https://togithub.com/facebook/jest/pull/7329)) - `[pretty-format]` [**BREAKING**] Omit non-enumerable symbol properties ([#7448](https://togithub.com/facebook/jest/pull/7448)) - `[*]` [**BREAKING**] Upgrade to Babel 7, dropping support for Babel 6 ([#7016](https://togithub.com/facebook/jest/pull/7016)) - `[jest-cli]` Avoid watch mode causing bad terminal behavior in some cases ([#7523](https://togithub.com/facebook/jest/pull/7523)) - `[jest-runner/jest-worker]` Fix missing console output in verbose mode ([#6871](https://togithub.com/facebook/jest/pull/6871)) - `[expect]` Standardize file naming in `expect` ([#7306](https://togithub.com/facebook/jest/pull/7306)) - `[jest-each]` Add empty array validation check ([#7249](https://togithub.com/facebook/jest/pull/7249)) - `[jest-cli]` Interrupt tests if interactive watch plugin key is pressed ([#7222](https://togithub.com/facebook/jest/pull/7222)) - `[jest-each]` Add each array validation check ([#7033](https://togithub.com/facebook/jest/pull/7033)) - `[jest-haste-map]` Do not visit again files with the same sha-1 ([#6990](https://togithub.com/facebook/jest/pull/6990)) - `[jest-jasmine2]` Fix memory leak in Error objects hold by the framework ([#6965](https://togithub.com/facebook/jest/pull/6965)) - `[jest-haste-map]` Fixed Haste whitelist generation for scoped modules on Windows ([#6980](https://togithub.com/facebook/jest/pull/6980)) - `[jest-mock]` Fix inheritance of static properties and methods in mocks ([#7003](https://togithub.com/facebook/jest/pull/7003)) - `[jest-mock]` Fix mocking objects without `Object.prototype` in their prototype chain ([#7003](https://togithub.com/facebook/jest/pull/7003)) - `[jest-mock]` Check `_isMockFunction` is true rather than truthy on potential mocks ([#7017](https://togithub.com/facebook/jest/pull/7017)) - `[jest-cli]` Update jest-cli to show git ref in message when using `changedSince` ([#7028](https://togithub.com/facebook/jest/pull/7028)) - `[jest-jasmine2`] Fix crash when test return Promise rejected with null ([#7049](https://togithub.com/facebook/jest/pull/7049)) - `[jest-runtime]` Check `_isMockFunction` is true rather than truthy on potential global mocks ([#7017](https://togithub.com/facebook/jest/pull/7017)) - `[jest-jasmine]` Show proper error message from async `assert` errors ([#6821](https://togithub.com/facebook/jest/pull/6821)) - `[jest-jasmine2]` Better error message when a describe block is empty ([#6372](https://togithub.com/facebook/jest/pull/6372)) - `[jest-jasmine2]` Pending calls inside async tests are reported as pending not failed ([#6782](https://togithub.com/facebook/jest/pull/6782)) - `[jest-circus]` Better error message when a describe block is empty ([#6372](https://togithub.com/facebook/jest/pull/6372)) - `[jest-jasmine2]` Add missing testLocationResults for `xit` and `fit` ([#6482](https://togithub.com/facebook/jest/pull/6482)) - `[expect]` Return false from asymmetric matchers if received value isn’t string ([#7107](https://togithub.com/facebook/jest/pull/7107)) - `[jest-cli]` Fix unhandled error when a bad revision is provided to `changedSince` ([#7115](https://togithub.com/facebook/jest/pull/7115)) - `[jest-config]` Moved dynamically assigned `cwd` from `jest-cli` to default configuration in `jest-config` ([#7146](https://togithub.com/facebook/jest/pull/7146)) - `[jest-config]` Fix `getMaxWorkers` on termux ([#7154](https://togithub.com/facebook/jest/pull/7154)) - `[jest-runtime]` Throw an explicit error if `js` is missing from `moduleFileExtensions` ([#7160](https://togithub.com/facebook/jest/pull/7160)) - `[jest-runtime]` Fix missing coverage when using negative glob pattern in `testMatch` ([#7170](https://togithub.com/facebook/jest/pull/7170)) - `[*]` Ensure `maxWorkers` is at least 1 (was 0 in some cases where there was only 1 CPU) ([#7182](https://togithub.com/facebook/jest/pull/7182)) - `[jest-runtime]` Fix transform cache invalidation when requiring a test file from multiple projects ([#7186](https://togithub.com/facebook/jest/pull/7186)) - `[jest-changed-files]` Return correctly the changed files when using `lastCommit=true` on Mercurial repositories ([#7228](https://togithub.com/facebook/jest/pull/7228)) - `[babel-jest]` Cache includes babel environment variables ([#7239](https://togithub.com/facebook/jest/pull/7239)) - `[jest-config]` Use strings instead of `RegExp` instances in normalized configuration ([#7251](https://togithub.com/facebook/jest/pull/7251)) - `[jest-circus]` Make sure to display real duration even if time is mocked ([#7264](https://togithub.com/facebook/jest/pull/7264)) - `[expect]` Improves the failing message for `toStrictEqual` matcher. ([#7224](https://togithub.com/facebook/jest/pull/7224)) - `[expect]` Improves the failing message for `toEqual` matcher. ([#7325](https://togithub.com/facebook/jest/pull/7325)) - `[jest-resolve]` Fix not being able to resolve path to mapped file with custom platform ([#7312](https://togithub.com/facebook/jest/pull/7312)) - `[jest-message-util]` Improve parsing of error messages for unusually formatted stack traces ([#7319](https://togithub.com/facebook/jest/pull/7319)) - `[jest-runtime]` Ensure error message text is not lost on errors with code frames ([#7319](https://togithub.com/facebook/jest/pull/7319)) - `[jest-haste-map]` Fix to resolve path that is start with words same as rootDir ([#7324](https://togithub.com/facebook/jest/pull/7324)) - `[expect]` Fix toMatchObject matcher when used with `Object.create(null)` ([#7334](https://togithub.com/facebook/jest/pull/7334)) - `[jest-haste-map]` Remove legacy condition for duplicate module detection ([#7333](https://togithub.com/facebook/jest/pull/7333)) - `[jest-haste-map]` Fix `require` detection with trailing commas and ignore `import typeof` modules ([#7385](https://togithub.com/facebook/jest/pull/7385)) - `[jest-cli]` Fix to set prettierPath via config file ([#7412](https://togithub.com/facebook/jest/pull/7412)) - `[expect]` Test more precisely for class instance getters ([#7477](https://togithub.com/facebook/jest/pull/7477)) - `[jest-cli]` Support dashed args ([#7497](https://togithub.com/facebook/jest/pull/7497)) - `[jest-cli]` Fix to run in band tests if watch mode enable when runInBand arg used ([#7518](https://togithub.com/facebook/jest/pull/7518)) - `[jest-runtime]` Fix mistake as test files when run coverage issue. ([#7506](https://togithub.com/facebook/jest/pull/7506)) - `[jest-cli]` print info about passWithNoTests flag ([#7309](https://togithub.com/facebook/jest/pull/7309)) - `[pretty-format]` Omit unnecessary symbol filter for object keys ([#7457](https://togithub.com/facebook/jest/pull/7457)) - `[jest-runtime]` Fix `requireActual` on node_modules with mock present ([#7404](https://togithub.com/facebook/jest/pull/7404)) - `[jest-resolve]` Fix `isBuiltinModule` to support versions of node without `module.builtinModules` ([#7565](https://togithub.com/facebook/jest/pull/7565)) - `[babel-jest]` Set `cwd` to be resilient to it changing during the runtime of the tests ([#7574](https://togithub.com/facebook/jest/pull/7574)) - `[jest-snapshot]` Write and read snapshots from disk even if `fs` is mocked ([#7080](https://togithub.com/facebook/jest/pull/7080)) - `[jest-config]` Normalize `config.cwd` and `config.rootDir` using \`realpath ([#7598](https://togithub.com/facebook/jest/pull/7598)) - `[jest-environment-node]` Fix buffer property is not ArrayBuffer issue. ([#7626](https://togithub.com/facebook/jest/pull/7626)) - `[babel-plugin-jest-hoist]` Ignore TS type annotations when looking for out-of-scope references ([#7641](https://togithub.com/facebook/jest/pull/7641)) - `[jest-config]` Add name to project if one does not exist to pick correct resolver ([#5862](https://togithub.com/facebook/jest/pull/5862)) - `[jest-runtime]` Pass `watchPathIgnorePatterns` to Haste instance ([#7585](https://togithub.com/facebook/jest/pull/7585)) - `[jest-runtime]` Resolve mock files via Haste when using `require.resolve` ([#7687](https://togithub.com/facebook/jest/pull/7687)) ##### Chore & Maintenance - `[*]` [**BREAKING**] Require Node.js 6+ for all packages ([#7258](https://togithub.com/facebook/jest/pull/7258)) - `[jest-util]` [**BREAKING**] Remove long-deprecated globals for fake timers ([#7285](https://togithub.com/facebook/jest/pull/7285)) - `[*]` [**BREAKING**] Upgrade to Micromatch 3 ([#6650](https://togithub.com/facebook/jest/pull/6650)) - `[*]` [**BREAKING**] Remove regenerator-runtime injection ([#7595](https://togithub.com/facebook/jest/pull/7595)) - `[jest-worker]` Disable `worker_threads` to avoid issues with libraries to ready for it ([#7681](https://togithub.com/facebook/jest/pull/7681)) - `[docs]` Fix message property in custom matcher example to return a function instead of a constant. ([#7426](https://togithub.com/facebook/jest/pull/7426)) - `[jest-circus]` Standardize file naming in `jest-circus` ([#7301](https://togithub.com/facebook/jest/pull/7301)) - `[docs]` Add synchronous test.each setup ([#7150](https://togithub.com/facebook/jest/pull/7150)) - `[docs]` Add `this.extend` to the Custom Matchers API reference ([#7130](https://togithub.com/facebook/jest/pull/7130)) - `[docs]` Fix default value for `coverageReporters` value in configuration docs ([#7126](https://togithub.com/facebook/jest/pull/7126)) - `[docs]` Add link for jest-extended in expect docs ([#7078](https://togithub.com/facebook/jest/pull/7078)) - `[jest-util]` Add ErrorWithStack class ([#7067](https://togithub.com/facebook/jest/pull/7067)) - `[docs]` Document `--runTestsByPath` CLI parameter ([#7046](https://togithub.com/facebook/jest/pull/7046)) - `[docs]` Fix babel-core installation instructions ([#6745](https://togithub.com/facebook/jest/pull/6745)) - `[docs]` Explain how to rewrite assertions to avoid large irrelevant diff ([#6971](https://togithub.com/facebook/jest/pull/6971)) - `[examples]` add example using Babel 7 ([#6983](https://togithub.com/facebook/jest/pull/6983)) - `[docs]` Replace shallow equality with referential identity in `ExpectAPI.md` ([#6991](https://togithub.com/facebook/jest/pull/6991)) - `[jest-changed-files]` Refactor to use `execa` over `child_process` ([#6987](https://togithub.com/facebook/jest/pull/6987)) - `[*]` Bump dated dependencies ([#6978](https://togithub.com/facebook/jest/pull/6978)) - `[scripts]` Don’t make empty sub-folders for ignored files in build folder ([#7001](https://togithub.com/facebook/jest/pull/7001)) - `[docs]` Add missing export statement in `puppeteer_environment.js` under `docs/Puppeteer.md` ([#7127](https://togithub.com/facebook/jest/pull/7127)) - `[docs]` Removed useless expect.assertions in `TestingAsyncCode.md` ([#7131](https://togithub.com/facebook/jest/pull/7131)) - `[docs]` Remove references to `@providesModule` which isn't supported anymore ([#7147](https://togithub.com/facebook/jest/pull/7147)) - `[docs]` Update `setupFiles` documentation for clarity ([#7187](https://togithub.com/facebook/jest/pull/7187)) - `[docs]` Change `require.require*` to `jest.require*` ([#7210](https://togithub.com/facebook/jest/pull/7210)) - `[jest-circus]` Add readme.md ([#7198](https://togithub.com/facebook/jest/pull/7198)) - `[jest-editor-support]` Remove from the repository ([#7232](https://togithub.com/facebook/jest/pull/7232)) - `[jest-test-typescript-parser]` Remove from the repository ([#7232](https://togithub.com/facebook/jest/pull/7232)) - `[tests]` Free tests from the dependency on value of FORCE_COLOR ([#6585](https://togithub.com/facebook/jest/pull/6585/files)) - `[*]` Add babel plugin to make sure Jest is unaffected by fake Promise implementations ([#7225](https://togithub.com/facebook/jest/pull/7225)) - `[docs]` Add correct default value for `testUrl` config option ([#7277](https://togithub.com/facebook/jest/pull/7277)) - `[docs]` Remove duplicate code in `MockFunctions` ([#7297](https://togithub.com/facebook/jest/pull/7297)) - `[*]` Add check for Facebook copyright headers on CI ([#7370](https://togithub.com/facebook/jest/pull/7370)) - `[*]` Update Facebook copyright headers ([#7589](https://togithub.com/facebook/jest/pull/7589)) - `[jest-haste-Renovate configuration
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