v30.2.0

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Chore & Maintenance

• [*] Update example repo for testing React Native projects (#​15832)
• [*] Update jest-watch-typeahead to v3 (#​15830)

v30.1.3

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Fixes

• Fix unstable_mockModule with node: prefixed core modules.

v30.1.2

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Fixes

• [jest-snapshot-utils] Correct snapshot header regexp to work with newline across OSes (#​15803)

v30.1.1

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Fixes

• [jest-snapshot-utils] Fix deprecated goo.gl snapshot warning not handling Windows end-of-line sequences (#​15800)
• [jest-snapshot-utils] Improve messaging about goo.gl snapshot link change (#​15821)

v30.1.0

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v30.0.5

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Features

• [jest-config] Allow testMatch to take a string value
• [jest-worker] Let workerIdleMemoryLimit accept 0 to always restart worker child processes

Fixes

• [expect] Fix bigint error (#​15702)

v30.0.4

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Features

• [expect] The Inverse type is now exported (#​15714)
• [expect] feat: support async functions in toBe (#​15704)

Fixes

• [jest] jest --onlyFailures --listTests now correctly lists only failed tests (#​15700)
• [jest-snapshot] Handle line endings in snapshots (#​15708)

v30.0.3

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Fixes

• [jest-config] Fix ESM TS config loading in a CJS project (#​15694)
• [jest-core] jest --onlyFailures --listTests now correctly lists only failed tests(#​15700)

Features

• [jest-diff] Show non-printable control characters to diffs (#​15696)

v30.0.2

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Fixes

• [jest-matcher-utils] Make 'deepCyclicCopyObject' safer by setting descriptors to a null-prototype object (#​15689)
• [jest-util] Make garbage collection protection property writable (#​15689)

v30.0.1

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Features

• [jest-resolver] Implement the defaultAsyncResolver (#​15679)

Fixes

• [jest-resolver] Resolve builtin modules correctly (#​15683)
• [jest-environment-node, jest-util] Avoid setting globals cleanup protection symbol when feature is off (#​15684)

Chore & Maintenance

• [*] Remove and deprecate jest-repl package (#​15673)
• [jest-resolver] Replace custom isBuiltinModule with node's isBuiltin (#​15685)

v30.0.0

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Features

• [*] Renamed globalsCleanupMode to globalsCleanup and --waitNextEventLoopTurnForUnhandledRejectionEvents to --waitForUnhandledRejections
• [expect] Add ArrayOf asymmetric matcher for validating array elements. (#​15567)
• [babel-jest] Add option excludeJestPreset to allow opting out of babel-preset-jest (#​15164)
• [expect] Revert #​15038 to fix expect(fn).toHaveBeenCalledWith(expect.objectContaining(...)) when there are multiple calls (#​15508)
• [jest-circus, jest-cli, jest-config] Add waitNextEventLoopTurnForUnhandledRejectionEvents flag to minimise performance impact of correct detection of unhandled promise rejections introduced in #​14315 (#​14681)
• [jest-circus] Add a waitBeforeRetry option to jest.retryTimes (#​14738)
• [jest-circus] Add a retryImmediately option to jest.retryTimes (#​14696)
• [jest-circus, jest-jasmine2] Allow setupFilesAfterEnv to export an async function (#​10962)
• [jest-circus, jest-test-result] Add startedAt timestamp in TestCaseResultObject within onTestCaseResult (#​15145)
• [jest-cli] Export buildArgv (#​15310)
• [jest-config] [BREAKING] Add mts and cts to default moduleFileExtensions config (#​14369)
• [jest-config] [BREAKING] Update testMatch and testRegex default option for supporting mjs, cjs, mts, and cts (#​14584)
• [jest-config] Loads config file from provided path in package.json (#​14044)
• [jest-config] Allow loading jest.config.cts files (#​14070)
• [jest-config] Show rootDir in error message when a preset fails to load (#​15194)
• [jest-config] Support loading TS config files using esbuild-register via docblock loader (#​15190)
• [jest-config] Allow passing TS config loader options via docblock comment (#​15234)
• [jest-config] If Node is running with type stripping enabled, do not require a TS loader (#​15480)
• [@jest/core] Group together open handles with the same stack trace (#​13417, & #​14789)
• [@jest/core] Add perfStats to surface test setup overhead (#​14622)
• [@jest/core] [BREAKING] Changed --filter to accept an object with shape { filtered: Array<string> } to match documentation (#​13319)
• [@jest/core] Support --outputFile option for --listTests (#​14980)
• [@jest/core] Stringify Errors properly with --json flag (#​15329)
• [@jest/core, @​jest/test-sequencer] [BREAKING] Exposes globalConfig & contexts to TestSequencer (#​14535, & #​14543)
• [jest-each] Introduce %$ option to add number of the test to its title (#​14710)
• [@jest/environment] [BREAKING] Remove deprecated jest.genMockFromModule() (#​15042)
• [@jest/environment] [BREAKING] Remove unnecessary defensive code (#​15045)
• [jest-environment-jsdom] [BREAKING] Upgrade JSDOM to v22 (#​13825)
• [@jest/environment-jsdom-abstract] Introduce new package which abstracts over the jsdom environment, allowing usage of custom versions of JSDOM (#​14717)
• [jest-environment-node] Update jest environment with dispose symbols Symbol (#​14888 & #​14909)
• [expect, @​jest/expect] [BREAKING] Add type inference for function parameters in CalledWith assertions (#​15129)
• [@jest/expect-utils] Properly compare all types of TypedArrays (#​15178)
• [@jest/fake-timers] [BREAKING] Upgrade @sinonjs/fake-timers to v13 (#​14544 & #​15470)
• [@jest/fake-timers] Exposing new modern timers function advanceTimersToFrame() which advances all timers by the needed milliseconds to execute callbacks currently scheduled with requestAnimationFrame (#​14598)
• [jest-matcher-utils] Add SERIALIZABLE_PROPERTIES to allow custom serialization of objects (#​14893)
• [jest-mock] Add support for the Explicit Resource Management proposal to use the using keyword with jest.spyOn(object, methodName) (#​14895)
• [jest-reporters] Add support for DEC mode 2026 (#​15008)
• [jest-resolver] Support file:// URLs as paths (#​15154)
• [jest-resolve,jest-runtime,jest-resolve-dependencies] Pass the conditions when resolving stub modules (#​15489)
• [jest-runtime] Exposing new modern timers function jest.advanceTimersToFrame() from @jest/fake-timers (#​14598)
• [jest-runtime] Support import.meta.filename and import.meta.dirname (available from Node 20.11) (#​14854)
• [jest-runtime] Support import.meta.resolve (#​14930)
• [jest-runtime] [BREAKING] Make it mandatory to pass globalConfig to the Runtime constructor (#​15044)
• [jest-runtime] Add unstable_unmockModule (#​15080)
• [jest-runtime] Add onGenerateMock transformer callback for auto generated callbacks (#​15433 & #​15482)
• [jest-runtime] [BREAKING] Use vm.compileFunction over vm.Script (#​15461)
• [@jest/schemas] Upgrade @sinclair/typebox to v0.34 (#​15450)
• [@jest/types] test.each(): Accept a readonly (as const) table properly (#​14565)
• [@jest/types] Improve argument type inference passed to test and describe callback functions from each tables (#​14920)
• [jest-snapshot] [BREAKING] Add support for Error causes in snapshots (#​13965)
• [jest-snapshot] Support Prettier 3 (#​14566)
• [@jest/util-snapshot] Extract utils used by tooling from jest-snapshot into its own package (#​15095)
• [pretty-format] [BREAKING] Do not render empty string children ('') in React plugin (#​14470)

Fixes

• [expect] Show AggregateError to display (#​15346)
• [*] Replace exit with exit-x (#​15399)
• [babel-plugin-jest-hoist] Use denylist instead of the deprecated blacklist for Babel 8 support (#​14109)
• [babel-plugin-jest-hoist] Do not rely on buggy Babel behaviour (#​15415)
• [expect] Check error instance type for toThrow/toThrowError (#​14576)
• [expect] Improve diff for failing expect.objectContaining (#​15038)
• [expect] Use Array.isArray to check if an array is an Array (#​15101)
• [expect] Fix Error cause assertion errors (#​15339)
• [jest-changed-files] Print underlying errors when VCS commands fail (#​15052)
• [jest-changed-files] Abort sl root call if output resembles a steam locomotive (#​15053)
• [jest-circus] [BREAKING] Prevent false test failures caused by promise rejections handled asynchronously (#​14315)
• [jest-circus] Replace recursive makeTestResults implementation with iterative one (#​14760)
• [jest-circus] Omit expect.hasAssertions() errors if a test already has errors (#​14866)
• [jest-circus, jest-expect, jest-snapshot] Pass test.failing tests when containing failing snapshot matchers (#​14313)
• [jest-circus] Concurrent tests now emit jest circus events at the correct point and in the expected order. (#​15381)
• [jest-cli] [BREAKING] Validate CLI flags that require arguments receives them (#​14783)
• [jest-config] Make sure to respect runInBand option (#​14578)
• [jest-config] Support testTimeout in project config (#​14697)
• [jest-config] Support coverageReporters in project config (#​14697)
• [jest-config] Allow reporters in project config (#​14768)
• [jest-config] Allow Node16/NodeNext/Bundler moduleResolution in project's tsconfig (#​14739)
• [@jest/create-cache-key-function] Correct the return type of createCacheKey (#​15159)
• [jest-each] Allow $keypath templates with null or undefined values (#​14831)
• [@jest/expect-utils] Fix comparison of DataView (#​14408)
• [@jest/expect-utils] [BREAKING] exclude non-enumerable in object matching (#​14670)
• [@jest/expect-utils] Fix comparison of URL (#​14672)
• [@jest/expect-utils] Check Symbol properties in equality (#​14688)
• [@jest/expect-utils] Catch circular references within arrays when matching objects (#​14894)
• [@jest/expect-utils] Fix not addressing to Sets and Maps as objects without keys (#​14873)
• [jest-haste-map] Fix errors or clobbering with multiple hasteImplModulePaths (#​15522)
• [jest-leak-detector] Make leak-detector more aggressive when running GC (#​14526)
• [jest-runtime] Properly handle re-exported native modules in ESM via CJS (#​14589)
• [jest-runtime] Refactor _importCoreModel so required core module is consistent if modified while loading (#​15077)
• [jest-schemas, jest-types] [BREAKING] Fix type of testFailureExitCode config option(#​15232)
• [jest-util] Make sure isInteractive works in a browser (#​14552)
• [pretty-format] [BREAKING] Print ArrayBuffer and DataView correctly (#​14290)
• [pretty-format] Fixed a bug where "anonymous custom elements" were not being printed as expected. (#​15138)
• [jest-cli] When specifying paths on the command line, only match against the relative paths of the test files (#​12519)
  • [BREAKING] Changes testPathPattern configuration option to testPathPatterns, which now takes a list of patterns instead of the regex.
  • [BREAKING] --testPathPattern is now --testPathPatterns
  • [BREAKING] Specifying testPathPatterns when programmatically calling watch must be specified as new TestPathPatterns(patterns), where TestPathPatterns can be imported from @jest/pattern
• [jest-reporters, jest-runner] Unhandled errors without stack get correctly logged to console (#​14619)
• [jest-util] Always load mjs files with import (#​15447)
• [jest-worker] Properly handle a circular reference error when worker tries to send an assertion fails where either the expected or actual value is circular (#​15191)
• [jest-worker] Properly handle a BigInt when worker tries to send an assertion fails where either the expected or actual value is BigInt (#​15191)
• [expect] Resolve issue where ObjectContaining matched non-object values. #​15463.
  • Adds a conditional/check to ensure the argument passed to expect is an object.
  • Add unit tests for new ObjectContaining behavior.
  • Remove invalid/wrong test case assertions for ObjectContaining.
• [jest-worker] Addresses incorrect state on exit (#​15610)

Performance

• [*] [BREAKING] Bundle all of Jest's modules into index.js (#​12348, #​14550 & #​14661)
• [jest-haste-map] Only spawn one process to check for watchman installation (#​14826)
• [jest-runner] Better cleanup source-map-support after test to resolve (minor) memory leak (#​15233)
• [jest-resolver] Migrate resolve and resolve.exports to unrs-resolver (#​15619)
• [jest-circus, jest-environment-node, jest-repl, jest-runner, jest-util] Cleanup global variables on environment teardown to reduce memory leaks (#​15215 & #​15636 & #​15643)

Chore & Maintenance

• [jest-environment-jsdom, jest-environment-jsdom-abstract] Increased version of jsdom to ^26.0.0 (#​15325CVE-2024-37890)
• [*] Increase version of micromatch to ^4.0.7 (#​15082)
• [*] [BREAKING] Drop support for Node.js versions 14, 16, 19, 21 and 23 (#​14460, #​15118, #​15623, #​15640)
• [*] [BREAKING] Drop support for [email protected], minimum version is now 5.4 (#​14542, #​15621)
• [*] Depend on exact versions of monorepo dependencies instead of ^ range (#​14553)
• [*] [BREAKING] Add ESM wrapper for all of Jest's modules (#​14661)
• [*] [BREAKING] Upgrade to glob@10 (#​14509)
• [*] Use TypeError over Error where appropriate (#​14799)
• [docs] Fix typos in CHANGELOG.md and packages/jest-validate/README.md (#​14640)
• [docs] Don't use alias matchers in docs (#​14631)
• [babel-jest, babel-preset-jest] [BREAKING] Increase peer dependency of @babel/core to ^7.11 (#​14109)
• [babel-jest, @​jest/transform] Update babel-plugin-istanbul to v6 (#​15156)
• [babel-plugin-jest-hoist] Move unnecessary dependencies to devDependencies (#​15010)
• [expect] [BREAKING] Remove .toBeCalled(), .toBeCalledTimes(), .toBeCalledWith(), .lastCalledWith(), .nthCalledWith(), .toReturn(), .toReturnTimes(), .toReturnWith(), .lastReturnedWith(), .nthReturnedWith() and .toThrowError() matcher aliases (#​14632)
• [jest-cli, jest-config, @​jest/types] [BREAKING] Remove deprecated --init argument (#​14490)
• [jest-config, @​jest/core, jest-util] Upgrade ci-info (#​14655)
• [jest-mock] [BREAKING] Remove MockFunctionMetadataType, MockFunctionMetadata and SpyInstance types (#​14621)
• [@jest/reporters] Upgrade istanbul-lib-source-maps (#​14924)
• [jest-schemas] Upgrade @sinclair/typebox (#​14775)
• [jest-transform] Upgrade write-file-atomic (#​14274)
• [jest-util] Upgrade picomatch to v4 (#​14653 & #​14885)
• [docs] Append to NODE_OPTIONS, not overwrite ([#​14730](https://redirect.github.com/jestjs/jest/pull/14730))
• [docs] Updated .toHaveBeenCalled() documentation to correctly reflect its functionality (#​14842)
• [docs] Link NestJS documentation on testing with Jest (#​14940)
• [docs] Revised documentation for .toHaveBeenCalled() to accurately depict its functionality. (#​14853)
• [docs] Removed ExpressJS reference link from documentation due to dead link (#​15270)
• [docs] Correct broken links in docs (#​15359)

v29.7.0

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Features

• [create-jest] Add npm init / yarn create initialiser for Jest projects (#​14465)
• [jest-validate] Allow deprecation warnings for unknown options (#​14499)

Fixes

• [jest-resolver] Replace unmatched capture groups in moduleNameMapper with empty string instead of undefined (#​14507)
• [jest-snapshot] Allow for strings as well as template literals in inline snapshots (#​14465)
• [@jest/test-sequencer] Calculate test runtime if perStats.duration is missing (#​14473)

Performance

• [@jest/create-cache-key-function] Cache access of NODE_ENV and BABEL_ENV (#​14455)

Chore & Maintenance

• [jest-cli] Move internal config initialisation logic to the create-jest package (#​14465)

New Contributors

• @​bawjensen made their first contribution in #​14465
• @​malaviya-parth made their first contribution in #​14467
• @​niklasholm made their first contribution in #​14507

Full Changelog: jestjs/jest@v29.6.4...v29.7.0

v29.6.4

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Fixes

• [jest-core] Fix typo in scheduleAndRun performance marker (#​14434)
• [jest-environment-node] Make sure atob and btoa are writeable in Node 20 (#​14446)
• [jest-worker] Additional error wrapper for parentPort.postMessage to fix unhandled DataCloneError. (#​14437)

New Contributors

• @​stanleyume made their first contribution in #​14424
• @​dj-stormtrooper made their first contribution in #​14437
• @​thw0rted made their first contribution in #​14444

Full Changelog: jestjs/jest@v29.6.3...v29.6.4

v29.6.3

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Fixes

• [expect, @​jest/expect-utils] ObjectContaining support symbol as key (#​14414)
• [expect] Remove @types/node from dependencies (#​14385)
• [jest-core] Use workers in watch mode by default to avoid crashes (#​14059 & #​14085).
• [jest-reporters] Update istanbul-lib-instrument dependency to v6. (#​14401)
• [jest-mock] Revert #​13692 as it was a breaking change (#​14429)
• [jest-mock] Revert #​13866 as it was a breaking change (#​14429)
• [jest-mock] Revert #​13867 as it was a breaking change (#​14429)
• [@jest/reporters] Marks Reporter's hooks as optional (#​14433)
• [jest-runtime] Fix dynamic ESM import module bug when loaded module through jest.isolateModulesAsync (#​14397)

Chore & Maintenance

• [jest-changed-files, jest-circus, jest-console, @​jest/core, @​jest/runtime, @​jest/transform] Use invariant and notEmpty from jest-util rather than own internal (#​14366)

New Contributors

• @​karlnorling made their first contribution in #​14401
• @​vinicinbgs made their first contribution in #​14388
• @​panteleevnikita made their first contribution in #​14433

Full Changelog: jestjs/jest@v29.6.2...v29.6.3

v29.6.2

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Fixes

• [jest-circus] Fix snapshot matchers in concurrent tests when nr of tests exceeds maxConcurrency (#​14335)
• [@jest/core] When running global setup and teardown, do not try to change the message property of the thrown error object when the message property is unwritable (#​14113)
• [jest-snapshot] Move @types/prettier from dependencies to devDependencies (#​14328)
• [jest-snapshot] Throw an explicit error if Prettier v3 is used (#​14367)
• [jest-reporters] Add "skipped" and "todo" symbols to Github Actions Reporter (#​14309)

Chore & Maintenance

• [@jest/core] Use pluralize from jest-util rather than own internal (#​14322)

New Contributors

• @​Kloen made their first contribution in #​14328
• @​eryue0220 made their first contribution in #​14322
• @​david-szabo97 made their first contribution in #​14113

Full Changelog: jestjs/jest@v29.6.1...v29.6.2

v29.6.1

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Fixes

• [jest-circus] Revert #​14110 as it was a breaking change (#​14304)

Full Changelog: jestjs/jest@v29.6.0...v29.6.1

v29.6.0

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Features

• [jest-circus, jest-snapshot] Add support for snapshot matchers in concurrent tests (#​14139)
• [jest-cli] Include type definitions to generated config files (#​14078)
• [jest-snapshot] Support arrays as property matchers (#​14025)
• [jest-core, jest-circus, jest-reporter, jest-runner] Added support for reporting about start individual test cases using jest-circus (#​14174)

Fixes

• [jest-circus] Prevent false test failures caused by promise rejections handled asynchronously (#​14110)
• [jest-config] Handle frozen config object (#​14054)
• [jest-config] Allow coverageDirectory and collectCoverageFrom in project config (#​14180)
• [jest-core] Always use workers in watch mode to avoid crashes (#​14059).
• [jest-environment-jsdom, jest-environment-node] Fix assignment of customExportConditions via testEnvironmentOptions when custom env subclass defines a default value (#​13989)
• [jest-matcher-utils] Fix copying value of inherited getters (#​14007)
• [jest-mock] Tweak typings to allow jest.replaceProperty() replace methods (#​14008)
• [jest-mock] Improve user input validation and error messages of spyOn and replaceProperty methods (#​14087)
• [jest-runtime] Bind jest.isolateModulesAsync to this (#​14083)
• [jest-runtime] Forward wrapperLength to the Script constructor as columnOffset for accurate debugging (#​14148)
• [jest-runtime] Guard _isMockFunction access with in (#​14188)
• [jest-snapshot] Fix a potential bug when not using prettier and improve performance (#​14036)
• [@jest/transform] Do not instrument .json modules (#​14048)
• [jest-worker] Restart a shut down worker before sending it a task (#​14015)

Chore & Maintenance

• [*] Update semver dependency to get vulnerability fix (#​14262)
• [docs] Updated documentation for the --runTestsByPath CLI command (#​14004)
• [docs] Updated documentation regarding the synchronous fallback when asynchronous code transforms are unavailable (#​14056)
• [docs] Update jest statistics of use and downloads in website Index.

New Contributors

• @​huntie made their first contribution in #​13989
• @​liammulh made their first contribution in #​14001
• @​BenceSzalai made their first contribution in #​14007
• @​Mike-Dax made their first contribution in #​14056
• @​bakasmarius made their first contribution in #​14025
• @​PeteTheHeat made their first contribution in #​14015
• @​tjenkinson made their first contribution in #​14083
• @​soyjuanmacias made their first contribution in #​14101
• @​bharathkalyans made their first contribution in #​14154
• @​itzjacki made their first contribution in #​14165
• @​DmitryMakhnev made their first contribution in #​14174
• @​BobdenOs made their first contribution in #​14148
• @​william-lai-927 made their first contribution in #​14179
• @​bakamitai456 made their first contribution in #​14045
• @​rbuckton made their first contribution in #​14188
• @​barbados-clemens made their first contribution in #​14180
• @​rburdet made their first contribution in #​14197
• @​cw1997 made their first contribution in #​14184
• @​renovate made their first contribution in #​14209
• @​stekycz made their first contribution in #​14110
• @​ziyad-elabid-nw made their first contribution in #​14262

Full Changelog: jestjs/jest@v29.5.0...v29.6.0

v29.5.0

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Features

• [jest-changed-files] Support Sapling (#​13941)
• [jest-circus, @​jest/cli, jest-config] Add feature to randomize order of tests via CLI flag or through the config file(#​12922)
• [jest-cli, jest-config, @​jest/core, jest-haste-map, @​jest/reporters, jest-runner, jest-runtime, @​jest/types] Add workerThreads configuration option to allow using worker threads for parallelization (#​13939)
• [jest-cli] Export yargsOptions (#​13970)
• [jest-config] Add openHandlesTimeout option to configure possible open handles warning. (#​13875)
• [@jest/create-cache-key-function] Allow passing length argument to createCacheKey() function and set its default value to 16 on Windows (#​13827)
• [jest-message-util] Add support for AggregateError (#​13946 & #​13947)
• [jest-message-util] Add support for Error causes in test and it (#​13935 & #​13966)
• [jest-reporters] Add summaryThreshold option to summary reporter to allow overriding the internal threshold that is used to print the summary of all failed tests when the number of test suites surpasses it (#​13895)
• [jest-runtime] Expose @sinonjs/fake-timers async APIs functions advanceTimersByTimeAsync(msToRun) (tickAsync(msToRun)), advanceTimersToNextTimerAsync(steps) (nextAsync), runAllTimersAsync (runAllAsync), and runOnlyPendingTimersAsync (runToLastAsync) (#​13981)
• [jest-runtime, @​jest/transform] Allow V8 coverage provider to collect coverage from files which were not loaded explicitly (#​13974)
• [jest-snapshot] Add support to cts and mts TypeScript files to inline snapshots (#​13975)
• [jest-worker] Add start method to worker farms (#​13937)
• [jest-worker] Support passing a URL as path to worker (#​13982)

Fixes

• [babel-plugin-jest-hoist] Fix unwanted hoisting of nested jest usages (#​13952)
• [jest-circus] Send test case results for todo tests (#​13915)
• [jest-circus] Update message printed on test timeout (#​13830)
• [jest-circus] Avoid creating the word "testfalse" when takesDoneCallback is false in the message printed on test timeout AND updated timeouts test (#​13954)
• [jest-environment-jsdom] Stop setting document to null on teardown (#​13972)
• [@jest/expect-utils] Update toStrictEqual() to be able to check jest.fn().mock.calls (#​13960)
• [@jest/test-result] Allow TestResultsProcessor type to return a Promise (#​13950)

Chore & Maintenance

• [jest-snapshot] Remove dependency on jest-haste-map (#​13977)

New Contributors

• @​frosas made their first contribution in facebook#13932
• @​akshitsinha made their first contribution in facebook#13915
• @​trajano made their first contribution in facebook#13827
• @​DercilioFontes made their first contribution in facebook#13954
• @​jsnajdr made their first contribution in facebook#13952
• @​SteveFlames made their first contribution in facebook#13895
• @​willc001 made their first contribution in facebook#13970
• @​benjaminhobbs made their first contribution in facebook#13901

Full Changelog: jestjs/jest@v29.4.3...v29.5.0

v29.4.3

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Features

• [expect] Update toThrow() to be able to use error causes (#​13606)
• [jest-core] allow to use workerIdleMemoryLimit with only 1 worker or runInBand option (#​13846)
• [jest-message-util] Add support for error causes (#​13868 & #​13912)
• [jest-runtime] Revert import assertions for JSON modules as it's been relegated to Stage 2 (#​13911)

Fixes

• [@jest/expect-utils] subsetEquality should consider also an object's inherited string keys (#​13824)
• [jest-mock] Clear mock state when jest.restoreAllMocks() is called (#​13867)
• [jest-mock] Prevent mockImplementationOnce and mockReturnValueOnce bleeding into withImplementation (#​13888)
• [jest-mock] Do not restore mocks when jest.resetAllMocks() is called (#​13866)

New Contributors

• @​brodo made their first contribution in facebook#13868
• @​DannyNemer made their first contribution in facebook#13878
• @​ghusse made their first contribution in facebook#13846
• @​broofa made their first contribution in facebook#13911

Full Changelog: jestjs/jest@v29.4.2...v29.4.3

v29.4.2

Compare Source

Features

• [@jest/core] Instrument significant lifecycle events with performance.mark() (#​13859)

Fixes

• [expect, @​jest/expect] Provide type of actual as a generic argument to Matchers to allow better-typed extensions (#​13848)
• [jest-circus] Added explicit mention of test failing because done() is not being called in error message (#​13847)
• [jest-runtime] Handle CJS re-exports of node core modules from ESM (#​13856)
• [jest-transform] Downgrade write-file-atomic to v4 (#​13853)
• [jest-worker] Ignore IPC messages not intended for Jest (#​13543)

Chore & Maintenance

• [*] make sure to exclude .eslintcache from published module (#​13832)
• [docs] Cleanup incorrect links in CHANGELOG.md (#​13857)

New Contributors

• @​benjaminjkraft made their first contribution in facebook#13848
• @​LinusU made their first contribution in facebook#13543
• @​SuperSodaSea made their first contribution in facebook#13857
• @​kowalski made their first contribution in facebook#13856

Full Changelog: jestjs/jest@v29.4.1...v29.4.2

v29.4.1

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Features

• [expect, jest-circus, @​jest/types] Implement numPassingAsserts of testResults to track the number of passing asserts in a test (#​13795)
• [jest-core] Add newlines to JSON output (#​13817)
• [@jest/reporters] Automatic log folding in GitHub Actions Reporter (#​13626)

Fixes

• [@jest/expect-utils] toMatchObject diffs should include Symbol properties (#​13810)
• [jest-runtime] Handle missing replaceProperty (#​13823)
• [@jest/types] Add partial support for done callbacks in typings of each (#​13756)

New Contributors

• @​jessevanassen made their first contribution in facebook#13817
• @​ymqy made their first contribution in facebook#13795
• @​MatteoH2O1999 made their first contribution in facebook#13626

Full Changelog: jestjs/jest@v29.4.0...v29.4.1

v29.4.0

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Features

• [expect, @​jest/expect-utils] Support custom equality testers (#​13654)
• [jest-config, jest-worker] Use os.availableParallelism if available to calculate number of workers to spawn (#​13738)
• [@jest/globals, jest-mock] Add jest.replaceProperty() that replaces property value (#​13496)
• [jest-haste-map] ignore Sapling vcs directories (.sl/) ([#​13674](https://redirect.gi