29.4.3

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)

29.4.2

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)

29.4.1

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)

29.4.0

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)
• [jest-resolve] Support subpath imports (#13705, #13723, #13777)
• [jest-runtime] Add jest.isolateModulesAsync for scoped module initialization of asynchronous functions (#13680)
• [jest-runtime] Add jest.isEnvironmentTornDown function (#13741)
• [jest-test-result] Added skipped and focused status to FormattedTestResult (#13700)
• [jest-transform] Support for asynchronous createTransformer (#13762)

Fixes

• [jest-environment-node] Fix non-configurable globals (#13687)
• [@jest/expect-utils] toMatchObject should handle Symbol properties (#13639)
• [jest-mock] Fix mockReset and resetAllMocks undefined return value(#13692)
• [jest-resolve] Add global paths to require.resolve.paths (#13633)
• [jest-resolve] Correct node core module detection when using node: specifiers (#13806)
• [jest-runtime] Support WASM files that import JS resources (#13608)
• [jest-runtime] Use the scriptTransformer cache in jest-runner (#13735)
• [jest-runtime] Enforce import assertions when importing JSON in ESM (#12755 & #13805)
• [jest-snapshot] Make sure to import babel outside of the sandbox (#13694)
• [jest-transform] Ensure the correct configuration is passed to preprocessors specified multiple times in the transform option (#13770)

Chore & Maintenance

• [@jest/fake-timers] Update @sinonjs/fake-timers (#13612)
• [docs] Improve custom puppeteer example to prevent worker warnings (#13619)

29.3.1

Fixes

• [jest-config] Do not warn about preset in ProjectConfig (#13583)

Performance

• [jest-transform] Defer creation of cache directory (#13420)

29.3.0

Features

• [jest-runtime] Support WebAssembly (Wasm) imports in ESM modules (#13505)

Fixes

• [jest-config] Add config validation for projects option (#13565)
• [jest-mock] Treat cjs modules as objects so they can be mocked (#13513)
• [jest-worker] Throw an error instead of hanging when jest workers terminate unexpectedly (#13566)

Chore & Maintenance

• [@jest/transform] Update convert-source-map (#13509)
• [docs] Mention toStrictEqual in UsingMatchers docs. (#13560)

29.2.2

Fixes

• [@jest/test-sequencer] Make sure sharding does not produce empty groups (#13476)
• [jest-circus] Test marked as todo are shown as todo when inside a focussed describe (#13504)
• [jest-mock] Ensure mock resolved and rejected values are promises from correct realm (#13503)
• [jest-snapshot] Don't highlight passing asymmetric property matchers in snapshot diff (#13480)

Chore & Maintenance

• [docs] Update link to Jest 28 upgrade guide in error message (#13483)
• [jest-runner, jest-watcher] Update emittery (#13490)

29.2.1

Features

• [@jest/globals, jest-mock] Add jest.Spied* utility types (#13440)

Fixes

• [jest-environment-node] make globalThis.performance writable for Node 19 and fake timers (#13467)
• [jest-mock] Revert #13398 to restore mocking of setters (#13472)

Performance

• [*] Use sha1 instead of sha256 for hashing (#13421)

29.2.0

Features

• [@jest/cli, jest-config] A seed for the test run will be randomly generated, or set by a CLI option (#13400)
• [@jest/cli, jest-config] --show-seed will display the seed value in the report, and can be set via a CLI flag or through the config file (#13400)
• [jest-config] Add readInitialConfig utility function (#13356)
• [jest-core] Allow testResultsProcessor to be async (#13343)
• [@jest/environment, jest-environment-node, jest-environment-jsdom, jest-runtime] Add getSeed() to the jest object (#13400)
• [expect, @jest/expect-utils] Allow isA utility to take a type argument (#13355)
• [expect] Expose AsyncExpectationResult and SyncExpectationResult types (#13411)

Fixes

• [babel-plugin-jest-hoist] Ignore TSTypeQuery when checking for hoisted references (#13367)
• [jest-core] Fix detectOpenHandles false positives for some special objects such as TLSWRAP (#13414)
• [jest-mock] Fix mocking of getters and setters on classes (#13398)
• [jest-reporters] Revert: Transform file paths into hyperlinks (#13399)
• [@jest/types] Infer type of each table correctly when the table is a tuple or array (#13381)
• [@jest/types] Rework typings to allow the *ReturnedWith matchers to be called with no argument (#13385)

Chore & Maintenance

• [*] Update @babel/* deps, resulting in slightly different stack traces for each (#13422)

Performance

• [jest-runner] Do not instrument v8 coverage data if coverage should not be collected (#13282)

29.1.2

Fixes

• [expect, @jest/expect] Revert buggy inference of argument types for *CalledWith and *ReturnedWith matchers introduced in 29.1.0 (#13339)
• [jest-worker] Add missing dependency on jest-util (#13341)