jest-mock - npm Package Versions

jest-cli 11.0.1, babel-jest 11.0.1

• Added support for Mercurial repositories when using jest -o
• Added mockImplementationOnce API to jest.fn().

jest-cli 11.0.0, babel-jest 11.0.0 (pre-releases 0.9 to 0.10)

• New implementation of node-haste and rewrite of internal module loading and resolution. Fixed both startup and runtime performance. #599
• Jasmine 2 is now the default test runner. To keep using Jasmine 1, put testRunner: "jasmine1" into your configuration.
• Added jest-util, jest-mock, jest-jasmine1, jest-jasmine2, jest-environment-node, jest-environment-jsdom packages.
• Added babel-jest-preset and babel-jest as packages. babel-jest is now being auto-detected.
• Added babel-plugin-jest-hoist which hoists jest.unmock, jest.mock and the new jest.enableAutomock and jest.disableAutomock API.
• Improved babel-jest integration and react-native testing.
• Improved code coverage reporting when using babel-jest.
• Added the jest.mock('moduleName', moduleFactory) feature. jest.mock now gets hoisted by default. jest.doMock was added to explicitly mock a module without the hoisting feature of babel-jest.
• Updated jsdom to 8.3.x.
• Improved responsiveness of the system while using --watch.
• Clear the terminal window when using --watch.
• By default, --watch will now only runs tests related to changed files. --watch=all can be used to run all tests on file system changes.
• Debounce --watch re-runs to not trigger test runs during a branch switch in version control.
• Added jest.fn() and jest.fn(implementation) as convenient shortcuts for jest.genMockFunction() and jest.genMockFunction().mockImplementation().
• Added an automock option to turn off automocking globally.
• Added a "no tests found" message if no tests can be found.
• Jest sets process.NODE_ENV to test unless otherwise specified.
• Fixed moduleNameMapper config option when used with paths.
• Fixed an error with Jasmine 2 and tests that throw 'string errors'.
• Fixed issues with unmocking symlinked module names.
• Fixed mocking of boolean values.
• Fixed mocking of fields that start with an underscore ("private fields").
• Fixed unmocking behavior with npm3.
• Fixed and improved --onlyChanged option.
• Fixed support for running Jest as a git submodule.
• Improved verbose logger output
• Fixed test runtime error reporting and stack traces.
• Improved toBeCalled Jasmine 2 custom matcher messages.
• Improved error reporting when a syntax error occurs.
• Renamed HasteModuleLoader to Runtime.
• Jest now properly reports pending tests disabled with xit and xdescribe.
• Removed preprocessCachingDisabled config option.
• Added a testEnvironment option to customize the sandbox environment.
• Added support for @scoped/name npm packages.
• Added an integration test runner for Jest that runs all tests for examples and packages.

29.0.3

Features

• [@jest/environment, jest-runtime] Allow passing a generic type argument to jest.createMockFromModule<T>() method (#13202)
• [expect] Expose ExpectationResult type (#13240)
• [jest-snapshot] Expose Context type (#13240)
• [@jest/globals] Add jest.Mock type helper (#13235)

Fixes

• [jest-core] Capture execError during TestScheduler.scheduleTests and dispatch to reporters (#13203)
• [jest-resolve] Make sure to resolve module paths after looking at exports (#13242)
• [jest-resolve] Improve error on module not found deep in the require stack (#8704)
• [jest-snapshot] Fix typings of snapshot matchers (#13240)

Chore & Maintenance

• [*] Fix inconsistent workspace prefixes (#13217)
• [jest-haste-map] Expose a minimal public API to TypeScript (#13023)

jest 21.0.0

• Add --changedFilesWithAncestor (#4070)

• Add --findRelatedFiles (#4131)

• Add --onlyChanged tests (#3977)

• Add contextLines option to jest-diff (#4152)

• Add alternative serialize API for pretty-format plugins (#4114)

• Add displayName to MPR (#4327)

• Add displayName to TestResult (#4408)

• Add es5 build of pretty-format (#4075)

• Add extra info to no tests for changed files message (#4188)

• Add fake chalk in browser builds in order to support IE10 (#4367)

• Add jest.requireActual (#4260)

• Add maxWorkers to globalConfig (#4005)

• Add skipped tests support for jest-editor-support (#4346)

• Add source map support for better debugging experience (#3738)

• Add support for Error objects in toMatchObject (#4339)

• Add support for Immutable.Record in pretty-format (#3678)

• Add tests for extract_requires on export types (#4080)

• Add that toMatchObject can match arrays (#3994)

• Add watchPathIgnorePatterns to exclude paths to trigger test re-run in watch mode (#4331)

• Adding ancestorTitles property to JSON test output (#4293)

• Allow custom resolver to be used with[out] moduleNameMapper (#4174)

• Avoid parsing .require(…) method calls (#3777)

• Avoid unnecessary function declarations and call in pretty-format (#3962)

• Avoid writing to stdout in default reporter if --json is enabled. Fixes #3941 (#3945)

• Better error handling for --config (#4230)

• Call consistent pretty-format plugins within Jest (#3800)

• Change babel-core to peerDependency for compatibility with Babel 7 (#4162)

• Change Promise detection code in jest-circus to support non-global Promise implementations (#4375)

• Changed files eager loading (#3979)

• Check whether we should output to stdout or stderr (#3953)

• Clarify what objects toContain and toContainEqual can be used on (#4307)

• Clean up resolve() logic. Provide useful names for variables and functions. Test that a directory exists before attempting to resolve files within it. (#4325)

• cleanupStackTrace (#3696)

• compare objects with Symbol keys (#3437)

• Complain if expect is passed multiple arguments (#4237)

• Completes nodeCrawl with empty roots (#3776)

• Consistent naming of files (#3798)

• Convert code base to ESM import (#3778)

• Correct summary message for flag --findRelatedTests. (#4309)

• Coverage thresholds can be set up for individual files (#4185)

• custom reporter error handling (#4051)

• Define separate type for pretty-format plugin Options (#3802)

• Delete confusing async keyword (#3679)

• Delete redundant branch in ReactElement and HTMLElement plugins (#3731)

• Don't format node assert errors when there's no 'assert' module (#4376)

• Don't print test summary in --silent (#4106)

• Don't try to build ghost packages (#3934)

• Escape double quotes in attribute values in HTMLElement plugin (#3797)

• Explain how to clear the cache (#4232)

• Factor out common code for collections in pretty-format (#4184)

• Factor out common code for markup in React plugins (#4171)

• Feature/internal resolve (#4315)

• Fix --logHeapUsage (#4176)

• Fix --showConfig to show all project configs (#4078)

• Fix --watchAll (#4254)

• Fix bug when setTimeout is mocked (#3769)

• Fix changedFilesWithAncestor (#4193)

• Fix colors for expected/stored snapshot message (#3702)

• Fix concurrent test failure (#4159)

• Fix for 4286: Compare Maps and Sets by value rather than order (#4303)

• fix forceExit (#4105)

• Fix grammar in React Native docs (#3838)

• Fix inconsistent name of complex values in pretty-format (#4001)

• Fix issue mocking bound method (#3805)

• Fix jest-circus (#4290)

• Fix lint warning in main

  (#4132)

• Fix linting (#3946)

• fix merge conflict (#4144)

• Fix minor typo (#3729)

• fix missing console.log messages (#3895)

• fix mock return value (#3933)

• Fix mocking for modules with folders on windows (#4238)

• Fix NODE_PATH resolving for relative paths (#3616)

• Fix options.moduleNameMapper override order with preset (#3565 (#3689)

• Fix React PropTypes warning in tests for Immutable plugin (#4412)

• Fix regression in mockReturnValueOnce (#3857)

• Fix sample code of mock class constructors (#4115)

• Fix setup-test-framework-test (#3773)

• fix typescript jest test crash (#4363)

• Fix watch mode (#4084)

• Fix Watchman on windows (#4018)

• Fix(babel): Handle ignored files in babel v7 (#4393)

• Fix(babel): Support upcoming beta (#4403)

• Fixed object matcher (#3799)

• Fixes #3820 use extractExpectedAssertionsErrors in jasmine setup

• Flow upgrade (#4355)

• Force message in matchers to always be a function (#3972)

• Format describe and use test instead of it alias (#3792)

• global_config.js for multi-project runner (#4023)

• Handle async errors (#4016)

• Hard-fail if hasteImpl is throwing an error during initialization. (#3812)

• Ignore import type for extract_requires (#4079)

• Ignore indentation of data structures in jest-diff (#3429)

• Implement 'jest.requireMock' (#4292)

• Improve Jest phabricator plugin (#4195)

• Improve Seq and remove newline from non-min empty in Immutable plugin (#4241)

• Improved the jest reporter with snapshot info per test. (#3660)

• Include fullName in formattedAssertion (#4273)

• Integrated with Yarn workspaces (#3906)

• jest --all (#4020)

• jest-circus test failures (#3770)

• jest-circus Timeouts (#3760)

• jest-haste-map: add test case for broken handling of ignore pattern (#4047)

• jest-haste-map: add test+fix for broken platform module support (#3885)

• jest-haste-map: deprecate functional ignorePattern and use it in cache key (#4063)

• jest-haste-map: mock 'fs' with more idiomatic jest.mock() (#4046)

• jest-haste-map: only file IO errors should be silently ignored (#3816)

• jest-haste-map: throw when trying to get a duplicated module (#3976)

• jest-haste-map: watchman crawler: normalize paths (#3887)

• jest-runtime: atomic cache write, and check validity of data (#4088)

• Join lines with newline in jest-diff (#4314)

• Keep ARGV only in CLI files (#4012)

• let transformers adjust cache key based on mapCoverage (#4187)

• Lift requires (#3780)

• Log stack when reporting errors in jest-runtime (#3833)

• Make --listTests return a new line separated list when not using --json (#4229)

• Make build script printing small-terminals-friendly (#3892)

• Make error messages more explicit for toBeCalledWith assertions (#3913)

• Make jest-matcher-utils use ESM exports (#4342)

• Make jest-runner a standalone package. (#4236)

• Make Jest’s Test Runner configurable. (#4240)

• Make listTests always print to console.log (#4391)

• Make providesModuleNodeModules ignore nested node_modules directories

• Make sure function mocks match original arity (#4170)

• Make sure runAllTimers also clears all ticks (#3915)

• Make toBe matcher error message more helpful for objects and arrays (#4277)

• Make useRealTimers play well with timers: fake (#3858)

• Move getType from jest-matcher-utils to separate package (#3559)

• Multiroot jest-change-files (#3969)

• Output created snapshot when using --ci option (#3693)

• Point out you can use matchers in .toMatchObject (#3796)

• Prevent babelrc package import failure on relative current path (#3723)

• Print RDP details for windows builds (#4017)

• Provide better error checking for transformed content (#3807)

• Provide printText and printComment in markup.js for HTMLElement plugin (#4344)

• Provide regex visualization for testRegex (#3758)

• Refactor CLI (#3862)

• Refactor names and delimiters of complex values in pretty-format (#3986)

• Replace concat(Immutable) with Immutable as item of plugins array (#4207)

• Replace Jasmine with jest-circus (#3668)

• Replace match with test and omit redundant String conversion (#4311)

• Replace print with serialize in AsymmetricMatcher plugin (#4173)

• Replace print with serialize in ConvertAnsi plugin (#4225)

• Replace print with serialize in HTMLElement plugin (#4215)

• Replace print with serialize in Immutable plugins (#4189)

• Replace unchanging args with one config arg within pretty-format (#4076)

• Return UNDEFINED for undefined type in ReactElement plugin (#4360)

• Rewrite some read bumps in pretty-format (#4093)

• Run update method before installing JRE on Circle (#4318)

• Separated the snapshot summary creation from the printing to improve testability. (#4373)

• Set coverageDirectory during normalize phase (#3966)

• Setup custom reporters after default reporters (#4053)

• Setup for Circle 2 (#4149)

• Simplify readme (#3790)

• Simplify snapshots definition (#3791)

• skipNodeResolution config option (#3987)

• Small fixes to toHaveProperty docs (#3878)

• Sort attributes by name in HTMLElement plugin (#3783)

• Specify watchPathIgnorePatterns will only be available in Jest 21+ (#4398)

• Split TestRunner off of TestScheduler (#4233)

• Strict and explicit config resolution logic (#4122)

• Support maxDepth option in React plugins (#4208)

• Support SVG elements in HTMLElement plugin (#4335)

• Test empty Immutable collections with {min: false} option (#4121)

• test to debug travis failure in main (#4145)

• testPathPattern message test (#4006)

• Throw Error When Using Nested It Specs (#4039)

• Throw when moduleNameMapper points to inexistent module (#3567)

• Unified 'no tests found' message for non-verbose MPR (#4354)

• Update migration guide with jest-codemods transformers (#4306)

• Use "inputSourceMap" for coverage re-mapping. (#4009)

• Use "verbose" no test found message when there is only one project (#4378)

• Use babel transform to inline all requires (#4340)

• Use eslint plugins to run prettier (#3971)

• Use iterableEquality in spy matchers (#3651)

• Use modern HTML5 <!DOCTYPE> (#3937)

• Wrap Error.captureStackTrace in a try (#4035)

jest 20.0.0

• New --projects option to run one instance of Jest in multiple projects at the same time. (#3400)
• New multi project runner (#3156)
• New --listTests flag. (#3441)
• New --showConfig flag. (#3296)
• New promise support for all expect matchers through .resolves and .rejects. (#3068)
• New expect.hasAssertions() function similar to expect.assertions(). (#3379)
• New this.equals function exposed to custom matchers. (#3469)
• New valid-expect lint rule in eslint-plugin-jest. (#3067)
• New HtmlElement pretty-format plugin. (#3230)
• New Immutable pretty-format plugins. (#2899)
• New test environment per file setting through @jest-environment in the docblock. (#2859)
• New feature that allows every configuration option to be set from the command line. (#3424)
• New feature to add custom reporters to Jest through reporters in the configuration. (#3349)
• New feature to add expected and actual values to AssertionError. (#3217)
• New feature to map code coverage from transformers. (#2290)
• New feature to run untested code coverage in parallel. (#3407)
• New option to define a custom resolver. (#2998)
• New printing support for text and comment nodes in html pretty-format. (#3355)
• New snapshot testing FAQ (#3425)
• New support for custom platforms on jest-haste-map. (#3162)
• New support for mocking native async methods. (#3209)
• New guide on how to use Jest with any JavaScript framework. (#3243)
• New translation system for the Jest website.
• New collapsing watch mode usage prompt after first run. (#3078)
• Breaking Change: Forked Jasmine 2.5 into Jest's own test runner and rewrote large parts of Jasmine. (#3147)
• Breaking Change: Jest does not write new snapshots by default on CI. (#3456)
• Breaking Change: Moved the typescript parser from jest-editor-support into a separate jest-test-typescript-parser package. (#2973)
• Breaking Change: Replaced auto-loading of babel-polyfill with only regenerator-runtime, fixes a major memory leak. (#2755)
• Fixed babel-jest to look up the babel field in package.json as a fallback.
• Fixed jest-editor-support's parser to not crash on incomplete ASTs. (#3259)
• Fixed jest-resolve to use is-builtin-module instead of resolve.isCore. (#2997)
• Fixed jest-snapshot to normalize line endings in the serialize function. (#3002)
• Fixed behavior of --silent flag. (#3003)
• Fixed bug with watchers on macOS causing test to crash. (#2957)
• Fixed CLI notify option not taking precedence over config option. (#3340)
• Fixed detection of the npm client in SummaryReporter to support Yarn. (#3263)
• Fixed done.fail not passing arguments (#3241)
• Fixed fake timers to restore after resetting mocks. (#2467)
• Fixed handling of babylon's parser options in jest-editor-support. (#3344)
• Fixed Jest to properly cache transform results. (#3334)
• Fixed Jest to use human-readable colors for Jest's own snapshots. (#3119)
• Fixed jest-config to use UID for default cache folder. (#3380), (#3387)
• Fixed jest-runtime to expose inner error when it fails to write to the cache. (#3373)
• Fixed lifecycle hooks to make afterAll hooks operate the same as afterEach. (#3275)
• Fixed pretty-format to run plugins before serializing nested basic values. (#3017)
• Fixed return value of mocks so they can explicitly be set to return undefined. (#3354)
• Fixed runner to run tests associated with snapshots when the snapshot changes. (#3025)
• Fixed snapshot serializer require, restructured pretty-format. (#3399)
• Fixed support for Babel 7 in babel-jest. (#3271)
• Fixed testMatch to find tests in .folders. (#3006)
• Fixed testNamePattern and testPathPattern to work better together. (#3327)
• Fixed to show reject reason when expecting resolve. (#3134)
• Fixed toHaveProperty() to use hasOwnProperty from Object (#3410)
• Fixed watch mode's screen clearing. (#2959) (#3294)
• Improved and consolidated Jest's configuration file resolution. (#3472)
• Improved documentation throughout the Jest website.
• Improved documentation to explicitly mention that snapshots must be reviewed. (#3203)
• Improved documentation to make it clear CRA users don't need to add dependencies. (#3312)
• Improved eslint-plugin-jest's handling of expect. (#3306)
• Improved flow-coverage, eslint rules and test coverage within the Jest repository.
• Improved printing of expect.assertions error. (#3033)
• Improved Windows test coverage of Jest.
• Refactored configs & transform (#3376)
• Refactored reporters to pass individual Tests to reporters. (#3289)
• Refactored TestRunner (#3166)
• Refactored watch mode prompts. (#3290)
• Deleted jest-file-exists. (#3105)
• Removed Config type. (#3366)
• Removed all usage of jest-file-exists. (#3101)
• Adopted prettier on the Jest codebase.