v4.0.16

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   🐞 Bug Fixes

• Fix browser mode default testTimeout back to 15 seconds  -  by @​hi-ogawa in #​9167 (da0ad)
• Avoid crashing on process.versions stub  -  by @​AriPerkkio in #​9174 (78cfb)
• Reject calling suite function inside test  -  by @​hi-ogawa in #​9198 (1a259)
• Allow inlining fully dynamic import  -  by @​hi-ogawa in #​9137 (56851)
• Fix module graph UI on html reporter with headless browser mode  -  by @​hi-ogawa in #​9219 (60642)
• Log deprecated test.poolOptions if it's set  -  by @​sheremet-va in #​9226 (f7f6a)
• browser:
  • Import recordArtifact from the vitest package  -  by @​macarie in #​9186 (01c56)
  • Fix import.meta.env define  -  by @​hi-ogawa in #​9205 (01a9a)
  • String formatting bug when including placeholders in console.log  -  by @​michael-debs and @​hi-ogawa in #​9030 and #​9131 (84a30)
• coverage:
  • Istanbul untested files source maps are off  -  by @​AriPerkkio in #​9208 (372e8)
• experimental:
  • Export setupEnvironment for custom pools  -  by @​AriPerkkio in #​9187 (5d26b)

    View changes on GitHub

v4.0.15

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   🚀 Experimental Features

• cache: Add opt-out on a plugin level, fix internal root cache  -  by @​sheremet-va in #​9154 (a68f7)
• reporters: Print import duration breakdown  -  by @​sheremet-va in #​9105 (122ff)

   🐞 Bug Fixes

• Keep built-in id as is in bun and deno  -  by @​sheremet-va in #​9117 (075ab)
• Use optimizeDeps.rolldownOptions to fix depreated warning + fix ssr.external: true  -  by @​hi-ogawa in #​9121 (fd8bd)
• Fix external behavior with deps.optimizer  -  by @​hi-ogawa in #​9125 (4c754)
• Very minor typo in "Chrome DevTools Protocol"  -  by @​HowToTestFrontend in #​9146 (20997)
• browser: Run toMatchScreenshot only once when used with expect.element  -  by @​macarie in #​9132 (0d2e7)
• coverage: Istanbul provider to not break source maps  -  by @​AriPerkkio in #​9040 (e4ca9)
• deps: Update dependency tinyexec to v1  -  in #​9122 (fd786)
• docs: Remove --browser.provider from docs  -  by @​sheremet-va in #​9115 (120b3)
• expect: Preserve currentTestName in extended matchers  -  by @​macarie in #​9106 (e4345)
• pool: Terminate workers on CTRL+c forceful exits  -  by @​AriPerkkio in #​9140 (d57d8)
• reporters: Show project in github reporter  -  by @​sheremet-va in #​9138 (bb65e)
• spy: Do not mock overriden method, if parent was automocked  -  by @​sheremet-va in #​9116 (1a246)
• web-worker: MessagePort objects passed to Worker.postMessage work when clone === "native"  -  by @​whitphx in #​9118 (deee8)

    View changes on GitHub

v4.0.14

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   🚀 Experimental Features

• browser: Expose utils.configurePrettyDOM  -  by @​sheremet-va in #​9103 (2cc34)
• runner: Add full names to tasks  -  by @​macarie in #​9087 (821aa)
• ui: Add tabbed failure view for toMatchScreenshot with comparison slider  -  by @​macarie in #​8813 (c37c2)

   🐞 Bug Fixes

• Externalize before caching  -  by @​sheremet-va in #​9077 (e1b2e)
• Collect the duration of external imports  -  by @​sheremet-va in #​9097 (3326c)
• Rename collect to import, remove prepare  -  by @​sheremet-va in #​9091 (1256b)
• browser:
  • Unsubscribe onCancel on rpc destroy  -  by @​AriPerkkio in #​9088 (f5b72)
  • Revert the viewport scaling in non-ui mode #​9018  -  by @​sheremet-va in #​9072 and #​9018 (64502)
• coverage:
  • Invalidate circular modules correctly on rerun with coverage  -  by @​aicest in #​9096 (6f22c)
• expect:
  • Allow function as standard schema  -  by @​hi-ogawa in #​9099 (ed8a2)
• jsdom:
  • Reuse abort signals if possible  -  by @​sheremet-va in #​9090 (2c468)
• pool:
  • Init VITEST_POOL_ID + VITEST_WORKER_ID before environment setup  -  by @​AriPerkkio in #​9085 (37918)
• web-worker:
  • postMessage to send ports to workers  -  by @​whitphx and @​AriPerkkio in #​9078 (9d176)

   🏎 Performance

• Replace debug with obug  -  by @​sxzz and @​AriPerkkio in #​9057 (acc51)

    View changes on GitHub

v4.0.13

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   🐞 Bug Fixes

• types:
  • Don't use type from Vite 7.1  -  by @​sheremet-va in #​9071 (6356b)
  • Don't import node.js dependent types in vitest/browser  -  by @​sheremet-va in #​9068 (332af)

   🏎 Performance

• Avoid fetchModule roundtrip if the module is cached  -  by @​sheremet-va in #​9075 (b27e0)
• experimental: If fsCacheModule is enabled, read from the memory when possible  -  by @​sheremet-va in #​9076 (6b9a1)

    View changes on GitHub

v4.0.12

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   🐞 Bug Fixes

• Inherit fsModuleCachePath by default  -  by @​sheremet-va in #​9063 (9a8bc)
• Don't import from @opentelemetry/api in public types  -  by @​sheremet-va in #​9066 (e944a)

    View changes on GitHub

v4.0.11

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   🚀 Experimental Features

• api: Add extensible test artifact API  -  by @​macarie in #​8987 (77292)
  • See more at https://vitest.dev/api/advanced/artifacts
• expect: Provide task in MatchState  -  by @​macarie in #​9022 (afd1f)
• experimental: Support OpenTelemetry traces  -  by @​sheremet-va in #​8994 (d6d33)
  • See more at https://vitest.dev/guide/open-telemetry

   🏎 Performance

• experimental: Add file system cache  -  by @​sheremet-va in #​9026 (1b147)
  • See more at https://vitest.dev/config/experimental#experimental-fsmodulecache

    View changes on GitHub

v4.0.10

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   🐞 Bug Fixes

• Remove onCancel when worker is terminated  -  by @​sheremet-va in #​9033 (6d7f0)
• browser:
  • Don't scale the iframe if UI is disabled  -  by @​sheremet-va in #​9018 (5406e)
  • Handle dependency stack traces with external source maps. Resolves: #​9003  -  by @​iclectic in #​9016 and #​9003 (57ae5)
• bun:
  • Parsing of stack trace for bun runtime  -  by @​nazarhussain in #​9032 (f3ec6)
• core:
  • Prevent starting new run when cancelling  -  by @​AriPerkkio in #​8991 (eb98d)
• pool:
  • Prevent writing to closed worker  -  by @​AriPerkkio and @​sheremet-va in #​9023 (042c6)
• reporters:
  • Report correct test run duration at the end  -  by @​sheremet-va in #​8969 (bc3a6)
• ui:
  • Use execution time from ws reporter (onFinished)  -  by @​userquin in #​8975 (f56dc)

    View changes on GitHub

v4.0.9

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   🚀 Experimental Features

• expect: Add Set support to toBeOneOf  -  by @​tim-we and @​sheremet-va in #​8906 (a415d)

   🐞 Bug Fixes

• browser: Add favicon icons to the browser mode ui  -  by @​userquin in #​8972 (353ee)
• forks: Increase worker start timeout  -  by @​AriPerkkio in #​9027 (5e750)
• jsdom: Cloned request is an instance of Request  -  by @​sheremet-va in #​8985 (506a9)
• ui: Collect file/suite/test duration correctly  -  by @​userquin in #​8976 (8016d)

    View changes on GitHub

v4.0.8

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   🐞 Bug Fixes

• Workaround noExternal merging bug on Vite 6  -  by @​hi-ogawa in #​8950 (bcb13)
• Missed context.d.ts file  -  by @​termorey in #​8965 (9044d)
• Incorrect error message for non-awaited expect.element()  -  by @​StyleShit in #​8954 (9638d)
• browser: Cleanup frame-ancestors from CSP header at coverage middleware  -  by @​userquin in #​8941 (1f730)
• deps: Update all non-major dependencies  -  by @​sheremet-va in #​8636 (da8b9)
• forks: Do not fail with Windows Defender enabled  -  by @​sheremet-va in #​8967 (c79f4)
• runner: Properly encode Uint8Array body in annotations  -  by @​Livan-pro in #​8951 (997ca)
• spy: Copy static properties if spy is initialised with vi.fn(), fix types for vi.spyOn(obj, class)  -  by @​sheremet-va in #​8956 (75e7f)
• webdriverio: When no argument is passed to the .click interaction command, the webdriver command should also have no argument  -  by @​julienw in #​8937 (069e6)

    View changes on GitHub

v4.0.7

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   🐞 Bug Fixes

• Bind process in case global is overwritten  -  by @​AriPerkkio in #​8916 (6240d)
• Create environment once per worker with isolate: false  -  by @​sheremet-va in #​8915 (c9078)
• Add Locator as a possible element type in toContainElement() matcher  -  by @​vitalybaev in #​8910 and #​8927 (35a27)
• browser: Inherit isolate option, deprecate browser.isolate/browser.fileParallelism  -  by @​sheremet-va in #​8890 (9d2b4)
• cli: Parse --execArgv as array  -  by @​AriPerkkio in #​8924 (751c3)
• jsdom: Support URL.createObjectURL, FormData.set(prop, blob)  -  by @​sheremet-va in #​8935 (a1b73)
• pool: Avoid --require argument when running in deno  -  by @​pi0 in #​8897 (d41fa)
• typecheck: Handle re-runs outside tsc  -  by @​AriPerkkio in #​8920 (fdb2e)

   🏎 Performance

• pool:
  • Sort test files by project by default  -  by @​AriPerkkio in #​8914 (680a6)
• reporters:
  • Optimize getting the tests stats  -  by @​Connormiha in #​8908 (06d62)
  • Remove unnecessary Array.from call  -  by @​Connormiha in #​8907 (b6014)

    View changes on GitHub

v4.0.6

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   🐞 Bug Fixes

• Don't merge errors with different diffs for reporting  -  by @​hi-ogawa in #​8871 (3e19f)
• Do not throw when importing a type from an external package  -  by @​sheremet-va in #​8875 (7e6c3)
• Improve spying types  -  by @​sheremet-va in #​8878 (ca041)
• Reuse the same environment when isolate and fileParallelism are false  -  by @​sheremet-va in #​8889 (31706)
• browser:
  • Support module tracking  -  by @​sheremet-va in #​8877 (9e24a)
  • Ensure setup files are re-evaluated on each test run  -  by @​yjaaidi in #​8883 and #​8884 (f50ea)
• coverage:
  • Prevent filtering out virtual files before remapping to sources  -  by @​AriPerkkio in #​8860 (e3b77)
• happy-dom:
  • Properly teardown additional keys  -  by @​sheremet-va in #​8888 (10a06)
• jsdom:
  • Pass down Node.js FormData to Request  -  by @​sheremet-va in #​8880 (197ca)

    View changes on GitHub

v4.0.5

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   🐞 Bug Fixes

• Respect ssr.noExternal when externalizing dependencies, fix Svelte and Astro  -  by @​sheremet-va in #​8862 (a4f86)
• Allow module in --config  -  by @​sheremet-va in #​8864 (b9521)
• browser: Allow Locator type in selectOptions element parameter  -  by @​rzzf and @​sheremet-va in #​8848 (7ee28)
• module-runner: Don't return node builtins for getBuiltins unconditionally  -  by @​sapphi-red in #​8863 (0e858)
• pool: Rename groupId to groupOrder in error message  -  by @​Yohannfra in #​8856 (b9aab)

   🏎 Performance

• Pass testfiles at once when --no-isolate --maxWorkers=1  -  by @​AriPerkkio in #​8835 (584aa)
• expect: Optimize checking the input type  -  by @​Connormiha in #​8840 (06968)

    View changes on GitHub

v4.0.4

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   🐞 Bug Fixes

• browser:
  • Correct typo  -  by @​benmccann in #​8796 (ede1f)
  • Publish a missing context file for webdriverio  -  by @​sheremet-va in #​8824 (7c7b6)
• mocker:
  • Support mocking builtins without node: prefix  -  by @​sheremet-va in #​8829 (06208)
• pool:
  • Runner's error listener causing MaxListenersExceededWarning  -  by @​AriPerkkio in #​8820 (d1bff)
  • Capture workers stdio to logger  -  by @​AriPerkkio in #​8809 (fb95f)
• spy:
  • Allow classes in vi.mocked utility  -  by @​sheremet-va in #​8839 (f8756)
• worker:
  • Rpc listener leak when isolate: false  -  by @​AriPerkkio in #​8821 (573dc)

   🏎 Performance

• utils: Optimized reducer to avoid creating new objects  -  by @​Connormiha in #​8818 (d19ce)

    View changes on GitHub

v4.0.3

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   🐞 Bug Fixes

• Preserve reporter options from config when CLI reporters override them  -  by @​Copilot and sheremet-va in #​8794 (15552)
• browser: More stable in-source testing validation  -  by @​sheremet-va in #​8793 (62297)
• happy-dom: Support fetch globals  -  by @​sheremet-va in #​8791 (0fb74)
• init: Use correct jsx/tsx extension  -  by @​sheremet-va in #​8792 (abc04)

    View changes on GitHub

v4.0.2

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   🐞 Bug Fixes

• browser:
  • Don't print the deprecation notice in node_modules  -  by @​sheremet-va in #​8779 (588f7)
• pool:
  • Assign envs before running tests to keep in sync with process.env  -  by @​sheremet-va in #​8769 (26ce8)
• spy:
  • Properly inherit implementation's length  -  by @​sheremet-va in #​8778 (d4c2b)
  • Reset spies if both restoreMocks and mockReset are set in the config  -  by @​sheremet-va in #​8781 (2eedb)

    View changes on GitHub

v4.0.1

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   🐞 Bug Fixes

• Move the getBuiltins check  -  by @​sheremet-va in #​8765 (81000)
• pool: Don't teardown the communication channel too soon if something is running after the test  -  by @​sheremet-va in #​8767 (3fae7)

    View changes on GitHub

v4.0.0

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Vitest 4.0 is out!

To stay updated, read our blog post and check the migration guide.

   🚨 Breaking Changes

• Remove 'basic' reporter  -  by @​AriPerkkio in #​7884 (82fcf)
• Simplify default exclude pattern  -  by @​sheremet-va in #​6287 (14c50)
• Remove deprecated getSourceMap  -  by @​sheremet-va in #​8194 (ff934)
• Replace deprecated ErrorWithDiff with TestError  -  by @​sheremet-va in #​8195 (da59e)
• Remove UserConfig type in favor of ViteUserConfig  -  by @​sheremet-va in #​8196 (22f7f)
• Remove deprecated coverage options in favor of vitest/node exports  -  by @​sheremet-va in #​8197 (dc848)
• Remove deprecated internal helpers and environment exports  -  by @​sheremet-va in #​8198 (4703c)
• Remove deprecated typecheck and runner types  -  by @​sheremet-va in #​8199 (89a1c)
• Remove Node types from the main entry point, use vitest/node instead  -  by @​sheremet-va in #​8200 (1e60c)
• Remove support for Vite 5  -  by @​sheremet-va in #​8202 (cb8b0)
• Remove deprecated types  -  by @​sheremet-va in #​8203 (66bee)
• Remove deprecated environmentMatchGlobs and poolMatchGlobs  -  by @​sheremet-va in #​8205 (be11d)
• Remove deprecated workspace option in favor of projects  -  by @​sheremet-va in #​8218 (76fb7)
• Ignore --standalone when CLI filename filter is used  -  by @​AriPerkkio in #​8262 (013bf)
• Use module-runner instead of vite-node  -  by @​sheremet-va and @​AriPerkkio in #​8208 (9be01)
• Rewrite spying implementation to make module mocking more intuitive  -  by @​sheremet-va in #​8363 (9e412)
• Remove deprecated APIs  -  by @​sheremet-va in #​8428 (a1cb9)
• Remove minWorkers and set it automatically to 0 in non watch mode  -  by @​sheremet-va in #​8454 (2c2d1)
• Verbose reporter prints tests in a list, introduce tree reporter  -  by @​sheremet-va and @​AriPerkkio in #​8500 (25fd3)
• Include shadow root contents in pretty-format output  -  by @​wkillerud in #​8545 (9e722)
• Remove deprecated order from test() API  -  by @​sheremet-va in #​8594 (4d419)
• Rewrite pools without tinypool  -  by @​AriPerkkio and @​sheremet-va in #​8705 (4822d)
• browser: Require a provider factory instead of a string  -  by @​sheremet-va in #​8445 (606cb)
• expect: Pass current equality testers to asymmetric matcher  -  by @​hi-ogawa in #​6825 (965ce)
• projects: Allow only files that have "vitest.config" or "vite.config" in the name  -  by @​sheremet-va in #​8542 (304bc)
• reporter: Remove deprecated APIs  -  by @​AriPerkkio and @​sheremet-va in #​8223 (149f8)
• runner: Set mode to todo if no function is passed down to test or describe  -  by @​sheremet-va in #​8346 (1a81c)
• snapshot: Fail test with obsolete snapshot on CI  -  by @​hi-ogawa in #​7963 (4d84f)
• spy: Support spying on classes  -  by @​sheremet-va in #​6160 (abc0d)

   🚀 Features

• Provide entity to onConsoleLog  -  by @​sheremet-va in #​8159 (437d4)
• Add onUnhandledError callback  -  by @​sheremet-va in #​8162 (924cb)
• Add spy option to vi.mockObject  -  by @​rChaoz in #​8285 (81d76)
• Don't use vite-node in coverage packages  -  by @​sheremet-va (ffdb4)
• Clickable dashboard numbers  -  by @​shairez in #​7406 (2344c)
• Display test "path" when filtering  -  by @​userquin in #​8547 (2e491)
• Introduce separate packages for browser mode providers  -  by @​sheremet-va in #​8629 (0dc93)
• Add hooks with type-safe extra context to TestAPI  -  by @​ysfaran in #​8623 (6b21c)
• Support expect.assert for type narrowing  -  by @​sheremet-va in #​8695 (fe589)
• Add displayAnnotations option to github-options  -  by @​sheremet-va in #​8706 (4a66d)
• Add schema validation matchers  -  by @​zirkelc in #​8527 (c0b25)
• Add a way to dump transformed content  -  by @​sheremet-va in #​8711 (931c0)
• api:
  • Expose experimental_parseSpecifications  -  by @​sheremet-va in #​8408 (fdeb2)
  • Expose Vitest watcher  -  by @​sheremet-va in #​8413 (aaa6e)
  • Add enableCoverage and disableCoverage methods  -  by @​sheremet-va and @​AriPerkkio in #​8412 (61eb7)
  • Add getGlobalTestNamePattern method  -  by @​sheremet-va in #​8438 (bdb70)
  • Add relativeModuleId to TestModule  -  by @​sheremet-va in #​8505 (3be09)
  • Add getSeed method  -  by @​sheremet-va in #​8592 (438c4)
• browser:
  • Support toBeInViewport utility method to assert element is in viewport or not  -  by @​Shinyaigeek in #​8234 (ceed5)
  • Add qwik to the vitest init cli command  -  by @​thejackshelton in #​8330 (1638b)
  • Introduce toMatchScreenshot for Visual Regression Testing  -  by @​macarie in #​8041 (d45f9)
  • Add trackUnhandledErrors option  -  by @​sheremet-va in #​8386 (c0ec0)
  • Support iframe locator with playwright provider  -  by @​sheremet-va in #​8016 [(57b2c)](https://redirect.github.com/vitest-dev/vitest/co