vitest

### 🚀 Experimental Features - Support openTelemetry for browser mode - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9180 [ (1ec3a) ](https://github.com/vitest-dev/vitest/commit/1ec3a8b68) - Support TRACEPARENT and TRACESTATE environment variables for OpenTelemetry context propagation - by @Copilot, **hi-ogawa** and @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9295 [ (876cb) ](https://github.com/vitest-dev/vitest/commit/876cb84c2) ### 🐞 Bug Fixes - Improve asymmetric matcher diff readability by unwrapping container matchers - by @Copilot, **sheremet-va**, **hi-ogawa** and @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9330 [ (b2ec7) ](https://github.com/vitest-dev/vitest/commit/b2ec724a8) - Improve runner error when importing outside of test context - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9335 [ (2dd3d) ](https://github.com/vitest-dev/vitest/commit/2dd3dd839) - Replace crypto.randomUUID to allow insecure environments (fix #9… - by @plusgut in https://github.com/vitest-dev/vitest/issues/9339 and https://github.com/vitest-dev/vitest/issues/9 [ (e6a3f) ](https://github.com/vitest-dev/vitest/commit/e6a3f8cc7) - Handle null options in `addEventHandler` #9371 - by @ThibautMarechal in https://github.com/vitest-dev/vitest/issues/9372 and https://github.com/vitest-dev/vitest/issues/9371 [ (40841) ](https://github.com/vitest-dev/vitest/commit/40841ff00) - Typo in browser.provider error - by @deammer in https://github.com/vitest-dev/vitest/issues/9394 [ (4b67f) ](https://github.com/vitest-dev/vitest/commit/4b67fc25a) - **browser**: - Fix `process.env` and `import.meta.env` defines in inline project - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9239 [ (b70c9) ](https://github.com/vitest-dev/vitest/commit/b70c96121) - Fix upload File instance - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9294 [ (b6778) ](https://github.com/vitest-dev/vitest/commit/b67788c69) - Fix invalid project token for artifacts assets - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9321 [ (caa7d) ](https://github.com/vitest-dev/vitest/commit/caa7d73d4) - Log `ErrorEvent.message` when unhandled `ErrorEvent.error` is null - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9322 [ (5d84e) ](https://github.com/vitest-dev/vitest/commit/5d84eeb91) - Support `fileParallelism` on an instance - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9328 [ (15006) ](https://github.com/vitest-dev/vitest/commit/150065459) - **coverage**: - Remove unnecessary `istanbul-lib-source-maps` usage - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/9344 [ (b0940) ](https://github.com/vitest-dev/vitest/commit/b09405375) - Apply patch from istanbuljs/istanbuljs#837 - by @AriPerkkio and **sapphi-red** in https://github.com/vitest-dev/vitest/issues/9413 and https://github.com/vitest-dev/vitest/issues/837 [ (e05ce) ](https://github.com/vitest-dev/vitest/commit/e05cedbf4) - **fsModuleCache**: - Don't store importers in cache - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9422 [ (75136) ](https://github.com/vitest-dev/vitest/commit/751364eec) - Add importers alongside importedModules - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9423 [ (59f92) ](https://github.com/vitest-dev/vitest/commit/59f92d403) - **mocker**: - Fix mock transform with class - by @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9421 [ (d390e) ](https://github.com/vitest-dev/vitest/commit/d390eb527) - **pool**: - Validate environment options when reusing the worker - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9349 [ (a8a88) ](https://github.com/vitest-dev/vitest/commit/a8a8836e3) - Handle worker start failures gracefully - by @AriPerkkio in https://github.com/vitest-dev/vitest/issues/9337 [ (200da) ](https://github.com/vitest-dev/vitest/commit/200dadb32) - **reporter**: - Report test module if it failed to run - by @sheremet-va in https://github.com/vitest-dev/vitest/issues/9272 [ (c7888) ](https://github.com/vitest-dev/vitest/commit/c78882985) - **runner**: - Respect nested test.only within describe.only - by @Ujjwaljain16 in https://github.com/vitest-dev/vitest/issues/9021 and https://github.com/vitest-dev/vitest/issues/9213 [ (55d5d) ](https://github.com/vitest-dev/vitest/commit/55d5dad69) - **typecheck**: - Improve error message when tsc outputs help text - by @Ujjwaljain16 in https://github.com/vitest-dev/vitest/issues/9214 [ (7b10a) ](https://github.com/vitest-dev/vitest/commit/7b10ab4cd) - **ui**: - Detect gzip by magic numbers instead of Content-Type header in html reporter - by @Copilot, **hi-ogawa** and @hi-ogawa in https://github.com/vitest-dev/vitest/issues/9278 [ (dd033) ](https://github.com/vitest-dev/vitest/commit/dd0331632) - **webdriverio**: - Fall back to WebDriver Classic #9244 - by @JustasMonkev in https://github.com/vitest-dev/vitest/issues/9373 and https://github.com/vitest-dev/vitest/issues/9244 [ (c23dd) ](https://github.com/vitest-dev/vitest/commit/c23dd11bd) ##### [View changes on GitHub](https://github.com/vitest-dev/vitest/compare/v4.0.16...v4.0.17)

vitest

v4.0.17

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