v1.0.0-beta.0

This is a beta release for upcoming 1.0.0 version. Use beta dist-tag when installing Vitest: npm install --save-dev vitest@beta.

   🚨 Breaking Changes

• Support multiple parallel child_process  -  by @AriPerkkio in #3925 (8b4a4)
  • If you have to disable threads (if you use canvas package, for example), this should improve your speed tremendously.
  • useFakeTimers() no longer automatically mocks process.nextTick. Users can still mock it by explicitly specifying useFakeTimers({ toFake: ['nextTick'] })
• Add support for pool and poolOptions, remove old flags  -  by @AriPerkkio in #4172 (114a9)
  • This removes a lot of configuration options to make it easier to configure the runner to your needs. Please, have a look at migration examples if you rely on --threads or other related flags.
    • --threads is now --pool=threads
    • --no-threads is now --pool=forks
    • --single-thread is now --poolOptions.threads.singleThread
    • --experimental-vm-threads is now --pool=vmThreads
    • --experimental-vm-worker-memory-limit is now --poolOptions.vmThreads.memoryLimit
    • --isolate is now --poolOptions.<pool-name>.isolate and browser.isolate
    • test.maxThreads is now test.poolOptions.<pool-name>.maxThreads
    • test.minThreads is now test.poolOptions.<pool-name>.minThreads
    • test.useAtomics is now test.poolOptions.<pool-name>.useAtomics
    • test.poolMatchGlobs.child_process is now test.poolMatchGlobs.forks
    • test.poolMatchGlobs.experimentalVmThreads is now test.poolMatchGlobs.vmThreads
• Make snapshots more visually pleasing by @sheremet-va in #3961
  • This will probably cause a lot of test mismatches. Quotes in snapshots are no longer escaped, and all snapshots use backtick quotes (`) even if the string is just a single line. Please, read the PR description for a way to use the previous behavior if you have problems upgrading.
• runner: Correctly process custom tasks, update runner hooks naming by @sheremet-va in #4076
  • This PR updates the names for most of the methods on a custom runner (Test -> Task).
  • It also improves the flow for creating your custom tasks like benchmarks using createTaskCollector utility. This is primarily an advanced API for library authors.
  • If you use @vitest/snapshot separately, you will also need to update its usage. You no longer need to extend SnapshotClient to override equalityCheck method - just pass it down as an isEqual option. Also some of the public API methods were renamed for clarity.
  • If you have any questions, please, read the PR description first.

   🚀 Features

• Include "vitest" in the process name  -  by @sheremet-va in #4191 (404c1)
• runner: Improve text.extend types  -  by @Dunqing in #4176 (bbb43)
• vitest: Expose getBenchFn, getBenchOptions  -  by @sheremet-va in #4208 (8e5e4)

   🐞 Bug Fixes

• Don't optimize vue when using optimizer  -  by @sheremet-va (4e941)
• Overwrite global URL with environment's  -  by @sheremet-va in #4164 (6a66b)
• Correctly resolve external dependencies loaded by custom environments  -  by @sheremet-va in #4196 (39647)
• Add multiple globals in VM+JSDOM  -  by @nstepien in #4199 and #4202 (fc947)
• Ignore "plugins" field in snapshotFormat option  -  by @sheremet-va in #4204 (db1ff)
• nextTick mocking error message to mention correct config option  -  by @AriPerkkio in #4215 (98fe3)
• happy-dom:
  • Don't crash when calling useFakeTimers with empty config  -  by @sheremet-va in #4214 (2e1a1)
• runner:
  • The fixture of test.extend should be init once time in all test  -  by @Dunqing in #4168 (a5979)
• vitest:
  • Make @types/node optional  -  by @sheremet-va in #4210 (a5383)
  • Inline chai types instead of using @types/chai  -  by @sheremet-va in #4209 (5f477)
  • Don't initialize globalSetup if workspace doesn't run tests  -  by @sheremet-va in #4213 (06461)

    View changes on GitHub