Vladimir
LightNews LightNews
erus.dev
Vladimir
@erus.dev
1.9K followers 130 following 150 posts
Team member of @vite.dev and @vitest.dev.
Posts Replies Media Videos
erus.dev
November 8, 2025 at 9:34 PM
erus.dev
November 7, 2025 at 1:50 PM
erus.dev
Vitest vscode extension now displays your console.logs inline. An example of logging in browser mode:
A screenshot of a vscode window where the tests call `console.log(content)` and it is visible on the same line
October 12, 2025 at 2:13 PM
erus.dev
Not unexpected, but still disappointing 🙃
October 8, 2025 at 1:48 PM
erus.dev
The next version of Browser Mode supports opening multiple headed browsers at the same time, because why not 🤷
September 30, 2025 at 5:29 PM
erus.dev
We are deprecating the `@vitest/browser/context` in the next version of Vitest in favor of `vitest/browser`. The provider is now also required for better type safety (providers are also moved to separate packages to improve the size and dependency graph of @vitest/browser)
A code example where playwright is imported as a function that accepts parameters instead of a string in the config. In this example playwright accepts an object "launchOptions" with "sloMo" set to 100 And example of migrating from @vitest/browser/context to vitest/browser. The "Find and Replace" will be enough.
September 30, 2025 at 2:22 PM
erus.dev
We are thinking about supporting Standard Schema in Vitest natively. What do you think?

github.com/vitest-dev/v...
A screenshot of a code: const schema = z.object({ name: z.string(), email: z.email(), }); const validData = { name: 'John', email: 'john@example.com' }; expect(validData).toEqual(schema); expect({ email: "john@example.com" }).toEqual({ email: z.email() });
September 8, 2025 at 6:35 PM
erus.dev
Vitest 4 runs simple test files faster! You can already check it out by installing Vitest 4 beta. On average, Vitest now takes 25% less time to start the test. Due to parallelisation, the overall time difference can vary.

We are focusing our efforts on improving the time even more in the next beta!
A benchmark showing that vitest-beta is 1.17 ± 0.01 times faster than Vitest 3. On average, the beta version takes 710ms and Vitest 3 takes 833ms.
August 27, 2025 at 3:29 PM
erus.dev
Built-in Visual Regression testing comes to Vitest in the next major release! Thank you, @macarie.blue for working on this feature 👏

main.vitest.dev/guide/browse...
The example of a test that tests an element is consistent between code changes. The code includes `expect(element).toMatchScreenshot('hero-secion')`
July 28, 2025 at 9:30 AM
erus.dev
Vitest Browser Mode reached almost 1.2 million weekly downloads 😮

Last time I checked it was 200k 🫣
The screenshot from NPM showing that @vitest/browser package has 1,165,859 weekly downloads.
July 22, 2025 at 12:42 PM
erus.dev
a screenshot of the Twitter account page for @sheremet_va, saying: 'This account doesn't exist. Try searching for another.'
January 24, 2025 at 12:12 PM
erus.dev
Working on the new @vitest.dev reporter API

gif by @ariperkkio.dev
January 7, 2025 at 8:18 PM
erus.dev
Vitest Node API is finally getting a proper documentation 👀
A screenshot of a sidebar from the Vitest Node API documentation page
December 4, 2024 at 2:45 PM
erus.dev
In the next version of Vitest a test will fail if you forgot to await .poll or .element assertions! .rejects and .resolves also print a warning now, but don’t fail a test yet (coming in Vitest 3)
A terminal output of running “vitest” command. The test doesn’t await “expect.poll” assertion which fails the test with a tip to add an “await” statement
November 8, 2024 at 3:25 PM
erus.dev
My life is complete now, Joyee follows @vitest.dev 🥺
November 6, 2024 at 9:33 PM