unexpected <empty line> logs when interleaving console.log and console.error #6621
Description
Describe the bug
For the following test,
import { test } from 'vitest';
test('repro', async () => {
console.log(1);
await new Promise((r) => setTimeout(r, 1000));
console.error(2);
await new Promise((r) => setTimeout(r, 1000));
console.log(3);
});captured logs show up like this:
stdout | test/repro.test.ts > repro
1
stdout | test/repro.test.ts > repro
<empty line>
stderr | test/repro.test.ts > repro
2
stderr | test/repro.test.ts > repro
<empty line>
stdout | test/repro.test.ts > repro
3
Reproduction
https://stackblitz.com/edit/vitest-dev-vitest-f88b1t?file=test%2Frepro.test.ts
System Info
(stackblitz)
System:
OS: Linux 5.0 undefined
CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
Memory: 0 Bytes / 0 Bytes
Shell: 1.0 - /bin/jsh
Binaries:
Node: 18.20.3 - /usr/local/bin/node
Yarn: 1.22.19 - /usr/local/bin/yarn
npm: 10.2.3 - /usr/local/bin/npm
pnpm: 8.15.6 - /usr/local/bin/pnpm
npmPackages:
@vitest/ui: latest => 2.1.2
vite: latest => 5.4.8
vitest: latest => 2.1.2Used Package Manager
npm
Validations
- Follow our Code of Conduct
- Read the Contributing Guidelines.
- Read the docs.
- Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
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- The provided reproduction is a minimal reproducible example of the bug.