[BUG] $attrs doesn't include event handlers in pass through component in Playwright component testing in Vue 3

[segevfiner]

System info

• Playwright Version: v1.34.3
• Operating System: macOS 13.4
• Browser: Chromium
• Other info:

Source code

• I provided exact source code that allows reproducing the issue locally.

Link to the GitHub repository with the repro

https://github.com/segevfiner/playwright-ct-vue-on-issue

Steps

• Run pnpm i
• Run pnpm test:unit, it passes, there is an onFoo property in $attrs
• Run pnpm test-ct, it fails, there is no onFoo property in $attrs, and it doesn't format the console.log message as the browser does (Handles %o and so on), just prints the arguments verbatim.

Expected

For event handlers specified in component testing and propagated via $attrs to work.

Actual

They don't work. (But they do in vitest)

[aslushnikov]

cc @sand4rt any clues?

[sand4rt]

@aslushnikov I can reproduce the issue. Will dive into it deeper later on.