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kotlinlang

Anyone used Playwright with Kotest? We've just been trying it, but it's explicitly not threadsafe (has unsychronized / non volatile variables) so I'm not sure how well it plays with coroutines. Eschewing suspend calls / withContext calls seems to have got round this, though there's a ton of other problems we're fighting so it's possible I misdiagnosed thread safety as an issue.

<https://playwright.dev/java/> ? never heard of it before, looks cool though

I guess as long as you run everything sequentially (ie one thread) then it wouldn't matter?

looking at here (<https://playwright.dev/java/docs/test-runners#running-tests-in-parallel>) running in parallel wouldn't hurt, but you have to limit each parallel run to use its own playwright instance

It's not parallelism, it's memory change visibility that's the issue

I was calling playwright in a `withContext(<http://Dispatchers.IO|Dispatchers.IO>)` block, which seemed to be resulting in a change to a `Page`'s url field not being visible in the thread I was checking it in, despite definitely having been updated.