Be Careful with Table Driven Tests and t.Parallel()

[Eyal Posener]

Hi,

A small talk about table driven tests and t.Parallel - it is dangerous!

https://gist.github.com/posener/92a55c4cd441fc5e5e85f27bca008721

[Axel Wagner]

There is #20733 which is about the necessary language change (which has to wait for Go 2, though).

I'm not sure a vet-check can reasonably catch this, particular case; you'd have to at least special case for (*testing.T).Parallel calls, as it's not apparent from the code itself, that there will be a goroutine spawned.

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