Scalatest deadlocks very easily

[m50d]

Minimal example: https://scastie.scala-lang.org/NU86Wy4kTTukZzaSTUM2VA
I think this is because AsyncIOSpec passes scalatest's executionContext which is serialExecutionContext and not really suitable for general-purpose use.

[djspiewak]

Hmm, what's the ideal solution here? Is it better to just override ScalaTest's ExecutionContext? I don't actually use ScalaTest so I can't speak to its idiomatic usage.

[m50d]

Overriding the executionContext seems to work. I avoid ScalaTest as much as possible myself TBH, I don't know what's considered idiomatic there.

[djspiewak]

What should we override it with? The IORuntime default EC?

[m50d]

Sounds reasonable to me.

[djspiewak]

Alrighty, it's duly on my todo list (PRs welcome if someone gets to it first!)