[expect-expect and no-standalone-expect] additionalTestBlockFunctions does not recognize test.each-like functions

[TomerAberbach]

See dubzzz/fast-check#4474

fast-check exposes a test.prop function that's invoked similarly to Jest's built-in test.each. However, it doesn't seem like expect-expect and no-standalone-expect's additionalTestBlockFunctions option supports test.each-like function. Probably because the test lambda is passed to an anonymous function instead of test.prop itself (i.e. test.prop(args)(theTestLambda))

Would it be possible to support test.each-like functions?

[G-Rath]

Could you give me a small example of test.prop being used? I've never used fast-check and can't find anything about test.prop or testProp so it's hard to triage this 😅

nw found it: https://fast-check.dev/docs/ecosystem/#fast-checkjest-

[TomerAberbach]

Ah sorry, thanks for looking! That is indeed right 👍

[G-Rath]

I'm somewhat reserved these days on adding support for this kind of thing because we've got to draw the line in how far we go to support non-jest variations of stuff somewhere but that isn't an outright no.

One thing that comes to mind is globalAliases, but part of the challenge is you're not providing a direct replacement for jest which exposes us to that variation problem: we'd need to be expressing "this is like it.each, but it doesn't otherwise act like it"...

I'll sit on this for a bit and play around with our existing logic when I have a chance to see if it could fit naturally in.