Jest: concurrent test execution support for test.each

[yxliang01]

🚀 Feature Proposal

It's natural to support something like test.each.concurrent that the test function invoked with different items is executed concurrently.
Such test function should be written with concurrency in mind.

Motivation

Same as the motivation for test.concurrent

Example

test.each.concurrent([1,2,3])('Name', (num)=> {
  // This function is executed concurrently with different `num`!
});

Pitch

Why does this feature belong in the Jest core platform?

It has to be here :)

[SimenB]

We should deffo have this
/cc @mattphillips

[Mark1626]

@SimenB I'll give a shot at this

[SimenB]

Thank you!

[aortegao]

Is it solved? I'm interested in it

[Mark1626]

I got caught up with work a bit, will be finishing it of this week