Allow custom cleanup functions in TestScheduler

🚀 Feature Proposal

Allow custom cleanup functions to be run by TestScheduler. Currently, TestScheduler only runs cleanup for jest snapshots (code here).

I would like a way to specify a custom cleanup function, or to have an expectation that a custom matcher can export it’s own cleanup function.

Motivation

Custom matchers generate snapshots that can be obsolete once the corresponding test files have been removed. See related jest-image-snapshot issue here: https://github.com/americanexpress/jest-image-snapshot/issues/59#issuecomment-421222824

When working with a custom matcher e.g. jest-image-snapshot, there doesn’t seem to be a way to run a cleanup function after all tests have finished running. Custom matchers may also save snapshot files with their own naming format, which may not correspond to jest-snapshot naming conventions,

Example

See motivation above ^

Pitch

A cleanup should run after all tests have been completed, which is known to TestScheduler. As far as I can see, that is the best place that this can happen – happy to hear out and discuss alternative implementations!

[markov00]

Hey there any news on this?

[github-actions[bot]]

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