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Allowed describe and it/test to take in functions again #12484

Merged
merged 18 commits into from
Feb 24, 2022
Merged

Allowed describe and it/test to take in functions again #12484

merged 18 commits into from
Feb 24, 2022

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JoshuaKGoldberg
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@JoshuaKGoldberg JoshuaKGoldberg commented Feb 24, 2022

Summary

Partially replicates DefinitelyTyped/DefinitelyTyped#23102 by allowing describe to take in a number or function.

Fixes #12483.

Test plan

I can verify TypeScript thinks these things are valid:

var describe: jest.Describe (name: string | number | Function | jest.FunctionLike, fn: jest.EmptyFunction) => void

I couldn't figure out where the right place to test this at runtime is, though. Could someone help please? 🙂 Actually, there are a bunch of compiler issues - I'll work on those.

@JoshuaKGoldberg JoshuaKGoldberg marked this pull request as draft February 24, 2022 00:17
@JoshuaKGoldberg JoshuaKGoldberg changed the title Allowed describe and test to take in functions again Allowed describe to take in functions again Feb 24, 2022
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SimenB commented Feb 24, 2022

Nice! CI seems happy 🙂

Can you add type tests as well? https://github.com/facebook/jest/blob/c65bb4521597fb1ad65dacd778a26e04684b2872/packages/jest-types/__typetests__/globals.test.ts

I couldn't figure out where the right place to test this at runtime is, though.

Runtime support is already test by the test you added in #5154, no?

https://github.com/facebook/jest/blob/c65bb4521597fb1ad65dacd778a26e04684b2872/e2e/__tests__/globals.test.ts#L265-L281

@JoshuaKGoldberg JoshuaKGoldberg marked this pull request as ready for review February 24, 2022 12:35
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changelog entry as well? 🙂

packages/jest-util/src/convertDescriptorToString.ts Outdated Show resolved Hide resolved
packages/jest-circus/src/index.ts Outdated Show resolved Hide resolved
@JoshuaKGoldberg JoshuaKGoldberg changed the title Allowed describe to take in functions again Allowed describe and it/test to take in functions again Feb 24, 2022
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thanks!

@SimenB SimenB merged commit 6b2e901 into jestjs:main Feb 24, 2022
@JoshuaKGoldberg JoshuaKGoldberg deleted the block-test-name-function-like branch February 24, 2022 18:38
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Thank you for the pointers @SimenB! 🙌

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[Bug]: Types no longer allow passing a named function to describe
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