chore: upgrade jest
#56909
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chore: upgrade jest
#56909
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balazsorban44
requested review from
a team,
timneutkens,
ijjk,
shuding,
huozhi,
feedthejim,
ztanner and
wyattjoh
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wyattjoh
previously approved these changes
Oct 16, 2023
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balazsorban44
commented
Oct 17, 2023
| @@ -1062,7 +1062,7 @@ export async function getRedboxComponentStack( | |||
| */ | |||
| export const describeVariants = { | |||
| each(variants: TestVariants[]) { | |||
| return (name: string, fn: (...args: TestVariants[]) => any) => { | |||
| return (name: string, fn: (variants: TestVariants) => any) => { | |||
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Needed to tweak TS here
balazsorban44
commented
Oct 17, 2023
test/jest.d.ts
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Inlined in tsconfig.json. See: https://github.com/vercel/next.js/pull/56909/files#diff-b55cdbef4907b7045f32cc5360d48d262cca5f94062e353089f189f4460039e0R13
balazsorban44
commented
Oct 17, 2023
Comment on lines
-20
to
-22
| globals: { | ||
| AbortSignal: global.AbortSignal, | ||
| }, |
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We can get rid of this thanks to https://jestjs.io/blog/2022/04/25/jest-28#all-nodejs-globals
wyattjoh
previously approved these changes
Oct 17, 2023
wyattjoh
approved these changes
Oct 19, 2023
kodiakhq bot
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Oct 19, 2023
### What? Note: This is not a breaking change, just removing some unused code. ### Why? Since #56896 we don't need this, as Node.js 18+ has `fetch` exposed by default. ### How? Depends on #56896, #56909 We already didn't load `fetch` if `globalThis` had it (ie. Node.js 18+ environments), and since we are dropping support for Node.js 16, these code paths should have no effect on runtime behavior.
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What?
Upgrade jest to its latest version
Why?
#56899 fails because historically Jest stripped the globals in Node.js, but 28+ isn't doing that anymore. If we upgrade, we don't have to keep track of Node.js globals and when they are added. This will be useful in removing even more polyfills for things that are natively shipped in Node.js now.
How?
Jest 29 introduced a change to the snapshot format: https://jestjs.io/blog/2022/08/25/jest-29
First, I tried setting the old compat option to not require updating snapshots, but some tests were still failing: https://dev.azure.com/nextjs/next.js/_build/results?buildId=70633&view=logs&j=8af7cf9c-43a1-584d-6f5c-57bad8880974&t=7ae70e63-3625-50f4-6764-5b3e72b4bd7a&l=273 So going through the pain now instead.