[fix] whenResultIsFinished works on Promise of Array of Promises #7843
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glasser
approved these changes
Mar 5, 2024
| const callback = jest.fn(); | ||
| whenResultIsFinished(result, callback); | ||
| await new Promise((r) => setImmediate(r)); | ||
| expect(callback).toBeCalledWith(null, [expected]); |
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I'm not super positive this is guaranteed (the callback will be called in parallel with the await finishing?) but if the test isn't flaky that's OK for me.
| @@ -113,7 +113,7 @@ export function whenResultIsFinished( | |||
| ) { | |||
| if (isPromise(result)) { | |||
| result.then( | |||
| (r: any) => callback(null, r), | |||
| (r: any) => whenResultIsFinished(r, callback), | |||
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This specifically improves the "Promise of Array of ..." case.
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Thanks! |
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glasser
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Mar 5, 2024
This PR was opened by the [Changesets release](https://github.com/changesets/action) GitHub action. When you're ready to do a release, you can merge this and the packages will be published to npm automatically. If you're not ready to do a release yet, that's fine, whenever you add more changesets to main, this PR will be updated. # Releases ## @apollo/[email protected] ### Patch Changes - Updated dependencies \[[`72f568e`](72f568e)]: - @apollo/[email protected] ## @apollo/[email protected] ### Patch Changes - [#7843](#7843) [`72f568e`](72f568e) Thanks [@bscherlein](https://github.com/bscherlein)! - Improves timing of the `willResolveField` end hook on fields which return Promises resolving to Arrays. This makes the use of the `setCacheHint` method more reliable. Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
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Paired with @bbeesley.
Updates whenResultIsFinished to call callback also on Promise of Array of Promises.
Fixes (partially) #5372 and #4667.
The test case we're fixing is
'passes result of Promise of Array of Promises to the callback', the other tests test existing behaviour.The existing bug prevented us from dynamically setting cache hints in the reference resolver depending on the result of an asynchronous operation. We discovered the bug within an integration test. If you @glasser have an idea how to add an integration test and would like to add it, that would be amazing!