Failing tests of combining <Activity> and use()#31417
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I created a copy of ActivitySuspense-test that suspends via `use()`, which shows some errors that likely correspond to an infinite loop I'm seeing when trying to integrate `use()` in Relay.
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| // @gate enableActivity | ||
| test.only('suspend, resolve, hide (forces refresh), suspend, reveal', async () => { | ||
| global.IS_REACT_ACT_ENVIRONMENT = true; | ||
| const root = ReactNoop.createRoot(); | ||
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| let setMode; | ||
| function Container({text}) { | ||
| const [mode, _setMode] = React.useState('visible'); | ||
| setMode = _setMode; | ||
| useEffect(() => { | ||
| return () => { | ||
| Scheduler.log(`Clear [${text}]`); | ||
| textCache.delete(text); | ||
| }; | ||
| }); | ||
| return ( | ||
| //$FlowFixMe | ||
| <Suspense fallback="Loading"> | ||
| <Activity mode={mode}> | ||
| <AsyncText text={text} /> | ||
| </Activity> | ||
| </Suspense> | ||
| ); | ||
| } | ||
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| await React.act(() => { | ||
| root.render(<Container text="hello" />); | ||
| }); | ||
| assertLog(['Suspend! [hello]']); | ||
| expect(root).toMatchRenderedOutput('Loading'); | ||
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| await React.act(() => { | ||
| resolveText('hello'); | ||
| }); | ||
| assertLog(['hello']); | ||
| expect(root).toMatchRenderedOutput('hello'); | ||
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| await React.act(() => { | ||
| setMode('hidden'); | ||
| }); | ||
| assertLog(['Clear [hello]', 'Suspend! [hello]']); | ||
| expect(root).toMatchRenderedOutput(''); | ||
| }); |
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this was the case that failed w an infinite loop
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Pushed tests to #31434 with you as co-author |
rickhanlonii
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## Overview In `scheduleTaskForRootDuringMicrotask` we clear `root.callbackNode` if the work loop is [suspended waiting on data](https://github.com/facebook/react/blob/ac3ca097aeecae8fe3ec7f9b286307a923676518/packages/react-reconciler/src/ReactFiberRootScheduler.js#L338). But we don't null check `root.callbackNode` before returning a continuation in `performWorkOnRootViaSchedulerTask` where `scheduleTaskForRootDuringMicrotask` is synchronously called, causing an infinite loop when the only thing in the queue is something suspended waiting on data. This essentially restores the behavior from here: https://github.com/facebook/react/pull/26328/files#diff-72ff2175ae3569037f0b16802a41b0cda2b2d66bb97f2bda78ed8445ed487b58L1168 Found by investigating the failures for #31417 ## TODO - add a test --------- Co-authored-by: Joe Savona <joesavona@fb.com>
github-actions Bot
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## Overview In `scheduleTaskForRootDuringMicrotask` we clear `root.callbackNode` if the work loop is [suspended waiting on data](https://github.com/facebook/react/blob/ac3ca097aeecae8fe3ec7f9b286307a923676518/packages/react-reconciler/src/ReactFiberRootScheduler.js#L338). But we don't null check `root.callbackNode` before returning a continuation in `performWorkOnRootViaSchedulerTask` where `scheduleTaskForRootDuringMicrotask` is synchronously called, causing an infinite loop when the only thing in the queue is something suspended waiting on data. This essentially restores the behavior from here: https://github.com/facebook/react/pull/26328/files#diff-72ff2175ae3569037f0b16802a41b0cda2b2d66bb97f2bda78ed8445ed487b58L1168 Found by investigating the failures for #31417 ## TODO - add a test --------- Co-authored-by: Joe Savona <joesavona@fb.com> DiffTrain build for [b836de6](b836de6)
github-actions Bot
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## Overview In `scheduleTaskForRootDuringMicrotask` we clear `root.callbackNode` if the work loop is [suspended waiting on data](https://github.com/facebook/react/blob/ac3ca097aeecae8fe3ec7f9b286307a923676518/packages/react-reconciler/src/ReactFiberRootScheduler.js#L338). But we don't null check `root.callbackNode` before returning a continuation in `performWorkOnRootViaSchedulerTask` where `scheduleTaskForRootDuringMicrotask` is synchronously called, causing an infinite loop when the only thing in the queue is something suspended waiting on data. This essentially restores the behavior from here: https://github.com/facebook/react/pull/26328/files#diff-72ff2175ae3569037f0b16802a41b0cda2b2d66bb97f2bda78ed8445ed487b58L1168 Found by investigating the failures for #31417 ## TODO - add a test --------- Co-authored-by: Joe Savona <joesavona@fb.com> DiffTrain build for [b836de6](b836de6)
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I created a copy of ActivitySuspense-test that suspends via
use(), which shows some errors that likely correspond to an infinite loop I'm seeing when trying to integrateuse()in Relay.