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Add test for empty layout culling skip (#53551)

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Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/53551

See title.

Follow up on D81044841

Changelog: [Internal]

Reviewed By: rshest

Differential Revision: D81447133

fbshipit-source-id: 7e6ca4523401c30c4861606c795f306193d97a15
This commit is contained in:
Nick Lefever
2025-09-02 03:25:54 -07:00
committed by Facebook GitHub Bot
parent 6e47c953d3
commit 8f0713fd4b
1 changed files with 32 additions and 0 deletions
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packages/react-native/Libraries/Components/ScrollView/__tests__/ScrollView-viewCulling-itest.js
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+32
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@@ -2607,3 +2607,35 @@ describe('horizontal ScrollView in RTL script', () => {
]);
});
});
describe('Views with no layout', () => {
it('are not culled', () => {
const root = Fantom.createRoot({viewportWidth: 100, viewportHeight: 100});
Fantom.runTask(() => {
root.render(
<ScrollView style={{height: 100, width: 100}}>
<View nativeID={'viewWithLayout'} style={{height: 100, width: 100}} />
<View style={{height: 1000, width: 100}} />
<View
nativeID={'culledViewWithLayout'}
style={{height: 100, width: 100}}
/>
<View nativeID={'viewWithoutLayout'} style={{height: 0, width: 0}} />
</ScrollView>,
);
});
expect(root.takeMountingManagerLogs()).toEqual([
'Update {type: "RootView", nativeID: (root)}',
'Create {type: "ScrollView", nativeID: (N/A)}',
'Create {type: "View", nativeID: (N/A)}',
'Create {type: "View", nativeID: "viewWithLayout"}',
'Create {type: "View", nativeID: "viewWithoutLayout"}',
'Insert {type: "View", parentNativeID: (N/A), index: 0, nativeID: "viewWithLayout"}',
'Insert {type: "View", parentNativeID: (N/A), index: 1, nativeID: "viewWithoutLayout"}',
'Insert {type: "View", parentNativeID: (N/A), index: 0, nativeID: (N/A)}',
'Insert {type: "ScrollView", parentNativeID: (root), index: 0, nativeID: (N/A)}',
]);
});
});