Summary:
This change adds a series of snapshot tests to validate the render output of VirtualizedList in mixed scenarios. Jest timer mocks are used to measure rendering at different ticks. These test cases mostly center around realization logic, to help prevent regressions when chaning internal state representation.
## Changelog
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[Internal] [Added] - Add unit tests for VirtualizedList render quirks
Pull Request resolved: https://github.com/facebook/react-native/pull/31401
Test Plan: Ran the added UTs locally.
Reviewed By: lunaleaps
Differential Revision: D28017750
Pulled By: rozele
fbshipit-source-id: df9684c4ac80a8732f3e88e7496815127213832e
Nick Gerleman
cd78558552