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Cache wrapped function element in shallow renderer #2014

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rodrigopr commented Feb 8, 2019

This is necessary because ReactShallowRender checks for equality in function components to decide if it should keep hooks state between renders.

This along with facebook/react#14802 / facebook/react#14840 should help in test components with some of the core hooks.
link #2011 , #2008 and #1996

@rodrigopr rodrigopr force-pushed the rodrigopr:rodrigopr/cache-shallowed-wrapper-element branch from 454c51c to ae30cfd Feb 8, 2019

@ljharb ljharb added this to Lifecycles in React 16 Feb 9, 2019

@ljharb ljharb moved this from Lifecycles to v16.8+: Hooks in React 16 Feb 9, 2019

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ljharb left a comment

Seems great! Can you add a test that fails without this change?


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rodrigopr commented Feb 11, 2019

@ljharb sure, I guess I'll wait for the react PR to be merged to do a more meaningful test for it.

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