A community-maintained spec for global state libraries

[dai-shi]

From: reduxjs/react-redux#1808 (comment)

@dai-shi, perhaps we can work together to update the will-this-react-global-state-work-in-concurrent-rendering project to match the latest expectations?

I'm thinking about updating it.

A word of caution, though: test suites like will-this-react-global-state-work-in-concurrent-rendering can be really useful for detecting the presence of certain tearing bugs — but it can't prove the absence of all tearing bugs.

Yes, the goal is to detect some known behaviors, not to prove everything.

Test spec

• With useTransition
  • Level 1
    • No tearing finally on update
    • No tearing finally on mount
  • Level 2
    • No tearing temporarily on update
    • No tearing temporarily on mount
  • Level 3
    • Can interrupt render (time slicing)
    • Can branch state (wip state)
• With useDeferredValue
  • Level 1
    • No tearing finally on update
    • No tearing finally on mount
  • Level 2
    • No tearing temporarily on update
    • No tearing temporarily on mount
  • Level 3
    • Can interrupt render (time slicing) HOW TO TEST THIS?
    • Can branch state (wip state) HOW TO TEST THIS?

Tool

will-this-react-global-state-work-in-concurrent-rendering