memoize-one | memoization library

The main issue is that you shouldn't be using Menu for this. Menu assumes that it has MenuItem children and has accessibility functionality geared towards that assumption. The behavior you are seeing is caused by the functionality that tries to navigate to menu items by typing the character that the menu item's text starts with. In your case, it is finding the text of the label "Search", and then it is moving focus to that "menu item" (which is why you then get a focus outline on the div containing your TextField). If you change the label to "Type Here", you'll find the "s" works, but "t" doesn't.

My recommendation would be to use Popover directly (the lower-level component which Menu delegates to for the main functionality you are using from it). Another option would be to use the Autocomplete component since you seem to be trying to use Menu and the pop-up TextField to do your own custom version of what the Autocomplete component provides.

Here's a refactoring of your code to idiomatic React Hooks style (naturally dry-coded).

Note how filtering and sorting the role members is done using useMemo() in a way that doesn't modify state; that's because they can be always recomputed from the stateful data. So long as the useMemo()s' deps array is kept in sync (there're ESLint rules to help with this), this should work with no extra re-renders. :)

Similarly, if you use useCallback (which is a special case of useMemo), you need to keep their deps arrays in sync. If you don't use useCallback, those callbacks may cause re-renders since their identity changes per-render.

There is a function which is called literally original that does that:

https://immerjs.github.io/immer/docs/original

Got the same problem, just clean project and rebuild again.

Turns out you need to use react-scripts instead of executing jest directly when using CRA: https://create-react-app.dev/docs/debugging-tests/