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FormTokenField: use KeyboardEvent.code, refactor tests to model RTL and user-event #43442

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merged 23 commits into from
Aug 23, 2022

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@ciampo ciampo commented Aug 19, 2022

What?

  • Refactor the FormTokenField component to rely on code instead of keyCode for keyboard events.
  • Since some tests were failing because they were relying on fireEvent, I went ahead and rewrote the whole test suite in TypeScript, using userEvent and with "modern" RTL style (i.e. avoiding implementation details).
  • While rewriting tests, fixed a couple of small glitches:
    • Fixed an issue where __experimentalExpandOnFocus actually made the suggestions always visible (not just when focused)
    • Fixed an issue where the component wasn't re-computing matching suggestions when __experimentalAutoSelectFirstMatch's value changed

On top of that, here's list of things that I noticed and could be improved:

  • the autoComplete prop is listed as a value accepted by the component, but it doesn't seem to have any impact (since it gets overridden to off)
  • the listbox element can be rendered even if there are no suggestions passed via prop (for example, if the __experimentalExpandOnFocus is true and the component gets focused)
  • the accessibility of the tokens may need to be reviewed (button with a label and visually hidden text, both wrapped in a parent that can also have the title attribute set)
  • __experimentalRenderSuggestion would probably be a better name for __experimentalRenderItem, and shoudl it allow for extra props?
  • we should review the RTL support of this component

Why?

keyCode is deprecated, and replaced by code

We're also rewriting our unit tests to RTL

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Size Change: +5 B (0%)

Total Size: 1.24 MB

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@ciampo ciampo force-pushed the refactor/form-token-field-keycode-code branch from 432d5c1 to fed3197 Compare August 22, 2022 18:08
@ciampo ciampo self-assigned this Aug 22, 2022
@ciampo ciampo added [Type] Enhancement A suggestion for improvement. [Feature] UI Components Impacts or related to the UI component system [Package] Components /packages/components [Type] Automated Testing Testing infrastructure changes impacting the execution of end-to-end (E2E) and/or unit tests. labels Aug 22, 2022
@ciampo ciampo marked this pull request as ready for review August 22, 2022 18:24
@ciampo ciampo requested a review from ajitbohra as a code owner August 22, 2022 18:24
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I'm in love with the way you write tests: elegant, eloquent, thorough, well-described, and easy to follow ❤️ Thanks a lot for your brilliant work here! 💯

I've left a few suggestions, but it's just minor optional stuff, this already looks ready to go.

🚀 🚢

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ciampo commented Aug 23, 2022

Thank you for your review, I'm humbled 🙇

All feedback has been addressed, will wait for CI to ✅ and merge

@ciampo ciampo force-pushed the refactor/form-token-field-keycode-code branch from 94e42d9 to 9435de3 Compare August 23, 2022 14:30
@ciampo ciampo merged commit 69d2e59 into trunk Aug 23, 2022
@ciampo ciampo deleted the refactor/form-token-field-keycode-code branch August 23, 2022 17:00
@github-actions github-actions bot added this to the Gutenberg 14.0 milestone Aug 23, 2022
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