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RangeControl: Convert unit tests to typescript #41445

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merged 31 commits into from
Jul 12, 2022

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aaronrobertshaw
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@aaronrobertshaw aaronrobertshaw commented May 31, 2022

Depends on:

Related:

What?

Converts the RangeControl unit tests to typescript.

Why?

Completes the process of converting the RangeControl to TypeScript alongside #40535 & #41444

How?

  • Coverts unit test file to TypeScript and resolve typing errors

Testing Instructions

  1. Run unit tests and ensure they are all passing: npm run test-unit /packages/components/src/range-control/test

@aaronrobertshaw aaronrobertshaw added [Type] Enhancement A suggestion for improvement. [Feature] UI Components Impacts or related to the UI component system [Package] Components /packages/components labels May 31, 2022
@aaronrobertshaw aaronrobertshaw self-assigned this May 31, 2022
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Size Change: 0 B

Total Size: 1.25 MB

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@ciampo ciampo requested review from mirka and ciampo May 31, 2022 09:29
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Great work! Code changes LGTM, tests still pass, and there's not TS errors 🚀

Optionally, we could look into partially rewriting these tests using @testing-library/user-event (similarly to what done in #40697 and #41270). In case you feel like working on it, I'll leave it up to you if you want to add those changes in this PR, or apply them in a follow-up PR.

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stokesman commented Jun 1, 2022

Optionally, we could look into partially rewriting these tests using @testing-library/user-event

The key word "partially" 😄. I had a go at it a few days ago and realized there's no user-event way to manipulate a input type=range testing-library/user-event#871.

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ciampo commented Jun 2, 2022

Optionally, we could look into partially rewriting these tests using @testing-library/user-event

The key word "partially" 😄. I had a go at it a few days ago and realized there's no user-event way to manipulate a input type=range testing-library/user-event#871.

Oh well 😅 We could at least stop using document.querySelector and switch to getByRole or something similar

@aaronrobertshaw
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aaronrobertshaw commented Jun 3, 2022

Thanks for the suggested improvements 👍

I've removed the use of querySelector from these tests.

The one catch here was being able to select the icons as they are only spans with no alt, text, or role. I've added a role="img" to the RangeControl's icons. Is this ok? Or, does that create different problems?

As for leveraging @testing-library/user-event I'd like to address that in a follow-up even if it is only a partial conversion.

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mirka commented Jun 3, 2022

The one catch here was being able to select the icons as they are only spans with no alt, text, or role. I've added a role="img" to the RangeControl's icons. Is this ok? Or, does that create different problems?

I think this is safe, especially since the svg element is aria-hidden="true" to begin with.

But... to be honest I don't think the "should render with icons" test is worth contorting ourselves to avoid a querySelector. Querying for the img role isn't making our test robust (it will break when we add some kind of other image to the component), and we still need to check for the CSS class names anyway. We might as well just querySelector the class names — it's actually more robust in this case.

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ciampo commented Jun 3, 2022

I'm actually not sure about adding the role="img" to icons — that should be done only if we believe that they should be announced by assistive technology, i.e. if they carry any "semantic value" (which they may not, in case they're added only for "visual presentation")

@aaronrobertshaw aaronrobertshaw force-pushed the refactor/range-control-to-typescript branch from 146713c to 1f2a73b Compare June 6, 2022 01:58
@aaronrobertshaw aaronrobertshaw force-pushed the refactor/range-control-unit-tests-to-typescript branch from 308c826 to 57fb884 Compare June 6, 2022 02:03
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aaronrobertshaw commented Jun 6, 2022

Thanks for the guidance @mirka & @ciampo 🙇

I've removed the role="img" from the Icons and reverted the test to use querySelector. (57fb884)

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LGTM 🚀

@aaronrobertshaw aaronrobertshaw force-pushed the refactor/range-control-to-typescript branch from a435f81 to f19616e Compare July 12, 2022 01:40
@aaronrobertshaw aaronrobertshaw force-pushed the refactor/range-control-unit-tests-to-typescript branch from 9471fee to 1b53957 Compare July 12, 2022 01:42
Base automatically changed from refactor/range-control-to-typescript to trunk July 12, 2022 02:38
@aaronrobertshaw aaronrobertshaw merged commit e6d9387 into trunk Jul 12, 2022
@aaronrobertshaw aaronrobertshaw deleted the refactor/range-control-unit-tests-to-typescript branch July 12, 2022 02:41
@github-actions github-actions bot added this to the Gutenberg 13.7 milestone Jul 12, 2022
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