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[TESTING] Add Cypress Real Events for a11y UI testing #5510

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merged 13 commits into from
Jan 5, 2022
Merged

[TESTING] Add Cypress Real Events for a11y UI testing #5510

merged 13 commits into from
Jan 5, 2022

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1Copenut
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@1Copenut 1Copenut commented Dec 30, 2021 •
edited by cee-chen
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Summary

I added the Cypress Real Events library to our Cypress test config and wrote a proof of concept, showing how we can use real browser events like keypresses, clicks, and hovers in our tests. Specifically, these tests will give us more coverage for keyboard and aspects of screen reader accessibility testing.

Only works in Chrome or Edge, but this is not a significant issue IMO. The type of events we are looking to test with this library are well-tread paths in evergreen browsers.

Why?

From the Cypress Real Events repo:

Cypress default events are simulated. That means that all events like cy.click or cy.type are fired from javascript. That's why these events will be untrusted (event.isTrusted will be false) and they can behave a little different from real native events. But for some cases, it can be impossible to use simulated events, for example, to fill a native alert or copy to the clipboard. This plugin solves this problem.

Further improvements may include:

Checklist

@1Copenut 1Copenut added accessibility testing Issues or PRs that only affect tests - will not need changelog entries skip-changelog accessibility - automated labels Dec 30, 2021
@1Copenut 1Copenut self-assigned this Dec 30, 2021
@1Copenut 1Copenut requested a review from cee-chen December 30, 2021 22:30
1Copenut
1Copenut commented Dec 30, 2021
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Added a couple of comments to the draft PR for context.

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Preview documentation changes for this PR: https://eui.elastic.co/pr_5510/

cee-chen
cee-chen reviewed Jan 4, 2022
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Preview documentation changes for this PR: https://eui.elastic.co/pr_5510/

@1Copenut
Refactoring setup to a custom Cypress Command helper.
2244915 
* Moved the first portion of the setup into a custom helper
* Added a second promise return to the custom helper for `cy.get()`
* DRY refactor of the real events setup completed.
@1Copenut
Updating documentation heading levels.
f09753c
@1Copenut 1Copenut requested a review from cee-chen January 4, 2022 21:01
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Preview documentation changes for this PR: https://eui.elastic.co/pr_5510/

@1Copenut
Adding a helper for repeated keypresses, refactoring contrxt menu pan…
6096153 
…el test.

* Refactored context menu panel test, updated docs.
* Added TypeScript definition to the realMount custom command.
* Updated docs to explain both mounting commands.
@1Copenut 1Copenut marked this pull request as ready for review January 5, 2022 15:36
1Copenut
1Copenut commented Jan 5, 2022
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src/components/context_menu/context_menu_panel.spec.tsx
@@ -47,49 +45,42 @@ describe('EuiContextMenuPanel', () => {
</EuiContextMenuItem>,
];

// Intermittent flake workaround: without this, the first downarrow key does not always focus into the menu items as expected
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This worked out really well, moving to real events. I was able to remove the wait timers altogether. I added focus() checks for each step and looped the test 100 times for a quality check.

Screen Shot 2022-01-04 at 5 07 12 PM

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Gif of happy woman flapping her hands to express excitement

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This looks fantastic to me! Just have 1 change request for the types file and 1 optional comment on repeatRealPress and I think this is good to go!

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Super sorry, I'm actually the worst - I know I said the type change request was the last thing, but I did one last review pass and noticed a cy.end() usage that should likely be removed. I swear this is the actual last comment haha 🙈

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Woohoo!! Thanks for your responsiveness and fixing that dang flakey Cypress test! This is awesome!

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thompsongl reviewed Jan 5, 2022
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This is so good!

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@1Copenut 1Copenut merged commit 3814436 into elastic:main Jan 5, 2022
@1Copenut 1Copenut deleted the feature/tpierce-eui-cypress-real branch January 5, 2022 23:10
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@thompsongl thompsongl thompsongl approved these changes

@cee-chen cee-chen cee-chen approved these changes

@chandlerprall chandlerprall Awaiting requested review from chandlerprall

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@1Copenut 1Copenut

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