Accessibility: update a11y.js

[HuanWuCode]

Enhance test readability by renaming tests for clarity

[straker]

Thanks for the pr. These are just examples, but that same naming schema is used for other examples as well:

• jasmine
• jsdom
• mocha

I'm not opposed to renaming the tests, but we should probably do it for all of them. If you'd like to update the pr to update all 4 tests with the same naming then I'll approve.

[straker]

Closing due to inactivity