This adds tests for a couple of the less trivial bits of code in CallViewModel. Testing them helped me uncover why focus switches still weren't being smooth! (It was because I was using RxJS's sample operator when I really wanted withLatestFrom.)
Catching two accessibility issues along the way: we were putting the wrong accessible labels on the 'expand' button, and even the off-screen pages of the spotlight tile were being exposed to accessibility technologies rather than hidden.
This was the result of me playing around with RxJS marble testing to understand how to get things done with its TestScheduler. I discovered that it lacks a clear way to fire arbitrary actions during the test, so I built a small helper function called schedule which does this for us.
* Fix coverage reporting
Codecov hasn't been working recently because Vitest doesn't report coverage by default.
* Suppress some noisy log lines
Closes https://github.com/element-hq/element-call/issues/686
* Store test files alongside source files
This way we benefit from not having to maintain the same directory structure twice, and our linters etc. will actually lint test files by default.
* Stop using Vitest globals
Vitest provides globals primarily to make the transition from Jest more smooth. But importing its functions explicitly is considered a better pattern, and we have so few tests right now that it's trivial to migrate them all.
* Remove Storybook directory
We no longer use Storybook.
* Configure Codecov
Add a coverage gate for all new changes and disable its comments.
* upgrade vitest
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Co-authored-by: Timo <toger5@hotmail.de>
