Summary:
Changelog:
[ios][added] - introduce MockSurfaceHandler
following the recommendation in https://fb.workplace.com/groups/474291069286180/posts/6540719469309946
in order to unit test classes that use SurfaceHandler, we need to be able to mock it somehow - since the class is final we aren't able to do that. in this diff, we add the mock class.
Reviewed By: sammy-SC
Differential Revision: D30578927
fbshipit-source-id: 9b39b03ad0b55cecd9b482f9cce9630d7e7d5bda
Summary:
Add unit tests for Layout Animations.
This first batch generates a random mutation, then animates it to completion.
I found one issue with UPDATE+REMOVE+INSERT animation consistency. That shouldn't cause any crashes in production, but is a chance to improve consistency of mutations overall - and could in theory point to memory corruption, though it's somewhat unlikely.
I ran with randomized seeds, found issues, fixed them, re-ran to ensure issues were fixed, rinsed and repeated. At the end I was able to run dozens of times (with random seeds) and found nothing.
The next step is to repeatedly generate mutations that conflict with ongoing animations.
Changelog: [Internal]
Reviewed By: sammy-SC
Differential Revision: D28343750
fbshipit-source-id: c1c60d89a31be3ac05d57482f0af3c482b866abe
Phillip Pan
Joshua Gross