FATE tests organization/maintainability improvement #5837
Description
Is your feature request related to a problem? Please describe.
The fate test package contains several custom test FATE objects (currently: FastFate, FlakyFate, SlowFateSplit) and several custom test Manager objects (currently: FlakyFateManager, SlowFateSplitManager).
Describe the solution you'd like
Would be clearer and more maintainable if these had a super class like CustomFate and CustomFateManager. Could also potentially move all these classes into their own sub package within the fate test package.
Describe alternatives you've considered
Could leave as is.