[vtctld/wrangler] Extract `EmergencyReparentShard` logic to dedicated struct and add unit tests#7464

Merged

deepthi merged 3 commits intovitessio:masterfrom

tinyspeck:am_emergency_reparenter

Feb 9, 2021

Commits on Feb 8, 2021

Update `AddTablet` to take options, update callers
Andrew Mason
committed
Make `testutil.AddTablet` and `testutil.AddShards` more flexible
Andrew Mason
committed
Extract `EmergencyReparentShard` logic to dedicated struct and add unit tests
Andrew Mason
committed