# Functions
NewFakeFieldManager creates an actual FieldManager but that doesn't perform any conversion.
NewTestFieldManager returns a new TestFieldManager built for the given gvk, on the main resource.
NewTestFieldManagerSubresource returns a new TestFieldManager built for the given gvk, on the given sub-resource.
# Interfaces
TestFieldManager is a FieldManager that can be used in test to simulate the behavior of Server-Side Apply and field tracking.