## Changes
Using an interface instead of a concrete type means we can pass
`*testing.T` directly or any wrapper type that implements a superset of
this interface. It prepares for more broad use of `acc.WorkspaceT`,
which enhances the testing object with helper functions for using a
Databricks workspace.
This eliminates the need to dereference a `*testing.T` field on a
wrapper type.
## Tests
n/a
Pieter Noordhuis