Ensure metadata tests manipulate only its own metadata

There are some metadata that only drivers or administrators can
manipulate, and if the tests haven't created those, we should not
be adding them to our asserts.

In this change, we are making sure that tests will only validate
the metadata that they are creating.

Change-Id: I168e1d9057d48b61eb325f2fd93dcc12a406f06e
1 file changed