When testing specific internal functionallity while needing things from
the testlib, so far, the tests for the testlib have always been copied
too.
To reduce the amount of additional program required when later making
the env of the pytest_command declarative, and to not test the same
tests a multitude of times (and potentially reaching infinite recursion)
those tests will no longer be copied
Change-Id: I36ec3824a21ed30f9b8ff19948031d1edbf6c76c
