Iterate over a struct array rather than having a list of strings to
pull things out of, by individual index; this makes it easy to include
the non-existence check for directories in the same loop. In the
process, give the absolute-path tests a prefix to mirror the relative-
prefix on their partners. This prepares the way for adding more
test-cases.
Change-Id: Id839caedf92387dfa9b94f31253410285f72ff70
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
c9ff943f8f