setUp will be automatically called around each
testcase, so this is to remove setUp that doing
nothing additional than super to keep code clean.
Change-Id: I47be2be6f0e9785eb166f89d411582d6292babc1
this will better isolate the unit tests from the functional tests.
unfortunately, the "integration" tests had to be lumped into the
"unit" tests since we need the separation in testr.conf
Change-Id: Ifd12198c1f90e4e3c951c73bfa1884ab300d8ded