Bug 577552 - Switch tests to mockito

First portion of p2 tests.

Change-Id: I87dc952dfdceea329f64e8176b3672b11ea62f37
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>
Reviewed-on: https://git.eclipse.org/r/c/equinox/rt.equinox.p2/+/188436
3 files changed