The module backports features to Python 2.6 and 2.7. If it is available,
the tests will use it. If it is not available, it will fall back to
regular unittest. On Python 2.7, the tests pass anyway. On Python 2.6,
there are failures with Python 2.6.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
There is a lot of mock objects needed: we bypass calls to Koji, use a
mock FileCache that does not need valid RPMs on disk and avoid any
multithreading.
The test data in tests/fixtures/tagged-rpms.json comes from Koji. It is
filtered down to only a few packages to make it manageable.
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>