Add cyclic dependency test
Add cyclic dependency test

Added cyclic dependency test to ensure correct behavior with cycles.

Also corrected test_dependencies where assertTrue was mistakenly
used in place of assertEqual

Change-Id: Ifd17285ef74ce5596ad47285dac52fdcfba8d170

openstack/congress,ramineni/my_congress,ramineni/my_congress,ramineni/my_congress,ramineni/my_congress,openstack/congress