cyberdelia/tusk — pull request #1 by quiver (2013-09-29 10:37:21+00:00)
Title: add two more test cases

#1. test_unlock_unheld_lock
If the lock was not held, pg_advisory_unlock will return false.

#2. test_consecutive_acquire
If a session already holds a given advisory lock,
additional requests by it will always succeed,
even if other sessions are awaiting the lock.