[r=ack] Merge lp:~free.ekanayaka/txlongpoll/notification-source-integration-tests
This branch adds integration tests for the NotificationSource class.
They basically cover the same ground as the equivalent tests in the
legacy txlongpoll.tests.test_integration.DeprecatedQueueManagerTest test
class, but also add new failure scenarios, like network disconnects or
broker restarts, showing that NotificationSource handles them gracefully.