def test_unavailableReceivedNotInRoster(self):
        room = self._createRoom()
        user = muc.User(self.nick)
        room.addUser(user)
        otherOccupantJID = JID(self.occupantJID.userhost()+'/OtherNick')
        self._testPresence(sender=otherOccupantJID, available=False)
Acquires a persistent global lock on the specified viewpoint.
dataset/ETHPy150Open ralphm/wokkel/wokkel/test/test_muc.py/MUCClientTest.test_unavailableReceivedNotInRoster--crossover with--dataset/ETHPy150Open viewfinderco/viewfinder/backend/db/viewpoint.py/Viewpoint.AcquireLock