public void should_not_send_messages_to_persistence_twice_if_persistence_goes_up_and_down()
        {
            using (MessageId.PauseIdGeneration())
            {
                PeerDirectory.Setup(directory => directory.GetPeersHandlingMessage(new MessageBinding(new MessageTypeId(typeof(PersistMessageCommand)), BindingKey.Empty)))
                .Returns(new List <Peer> {
                    PersistencePeer
                });

                // Stopping persistence
                InnerTransport.RaiseMessageReceived(new TransportMessage(MessageTypeId.PersistenceStopping, new byte[0], PersistencePeer));
                InnerTransport.Messages.Clear();

                var ackedMessage = new FakeCommand(456).ToTransportMessage();
                Transport.AckMessage(ackedMessage);
                InnerTransport.AckedMessages.ShouldBeEmpty();

                // starting persistence - should send enqueued messages
                Transport.OnPeerUpdated(PersistencePeer.Id, PeerUpdateAction.Started);

                InnerTransport.ExpectExactly(new[]
                {
                    new TransportMessageSent(new MessageHandled(ackedMessage.Id).ToTransportMessage(Self), PersistencePeer)
                });

                // Stopping persistence again
                InnerTransport.RaiseMessageReceived(new TransportMessage(MessageTypeId.PersistenceStopping, new byte[0], PersistencePeer));
                InnerTransport.Messages.Clear();

                // starting persistence again - should not have anything to send
                Transport.OnPeerUpdated(PersistencePeer.Id, PeerUpdateAction.Started);

                InnerTransport.ExpectNothing();
            }
        }
        public void should_not_lose_messages_when_persistent_transport_goes_down_and_comes_back_up()
        {
            using (MessageId.PauseIdGeneration())
            {
                PeerDirectory.Setup(directory => directory.GetPeersHandlingMessage(new MessageBinding(new MessageTypeId(typeof(PersistMessageCommand)), BindingKey.Empty)))
                .Returns(new List <Peer> {
                    PersistencePeer
                });

                // Stopping persistence
                InnerTransport.RaiseMessageReceived(new TransportMessage(MessageTypeId.PersistenceStopping, new byte[0], PersistencePeer));

                InnerTransport.ExpectExactly(new TransportMessageSent(new TransportMessage(MessageTypeId.PersistenceStoppingAck, new byte[0], Self), PersistencePeer));
                InnerTransport.Messages.Clear();

                // should enqueue messages to persistence
                var message      = new FakeCommand(123).ToTransportMessage();
                var ackedMessage = new FakeCommand(456).ToTransportMessage();
                Transport.Send(message, new[] { AnotherPersistentPeer });
                Transport.AckMessage(ackedMessage);

                InnerTransport.AckedMessages.ShouldBeEmpty();
                InnerTransport.ExpectExactly(new TransportMessageSent(message, AnotherPersistentPeer));
                InnerTransport.Messages.Clear();

                // starting persistence - should send enqueued messages
                Transport.OnPeerUpdated(PersistencePeer.Id, PeerUpdateAction.Started);

                InnerTransport.ExpectExactly(new[]
                {
                    new TransportMessageSent(new PersistMessageCommand(message, new[] { AnotherPersistentPeer.Id }).ToTransportMessage(Self), PersistencePeer),
                    new TransportMessageSent(new MessageHandled(ackedMessage.Id).ToTransportMessage(Self), PersistencePeer)
                });


                InnerTransport.Messages.Clear();
                InnerTransport.AckedMessages.Clear();

                // should send messages without going through the queue
                Transport.Send(message, new[] { AnotherPersistentPeer });
                Transport.AckMessage(ackedMessage);

                InnerTransport.ExpectExactly(new[]
                {
                    new TransportMessageSent(message, AnotherPersistentPeer),
                    new TransportMessageSent(new PersistMessageCommand(message, new[] { AnotherPersistentPeer.Id }).ToTransportMessage(Self), PersistencePeer),
                    new TransportMessageSent(new MessageHandled(ackedMessage.Id).ToTransportMessage(Self), PersistencePeer),
                });
            }
        }
        public void should_discard_messages_waiting_for_persistence_on_stop()
        {
            using (MessageId.PauseIdGeneration())
            {
                Transport.Start();

                PeerDirectory.Setup(directory => directory.GetPeersHandlingMessage(new MessageBinding(MessageTypeId.PersistenceStoppingAck, BindingKey.Empty)))
                .Returns(new List <Peer> {
                    PersistencePeer
                });

                // Stopping persistence
                InnerTransport.RaiseMessageReceived(new TransportMessage(MessageTypeId.PersistenceStopping, new byte[0], PersistencePeer));
                InnerTransport.Messages.Clear();

                var ackedMessage = new FakeCommand(456).ToTransportMessage();
                Transport.AckMessage(ackedMessage);

                Transport.Stop();
                Transport.Start();
            }
        }