public void ReadMultipleMessagesFromClient()
{
var queue = new ConcurrentQueue <ClientConnection>();
var socket = new MockSocket();
var client1 = new ClientConnection(socket, ClientId.Next(), 100);
var client2 = new ClientConnection(socket, ClientId.Next(), 100);
var dispatcher = new Dispatcher(queue, 3, BoundedInbox.Create(),
new BoundedInbox[2], BoundedInbox.Create());
// Client1 messages
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 600);
socket.ExpectReceive(data =>
{
data.Clear();
// Three messages, of sizes 200, 300 and 100
BitConverter.GetBytes(200).CopyTo(data);
BitConverter.GetBytes(300).CopyTo(data.Slice(200));
BitConverter.GetBytes(100).CopyTo(data.Slice(500));
return(600);
});
// Reading second message
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Reading third message
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Exiting loop
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Client2 messages
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 100);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(70).CopyTo(data);
BitConverter.GetBytes(30).CopyTo(data.Slice(70));
return(100);
});
// Reading second message
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Exiting loop
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Some more messages for Client1
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 60);
socket.ExpectReceive(data =>
{
data.Clear();
// Two messages, of sizes 10 and 40
BitConverter.GetBytes(25).CopyTo(data);
BitConverter.GetBytes(35).CopyTo(data.Slice(25));
return(60);
});
// Reading second message
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Exiting loop
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// No more messages for Client2
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
queue.Enqueue(client1);
queue.Enqueue(client2);
dispatcher.DequeueNewClients();
// Client1 reading 3 messages, Client2 two
dispatcher.ListenToConnections();
// Client1 reading 2 more messages, Client2 none
dispatcher.ListenToConnections();
socket.ExpectAllDone();
}
public void SendAnswers()
{
var queue = new ConcurrentQueue <ClientConnection>();
var socket = new MockSocket();
var outbox = BoundedInbox.Create();
var client1 = new ClientConnection(socket, ClientId.Next(), 100);
var client2 = new ClientConnection(socket, ClientId.Next(), 100);
queue.Enqueue(client1);
queue.Enqueue(client2);
var dispatcher = new Dispatcher(queue, 3, outbox,
new BoundedInbox[2], BoundedInbox.Create());
// Try sending message to one client, doesn't succeed
socket.ExpectConnected(() => true);
socket.ExpectSend(data => 0);
// Try sending message to the other client, doesn't succeed
socket.ExpectConnected(() => true);
socket.ExpectSend(data => 0);
// Try sending message to first client, socket gets closed
socket.ExpectConnected(() => true);
socket.ExpectClose();
// Try sending message to second client, socket gets closed
socket.ExpectConnected(() => true);
socket.ExpectClose();
var firstMessage = new byte[100];
BitConverter.GetBytes(100).CopyTo(new Span <byte>(firstMessage));
client2.ConnectionId.WriteTo( // send back to client2
firstMessage.AsSpan(ClientServerMessage.ClientIdStart, ClientServerMessage.ClientIdSizeInBytes));
var secondMessage = new byte[100];
BitConverter.GetBytes(100).CopyTo(new Span <byte>(secondMessage));
client1.ConnectionId.WriteTo( // send back to client1
secondMessage.AsSpan(ClientServerMessage.ClientIdStart, ClientServerMessage.ClientIdSizeInBytes));
var thirdMessage = new byte[50];
BitConverter.GetBytes(50).CopyTo(new Span <byte>(thirdMessage));
client1.ConnectionId.WriteTo( // send back to client1
thirdMessage.AsSpan(ClientServerMessage.ClientIdStart, ClientServerMessage.ClientIdSizeInBytes));
var fourthMessage = new byte[50];
BitConverter.GetBytes(50).CopyTo(new Span <byte>(fourthMessage));
client2.ConnectionId.WriteTo( // send back to client2
fourthMessage.AsSpan(ClientServerMessage.ClientIdStart, ClientServerMessage.ClientIdSizeInBytes));
// Write messages into dispatcher buffer for both clients
Assert.True(outbox.TryWrite(firstMessage));
Assert.True(outbox.TryWrite(secondMessage));
dispatcher.DequeueNewClients();
// Try sending the answers, fails
dispatcher.SendResponses();
Assert.True(outbox.TryWrite(thirdMessage));
Assert.True(outbox.TryWrite(fourthMessage));
dispatcher.SendResponses();
socket.ExpectAllDone();
}
public void FillControllerInbox()
{
var queue = new ConcurrentQueue <ClientConnection>();
var socket = new MockSocket();
var client1 = new ClientConnection(socket, ClientId.Next(), 100);
var client2 = new ClientConnection(socket, ClientId.Next(), 100);
// Client1 empty inbox
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Client2 unsharded message
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => LargeMessageSize);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(LargeMessageSize).CopyTo(data);
return(LargeMessageSize);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Client1 unsharded message, fills up ControllerInbox
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => LargeMessageSize);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(LargeMessageSize).CopyTo(data);
return(LargeMessageSize);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Client2 unsharded message, gets BufferFull response
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => ClientServerMessage.PayloadStart); // minimal valid message size
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(ClientServerMessage.PayloadStart).CopyTo(data);
return(ClientServerMessage.PayloadStart);
});
socket.ExpectConnected(() => true);
socket.ExpectSend(data =>
{
Assert.Equal(ClientServerMessage.PayloadStart, data.Length);
Assert.Equal(data[13], (int)MessageType.ServerBusy);
return(ClientServerMessage.PayloadStart);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
var dispatcher = new Dispatcher(queue, 3, BoundedInbox.Create(), new BoundedInbox[64],
BoundedInbox.Create());
queue.Enqueue(client1);
queue.Enqueue(client2);
dispatcher.DequeueNewClients();
// Client1 empty inbox, Client2 LargeMessageSize bytes unsharded
dispatcher.ListenToConnections();
// Client1 LargeMessageSize bytes unsharded, Client2 10 bytes, error message
dispatcher.ListenToConnections();
socket.ExpectAllDone();
}
public void FillShardedInboxes()
{
var queue = new ConcurrentQueue <ClientConnection>();
var socket = new MockSocket();
var client1 = new ClientConnection(socket, ClientId.Next(), 100);
var client2 = new ClientConnection(socket, ClientId.Next(), 100);
BoundedInbox[] threadInboxes =
{
BoundedInbox.Create(), BoundedInbox.Create()
};
var dispatcher = new Dispatcher(queue, 3, BoundedInbox.Create(),
threadInboxes, BoundedInbox.Create());
// Client1 sharded message
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => LargeMessageSize);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(LargeMessageSize).CopyTo(data);
data[ClientServerMessage.ShardedIndStart] = 0xFF; // 0xFF: all bits set to one, so "sharded" is set to 1 for sure
data[ClientServerMessage.PayloadStart] = 0x01;
return(LargeMessageSize);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Client2 sharded message
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => LargeMessageSize);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(LargeMessageSize).CopyTo(data);
data[12] = 0xFF;
return(LargeMessageSize);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Client1 sharded message, fills up first sharded inbox
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => LargeMessageSize);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(LargeMessageSize).CopyTo(data);
data[ClientServerMessage.ShardedIndStart] = 0xFF; // 0xFF: all bits set to one, so "sharded" is set to 1 for sure
data[ClientServerMessage.PayloadStart] = 0x00;
return(LargeMessageSize);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Client2 sharded message, fills up second sharded inbox
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => LargeMessageSize);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(LargeMessageSize).CopyTo(data);
data[ClientServerMessage.ShardedIndStart] = 0xFF; // 0xFF: all bits set to one, so "sharded" is set to 1 for sure
data[ClientServerMessage.PayloadStart] = 0x01;
return(LargeMessageSize);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Read and get error message server busy writing into second sharded inbox
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 20);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(20).CopyTo(data);
data[ClientServerMessage.ShardedIndStart] = 0xFF;
data[ClientServerMessage.PayloadStart] = 0x01;
return(20);
});
socket.ExpectConnected(() => true);
socket.ExpectSend(data =>
{
Assert.Equal(ClientServerMessage.PayloadStart, data.Length);
Assert.Equal(data[13], (byte)MessageType.ServerBusy);
return(ClientServerMessage.PayloadStart);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
// Read and get error message server busy writing into first sharded inbox
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 20);
socket.ExpectReceive(data =>
{
data.Clear();
BitConverter.GetBytes(20).CopyTo(data);
data[ClientServerMessage.ShardedIndStart] = 0xFF; // 0xFF: all bits set to one, so "sharded" is set to 1 for sure
data[ClientServerMessage.PayloadStart] = 0x00;
return(20);
});
socket.ExpectConnected(() => true);
socket.ExpectSend(data =>
{
Assert.Equal(ClientServerMessage.PayloadStart, data.Length);
Assert.Equal(MessageType.ServerBusy, ClientServerMessage.GetMessageType(data));
return(ClientServerMessage.PayloadStart);
});
socket.ExpectConnected(() => true);
socket.ExpectAvailable(() => 0);
queue.Enqueue(client1);
queue.Enqueue(client2);
dispatcher.DequeueNewClients();
// Client1 into sharded inbox 1, Client2 into sharded inbox 2
dispatcher.ListenToConnections();
// Client1 filling up sharded inbox 2, Client2 filling up sharded inbox 1
dispatcher.ListenToConnections();
// Errors when trying to write into any inbox
dispatcher.ListenToConnections();
socket.ExpectAllDone();
}
public ClientConnectionTests()
{
Socket = new MockSocket();
_cc = new ClientConnection(Socket, ClientId.Next(), 4000);
}