public void LargeMessageTest()
{
var state = new TcpServer.NetworkMessage();
Random rand = new Random();
var message = new byte[2000];
rand.NextBytes(message);
var msgSize = message.Length;
var sizeBytes = BitConverter.GetBytes(msgSize);
var firstPart = new byte[1000];
firstPart[0] = sizeBytes[0];
firstPart[1] = sizeBytes[1];
firstPart[2] = sizeBytes[2];
firstPart[3] = sizeBytes[3];
Buffer.BlockCopy(message, 0, firstPart, 4, firstPart.Length - 4);
var secondPart = new byte[message.Length - firstPart.Length + 4];
Buffer.BlockCopy(message, firstPart.Length - 4, secondPart, 0, secondPart.Length);
state.Reset();
Buffer.BlockCopy(firstPart, 0, state.Buffer, 0, firstPart.Length);
state.ConsumeBuffer(firstPart.Length);
Buffer.BlockCopy(secondPart, 0, state.Buffer, 0, secondPart.Length);
state.ConsumeBuffer(secondPart.Length);
Assert.IsTrue(state.IsValidMessage);
Assert.AreEqual(msgSize, state.MessageSize);
var stateMessage = new byte[state.MessageSize];
Buffer.BlockCopy(state.Message, 0, stateMessage, 0, state.MessageSize);
CollectionAssert.AreEqual(message, stateMessage);
}
public void DividedTest()
{
var state = new TcpServer.NetworkMessage();
var strmsg = "Hello world";
var message = Encoding.UTF8.GetBytes(strmsg);
var msgSize = message.Length;
var sizeBytes = BitConverter.GetBytes(msgSize);
var firstPart = new byte[2];
Buffer.BlockCopy(sizeBytes, 0, firstPart, 0, 2);
var secondSize = message.Length/2;
var secondPart = new byte[secondSize + 2];
Buffer.BlockCopy(sizeBytes, 2, secondPart, 0, 2);
Buffer.BlockCopy(message, 0, secondPart, 2, secondSize);
var lastSize = message.Length - secondSize;
var lastPart = new byte[lastSize];
Buffer.BlockCopy(message, secondSize, lastPart, 0, lastSize);
state.Reset();
Buffer.BlockCopy(firstPart, 0, state.Buffer, 0, firstPart.Length);
state.ConsumeBuffer(firstPart.Length);
Buffer.BlockCopy(secondPart, 0, state.Buffer, 0, secondPart.Length);
state.ConsumeBuffer(secondPart.Length);
Buffer.BlockCopy(lastPart, 0, state.Buffer, 0, lastPart.Length);
state.ConsumeBuffer(lastPart.Length);
Assert.IsTrue(state.IsValidMessage);
Assert.AreEqual(state.MessageSize, msgSize);
var result = Encoding.UTF8.GetString(state.Message, 0, state.MessageSize);
Assert.AreEqual(strmsg, result);
}