public void ReceiveData_Multiple()
{
var receivedMessages = new List <string>();
var maxMessageSize = 10;
var framer = new NullTerminationFramer(maxMessageSize);
framer.MessageReceived += (msg => receivedMessages.Add(msg));
// Create messages
var message1 = "12345";
var message2 = "567";
var message3 = "foobar";
// Put messages into one array
var dataList = new List <byte>();
dataList.AddRange(framer.Frame(message1));
dataList.AddRange(framer.Frame(message2));
dataList.AddRange(framer.Frame(message3));
// Receive the array
var data = dataList.ToArray();
framer.ReceiveData(data, data.Length);
// Check
Assert.Equal(3, receivedMessages.Count);
Assert.Equal(message1, receivedMessages[0]);
Assert.Equal(message2, receivedMessages[1]);
Assert.Equal(message3, receivedMessages[2]);
}
public void ReceiveData_FragmentedInvalid()
{
var receivedMessages = new List <string>();
var maxMessageSize = 10;
var framer = new NullTerminationFramer(maxMessageSize);
framer.MessageReceived += (msg => receivedMessages.Add(msg));
// Create messages
var message1 = "12345";
var message2 = "567";
var message3 = "foobar too long";
var message4 = "foobar";
// Put messages into one array
var dataList = new List <byte>();
dataList.AddRange(framer.Frame(message1));
dataList.AddRange(framer.Frame(message2));
dataList.AddRange(Encoding.UTF8.GetBytes(message3 + '\0'));
dataList.AddRange(framer.Frame(message4));
// Receive data step by step
var steps = 3;
for (var i = 0; i < dataList.Count; i += steps)
{
var take = Math.Min(dataList.Count - i, steps);
if (take < 0)
{
continue;
}
var data = dataList.Skip(i).Take(take).ToArray();
if (i < 18)
{
framer.ReceiveData(data, data.Length);
}
else
{
Assert.Throws <InvalidMessageSizeException>(() => framer.ReceiveData(data, data.Length));
break;
}
}
// Check
// After the third message failed due an exception for being
// too long, we should've received only the first two.
Assert.Equal(2, receivedMessages.Count);
Assert.Equal(message1, receivedMessages[0]);
Assert.Equal(message2, receivedMessages[1]);
}
public void ReceiveData_Single()
{
string receivedMessage = null;
var maxMessageSize = 10;
var framer = new NullTerminationFramer(maxMessageSize);
framer.MessageReceived += (msg => receivedMessage = msg);
var message = "12345";
var data = framer.Frame(message);
framer.ReceiveData(data, data.Length);
Assert.Equal(message, receivedMessage);
}
public void ReceiveData_Fragmented()
{
var receivedMessages = new List <string>();
var maxMessageSize = 10;
var framer = new NullTerminationFramer(maxMessageSize);
framer.MessageReceived += (msg => receivedMessages.Add(msg));
// Check receiving a different amount of bytes each time
foreach (var steps in new int[] { 1, 2, 3, 4, 5 })
{
// Create messages
var message1 = "12345";
var message2 = "567";
var message3 = "foobar";
// Put messages into one array
var dataList = new List <byte>();
dataList.AddRange(framer.Frame(message1));
dataList.AddRange(framer.Frame(message2));
dataList.AddRange(framer.Frame(message3));
// Receive data step by step
for (var i = 0; i < dataList.Count; i += steps)
{
var take = Math.Min(dataList.Count - i, steps);
if (take < 0)
{
continue;
}
var data = dataList.Skip(i).Take(take).ToArray();
framer.ReceiveData(data, data.Length);
}
// Check
Assert.Equal(3, receivedMessages.Count);
Assert.Equal(message1, receivedMessages[0]);
Assert.Equal(message2, receivedMessages[1]);
Assert.Equal(message3, receivedMessages[2]);
receivedMessages.Clear();
}
}
public void Frame()
{
var maxMessageSize = 10;
var framer = new NullTerminationFramer(maxMessageSize);
// Check result
var message = new byte[] { 1, 2, 3, 4, 5 };
Assert.Equal(new byte[] { 1, 2, 3, 4, 5, 0 }, framer.Frame(message));
var messageStr = "12345";
Assert.Equal(Encoding.UTF8.GetBytes("12345\0"), framer.Frame(messageStr));
// Check max size exception
var invalidMessage = new byte[maxMessageSize + 1];
Assert.Throws <InvalidMessageSizeException>(() => framer.Frame(invalidMessage));
}
