public void ReadLine_WrapAround2()
{
MockSocket socket = new MockSocket();
socket.AddResponse("test\n1");
socket.AddResponse("2\n34");
socket.AddResponse("56\n");
var reader = new BufferedLineReader(socket.Receive, 10);
string result = reader.ReadLine();
Assert.AreEqual("test\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("12\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("3456\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
/// <summary>
/// Attempts to establish a connection with the i2cproxy running on the robot.
/// </summary>
/// <exception cref="InvalidOperationException">If Host, CommandPort or PollPort aren't setup correctly, or is not in the Disconnected state.</exception>
/// <returns>True if successful, false otherwise.</returns>
public bool Connect()
{
if (String.IsNullOrEmpty(Host))
{
throw new InvalidOperationException("Host hasn't been set.");
}
if (CommandPort == 0)
{
throw new InvalidOperationException("CommandPort hasn't been set.");
}
if (PollPort == 0)
{
throw new InvalidOperationException("PollPort hasn't been set.");
}
lock (stateLock)
{
if (State != BusState.Disconnected)
{
throw new InvalidOperationException("Can't connect unless in the disconnected state.");
}
State = BusState.Connecting;
}
Debug.WriteLine(String.Format("Creating command socket: host={0}, port={1}", Host, CommandPort));
commandSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
commandSocket.ReceiveTimeout = 5000;
commandSocket.SendTimeout = 5000;
try { commandSocket.Connect(Host, CommandPort); }
catch (SocketException e)
{
Debug.WriteLine(String.Format("Couldn't connect to {0}:{1}. The error was: {2}", Host, CommandPort, e.Message));
lock (stateLock) State = BusState.Disconnected;
commandSocket.Close();
return(false);
}
commandLineReader = new BufferedLineReader((buffer, index, count) => commandSocket.Receive(buffer, index, count, SocketFlags.None), CommandSocketBufferSize);
Debug.WriteLine(String.Format("Creating poll socket: host={0}, port={1}", Host, PollPort));
pollSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
pollSocket.SendTimeout = 5000;
try { pollSocket.Connect(Host, PollPort); }
catch (SocketException e)
{
Debug.WriteLine(String.Format("Couldn't connect to {0}:{1}. The error was: {2}", Host, PollPort, e.Message));
lock (stateLock) State = BusState.Disconnected;
pollSocket.Close();
commandSocket.Close();
return(false);
}
pollLineReader = new BufferedLineReader((buffer, index, count) => ReadFromSocket(pollSocket, buffer, index, count), PollSocketBufferSize);
lock (stateLock) State = BusState.Connected;
channelConnectEvent.Set();
Debug.WriteLine("Connected");
return(true);
}
public void ReadLine_OverflowsBuffer_ThrowsException()
{
MockSocket socket = new MockSocket();
socket.AddResponse("12345");
socket.AddResponse("67890");
socket.AddResponse("\n");
var reader = new BufferedLineReader(socket.Receive, 10);
string result = reader.ReadLine();
}
public void ReadLine_OverflowsBuffer_ThrowsException()
{
MockSocket socket = new MockSocket();
socket.AddResponse("12345");
socket.AddResponse("67890");
socket.AddResponse("\n");
var reader = new BufferedLineReader(socket.Receive, 10);
string result = reader.ReadLine();
}
public void ReadLine_FillBuffer()
{
MockSocket socket = new MockSocket();
socket.AddResponse("123456789\n");
var reader = new BufferedLineReader(socket.Receive, 10);
string result = reader.ReadLine();
Assert.AreEqual("123456789\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
public void ReadLine_FillBuffer()
{
MockSocket socket = new MockSocket();
socket.AddResponse("123456789\n");
var reader = new BufferedLineReader(socket.Receive, 10);
string result = reader.ReadLine();
Assert.AreEqual("123456789\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
public void ReadLine_OneLineInMultiplePieces()
{
MockSocket socket = new MockSocket();
socket.AddResponse("te");
socket.AddResponse("st\n");
var reader = new BufferedLineReader(socket.Receive, 20);
string result = reader.ReadLine();
Assert.AreEqual("test\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
public void ReadLine_OneLineInMultiplePieces()
{
MockSocket socket = new MockSocket();
socket.AddResponse("te");
socket.AddResponse("st\n");
var reader = new BufferedLineReader(socket.Receive, 20);
string result = reader.ReadLine();
Assert.AreEqual("test\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
public void ReadLine_RandomTest()
{
// Generate some random test data.
random = new Random(RandomSeed);
int countTillNextLine = random.Next() % MaxLineLength;
for (int i = 0; i < SendBufferSize - 1; i++)
{
if (countTillNextLine-- > 0)
{
sendBuffer[i] = (byte)((random.Next() % 26) + 65);
}
else
{
sendBuffer[i] = 10;
countTillNextLine = random.Next() % MaxLineLength;
}
}
sendBuffer[SendBufferSize - 1] = 10;
// Setup a line reader.
var reader = new BufferedLineReader(ReadTestData, CircularBufferSize);
int startOfNextExpectedLine = 0, numLines = 0;
while (true)
{
string result = reader.ReadLine();
if (result == null)
{
break;
}
Assert.IsTrue(result.EndsWith("\n"));
int expectedEndOfLine = Array.IndexOf(sendBuffer, (byte)10, startOfNextExpectedLine, SendBufferSize - startOfNextExpectedLine);
int expectedLength = expectedEndOfLine - startOfNextExpectedLine + 1;
Assert.AreEqual(expectedLength, result.Length);
string expectedResult = ASCIIEncoding.ASCII.GetString(sendBuffer, startOfNextExpectedLine, expectedEndOfLine - startOfNextExpectedLine + 1);
Assert.AreEqual(expectedResult, result);
startOfNextExpectedLine += expectedLength;
numLines++;
}
Assert.IsTrue(startOfNextExpectedLine == SendBufferSize);
}
public void ReadLine_ToTheEndOfTheBuffer()
{
MockSocket socket = new MockSocket();
socket.AddResponse("TEST\ntest");
socket.AddResponse("\n");
var reader = new BufferedLineReader(socket.Receive, 10);
string result = reader.ReadLine();
Assert.AreEqual("TEST\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("test\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
public void ReadLine_ReceiveMultipleLinesAtOnce()
{
MockSocket socket = new MockSocket();
socket.AddResponse("test1\ntest2\ntest3\n");
var reader = new BufferedLineReader(socket.Receive, 20);
string result = reader.ReadLine();
Assert.AreEqual("test1\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("test2\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("test3\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
public void ReadLine_RandomTest()
{
// Generate some random test data.
random = new Random(RandomSeed);
int countTillNextLine = random.Next() % MaxLineLength;
for (int i = 0; i < SendBufferSize-1; i++)
if (countTillNextLine-- > 0)
sendBuffer[i] = (byte)((random.Next() % 26) + 65);
else
{
sendBuffer[i] = 10;
countTillNextLine = random.Next() % MaxLineLength;
}
sendBuffer[SendBufferSize - 1] = 10;
// Setup a line reader.
var reader = new BufferedLineReader(ReadTestData, CircularBufferSize);
int startOfNextExpectedLine = 0, numLines = 0;
while (true)
{
string result = reader.ReadLine();
if (result == null) break;
Assert.IsTrue(result.EndsWith("\n"));
int expectedEndOfLine = Array.IndexOf(sendBuffer, (byte)10, startOfNextExpectedLine, SendBufferSize - startOfNextExpectedLine);
int expectedLength = expectedEndOfLine - startOfNextExpectedLine + 1;
Assert.AreEqual(expectedLength, result.Length);
string expectedResult = ASCIIEncoding.ASCII.GetString(sendBuffer, startOfNextExpectedLine, expectedEndOfLine - startOfNextExpectedLine + 1);
Assert.AreEqual(expectedResult, result);
startOfNextExpectedLine += expectedLength;
numLines++;
}
Assert.IsTrue(startOfNextExpectedLine == SendBufferSize);
}
public void ReadLine_WrapAround2()
{
MockSocket socket = new MockSocket();
socket.AddResponse("test\n1");
socket.AddResponse("2\n34");
socket.AddResponse("56\n");
var reader = new BufferedLineReader(socket.Receive, 10);
string result = reader.ReadLine();
Assert.AreEqual("test\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("12\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("3456\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
public void ReadLine_ToTheEndOfTheBuffer()
{
MockSocket socket = new MockSocket();
socket.AddResponse("TEST\ntest");
socket.AddResponse("\n");
var reader = new BufferedLineReader(socket.Receive, 10);
string result = reader.ReadLine();
Assert.AreEqual("TEST\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("test\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
public void ReadLine_ReceiveMultipleLinesAtOnce()
{
MockSocket socket = new MockSocket();
socket.AddResponse("test1\ntest2\ntest3\n");
var reader = new BufferedLineReader(socket.Receive, 20);
string result = reader.ReadLine();
Assert.AreEqual("test1\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("test2\n", result);
Assert.IsFalse(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
result = reader.ReadLine();
Assert.AreEqual("test3\n", result);
Assert.IsTrue(reader.IsEmpty);
Assert.IsFalse(reader.IsFull);
}
/// <summary>
/// Attempts to establish a connection with the i2cproxy running on the robot.
/// </summary>
/// <exception cref="InvalidOperationException">If Host, CommandPort or PollPort aren't setup correctly, or is not in the Disconnected state.</exception>
/// <returns>True if successful, false otherwise.</returns>
public bool Connect()
{
if (String.IsNullOrEmpty(Host)) throw new InvalidOperationException("Host hasn't been set.");
if (CommandPort == 0) throw new InvalidOperationException("CommandPort hasn't been set.");
if (PollPort == 0) throw new InvalidOperationException("PollPort hasn't been set.");
lock (stateLock)
{
if (State != BusState.Disconnected) throw new InvalidOperationException("Can't connect unless in the disconnected state.");
State = BusState.Connecting;
}
Debug.WriteLine(String.Format("Creating command socket: host={0}, port={1}", Host, CommandPort));
commandSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
commandSocket.ReceiveTimeout = 5000;
commandSocket.SendTimeout = 5000;
try { commandSocket.Connect(Host, CommandPort); }
catch (SocketException e)
{
Debug.WriteLine(String.Format("Couldn't connect to {0}:{1}. The error was: {2}", Host, CommandPort, e.Message));
lock (stateLock) State = BusState.Disconnected;
commandSocket.Close();
return false;
}
commandLineReader = new BufferedLineReader((buffer, index, count) => commandSocket.Receive(buffer, index, count, SocketFlags.None), CommandSocketBufferSize);
Debug.WriteLine(String.Format("Creating poll socket: host={0}, port={1}", Host, PollPort));
pollSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
pollSocket.SendTimeout = 5000;
try { pollSocket.Connect(Host, PollPort); }
catch (SocketException e)
{
Debug.WriteLine(String.Format("Couldn't connect to {0}:{1}. The error was: {2}", Host, PollPort, e.Message));
lock (stateLock) State = BusState.Disconnected;
pollSocket.Close();
commandSocket.Close();
return false;
}
pollLineReader = new BufferedLineReader((buffer, index, count) => ReadFromSocket(pollSocket, buffer, index, count), PollSocketBufferSize);
lock (stateLock) State = BusState.Connected;
channelConnectEvent.Set();
Debug.WriteLine("Connected");
return true;
}
