public void SocketReader_ReadChar_KeepsWaitingIfNotEnoughDataIsReturned()
{
// Arrange
byte[] sendBuffer = Encoding.UTF32.GetBytes("ΨΣ"); // Greek Psi, Sigma
MockSocketAdapter socket = new MockSocketAdapter();
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(Encoding.UTF32);
// Act
Task <char> result = reader.ReadChar(_dontCancel); // Try to read first character
// Assert
TaskAssert.NotCompleted(result, "Before sending any bytes");
// Act
socket.SendBytes(sendBuffer, 0, 1); // Send 1 byte
// Assert
TaskAssert.NotCompleted(result, "After sending 1 byte");
// Act
socket.SendBytes(sendBuffer, 1, 2); // Send 2 more bytes
// Assert
TaskAssert.NotCompleted(result, "After sending 2 more bytes");
// Act
socket.SendBytes(sendBuffer, 3, 2); // Send 2 more bytes
// Assert
TaskAssert.ResultEquals(result, 'Ψ', "After sending all bytes of first character.");
// Act
result = reader.ReadChar(_dontCancel); // Try to read second character
// Assert
TaskAssert.NotCompleted(result, "Before sending remaining bytes");
// Act
socket.SendBytes(sendBuffer, 5, 3); // Send remaining 3 bytes
// Assert
TaskAssert.ResultEquals(result, 'Σ', "After sending remaining bytes");
}
public void SocketReader_ReadChar_DoesNotWaitForDataReadingSecondCharacter()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString("ab", Encoding.UTF8);
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(Encoding.UTF8);
Task <char> result1 = reader.ReadChar(_dontCancel);
TaskAssert.ResultEquals(result1, 'a', "SocketReader did not read the first character in the buffer.");
// Act
Task <char> result2 = reader.ReadChar(_dontCancel);
// Assert
TaskAssert.ResultEquals(result2, 'b');
}
public void SocketReader_ReadChar_ReturnsZeroIfCancelled()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
CancellationTokenSource cts = new CancellationTokenSource();
SocketReader reader = new SocketReader(socket);
Task <char> task = reader.ReadChar(cts.Token);
// Act
cts.Cancel();
// Assert
TaskAssert.ResultEquals(task, '\0');
}
public void SocketReader_ReadChar_ReadsOneCharacter()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
socket.SendString("ab", Encoding.Unicode);
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(Encoding.Unicode);
// Act
Task <char> result = reader.ReadChar(_dontCancel);
// Assert
TaskAssert.ResultEquals(result, 'a');
}
public void SocketReader_ReadChar_WaitsForDataReadingOneCharacter()
{
// Arrange
MockSocketAdapter socket = new MockSocketAdapter();
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(Encoding.Unicode);
// Act
Task <char> result = reader.ReadChar(_dontCancel);
// Assert
TaskAssert.NotCompleted(result, "Before sending data");
// Act
socket.SendString("ab", Encoding.Unicode);
// Assert
TaskAssert.ResultEquals(result, 'a', "After sending data");
}
public void SocketReader_ReadChar_TestByteByByteWithManyEncodings()
{
// Arrange
Encoding[] encodings = new Encoding[]
{
Encoding.UTF8,
Encoding.Unicode,
Encoding.BigEndianUnicode,
Encoding.UTF32
};
foreach (Encoding encoding in encodings)
{
MockSocketAdapter socket = new MockSocketAdapter();
SocketReader reader = new SocketReader(socket);
reader.SetEncoding(encoding);
byte[] sendBuffer = encoding.GetBytes("ΨΣ");
Task <char>[] results = new Task <char> [2];
int currentResult = -1;
for (int i = 0; i < sendBuffer.Length; i++)
{
if (currentResult < 0 || results[currentResult].IsCompleted)
{
currentResult++;
results[currentResult] = reader.ReadChar(_dontCancel);
}
socket.SendBytes(sendBuffer, i, 1);
}
TaskAssert.ResultEquals(results[0], 'Ψ', "result[0] with encoding {0}", encoding.EncodingName);
TaskAssert.ResultEquals(results[1], 'Σ', "result[1] with encoding {0}", encoding.EncodingName);
}
}
