public void ShouldWriteBytesCorrectlyIfNotInChunkInTheMiddleOfTheBuffer()
{
var mockClient = new Mock <ITcpSocketClient>();
var mockWriteStream = new Mock <Stream>();
mockClient.Setup(x => x.WriteStream).Returns(mockWriteStream.Object);
var mockLogger = new Mock <ILogger>();
var chunker = new ChunkedOutputStream(mockClient.Object, mockLogger.Object, 10);
byte[] bytes = new byte[3];
for (int i = 0; i < bytes.Length; i++)
{
bytes[i] = (byte)(i + 1);
}
chunker.Write(bytes);
chunker.WriteMessageTail(); // not in chunk
chunker.Write(new byte[] { 0x0A });
chunker.Flush();
byte[] expected1 = { 0x00, 0x03, 0x01, 0x02, 0x03, 0x00, 0x00, 0x00, 0x01, 0x0A };
mockWriteStream.Verify(x => x.Write(expected1, 0, 10), Times.Once);
mockWriteStream.Verify(x => x.Flush(), Times.Exactly(1));
}
public void ShouldWriteTailInCurrentBufferWhenTwoBytesLeftInBuffer()
{
var mockClient = new Mock<ITcpSocketClient>();
var mockWriteStream = new Mock<Stream>();
mockClient.Setup(x => x.WriteStream).Returns(mockWriteStream.Object);
var mockLogger = new Mock<ILogger>();
var chunker = new ChunkedOutputStream(mockClient.Object, mockLogger.Object, 8);
chunker.Write(0x01, 0x02, 0x03, 0x04); //two bytes left
chunker.WriteMessageTail();
chunker.Flush();
byte[] expected1 = { 0x00, 0x04, 0x01, 0x02, 0x03, 0x04, 0x00, 0x00 };
mockWriteStream.Verify(x => x.Write(expected1, 0, 8), Times.Once);
mockWriteStream.Verify(x => x.Flush(), Times.Exactly(1));
}
public void ShouldWriteEachByteCorrectlyIfNotInChunkInTheMiddleOfTheBuffer()
{
var mockClient = new Mock<ITcpSocketClient>();
var mockWriteStream = new Mock<Stream>();
mockClient.Setup(x => x.WriteStream).Returns(mockWriteStream.Object);
var mockLogger = new Mock<ILogger>();
var chunker = new ChunkedOutputStream(mockClient.Object, mockLogger.Object, 10);
chunker.Write(0x01, 0x02, 0x03);
chunker.WriteMessageTail(); // not in chunk
chunker.Write(0x0A);
chunker.Flush();
byte[] expected1 = { 0x00, 0x03, 0x01, 0x02, 0x03, 0x00, 0x00, 0x00, 0x01, 0x0A };
mockWriteStream.Verify(x => x.Write(expected1, 0, 10), Times.Once);
mockWriteStream.Verify(x => x.Flush(), Times.Exactly(1));
}
public void ShouldWriteTailInNextBufferWhenNoPlaceLeftInCurrentBuffer()
{
var mockClient = new Mock<ITcpSocketClient>();
var mockWriteStream = new Mock<Stream>();
mockClient.Setup(x => x.WriteStream).Returns(mockWriteStream.Object);
var mockLogger = new Mock<ILogger>();
var chunker = new ChunkedOutputStream(mockClient.Object, mockLogger.Object, 8);
chunker.Write(0x01, 0x02, 0x03, 0x04, 0x05, 0x06); //no byte left
chunker.WriteMessageTail();
chunker.Flush();
byte[] expected1 = { 0x00, 0x06, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06 };
byte[] expected2 = new byte[8]; // all 0s
mockWriteStream.Verify(x => x.Write(expected1, 0, 8), Times.Once);
mockWriteStream.Verify(x => x.Write(expected2, 0, 2), Times.Once);
mockWriteStream.Verify(x => x.Flush(), Times.Exactly(2));
}
public void ShouldWriteTailCorrectlyWhenNotInChunk()
{
var mockClient = new Mock<ITcpSocketClient>();
var mockWriteStream = new Mock<Stream>();
mockClient.Setup(x => x.WriteStream).Returns(mockWriteStream.Object);
var mockLogger = new Mock<ILogger>();
var chunker = new ChunkedOutputStream(mockClient.Object, mockLogger.Object, 8);
chunker.Write(0x01, 0x02, 0x03, 0x04); // only one byte left
chunker.Flush(); // somehow we get this flushed
chunker.WriteMessageTail();
chunker.Flush();
byte[] expected1 = { 0x00, 0x04, 0x01, 0x02, 0x03, 0x04, 0x00, 0x00 };
byte[] expected2 = new byte[8]; // all 0s
mockWriteStream.Verify(x => x.Write(expected1, 0, 6), Times.Once);
mockWriteStream.Verify(x => x.Write(expected2, 0, 2), Times.Once);
mockWriteStream.Verify(x => x.Flush(), Times.Exactly(2));
}
private void PackMessageTail()
{
_outputStream.WriteMessageTail();
}