public void WriteShouldThrowExceptionIfAttemptingToWriteBeyondEndOfBuffer()
{
var buffer = new SimpleByteBuffer(8);
buffer.Write(_BunchOfBytes, 0, 4);
buffer.Write(_BunchOfBytes, 4, 8);
}
public void ReadShouldReturnZeroIfNotDataIsAvailable()
{
var buffer = new SimpleByteBuffer(8);
var destination = new byte[16];
buffer.Read(destination, 0, 16).ShouldBe(0);
}
public void WriteShouldWriteBytesToTheBuffer()
{
var buffer = new SimpleByteBuffer(8);
buffer.Write(_BunchOfBytes, 0, 4);
buffer.BufferSize.ShouldBe(8);
buffer.BytesAvailable.ShouldBe(4);
}
public void ReadShouldReturnActualNumberOfBytesRead()
{
var buffer = new SimpleByteBuffer(8);
buffer.Write(_BunchOfBytes, 0, 8);
var destination = new byte[16];
buffer.Read(destination, 0, 16).ShouldBe(8);
}
public void ReadShouldReadBytesFromTheBuffer()
{
var buffer = new SimpleByteBuffer(8);
var destination = new byte[8];
buffer.Write(_BunchOfBytes, 0, 8);
buffer.Read(destination, 0, 8).ShouldBe(8);
Assert2.AreBytesEqual(_BunchOfBytes, 0, destination, 0, 8);
}
public void ReadShouldReadBytesAtSpecifiedOffset()
{
var buffer = new SimpleByteBuffer(8);
var destination = new byte[8];
buffer.Write(_BunchOfBytes, 0, 8);
buffer.Read(destination, 4, 4).ShouldBe(4);
Assert2.AreBytesEqual(_BunchOfBytes, 0, destination, 4, 4);
}
public void MultipleWritesShouldWriteDataSequentially()
{
var buffer = new SimpleByteBuffer(8);
var destination = new byte[8];
buffer.Write(_BunchOfBytes, 0, 4);
buffer.Write(_BunchOfBytes, 4, 4);
buffer.Read(destination, 0, 8).ShouldBe(8);
Assert2.AreBytesEqual(_BunchOfBytes, 0, destination, 0, 8);
}
public void MultipleReadsShouldReadDataSequentially()
{
var buffer = new SimpleByteBuffer(8);
var destination1 = new byte[4];
var destination2 = new byte[4];
buffer.Write(_BunchOfBytes, 0, 8);
buffer.Read(destination1, 0, 4).ShouldBe(4);
buffer.Read(destination2, 0, 4).ShouldBe(4);
Assert2.AreBytesEqual(_BunchOfBytes, 0, destination1, 0, 4);
Assert2.AreBytesEqual(_BunchOfBytes, 4, destination2, 0, 4);
}
public void BytesAvailableShouldReturnNumberOfBytesAvailableForReading()
{
var buffer = new SimpleByteBuffer(128);
var destination = new byte[8];
buffer.Write(_BunchOfBytes, 0, 10);
buffer.Read(destination, 0, 4);
buffer.Write(_BunchOfBytes, 0, 20);
buffer.Read(destination, 0, 8);
buffer.Write(_BunchOfBytes, 0, 5);
buffer.Read(destination, 0, 2);
buffer.BytesAvailable.ShouldBe(35 - 14);
}
public void ReadPositionAndWritePositionShouldResetWhenAllBytesAreRead()
{
var buffer = new SimpleByteBuffer(128);
buffer.WritePosition.ShouldBe(0);
buffer.Write(_BunchOfBytes, 0, 10);
buffer.WritePosition.ShouldBe(10);
buffer.Write(_BunchOfBytes, 0, 5);
buffer.WritePosition.ShouldBe(15);
buffer.Write(_BunchOfBytes, 0, 20);
buffer.WritePosition.ShouldBe(35);
var destination = new byte[20];
buffer.ReadPosition.ShouldBe(0);
buffer.Read(destination, 0, 20).ShouldBe(20);
buffer.ReadPosition.ShouldBe(20);
buffer.Read(destination, 0, 5).ShouldBe(5);
buffer.ReadPosition.ShouldBe(25);
buffer.Read(destination, 0, 10).ShouldBe(10);
buffer.WritePosition.ShouldBe(0);
buffer.ReadPosition.ShouldBe(0);
}
