public void Fifo()
{
// tiny buffer capacity so that we can test the different methods with buffer breakover
var buffer = new LinkedFifoBuffer <byte>(4);
var position = buffer.HeadPosition;
for (byte i = 1; i <= 4; i++)
{
LinkedFifoBuffer <byte> .Write(ref buffer, i);
// no breakover
Assert.Same(position.Buffer, buffer);
}
Assert.Equal(4, position.Count());
Assert.Equal(4, position.AvailableCount());
LinkedFifoBuffer <byte> .Write(ref buffer, 5);
Assert.Equal(5, position.Count());
Assert.Equal(5, position.AvailableCount());
Assert.NotSame(position.Buffer, buffer);
Assert.Equal(ByteRange(1, 5), position);
position = position.Advance(4);
Assert.NotSame(position.Buffer, buffer);
Assert.Equal(ByteRange(5, 1), position);
position = position.Advance(1);
Assert.Same(position.Buffer, buffer);
Assert.Empty(position);
LinkedFifoBuffer <byte> .Write(ref buffer, ByteRange(6, 3));
Assert.Same(position.Buffer, buffer);
LinkedFifoBuffer <byte> .Write(ref buffer, ByteRange(9, 10));
Assert.NotSame(position.Buffer, buffer);
Assert.Equal(ByteRange(6, 13), position);
position = position.Advance(12);
Assert.Same(position.Buffer, buffer);
Assert.Equal(ByteRange(18, 1), position);
position = position.Advance(1);
Assert.Empty(position);
}
