public void CanSeekFromTheCurrentStreamPosition()
{
var stream = new ReadOnlyByteBufferStream(this.testBuffer, false);
long position = stream.Seek(0, SeekOrigin.Current);
Assert.Equal(0, position);
Assert.Equal(position, stream.Position);
position = stream.Seek(2, SeekOrigin.Current);
Assert.Equal(2, position);
Assert.Equal(position, stream.Position);
int relativeEnd = this.testBuffer.WriterIndex - (int)position;
position = stream.Seek(relativeEnd, SeekOrigin.Current);
Assert.Equal(this.testBuffer.WriterIndex, position);
Assert.Equal(position, stream.Position);
}
public void CanSeekFromTheBeginningOfTheStream()
{
var stream = new ReadOnlyByteBufferStream(this.testBuffer, false);
stream.Position = this.testBuffer.WriterIndex / 2; // ensure seek calcs don't depend on read pos
long position = stream.Seek(0, SeekOrigin.Begin);
Assert.Equal(0, position);
Assert.Equal(position, stream.Position);
position = stream.Seek(2, SeekOrigin.Begin);
Assert.Equal(2, position);
Assert.Equal(position, stream.Position);
position = stream.Seek(this.testBuffer.WriterIndex, SeekOrigin.Begin);
Assert.Equal(this.testBuffer.WriterIndex, position);
Assert.Equal(position, stream.Position);
}
public void StreamIsSeekable()
{
var stream = new ReadOnlyByteBufferStream(this.testBuffer, false);
Assert.True(stream.CanSeek);
}
public void CannotSetThePositionPastTheEndOfTheBuffer()
{
var stream = new ReadOnlyByteBufferStream(this.testBuffer, false);
Assert.Throws <IndexOutOfRangeException>(() => stream.Position = this.testBuffer.WriterIndex + 1);
}
public void CanGetTheStreamLength()
{
var stream = new ReadOnlyByteBufferStream(this.testBuffer, false);
Assert.Equal(this.testBuffer.WriterIndex, stream.Length);
}
