private void TestRandomSeekOperation(AlignedStreamBase alignedStream, Stream dataStream, long offset, SeekOrigin origin)
{
switch (origin)
{
case SeekOrigin.Begin:
break;
case SeekOrigin.Current:
offset -= dataStream.Position;
break;
case SeekOrigin.End:
offset -= dataStream.Length;
break;
default:
Assert.Fail("Invalid seek origin");
break;
}
long dataPosition = dataStream.Seek(offset, origin);
long alignedPosition = alignedStream.Seek(offset, origin);
Assert.AreEqual(alignedPosition, dataPosition, "Position mismatch");
Assert.AreEqual(alignedStream.Position, dataStream.Position, "Position mismatch");
Assert.AreEqual(alignedStream.Length, dataStream.Length, "Length mismatch");
}
private void TestRandomSeekOperation(AlignedStreamBase alignedStream, Stream dataStream, int offsetUpperBound)
{
int offset = Random.Next(offsetUpperBound);
if (0 == Random.Next(2))
{
offset -= (offset % alignedStream.AlignmentSize);
}
SeekOrigin origin = (SeekOrigin)Random.Next(3);
this.TestRandomSeekOperation(alignedStream, dataStream, offset, origin);
}
