public void CopyToAsync_CopiesFromStart_AfterReset(TestStreamInitInfo info)
{
var skippedBytes = info.SegmentSize;
var writeStream = new SegmentWriteStream(info.SegmentSize);
var stream = new SegmentReadStream(info.Segments, info.Length);
stream.Read(new byte[skippedBytes], 0, skippedBytes);
stream.CopyTo(writeStream);
// Assert bytes read from current location to the end
Assert.Equal(stream.Length, stream.Position);
Assert.Equal(stream.Length - skippedBytes, writeStream.Length);
// Reset
stream.Position = 0;
writeStream = new SegmentWriteStream(info.SegmentSize);
stream.CopyTo(writeStream);
Assert.Equal(stream.Length, stream.Position);
Assert.Equal(stream.Length, writeStream.Length);
var writeSegments = writeStream.GetSegments();
for (var i = 0; i < info.Segments.Count; i++)
{
Assert.True(writeSegments[i].SequenceEqual(info.Segments[i]));
}
}
public void Read_CountGreaterThanSegmentSize_CanReadAllBytes(TestStreamInitInfo info)
{
var stream = new SegmentReadStream(info.Segments, info.Length);
var count = info.SegmentSize + 1;
for (var i = 0; i < stream.Length; i += count)
{
var output = new byte[count];
var expectedOutput = new byte[count];
var expectedBytesRead = Math.Min(count, stream.Length - i);
for (var j = 0; j < expectedBytesRead; j++)
{
expectedOutput[j] = (byte)(i + j);
}
Assert.Equal(i, stream.Position);
Assert.Equal(expectedBytesRead, stream.Read(output, 0, count));
Assert.True(expectedOutput.SequenceEqual(output));
}
Assert.Equal(stream.Length, stream.Position);
Assert.Equal(0, stream.Read(new byte[count], 0, count));
Assert.Equal(stream.Length, stream.Position);
}
public void CopyToAsync_CopiesFromCurrentPosition(TestStreamInitInfo info)
{
var skippedBytes = info.SegmentSize;
var writeStream = new SegmentWriteStream((int)info.Length);
var stream = new SegmentReadStream(info.Segments, info.Length);
stream.Read(new byte[skippedBytes], 0, skippedBytes);
stream.CopyTo(writeStream);
Assert.Equal(stream.Length, stream.Position);
Assert.Equal(stream.Length - skippedBytes, writeStream.Length);
var writeSegments = writeStream.GetSegments();
for (var i = skippedBytes; i < info.Length; i++)
{
Assert.Equal(info.Segments[i / info.SegmentSize][i % info.SegmentSize], writeSegments[0][i - skippedBytes]);
}
}