public void CanReadMary()
{
var XZBlock = new XZBlock(CompressedStream, CheckType.CRC64, 8);
Assert.That(Encoding.ASCII.GetBytes("M"), Is.EqualTo(ReadBytes(XZBlock, 1)));
Assert.That(Encoding.ASCII.GetBytes("a"), Is.EqualTo(ReadBytes(XZBlock, 1)));
Assert.That(Encoding.ASCII.GetBytes("ry"), Is.EqualTo(ReadBytes(XZBlock, 2)));
}
public void CanReadPoemWithStreamReader()
{
var XZBlock = new XZBlock(CompressedStream, CheckType.CRC64, 8);
var sr = new StreamReader(XZBlock);
Assert.Equal(sr.ReadToEnd(), Original);
}
public void CanReadMary()
{
var XZBlock = new XZBlock(CompressedStream, CheckType.CRC64, 8);
Assert.Equal(Encoding.ASCII.GetBytes("M"), ReadBytes(XZBlock, 1));
Assert.Equal(Encoding.ASCII.GetBytes("a"), ReadBytes(XZBlock, 1));
Assert.Equal(Encoding.ASCII.GetBytes("ry"), ReadBytes(XZBlock, 2));
}
public void RecordsStreamStartOnInit()
{
using (Stream badStream = new MemoryStream(new byte[] { 1, 2, 3, 4, 5 }))
{
var block = new XZBlock(badStream, CheckType.CRC64, 8);
Assert.That(block.StreamStartPosition, Is.EqualTo(0));
}
}
public void RecordsStreamStartOnInit()
{
using (Stream badStream = new MemoryStream(new byte[] { 1, 2, 3, 4, 5 }))
{
var block = new XZBlock(badStream, CheckType.CRC64, 8);
Assert.That(block.StreamStartPosition, Is.EqualTo(0));
}
}
private byte[] ReadBytes(XZBlock block, int bytesToRead)
{
byte[] buffer = new byte[bytesToRead];
var read = block.Read(buffer, 0, bytesToRead);
if (read != bytesToRead)
throw new EndOfStreamException();
return buffer;
}
public void SkipsPaddingWhenPresent()
{
// CompressedIndexedStream's first block has 1-byte padding.
var XZBlock = new XZBlock(CompressedIndexedStream, CheckType.CRC64, 8);
var sr = new StreamReader(XZBlock);
sr.ReadToEnd();
Assert.Equal(0L, CompressedIndexedStream.Position % 4L);
}
public void NoopWhenNoPadding()
{
// CompressedStream's only block has no padding.
var XZBlock = new XZBlock(CompressedStream, CheckType.CRC64, 8);
var sr = new StreamReader(XZBlock);
sr.ReadToEnd();
Assert.Equal(0L, CompressedStream.Position % 4L);
}
public void OnFindIndexBlockThrow()
{
var bytes = new byte[] { 0 };
using (Stream indexBlockStream = new MemoryStream(bytes))
{
var XZBlock = new XZBlock(indexBlockStream, CheckType.CRC64, 8);
Assert.Throws<XZIndexMarkerReachedException>(() => { ReadBytes(XZBlock, 1); });
}
}
public void OnFindIndexBlockThrow()
{
var bytes = new byte[] { 0 };
using (Stream indexBlockStream = new MemoryStream(bytes))
{
var XZBlock = new XZBlock(indexBlockStream, CheckType.CRC64, 8);
Assert.Throws <XZIndexMarkerReachedException>(() => { ReadBytes(XZBlock, 1); });
}
}
private byte[] ReadBytes(XZBlock block, int bytesToRead)
{
byte[] buffer = new byte[bytesToRead];
var read = block.Read(buffer, 0, bytesToRead);
if (read != bytesToRead)
{
throw new EndOfStreamException();
}
return(buffer);
}
public void CrcIncorrectThrows()
{
var bytes = Compressed.Clone() as byte[];
bytes[20]++;
using (Stream badCrcStream = new MemoryStream(bytes))
{
Rewind(badCrcStream);
var XZBlock = new XZBlock(badCrcStream, CheckType.CRC64, 8);
var ex = Assert.Throws<InvalidDataException>(() => { ReadBytes(XZBlock, 1); });
Assert.That(ex.Message, Is.EqualTo("Block header corrupt"));
}
}
public void CrcIncorrectThrows()
{
var bytes = Compressed.Clone() as byte[];
bytes[20]++;
using (Stream badCrcStream = new MemoryStream(bytes))
{
Rewind(badCrcStream);
var XZBlock = new XZBlock(badCrcStream, CheckType.CRC64, 8);
var ex = Assert.Throws <InvalidDataException>(() => { ReadBytes(XZBlock, 1); });
Assert.Equal("Block header corrupt", ex.Message);
}
}
public void CanReadM()
{
var XZBlock = new XZBlock(CompressedStream, CheckType.CRC64, 8);
Assert.That(Encoding.ASCII.GetBytes("M"), Is.EqualTo(ReadBytes(XZBlock, 1)));
}
public void CanReadPoemWithStreamReader()
{
var XZBlock = new XZBlock(CompressedStream, CheckType.CRC64, 8);
var sr = new StreamReader(XZBlock);
Assert.That(sr.ReadToEnd(), Is.EqualTo(Original));
}
