public void Decompress()
{
object instance = CreateInstance <NtfsFileSystem>("DiscUtils.Ntfs.LZNT1");
BlockCompressor compressor = (BlockCompressor)instance;
byte[] compressed = NativeCompress(_uncompressedData, 0, _uncompressedData.Length, 4096);
// Double-check, make sure native code round-trips
Assert.Equal(_uncompressedData, NativeDecompress(compressed, 0, compressed.Length));
byte[] decompressed = new byte[_uncompressedData.Length];
int numDecompressed = compressor.Decompress(compressed, 0, compressed.Length, decompressed, 0);
Assert.Equal(numDecompressed, _uncompressedData.Length);
Assert.Equal(_uncompressedData, decompressed);
}
public void DecompressMidDestBuffer()
{
object instance = typeof(NtfsFileSystem).Assembly.CreateInstance("DiscUtils.Ntfs.LZNT1");
BlockCompressor compressor = (BlockCompressor)instance;
byte[] compressed = NativeCompress(_uncompressedData, 0, _uncompressedData.Length, 4096);
// Double-check, make sure native code round-trips
Assert.AreEqual(_uncompressedData, NativeDecompress(compressed, 0, compressed.Length));
byte[] outData = new byte[128 * 1024];
int numDecompressed = compressor.Decompress(compressed, 0, compressed.Length, outData, 32 * 1024);
Assert.AreEqual(numDecompressed, _uncompressedData.Length);
byte[] decompressed = new byte[_uncompressedData.Length];
Array.Copy(outData, 32 * 1024, decompressed, 0, _uncompressedData.Length);
Assert.AreEqual(_uncompressedData, decompressed);
}
public void RunsDecompressionForEachBlock()
{
const int byteCount = 8;
var format = new Mock <IBlockCompressionFormat>();
format.Setup(f => f.BlockSize).Returns(byteCount);
format.Setup(f => f.Decompress(It.IsAny <byte[]>())).Returns(new Color[BlockFormat.TexelCount]);
var compressor = new BlockCompressor();
compressor.Decompress(CreateDDSImageMock(format.Object));
format.Verify(f => f.Decompress(It.IsAny <byte[]>()), Times.Exactly(6));
format.Verify(f => f.Decompress(It.Is <byte[]>(bytes => bytes.All(b => b == 1))));
format.Verify(f => f.Decompress(It.Is <byte[]>(bytes => bytes.All(b => b == 2))));
format.Verify(f => f.Decompress(It.Is <byte[]>(bytes => bytes.All(b => b == 3))));
format.Verify(f => f.Decompress(It.Is <byte[]>(bytes => bytes.All(b => b == 4))));
format.Verify(f => f.Decompress(It.Is <byte[]>(bytes => bytes.All(b => b == 5))));
format.Verify(f => f.Decompress(It.Is <byte[]>(bytes => bytes.All(b => b == 6))));
}
