public byte[] DeflateDecompressor_DecompressStream(CompressedSize input)
{
using var decompressed = new MemoryStream();
using var data = new MemoryStream(input.Data);
DeflateDecompressor.Decompress(data, decompressed);
return(decompressed.ToArray());
}
public void Decompress_Grammar()
{
var corpusItem = new CorpusInfo("grammar.lsp");
var decompressed = DeflateDecompressor.Decompress(corpusItem.Compressed);
CollectionAssert.AreEqual(corpusItem.Raw, decompressed);
}
public void Decompress_Kennedy()
{
var corpusItem = new CorpusInfo("kennedy.xls");
var decompressed = DeflateDecompressor.Decompress(corpusItem.Compressed);
CollectionAssert.AreEqual(corpusItem.Raw, decompressed);
}
public void Decompress_Lcet10()
{
var corpusItem = new CorpusInfo("lcet10.txt");
var decompressed = DeflateDecompressor.Decompress(corpusItem.Compressed);
CollectionAssert.AreEqual(corpusItem.Raw, decompressed);
}
public byte[] Burnside_Stream(CorpusInfo input)
{
using var decompressed = new MemoryStream();
using var data = new MemoryStream(input.Data);
DeflateDecompressor.Decompress(data, decompressed);
return(decompressed.ToArray());
}
public void Decompress_Ptt5()
{
var corpusItem = new CorpusInfo("ptt5");
var decompressed = DeflateDecompressor.Decompress(corpusItem.Compressed);
CollectionAssert.AreEqual(corpusItem.Raw, decompressed);
}
public void DecompressString()
{
var data = "thisissomestringdatathatwillbeusedtotestthedecompressionofthealgorithm";
var compressed = Compress(data);
var decompressed = DeflateDecompressor.Decompress(compressed);
Assert.AreEqual(data, Encoding.UTF8.GetString(decompressed));
}
public void StreamDecompress_Random10MiB()
{
using var outStream = new MemoryStream();
using var inStream = new MemoryStream(Compressed_10MiB);
DeflateDecompressor.Decompress(inStream, outStream);
var decompressed = outStream.ToArray();
CollectionAssert.AreEqual(UnCompressed_10MiB, decompressed);
}
public void DeflateCompressorStringExtesionWorks()
{
var compressor = new DeflateCompressor();
var compressed = compressor.Compress("test");
Assert.IsNotNull(compressed);
var decompressor = new DeflateDecompressor();
var decompressed = decompressor.Decompress(compressed);
Assert.IsNotNull(decompressed);
Assert.AreEqual("test", Encoding.UTF8.GetString(decompressed));
}
public void StreamDecompress_Xargs()
{
var corpusItem = new CorpusInfo("xargs.1");
using var outStream = new MemoryStream();
using var inStream = new MemoryStream(corpusItem.Compressed);
DeflateDecompressor.Decompress(inStream, outStream);
var decompressed = outStream.ToArray();
CollectionAssert.AreEqual(corpusItem.Raw, decompressed);
}
public void DeflateCompressorStringExtesionWorks()
{
var compressor = new DeflateCompressor();
var compressed = compressor.Compress("test");
compressed.Should().NotBeNull();
var decompressor = new DeflateDecompressor();
var decompressed = decompressor.Decompress(compressed);
decompressed.Should().NotBeNull();
Encoding.UTF8.GetString(decompressed).Should().Be("test");
}
public void StreamDecompress_String()
{
var data = "thisissomestringdatathatwillbeusedtotestthedecompressionofthealgorithm";
var compressed = Compress(data);
using var outStream = new MemoryStream();
using var inStream = new MemoryStream(compressed);
DeflateDecompressor.Decompress(inStream, outStream);
var decompressed = outStream.ToArray();
Assert.AreEqual(data, Encoding.UTF8.GetString(decompressed));
}
public static void Decompress(Stream input, Stream output)
{
var buffer = new byte[10];
input.Read(buffer, 0, 10);
if (buffer[0] != 0x1F || buffer[1] != 0x8B)
{
throw new FormatException("Invalid gzip header");
}
if (buffer[2] != 8)
{
throw new NotSupportedException("Compression method is not deflate");
}
int FLG = buffer[3];
if (FLG != FNAME && FLG != 0)
{
throw new NotSupportedException("Only FNAME flag is supported");
}
// 4-7: MTIME
int XFL = buffer[8];
if (XFL == 2)
{
Console.Out.WriteLine("Extra flag: best compression algorithm (XFL = 2)");
}
if (XFL == 4)
{
Console.Out.WriteLine("Extra flag: fastest compression algorithm (XFL = 4)");
}
// 9: OS
if ((FLG & FNAME) != 0)
{
buffer = new byte[256];
var offset = 0;
do
{
input.Read(buffer, offset, 1);
offset++;
} while (buffer[offset - 1] != '\0');
var name = System.Text.Encoding.ASCII.GetString(buffer, 0, offset);
Console.WriteLine("filename=" + name);
}
DeflateDecompressor.Decompress(input, output);
}
public void DeflateICompressorIDecompressorWorks()
{
var compressor = new DeflateCompressor();
var data = Encoding.UTF8.GetBytes("test");
byte[] compressed;
using (var inputStream = new MemoryStream(data))
{
compressed = compressor.Compress(inputStream);
}
Console.WriteLine(compressed.Length);
compressed.Should().NotBeNull();
var decompressor = new DeflateDecompressor();
byte[] decompressed;
using (var inputStream = new MemoryStream(compressed))
{
decompressed = decompressor.Decompress(inputStream);
}
decompressed.Should().NotBeNull();
Encoding.UTF8.GetString(decompressed).Should().Be("test");
}
public void DeflateICompressorIDecompressorWorks()
{
var compressor = new DeflateCompressor();
var data = Encoding.UTF8.GetBytes("test");
byte[] compressed;
using (var inputStream = new MemoryStream(data))
{
compressed = compressor.Compress(inputStream);
}
Console.WriteLine(compressed.Length);
Assert.IsNotNull(compressed);
var decompressor = new DeflateDecompressor();
byte[] decompressed;
using (var inputStream = new MemoryStream(compressed))
{
decompressed = decompressor.Decompress(inputStream);
}
Assert.IsNotNull(decompressed);
Assert.AreEqual("test", Encoding.UTF8.GetString(decompressed));
}
public void Decompress_Random50MiB()
{
var decompressed = DeflateDecompressor.Decompress(Compressed_50MiB);
CollectionAssert.AreEqual(UnCompressed_50MiB, decompressed);
}
public byte[] Burnside_ByteArray(CorpusInfo input)
{
return(DeflateDecompressor.Decompress(input.Data));
}
public byte[] DeflateDecompressor_Decompress(CompressedSize input)
{
return(DeflateDecompressor.Decompress(input.Data));
}
