public void Compress(Datablock src, Datablock trg)
{
using (var targetStream = new MemoryStream())
{
using (var compressionStream = new GZipStream(targetStream, CompressionMode.Compress, true))
{
compressionStream.Write(src.Data, 0, src.Count);
}
ArchiverHelper.GetHeaderWithLength(targetStream, trg);
}
}
public void TestHeaderWithLegthAndLenthTest(int length)
{
var r = new Random();
var srcArray = new byte[length];
srcArray[0] = 31;
srcArray[1] = 139;
srcArray[2] = 8;
srcArray[3] = 0;
srcArray[4] = 0;
srcArray[5] = 0;
srcArray[6] = 0;
srcArray[7] = 0;
srcArray[8] = 4;
srcArray[9] = 0;
for (var i = 10; i < length; i++)
{
srcArray[i] = (byte)r.Next();
}
var dataBlock = new Datablock
{
Count = length,
Data = new byte[length + ArchiverHelper.EXTRA_FIELD_LENGTH]
};
using (var ms = new MemoryStream(srcArray))
{
ArchiverHelper.GetHeaderWithLength(ms, dataBlock);
}
Assert.AreEqual(srcArray.Length + ArchiverHelper.EXTRA_FIELD_LENGTH, dataBlock.Count);
Assert.AreNotEqual(srcArray[3], dataBlock.Data[3]);
var resultCount = 0;
using (var ms = new MemoryStream(dataBlock.Data, 0, dataBlock.Count))
{
resultCount = ArchiverHelper.GetBlockLegth(ms);
}
Assert.AreEqual(dataBlock.Count, resultCount);
}
