byte[] MakeMemZip(ref byte[] original, CompressionMethod method, int compressionLevel, int size, string password, bool withSeek)
{
MemoryStream ms;
if (withSeek == true) {
ms = new MemoryStream();
} else {
ms = new MemStreamWithoutSeek();
}
ZipOutputStream outStream = new ZipOutputStream(ms);
if (password != null) {
outStream.Password = password;
}
if (method != CompressionMethod.Stored)
outStream.SetLevel(compressionLevel); // 0 - store only to 9 - means best compression
ZipEntry entry = new ZipEntry("dummyfile.tst");
entry.CompressionMethod = method;
outStream.PutNextEntry(entry);
if (size > 0) {
original = new byte[size];
System.Random rnd = new Random();
rnd.NextBytes(original);
outStream.Write(original, 0, original.Length);
}
outStream.Close();
return ms.GetBuffer();
}
public void StoredNonSeekableConvertToDeflate()
{
MemStreamWithoutSeek ms = new MemStreamWithoutSeek();
ZipOutputStream outStream = new ZipOutputStream(ms);
outStream.SetLevel(8);
Assert.AreEqual(8, outStream.GetLevel(), "Compression level invalid");
ZipEntry entry = new ZipEntry("1.tst");
entry.CompressionMethod = CompressionMethod.Stored;
outStream.PutNextEntry(entry);
Assert.AreEqual(0, outStream.GetLevel(), "Compression level invalid");
AddRandomDataToEntry(outStream, 100);
entry = new ZipEntry("2.tst");
entry.CompressionMethod = CompressionMethod.Deflated;
outStream.PutNextEntry(entry);
Assert.AreEqual(8, outStream.GetLevel(), "Compression level invalid");
AddRandomDataToEntry(outStream, 100);
outStream.Close();
}