public void BasicRoundTrip()
{
MemoryStream ms = new MemoryStream();
BZip2OutputStream outStream = new BZip2OutputStream(ms);
byte[] buf = new byte[10000];
System.Random rnd = new Random();
rnd.NextBytes(buf);
outStream.Write(buf, 0, buf.Length);
outStream.Close();
ms = new MemoryStream(ms.GetBuffer());
ms.Seek(0, SeekOrigin.Begin);
using (BZip2InputStream inStream = new BZip2InputStream(ms))
{
byte[] buf2 = new byte[buf.Length];
int pos = 0;
while (true)
{
int numRead = inStream.Read(buf2, pos, 4096);
if (numRead <= 0)
{
break;
}
pos += numRead;
}
for (int i = 0; i < buf.Length; ++i)
{
Assert.AreEqual(buf2[i], buf[i]);
}
}
}
public void CreateEmptyArchive()
{
MemoryStream ms = new MemoryStream();
BZip2OutputStream outStream = new BZip2OutputStream(ms);
outStream.Close();
ms = new MemoryStream(ms.GetBuffer());
ms.Seek(0, SeekOrigin.Begin);
using (BZip2InputStream inStream = new BZip2InputStream(ms))
{
byte[] buffer = new byte[1024];
int pos = 0;
while (true)
{
int numRead = inStream.Read(buffer, 0, buffer.Length);
if (numRead <= 0)
{
break;
}
pos += numRead;
}
Assert.AreEqual(pos, 0);
}
}
/// <summary>
/// Compress <paramref name="inStream">input stream</paramref> sending
/// result to <paramref name="outStream">output stream</paramref>
/// </summary>
/// <param name="inStream">The stream to compress.</param>
/// <param name="outStream">The stream to write compressed data to.</param>
/// <param name="blockSize">The block size to use.</param>
/// <remarks>Both streams are closed on completion</remarks>
public static void Compress(Stream inStream, Stream outStream, int blockSize)
{
if ( inStream == null ) {
throw new ArgumentNullException("inStream");
}
if ( outStream == null ) {
throw new ArgumentNullException("outStream");
}
using ( inStream ) {
using (var bzos = new BZip2OutputStream(outStream, blockSize)) {
var ch = inStream.ReadByte();
while (ch != -1) {
bzos.WriteByte((byte)ch);
ch = inStream.ReadByte();
}
}
}
}