public void Zlib_DisposedException_ZlibStream()
{
string TextToCompress = IhaveaDream;
MemoryStream ms1= new MemoryStream();
Stream compressor= new ZlibStream(ms1, CompressionMode.Compress, false);
TestContext.WriteLine("Text to compress is {0} bytes: '{1}'",
TextToCompress.Length, TextToCompress);
TestContext.WriteLine("using compressor: {0}", compressor.GetType().FullName);
StreamWriter sw = new StreamWriter(compressor, Encoding.ASCII);
sw.Write(TextToCompress);
sw.Close(); // implicitly closes compressor
sw.Close(); // implicitly closes compressor, again
compressor.Close(); // explicitly closes compressor
var a = ms1.ToArray();
TestContext.WriteLine("Compressed stream is {0} bytes long", a.Length);
var ms2 = new MemoryStream(a);
Stream decompressor = new ZlibStream(ms2, CompressionMode.Decompress, false);
TestContext.WriteLine("using decompressor: {0}", decompressor.GetType().FullName);
var sr = new StreamReader(decompressor, Encoding.ASCII);
string DecompressedText = sr.ReadToEnd();
sr.Close();
TestContext.WriteLine("decompressor.CanRead = {0}",decompressor.CanRead);
TestContext.WriteLine("Read {0} characters: '{1}'", DecompressedText.Length, DecompressedText);
TestContext.WriteLine("\n");
Assert.AreEqual<String>(TextToCompress, DecompressedText);
}
public void Zlib_CloseTwice()
{
string TextToCompress = LetMeDoItNow;
for (int i = 0; i < 3; i++)
{
MemoryStream ms1= new MemoryStream();
Stream compressor = null;
switch (i)
{
case 0:
compressor= new DeflateStream(ms1, CompressionMode.Compress, CompressionLevel.BestCompression, false);
break;
case 1:
compressor = new GZipStream(ms1, CompressionMode.Compress, false);
break;
case 2:
compressor = new ZlibStream(ms1, CompressionMode.Compress, false);
break;
}
TestContext.WriteLine("Text to compress is {0} bytes: '{1}'",
TextToCompress.Length, TextToCompress);
TestContext.WriteLine("using compressor: {0}", compressor.GetType().FullName);
StreamWriter sw = new StreamWriter(compressor, Encoding.ASCII);
sw.Write(TextToCompress);
sw.Close(); // implicitly closes compressor
sw.Close();// implicitly closes compressor, again
compressor.Close(); // explicitly closes compressor
var a = ms1.ToArray();
TestContext.WriteLine("Compressed stream is {0} bytes long", a.Length);
var ms2 = new MemoryStream(a);
Stream decompressor = null;
switch (i)
{
case 0:
decompressor = new DeflateStream(ms2, CompressionMode.Decompress, false);
break;
case 1:
decompressor = new GZipStream(ms2, CompressionMode.Decompress, false);
break;
case 2:
decompressor = new ZlibStream(ms2, CompressionMode.Decompress, false);
break;
}
TestContext.WriteLine("using decompressor: {0}", decompressor.GetType().FullName);
var sr = new StreamReader(decompressor, Encoding.ASCII);
string DecompressedText = sr.ReadToEnd();
// verify that multiple calls to Close() do not throw
sr.Close();
sr.Close();
decompressor.Close();
TestContext.WriteLine("Read {0} characters: '{1}'", DecompressedText.Length, DecompressedText);
TestContext.WriteLine("\n");
Assert.AreEqual<String>(TextToCompress, DecompressedText);
}
}
