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//
// DeflateStreamCas.cs -CAS unit tests for System.IO.Compression.DeflateStream
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_0
using NUnit.Framework;
using System;
using System.IO;
using System.IO.Compression;
using System.Security;
using System.Security.Permissions;
using System.Threading;
namespace MonoCasTests.System.IO.Compression {
[TestFixture]
[Category ("CAS")]
public class DeflateStreamCas {
private const int timeout = 30000;
private string message;
static ManualResetEvent reset;
[TestFixtureSetUp]
public void FixtureSetUp ()
{
// this occurs with a "clean" stack (full trust)
reset = new ManualResetEvent (false);
}
[TestFixtureTearDown]
public void FixtureTearDown ()
{
reset.Close ();
}
[SetUp]
public void SetUp ()
{
if (!SecurityManager.SecurityEnabled)
Assert.Ignore ("SecurityManager.SecurityEnabled is OFF");
}
// async tests (for stack propagation)
private void ReadCallback (IAsyncResult ar)
{
DeflateStream s = (DeflateStream)ar.AsyncState;
s.EndRead (ar);
try {
// can we do something bad here ?
Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
message = "Expected a SecurityException";
}
catch (SecurityException) {
message = null;
reset.Set ();
}
catch (Exception e) {
message = e.ToString ();
}
}
[Test]
[EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
public void AsyncRead ()
{
DeflateStream cs = new DeflateStream (new MemoryStream (), CompressionMode.Decompress);
message = "AsyncRead";
reset.Reset ();
IAsyncResult r = cs.BeginRead (new byte[0], 0, 0, new AsyncCallback (ReadCallback), cs);
Assert.IsNotNull (r, "IAsyncResult");
if (!reset.WaitOne (timeout, true))
Assert.Ignore ("Timeout");
Assert.IsNull (message, message);
cs.Close ();
}
private void WriteCallback (IAsyncResult ar)
{
DeflateStream s = (DeflateStream)ar.AsyncState;
s.EndWrite (ar);
try {
// can we do something bad here ?
Assert.IsNotNull (Environment.GetEnvironmentVariable ("USERNAME"));
message = "Expected a SecurityException";
}
catch (SecurityException) {
message = null;
reset.Set ();
}
catch (Exception e) {
message = e.ToString ();
}
}
[Test]
[EnvironmentPermission (SecurityAction.Deny, Read = "USERNAME")]
public void AsyncWrite ()
{
DeflateStream cs = new DeflateStream (new MemoryStream (), CompressionMode.Compress);
message = "AsyncWrite";
reset.Reset ();
IAsyncResult r = cs.BeginWrite (new byte[1], 0, 1, new AsyncCallback (WriteCallback), cs);
Assert.IsNotNull (r, "IAsyncResult");
if (!reset.WaitOne (timeout, true))
Assert.Ignore ("Timeout");
Assert.IsNull (message, message);
// the Close is currently buggy in Mono
// cs.Close ();
}
}
}
#endif
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