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//
// StreamCas.cs - CAS unit tests for System.IO.Stream
//
// 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.
//
using NUnit.Framework;
using System;
using System.IO;
using System.Security;
using System.Security.Permissions;
using System.Threading;
namespace MonoCasTests.System.IO {
// System.IO.Stream is an abstract class, so we use our own inherited
// class for the tests
public class NonAbstractStream : Stream {
private long _pos;
private long _length;
public override bool CanRead {
get { return true; }
}
public override bool CanSeek {
get { return true; }
}
public override bool CanWrite {
get { return true; }
}
public override void Flush ()
{
}
public override long Length {
get { return _length; }
}
public override long Position {
get { return _pos; }
set { _pos = value; }
}
public override int Read (byte[] buffer, int offset, int count)
{
_pos += count;
return count;
}
public override long Seek (long offset, SeekOrigin origin)
{
_pos = offset;
return _pos;
}
public override void SetLength (long value)
{
_length = value;
}
public override void Write (byte[] buffer, int offset, int count)
{
_pos += count;
}
}
[TestFixture]
[Category ("CAS")]
public class StreamCas {
private const int timeout = 30000;
private string message;
static ManualResetEvent reset;
[TestFixtureSetUp]
public void FixtureSetUp ()
{
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)
{
NonAbstractStream s = (NonAbstractStream) 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 ()
{
NonAbstractStream s = new NonAbstractStream ();
message = "AsyncRead";
reset.Reset ();
IAsyncResult r = s.BeginRead (null, 0, 0, new AsyncCallback (ReadCallback), s);
Assert.IsNotNull (r, "IAsyncResult");
if (!reset.WaitOne (timeout, true))
Assert.Ignore ("Timeout");
Assert.IsNull (message, message);
}
private void WriteCallback (IAsyncResult ar)
{
NonAbstractStream s = (NonAbstractStream)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 ()
{
NonAbstractStream s = new NonAbstractStream ();
message = "AsyncWrite";
reset.Reset ();
IAsyncResult r = s.BeginWrite (null, 0, 0, new AsyncCallback (WriteCallback), s);
Assert.IsNotNull (r, "IAsyncResult");
if (!reset.WaitOne (timeout, true))
Assert.Ignore ("Timeout");
Assert.IsNull (message, message);
}
}
}
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