2005-05-18 Sebastien Pouliot <[email protected]>

	* StreamCas.cs: New. CAS unit tests to test stack propagation for 
	BeginRead and BeginWrite.
	* FileStreamCas.cs: Added tests to test stack propagation for 
	BeginRead and BeginWrite.


svn path=/trunk/mcs/; revision=44683

mcs/class/corlib/Test/System.IO/ChangeLog

@@ -1,3 +1,10 @@
+2005-05-18  Sebastien Pouliot  <[email protected]>
+
+	* StreamCas.cs: New. CAS unit tests to test stack propagation for 
+	BeginRead and BeginWrite.
+	* FileStreamCas.cs: Added tests to test stack propagation for 
+	BeginRead and BeginWrite.
+
 2005-05-09  Sebastien Pouliot  <[email protected]> 
  
 	* DirectoryCas.cs: Fixed IsRunningOnWindows (inversed logic). That

mcs/class/corlib/Test/System.IO/FileStreamCas.cs

@@ -33,6 +33,7 @@ using System.IO;
 using System.Reflection;
 using System.Security;
 using System.Security.Permissions;
+using System.Threading;
 
 namespace MonoCasTests.System.IO {
 
@@ -41,12 +42,31 @@ namespace MonoCasTests.System.IO {
 	public class FileStreamCas {
 
 		private MonoTests.System.IO.FileStreamTest fst;
+		private const int timeout = 30000;
+		private string message;
+		private string readfile;
+		private string writefile;
+
+		static ManualResetEvent reset;
 
 		[TestFixtureSetUp]
 		public void FixtureSetUp ()
 		{
 			// this occurs with a "clean" stack (full trust)
 			fst  = new MonoTests.System.IO.FileStreamTest ();
+			reset = new ManualResetEvent (false);
+			readfile = Path.GetTempFileName ();
+			writefile = Path.GetTempFileName ();
+		}
+
+		[TestFixtureTearDown]
+		public void FixtureTearDown ()
+		{
+			reset.Close ();
+			if (File.Exists (readfile))
+				File.Delete (readfile);
+			if (File.Exists (writefile))
+				File.Delete (writefile);
 		}
 
 		[SetUp]
@@ -161,5 +181,73 @@ namespace MonoCasTests.System.IO {
 				fs.Close ();
 			}
 		}
+
+		// async tests (for stack propagation)
+
+		private void ReadCallback (IAsyncResult ar)
+		{
+			FileStream s = (FileStream)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 ()
+		{
+			FileStream fs = new FileStream (readfile, FileMode.OpenOrCreate);
+			message = "AsyncRead";
+			reset.Reset ();
+			IAsyncResult r = fs.BeginRead (new byte[0], 0, 0, new AsyncCallback (ReadCallback), fs);
+			Assert.IsNotNull (r, "IAsyncResult");
+			if (!reset.WaitOne (timeout, true))
+				Assert.Ignore ("Timeout");
+			Assert.IsNull (message, message);
+			fs.Close ();
+		}
+
+		private void WriteCallback (IAsyncResult ar)
+		{
+			FileStream s = (FileStream)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 ()
+		{
+			FileStream fs = new FileStream (writefile, FileMode.OpenOrCreate);
+			message = "AsyncWrite";
+			reset.Reset ();
+			IAsyncResult r = fs.BeginWrite (new byte[0], 0, 0, new AsyncCallback (WriteCallback), fs);
+			Assert.IsNotNull (r, "IAsyncResult");
+			if (!reset.WaitOne (timeout, true))
+				Assert.Ignore ("Timeout");
+			Assert.IsNull (message, message);
+			fs.Close ();
+		}
 	}
 }

mcs/class/corlib/Test/System.IO/StreamCas.cs

@@ -0,0 +1,189 @@
+//
+// StreamCas.cs - CAS unit tests for System.IO.Stream
+//
+// Author:
+//	Sebastien Pouliot  <[email protected]>
+//
+// 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);
+		}
+	}
+}