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//
// System.Runtime.InteropServices.SafeHandle Test Cases
//
// Authors:
// Miguel de Icaza (miguel@novell.com)
//
// Copyright (C) 2004-2006 Novell, Inc (http://www.novell.com)
//
#if NET_2_0
using NUnit.Framework;
using System;
using System.Runtime.InteropServices;
using System.Security;
using Microsoft.Win32.SafeHandles;
namespace MonoTests.System.Runtime.InteropServices
{
[TestFixture]
public class SafeHandleTest
{
//
// This mimics SafeFileHandle, but does not actually own a handle
// We use this to test ownership and dispose exceptions.
//
public class FakeSafeHandle : SafeHandleZeroOrMinusOneIsInvalid
{
public bool released = false;
public FakeSafeHandle (): base (true)
{
}
public FakeSafeHandle (bool ownership) : base (ownership)
{
}
protected override bool ReleaseHandle ()
{
released = true;
return true;
}
}
[Test]
[ExpectedException (typeof (ObjectDisposedException))]
public void Dispose1 ()
{
FakeSafeHandle sf = new FakeSafeHandle ();
sf.DangerousRelease ();
sf.DangerousRelease ();
}
[Test]
[ExpectedException (typeof (ObjectDisposedException))]
public void Dispose2 ()
{
FakeSafeHandle sf = new FakeSafeHandle ();
sf.DangerousRelease ();
sf.Close ();
}
[Test]
[ExpectedException (typeof (ObjectDisposedException))]
public void Dispose3 ()
{
FakeSafeHandle sf = new FakeSafeHandle ();
sf.Close ();
sf.DangerousRelease ();
}
[Test]
public void NoReleaseUnowned ()
{
FakeSafeHandle sf = new FakeSafeHandle (false);
sf.Close ();
Assert.AreEqual (sf.released, false, "r1");
sf = new FakeSafeHandle (false);
sf.DangerousRelease ();
Assert.AreEqual (sf.released, false, "r2");
sf = new FakeSafeHandle (false);
((IDisposable) sf).Dispose ();
Assert.AreEqual (sf.released, false, "r3");
}
//
// This test does a DangerousAddRef on a new instance
// of a custom user Safe Handle, and it just happens
// that the default value for the handle is an invalid
// handle.
//
// .NET does not throw an exception in this case, so
// we should not either
//
[Test]
public void DangerousAddRefOnNewInstance ()
{
var h = new IntPtrSafe ();
var success = false;
h.DangerousAddRef (ref success);
Assert.AreEqual (success, true, "daroni");
}
public class IntPtrSafe : SafeHandle {
public IntPtrSafe() : base(IntPtr.Zero, true)
{
}
protected override bool ReleaseHandle()
{
return true;
}
public IntPtr Handle { get; set; }
public override bool IsInvalid
{
get { return Handle == IntPtr.Zero; }
}
}
}
}
#endif
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