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// SemaphoreSecurityTest.cs - NUnit Test Cases for SemaphoreSecurity
//
// Authors:
// James Bellinger <jfb@zer7.com>
//
// Copyright (C) 2012 James Bellinger
using System;
using System.Collections.Generic;
using System.Security.AccessControl;
using System.Security.Principal;
using System.Threading;
using NUnit.Framework;
namespace MonoTests.System.Security.AccessControl
{
[TestFixture]
public class SemaphoreSecurityTest
{
// TODO: Mono System.Threading.Semaphore does not throw exceptions on failure (except in OpenExisting).
[Test, ExpectedExceptionAttribute (typeof (UnauthorizedAccessException))]
public void PermissionsActuallyWork ()
{
if (PlatformID.Win32NT != Environment.OSVersion.Platform) {
Assert.Ignore ();
}
bool createdNew; SemaphoreSecurity security;
string name = @"Local\MonoTestSemaphore";
using (Semaphore semaphore = new Semaphore (1, 1, name, out createdNew)) {
Assert.IsFalse (semaphore.SafeWaitHandle.IsInvalid);
Assert.IsTrue (createdNew);
// Make sure our later error will be due to permissions and not some sharing bug.
bool createdAnotherNew;
using (Semaphore anotherSemaphore = new Semaphore (1, 1, name, out createdAnotherNew)) {
Assert.IsFalse (anotherSemaphore.SafeWaitHandle.IsInvalid);
Assert.IsFalse (createdAnotherNew);
}
// Let's make a deny all.
security = semaphore.GetAccessControl ();
foreach (SemaphoreAccessRule rule in security.GetAccessRules
(true, false, typeof (SecurityIdentifier))) {
security.RemoveAccessRuleSpecific (rule);
}
Assert.AreEqual (0, security.GetAccessRules (true, false, typeof (SecurityIdentifier)).Count);
semaphore.SetAccessControl (security);
security = semaphore.GetAccessControl ();
Assert.AreEqual (0, security.GetAccessRules (true, false, typeof (SecurityIdentifier)).Count);
// MS.NET will throw on the first line below.
// For Mono testing the latter verifies the rest until the Semaphore bug is fixed.
// Also, NUnit 2.4 appears to lacks Assert.Pass ().
Semaphore badSemaphore = new Semaphore (1, 1, name);
if (badSemaphore.SafeWaitHandle.IsInvalid)
throw new UnauthorizedAccessException ();
}
}
}
}
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