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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
#if !SILVERLIGHT // MethodAccessException
using System;
using System.Reactive.Concurrency;
using System.Reflection;
#if NUNIT
using NUnit.Framework;
using TestClassAttribute = NUnit.Framework.TestFixtureAttribute;
using TestMethodAttribute = NUnit.Framework.TestAttribute;
using TestInitializeAttribute = NUnit.Framework.SetUpAttribute;
#else
using Microsoft.VisualStudio.TestTools.UnitTesting;
#endif
namespace ReactiveTests.Tests
{
[TestClass]
public class AsyncLockTest
{
[TestMethod, ExpectedException(typeof(ArgumentNullException))]
public void Wait_ArgumentChecking()
{
var asyncLock = new AsyncLock();
asyncLock.Wait(null);
}
[TestMethod]
public void Wait_Graceful()
{
var ok = false;
new AsyncLock().Wait(() => { ok = true; });
Assert.IsTrue(ok);
}
[TestMethod]
public void Wait_Fail()
{
var l = new AsyncLock();
var ex = new Exception();
try
{
l.Wait(() => { throw ex; });
Assert.Fail();
}
catch (Exception e)
{
Assert.AreSame(ex, e);
}
// has faulted; should not run
l.Wait(() => { Assert.Fail(); });
}
[TestMethod]
public void Wait_QueuesWork()
{
var l = new AsyncLock();
var l1 = false;
var l2 = false;
l.Wait(() => { l.Wait(() => { Assert.IsTrue(l1); l2 = true; }); l1 = true; });
Assert.IsTrue(l2);
}
[TestMethod]
public void Dispose()
{
var l = new AsyncLock();
var l1 = false;
var l2 = false;
var l3 = false;
var l4 = false;
l.Wait(() =>
{
l.Wait(() =>
{
l.Wait(() =>
{
l3 = true;
});
l2 = true;
l.Dispose();
l.Wait(() =>
{
l4 = true;
});
});
l1 = true;
});
Assert.IsTrue(l1);
Assert.IsTrue(l2);
Assert.IsFalse(l3);
Assert.IsFalse(l4);
}
public class AsyncLock
{
object instance;
public AsyncLock()
{
instance = typeof(Scheduler).Assembly.GetType("System.Reactive.Concurrency.AsyncLock").GetConstructor(new Type[] { }).Invoke(new object[] { });
}
public void Wait(Action action)
{
try
{
instance.GetType().GetMethod("Wait").Invoke(instance, new object[] { action });
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
}
public void Dispose()
{
try
{
instance.GetType().GetMethod("Dispose").Invoke(instance, new object[0]);
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
}
}
}
}
#endif
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