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// MutexTest.cs - NUnit Test Cases for System.Threading.Mutex
//
// Eduardo Garcia Cebollero <kiwnix@yahoo.es>
//
// (C) Eduardo Garcia Cebollero
//
using System;
using System.Threading;
using NUnit.Framework;
namespace MonoTests.System.Threading
{
[TestFixture]
public class MutexTest
{
//Auxiliary Classes (Future Threads)
private class ConcClass
{
public int id;
public Mutex mut;
public bool abandoned_exception;
public ConcClass(int id,Mutex mut)
{
this.id = id;
this.mut = mut;
}
public void Wait()
{
mut.WaitOne();
}
public void Signal()
{
mut.ReleaseMutex();
}
}
private class ConcClassLoop: ConcClass
{
public int marker;
public ConcClassLoop(int id,Mutex mut) :
base(id,mut)
{
this.marker = 0;
}
public void WithoutWait()
{
this.marker = this.id;
this.Signal();
}
public void Loop()
{
while (this.marker<100)
{
this.Wait();
this.marker++;
this.Signal();
}
}
public void WaitAndForget()
{
try {
this.Wait();
} catch (AbandonedMutexException) {
this.abandoned_exception = true;
}
this.marker = id;
}
public void WaitAndWait()
{
mut.WaitOne();
this.marker = this.id;
mut.WaitOne();
this.marker = this.id+1;
}
}
[Test]
public void TestCtor1()
{
Mutex Sem = new Mutex();
}
// These tests produce mutex release errors
/**
[Test]
public void TestCtorDefaultValue()
{
Mutex Sem = new Mutex();
ConcClassLoop class1 = new ConcClassLoop(1,Sem);
Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));
thread1.Start();
while(thread1.IsAlive);
Assert.AreEqual(class1.id,class1.marker);
}
[Test]
public void TestCtorCtor2()
{
Mutex Sem = new Mutex(false);
ConcClassLoop class1 = new ConcClassLoop(1,Sem);
Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));
thread1.Start();
while(thread1.IsAlive);
Assert.AreEqual(class1.id,class1.marker);
}
[Test]
public void TestCtorCtor3()
{
Mutex Sem = new Mutex(true);
ConcClassLoop class1 = new ConcClassLoop(1,Sem);
Thread thread1 = new Thread(new ThreadStart(class1.WithoutWait));
thread1.Start();
while(thread1.IsAlive);
Assert.AreEqual(class1.id,class1.marker);
}
*/
[Test]
[Category ("MultiThreaded")]
public void TestWaitAndSignal1()
{
Mutex Sem = new Mutex (false);
ConcClassLoop class1 = new ConcClassLoop (1, Sem);
Thread thread1 = new Thread (new ThreadStart (class1.Loop));
try {
thread1.Start ();
TestUtil.WaitForNotAlive (thread1, "");
Assert.AreEqual (100, class1.marker);
} finally {
#if MONO_FEATURE_THREAD_ABORT
thread1.Abort ();
#else
thread1.Interrupt ();
#endif
}
}
[Test]
[Category ("MultiThreaded")]
public void TestWaitAndForget1()
{
Mutex Sem = new Mutex(false);
ConcClassLoop class1 = new ConcClassLoop(1,Sem);
ConcClassLoop class2 = new ConcClassLoop(2,Sem);
Thread thread1 = new Thread(new ThreadStart(class1.WaitAndForget));
Thread thread2 = new Thread(new ThreadStart(class2.WaitAndForget));
try {
thread1.Start();
TestUtil.WaitForNotAlive (thread1, "t1");
Assert.IsFalse (class1.abandoned_exception, "e1");
thread2.Start();
TestUtil.WaitForNotAlive (thread2, "t2");
Assert.IsTrue (class2.abandoned_exception, "e2");
Assert.AreEqual (class2.id, class2.marker);
} finally {
#if MONO_FEATURE_THREAD_ABORT
thread1.Abort ();
thread2.Abort ();
#else
thread1.Interrupt ();
thread2.Interrupt ();
#endif
}
}
[Test]
public void TestHandle()
{
Mutex Sem = new Mutex();
IntPtr Handle = Sem.Handle;
}
[Test] // bug #79358
public void DoubleRelease ()
{
Mutex mutex = new Mutex ();
mutex.WaitOne ();
mutex.ReleaseMutex ();
try {
mutex.ReleaseMutex ();
Assert.Fail ("#1");
} catch (ApplicationException ex) {
Assert.AreEqual (typeof (ApplicationException), ex.GetType (), "#2");
}
}
}
}
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