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// MutexTest.cs - NUnit Test Cases for System.Threading.Mutex
//
// Eduardo Garcia Cebollero <kiwnix@yahoo.es>
//
// (C) Eduardo Garcia Cebollero
//
using NUnit.Framework;
using System;
using System.Threading;
namespace MonoTests.System.Threading
{
public class MutexTest : TestCase
{
//Auxiliary Classes (Future Threads)
private class ConcClass
{
public int id;
public Mutex mut;
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()
{
this.wait();
this.marker = id;
}
public void WaitAndWait()
{
mut.WaitOne();
this.marker = this.id;
mut.WaitOne();
this.marker = this.id+1;
}
}
protected override void SetUp() {}
protected override void TearDown() {}
public void TestCtor1()
{
try
{
Mutex Sem = new Mutex();
}
catch (Exception e)
{
Fail("#01 Error Creating The Simple Mutex:" + e.ToString());
}
}
// These tests produce mutex release errors
/*
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);
AssertEquals("#02 The default value of The mutex wrong set:",class1.id,class1.marker);
}
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);
AssertEquals("#03 The value of The mutex wrong set:",class1.id,class1.marker);
}
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);
AssertEquals("#04 The default value of The mutex wrong set:",class1.id,class1.marker);
}
*/
// Hangs #72534
[Category("NotWorking")]
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, "");
AssertEquals("#41 Mutex Worked InCorrecly:",100,class1.marker);
}
finally {
thread1.Abort ();
}
}
// Hangs
[Category("NotWorking")]
[Ignore ("It hangs and breaks the domain which runs nunit-console itself")]
public void TestWaitAndFoget1()
{
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");
thread2.Start();
TestUtil.WaitForNotAlive (thread2, "t2");
AssertEquals("#51 The Mutex Has been Kept after end of the thread:", class2.id,class2.marker);
}
finally {
thread1.Abort ();
thread2.Abort ();
}
}
public void TestHandle()
{
Mutex Sem = new Mutex();
try
{
IntPtr Handle = Sem.Handle;
}
catch (Exception e)
{
Fail("#61 Unexpected Exception accessing Sem.Handle:" + e.ToString());
}
}
}
}
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