/// <summary>Zad A</summary>
public void IsSameInstance()
{
SingletonLazy instance1 = SingletonLazy.Instance;
SingletonLazy instance2 = SingletonLazy.Instance;
Assert.AreSame(instance1, instance2);
}
public static void Run()
{
char key;
while (true)
{
printMenu();
key = Console.ReadKey().KeyChar;
Console.WriteLine();
switch (key)
{
case 'f':
FactoryMethodPatternExample.Display();
break;
case 'a':
AbstractFactoryPatternExample.Display();
break;
case 's':
SingletonPatternExample.Display();
SingletonLock.Display();
SingletonThreads.Display();
break;
case 'l':
SingletonStaticFields.Display();
SingletonNestedClass.Display();
SingletonNestedLazy.Display();
break;
case 'z':
SingletonLazy.Display();
break;
case 'p':
PrototypePatternExample.Display();
PrototypePatternExampleComplex.Display();
break;
case 'b':
BuilderPatternExample.Display();
break;
case 'x': return;
}
Console.ReadKey();
}
}
public static SingletonLazy GetInstance()
{
if (instance == null)
{
lock (synRoot)
{
if (instance == null)
{
instance = new SingletonLazy();
}
}
}
return(instance);
}
public void GetInstance_MultipleCalls_InstanceCountMustBeOne(int threadCount)
{
Thread[] getInstanceThreads = new Thread[threadCount];
for (int i = 0; i < threadCount; i++)
{
getInstanceThreads[i] = new Thread(() => { SingletonLazy.GetInstance(); });
}
Parallel.ForEach(getInstanceThreads, currentThread => currentThread.Start());
SingletonLazy singletonInstance = SingletonLazy.GetInstance();
Assert.AreEqual(1, singletonInstance.InstanceCount);
}
static void Main(string[] args)
{
SingletonLazy instOne = SingletonLazy.GetLazyValue();
SingletonLazy instTwo = SingletonLazy.GetLazyValue();
}
