public void CompareExistingValueAndSetNewValue()
{
AtomicArray <T> ai = new AtomicArray <T>(DEFAULT_COLLECTION_SIZE);
for (int i = 0; i < DEFAULT_COLLECTION_SIZE; ++i)
{
ai.Exchange(i, one);
Assert.IsTrue(ai.CompareAndSet(i, one, two));
Assert.IsTrue(ai.CompareAndSet(i, two, m4));
Assert.AreEqual(m4, ai[i]);
Assert.IsFalse(ai.CompareAndSet(i, m5, seven));
Assert.IsFalse((seven.Equals(ai[i])));
Assert.IsTrue(ai.CompareAndSet(i, m4, seven));
Assert.AreEqual(seven, ai[i]);
}
}
public void CompareAndSetInMultipleThreads()
{
AtomicArray <T> a = new AtomicArray <T>(1);
a.Exchange(0, one);
Thread t = new Thread(delegate()
{
while (!a.CompareAndSet(0, two, three))
{
Thread.Sleep(Delays.Short);
}
});
t.Start();
Assert.IsTrue(a.CompareAndSet(0, one, two));
t.Join(Delays.Long);
Assert.IsFalse(t.IsAlive);
Assert.AreEqual(a[0], three);
}