public void TestCompareAndSet()
{
AtomicInt64 ai = new AtomicInt64(1);
assertTrue(ai.CompareAndSet(1, 2));
assertTrue(ai.CompareAndSet(2, -4));
assertEquals(-4, ai.Value);
assertFalse(ai.CompareAndSet(-5, 7));
assertFalse((7 == ai.Value));
assertTrue(ai.CompareAndSet(-4, 7));
assertEquals(7, ai.Value);
}
public void TestCompareAndSetInMultipleThreads()
{
AtomicInt64 ai = new AtomicInt64(1);
Thread t = new Thread(() =>
{
while (!ai.CompareAndSet(2, 3))
{
Thread.Yield();
}
});
try
{
t.Start();
assertTrue(ai.CompareAndSet(1, 2));
t.Join(LONG_DELAY_MS);
assertFalse(t.IsAlive);
assertEquals(ai.Value, 3);
}
catch (Exception e)
{
unexpectedException();
}
}
