[Test] public void HasWaitersReturnTrueWhenThreadIsWaitingElseFalse([Values(true, false)] bool isFair)
{
_lock = new ReentrantLock(true);
ICondition c = _lock.NewCondition();
ThreadManager.StartAndAssertRegistered(
"T1",
delegate
{
using (_lock.Lock())
{
Assert.IsFalse(_lock.HasWaiters(c));
Assert.That(_lock.GetWaitQueueLength(c), Is.EqualTo(0));
c.Await();
}
});
Thread.Sleep(Delays.Short);
_lock.Lock();
Assert.IsTrue(_lock.HasWaiters(c));
Assert.AreEqual(1, _lock.GetWaitQueueLength(c));
c.Signal();
_lock.Unlock();
Thread.Sleep(Delays.Short);
_lock.Lock();
Assert.IsFalse(_lock.HasWaiters(c));
Assert.AreEqual(0, _lock.GetWaitQueueLength(c));
_lock.Unlock();
ThreadManager.JoinAndVerify();
}
public void GetWaitQueueLengthReturnsNumberOfThreads(bool isFair)
{
_lock = new ReentrantLock(isFair);
ICondition c = _lock.NewCondition();
ThreadManager.StartAndAssertRegistered(
"T1",
delegate
{
using (_lock.Lock())
{
Assert.IsFalse(_lock.HasWaiters(c));
Assert.AreEqual(0, _lock.GetWaitQueueLength(c));
c.Await();
}
});
Thread.Sleep(Delays.Short);
ThreadManager.StartAndAssertRegistered(
"T2",
delegate
{
using (_lock.Lock())
{
Assert.IsTrue(_lock.HasWaiters(c));
Assert.AreEqual(1, _lock.GetWaitQueueLength(c));
c.Await();
}
});
try
{
Thread.Sleep(Delays.Short);
_lock.Lock();
Assert.IsTrue(_lock.HasWaiters(c));
Assert.AreEqual(2, _lock.GetWaitQueueLength(c));
c.SignalAll();
_lock.Unlock();
Thread.Sleep(Delays.Short);
_lock.Lock();
Assert.IsFalse(_lock.HasWaiters(c));
Assert.AreEqual(0, _lock.GetWaitQueueLength(c));
_lock.Unlock();
}
finally
{
ThreadManager.JoinAndVerify();
}
}
public void HasWaitersChokesWhenNotLocked(bool isFair)
{
_lock = new ReentrantLock(isFair);
ICondition c = _lock.NewCondition();
_lock.HasWaiters(c);
}
public void HasWaitersChokesWhenNotOwned([Values(true, false)] bool isFair)
{
_lock = new ReentrantLock(isFair);
ICondition c = _lock.NewCondition();
ReentrantLock lock2 = new ReentrantLock(isFair);
lock2.HasWaiters(c);
}
public void HasWaitersChokesOnNullParameter([Values(true, false)] bool isFair)
{
_lock = new ReentrantLock(isFair);
_lock.HasWaiters(null);
}