public override IEnumerator <T> GetEnumerator()
{
lock (root)
{
return(deque.GetEnumerator());
}
}
private static void TestClone(Deque <int> deque)
{
deque.Clear();
PopulateDequePushBack(deque);
Deque <int> deque2 = (Deque <int>)deque.Clone();
Debug.Assert(deque.Count == deque2.Count);
IEnumerator <int> d2 = deque2.GetEnumerator();
d2.MoveNext();
foreach (int item in deque)
{
Debug.Assert(item.Equals(d2.Current));
d2.MoveNext();
}
}
private static void TestClone(Deque deque)
{
deque.Clear();
PopulateDequePushBack(deque);
Deque deque2 = (Deque)deque.Clone();
Debug.Assert(deque.Count == deque2.Count);
IEnumerator d2 = deque2.GetEnumerator();
d2.MoveNext();
foreach (object obj in deque)
{
Debug.Assert(obj.Equals(d2.Current));
d2.MoveNext();
}
}
private static void TestEnumerator(Deque <int> deque)
{
deque.Clear();
PopulateDequePushBack(deque);
IEnumerator <int> e = deque.GetEnumerator();
try
{
int item = e.Current;
Debug.Fail("Exception failed");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
try
{
foreach (int item in deque)
{
Debug.Assert(e.MoveNext());
}
Debug.Assert(!e.MoveNext());
int o = e.Current;
Debug.Fail("Exception failed");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
try
{
e.Reset();
foreach (int item in deque)
{
Debug.Assert(e.MoveNext());
}
Debug.Assert(!e.MoveNext());
int o = e.Current;
Debug.Fail("Exception failed");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
try
{
deque.PushBack(deque.Count);
e.Reset();
Debug.Fail("Exception failed");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
try
{
e.MoveNext();
Debug.Fail("Exception failed");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}