public void PeekRepeats()
{
IQueue <int> q = new LifoQueue <int>();
q.Enqueue(123);
int val = q.Peek();
Assert.AreEqual(123, val);
Assert.AreEqual(1, q.Count);
val = q.Peek();
Assert.AreEqual(123, val);
Assert.AreEqual(1, q.Count);
q.Enqueue(456);
val = q.Peek();
Assert.AreEqual(456, val);
Assert.AreEqual(2, q.Count);
}
public void EnumeratorIsLifo()
{
int i;
IQueue <int> q = new LifoQueue <int>();
for (i = 0; i < 100; i++)
{
q.Enqueue(i);
}
i = 99;
foreach (int j in q)
{
Assert.AreEqual(i, j);
i--;
}
}
public void LifoOrdering()
{
int i;
IQueue <int> q = new LifoQueue <int>();
for (i = 0; i < 100; i++)
{
q.Enqueue(i);
}
Assert.AreEqual(100, q.Count);
for (i = 99; i >= 0; i--)
{
int val = q.Dequeue();
Assert.AreEqual(i, val);
}
Assert.AreEqual(0, q.Count);
}
