public void TestPeek()
{
VisitableStack <int> stack = new VisitableStack <int>();
stack.Push(2);
stack.Push(4);
stack.Push(6);
Assert.AreEqual(stack.Peek(), 6);
stack.Pop();
Assert.AreEqual(stack.Peek(), 4);
}
public void TestAdd()
{
VisitableStack <int> stack = new VisitableStack <int>();
stack.Add(5);
Assert.AreEqual(stack.Count, 1);
Assert.AreEqual(stack.Peek(), 5);
Assert.AreEqual(stack.Pop(), 5);
stack.Push(2);
stack.Push(4);
Assert.AreEqual(stack.Count, 2);
Assert.AreEqual(stack.Peek(), 4);
Assert.AreEqual(stack.Pop(), 4);
Assert.AreEqual(stack.Count, 1);
Assert.AreEqual(stack.Peek(), 2);
Assert.AreEqual(stack.Pop(), 2);;
}
public void TestEmptyPeek()
{
VisitableStack <int> stack = new VisitableStack <int>();
int i = stack.Peek();
}
