public void QueueStack_PushThenPopThenPeak_ExceptionThrown()
{
StackUsingQueue<String> stack = new StackUsingQueue<String>();
stack.Push("hi");
String pop = stack.Pop();
stack.Peek();
}
public void QueueStack_PeekEmptyStack_ExceptionThrown()
{
StackUsingQueue<String> stack = new StackUsingQueue<String>();
stack.Peek();
}