public void throw_emptyexception_when_pop_and_have_pushed_nothing()
{
var stack = new Stack();
Check
.ThatCode(() => stack.Pop())
.Throws<EmptyException>();
}
public void pop_the_last_pushed_object()
{
object lastpushed = new object();
var stack = new Stack();
stack.Push(lastpushed);
object popped = stack.Pop();
Assert.AreEqual(lastpushed, popped);
}
public void throw_empty_exception_when_pop_twice_after_only_one_push()
{
var stack = new Stack();
stack.Push(new Object());
stack.Pop();
Check
.ThatCode(() => stack.Pop())
.Throws<EmptyException>();
}
public void pop_two_elements_in_reverse_order_that_they_have_been_pushed()
{
var firstObject = new Object();
var secondObject = new Object();
var stack = new Stack();
stack.Push(firstObject);
stack.Push(secondObject);
Check.That(stack.Pop()).Equals(secondObject);
Check.That(stack.Pop()).Equals(firstObject);
}