def test_straight_order():
s = Stack(reverse=False)
s('first')
s('second')
s('third')
assert s.top() == ('third',)
assert s.bottom() == ('first',)
assert list(s) == [('first',), ('second',), ('third',)]
def test_default_reverse_order():
s = Stack() # This is the default
s('first')
s('second')
s('third')
assert len(s) == 3
assert s.top() == ('first',)
assert s.bottom() == ('third',)
assert list(s) == [('third',), ('second',), ('first',)]
