def test_stack():
S = ArrayStack()
S.push(5)
print(S.top())
S.push(6)
print(len(S))
print(S.pop())
print(S.is_empty())
print(S.data)
def test_arraystack_topthrowsempty(self):
stack = ArrayStack()
stack.top()
def test_arraystack_push(self):
stack = ArrayStack()
for i in range(100):
stack.push(i + 1)
assert_equal(stack.top(), i + 1)