def test_count_stack_empty_stack(self): stack = StackArray() self.assertEqual(0, stack.count())
def test_clear_stack(self): stack = StackArray([9]) stack.clear() self.assertEqual(0, stack.count()) self.assertEqual('', str(stack))
def test_count_stack(self): stack = StackArray([4, 9]) self.assertEqual(2, stack.count())