# -*- coding: utf-8 -*-

class Demo:

    @staticmethod

    def login(username, password):

        # 这里写你的业务逻辑，简单起见，我返回True

        print('\n%s' % username)

        print('\n%s' % password)

        return True

class TestDemo:

    def test_login(self, username, password, expected):

        assert Demo.login(username, password) == expected

    def test_demo1(self):

        assert True

    def test_demo2(self):

        assert False
