- 测试

1. employee.py

class employee():    def __init__(self, fname, lname, salary):        self.first_name = fname        self.last_name = lname        self.salary = salary    def give_raise(self, add_num = 5000):        self.salary += add_num

2.test_employee

from employee import employeeimport unittestclass test_employee(unittest.TestCase):    def setUp(self):        self.em = employee("hao", "kai", 10000)        self.salary_1 = 15000        self.salary_2 = 20000        self.add = 10000    def test_give_raise(self):        self.em.give_raise()        self.assertEqual(self.em.salary, self.salary_1)    def test_give_custom_raise(self):        self.em.give_raise(self.add)        self.assertEqual(self.em.salary, self.salary_2)

测试类功能是否正常。其中setUp()函数初始化类对象，便于类中其他方法使用。