自动化五：单元测试框架三

# encoding=utf-8
import unittest
from Calc import Calc


class MyTest(unittest.TestCase):

    @classmethod
    def setUpClass(self):
        print("单元测试前，创建Calc类的实例")
        self.c = Calc()

    def test_3div(self):
        print("run div()")
        self.assertEqual(Calc.div(8, 2, 4), 1, ‘test div fail‘)

    # 具体的测试用例，一定要以test开头，执行顺序默认按照字母顺序开头，可以加上序号来改变case函数的执行顺序
    def test_0add(self):
        print("run add()")
        self.assertEqual(self.c.add(1, 2, 12), 15, ‘test add fail‘)

    def test_1sub(self):
        print("run sub()")
        self.assertEqual(self.c.sub(2, 1, 3), -2, ‘test sub fail‘)

    def test_2mul(self):
        print("run mul()")
        self.assertEqual(Calc.mul(2, 3, 5), 30, ‘test mul fail‘)


if __name__ == ‘__main__‘:
    unittest.main()  # 启动单元测试