断言

断言

断言内容是自动化脚本的重要内容，正确设置断言以后才能帮助我们判断测试用例执行结果。

断言方法

• assertEqual(a, b) 判断a==b
• assertNotEqual(a, b) 判断a！=b
• assertTrue(x) bool(x) is True
• assertFalse(x) bool(x) is False
• assertIs(a, b) a is b
• assertIsNot(a, b) a is not b
• assertIsNone(x) x is None
• assertIsNotNone(x) x is not None
• assertIn(a, b) a in b
• assertNotIn(a, b) a not in b
• assertIsInstance(a, b) isinstance(a, b)
• assertNotIsInstance(a, b) not isinstance(a, b)

　　测试案例脚本的编写：

#/usr/bin python
#-*- coding:UTF-8 -*-
from calculator import Math
import unittest

#测试用例继承TestCase类
class TestMath(unittest.TestCase):
    def setUp(self):
        print("test start")

    def test_add(self):
         j = Math.add(1,2)
         self.assertEqual(j,3)
         #self.assertNotEqual(j,4)
         print("######test_add######")

    def test_add1(self):
        j = Math.add(1,2)
        self.assertTrue(j>1)
        print("######test_add1######")

    def assertIs_test(self):
        self.assertIs("welcome","welcome to beijing")
        print("######assertIs_test######")

    def assertIn_test(self):
        self.assertIn("welcome","welcome to beijing")
        print("######assertIs_test######")

    def tearDown(self):
        print("test end")

if __name__ == '__main__':
    ##构造测试集
    suite = unittest.TestSuite()
    suite.addTest(TestMath("test_add"))
    suite.addTest(TestMath("test_add1"))
    suite.addTest(TestMath("assertIn_test"))
    suite.addTest(TestMath("assertIs_test"))
    ##执行测试
    runner = unittest.TextTestRunner()
    runner.run(suite)

测试的python源码

#/usr/bin python
#-*- coding:UTF-8 -*-
##计算模块##
class Math:
    #用于存放初始化数据
    def __int__(self,a,b):
        self.a = a
        self.b = b

    #待测的方法
    def add(a,b):

        return a+b