嘿，细小伙伴们！今天我们要聊一聊Python编程中一个超级关键的东西——单元测试！别细小kan这玩意儿单元测试，它可是Neng帮你提升代码质量，让你的程序geng稳稳当当、geng可靠的神奇工具哦！

啥是单元测试？

单元测试， 轻巧松就是对你写的个个细小功Neng进行测试，kankan它是不是按照你预期的那样干活。就像考试一样，单元测试Neng帮你找到代码中的错误，让你的程序geng有力巨大。

Python单元测试工具：unittest

Python有一个超级优良用的单元测试工具，叫unittest。它就像一个有力巨大的老师，Neng帮你检查代码，确保它没有问题。

比如 你Neng用unittest来测试一个函数，kankan它输入不同的值，是不是Neng输出正确的后来啊。

        
def add:
    return a + b

import unittest

class TestAddFunction: def test_add: self.assertEqual, 3) self.assertEqual, -3) self.assertEqual, 0) self.assertEqual, 4.0) self.assertEqual, 0.5) self.assertEqual, -4.0) self.assertEqual, -1) self.assertEqual, 1) self.assertEqual, 1) self.assertEqual, 1) self.assertEqual, 2) self.assertEqual, -2) self.assertEqual, 0) self.assertEqual, 0) self.assertEqual, 1.5) self.assertEqual, 1.5) self.assertEqual, 1.0) self.assertEqual, -1.0) self.assertEqual, 0.0) self.assertEqual, 0.0) self.assertEqual, 0.3) self.assertEqual, 0.3) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.0) self.assertEqual, 0.0) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual, -0.1) self.assertEqual, 0.1) self.assertEqual, 0.1) self.assertEqual, -0.1) self.assertEqual(add(0.0, -0.