#!/usr/bin/env python# -*- coding: utf-8 -*-"""@desc:学习unittest的用法注意setUp/setUpClass，tearDown/tearDownClass的区别① setUp():每个测试函数运行前运行② tearDown():每个测试函数运行完后执行③ setUpClass():必须使用@classmethod 装饰器,所有test运行前运行一次④ tearDownClass():必须使用@classmethod装饰器,所有test运行完后运行一次unittest还有一些不常用的装饰器：@unittest.skip(reason):无条件跳过测试，reason描述为什么跳过测试@unittest.skipif(conditition,reason):condititon为true时跳过测试@unittest.skipunless(condition,reason):condition不是true时跳过测试@unittest.expectedFailure:如果test失败了，这个test不计入失败的case数目"""import unittestimport timefrom selenium import webdriverclass SearchTest(unittest.TestCase):    @classmethod    def setUpClass(cls):        cls.driver = webdriver.Firefox()        cls.driver.implicitly_wait(30)        cls.driver.maximize_window()        cls.base_url = "http://www.baidu.com"        cls.driver.get(cls.base_url + "/")        cls.search_text = cls.driver.find_element_by_id("kw")        cls.search_btn = cls.driver.find_element_by_id("su")    def test_search_btn_displayed(self):        self.assertTrue(self.search_btn.is_displayed())        self.assertTrue(self.search_btn.is_enabled())    def test_search_text_maxlength(self):        max_length = self.search_text.get_attribute("maxlength")        self.assertEqual("255", max_length)    def test_search(self):        self.search_text.clear()        self.search_text.send_keys("unittest")        self.search_btn.click()        time.sleep(2)        title = self.driver.title        self.assertEqual(title, u"unittest_百度搜索")    @classmethod    def tearDownClass(cls):        # close the browser window        cls.driver.quit()if __name__ == '__main__':    unittest.main(verbosity=3)