1 # -*- coding:utf-8 -*- 2  3 """ 4 在元素上执行双击操作 5 """ 6  7 from selenium import webdriver 8 from selenium.webdriver import ActionChains 9 import unittest10 11 class Actions_Element_Click(unittest.TestCase):12     def setUp(self):        13         self.driver = webdriver.Firefox()14         self.driver.get(r'F:\电子书\selenium\Selenium Testing Tools Cookbook(中文)\demo\DoubleClickDemo.html')15     16     def test_element_double_click(self):17         driver = self.driver18         message = driver.find_element_by_id('message')19         20         # message.value_of_css_property('font-size'): 获取css的属性值21         self.assertEqual('14px', message.value_of_css_property('font-size'))22         action_chains = ActionChains(driver)23         action_chains.double_click(message).perform()       #鼠标双击动作24         25         self.assertEqual('20px', message.value_of_css_property('font-size'))26         27     def tearDown(self):28         self.driver.quit()