智能等待页面元素(显示的等待同步测试)

 1 # -*- coding:utf-8 -*-

 2 

 3 from selenium import webdriver

 4 from selenium.webdriver.support.ui import WebDriverWait

 5 

 6 driver = webdriver.Firefox()

 7 driver.get('http://demo.tutorialzine.com/2009/09/simple-ajax-website-jquery/demo.html')

 8 

 9 page4button = driver.find_element_by_link_text('Page 4')

10 page4button.click()

11 

12 #设置等待时间10秒

13 wait = WebDriverWait(driver, 10)

14 

15 try:

16     #在10秒内每500毫秒检查一次元素是否存在, 10秒后元素不存在则提示 tester

17     wait.until(lambda x: x.find_element_by_id('pageContent1'), 'tester')

18 except Exception as e:

19     print e