1断言 代码
# -*-coding:utf-8-*-
from selenium import webdriver
import time as t
driver = webdriver.Chrome()
driver.maximize_window()
driver.get('https://www.baidu.com')
driver.find_element_by_id('u1').find_element_by_class_name('lb').click()
t.sleep(3)
driver.find_element_by_id('TANGRAM__PSP_10__footerULoginBtn').click()
t.sleep(3)
driver.find_element_by_id('TANGRAM__PSP_10__submit').click()
t.sleep(2)
element = driver.find_element_by_css_selector('#TANGRAM__PSP_10__error')
assert u'请您输入手机/邮箱/用户名' in element.text
driver.quit()