python27+selenium3自动化登录测试

#encoding:utf-8
'''
方法：通过selenium的webdriver模块结合unittest单元测试框架自动化登录系统，下文枚举了几个测试用例登录情况，其中包括用户名和密码的验证以及滑动模块的滑动验证。
作者：范先生
时间：2018年4月
'''
from selenium import webdriver
from selenium.webdriver.common.action_chains import ActionChains
import unittest
import time

class LoginCase(unittest.TestCase):
    def setUp(self):
        self.driver = webdriver.Chrome(executable_path="D:\\4software\\Python\\python27\\driver\\chrome\\chromedriver")
        self.driver.maximize_window()
    
    #定义登录系统方法
    def Login(self,username,password,offset):
        self.driver.get("http://192.168.20.21")
        time.sleep(2)
        self.driver.find_element_by_id("username").clear()
        self.driver.find_element_by_id("username").send_keys(username)
        self.driver.find_element_by_id("password").clear()
        self.driver.find_element_by_id("password").send_keys(password)
        source =self.driver.find_element_by_xpath("//*[@id='form1']/div/label[3]/div/div/div[3]/div")
        ActionChains(self.driver).drag_and_drop_by_offset(source, offset, 0).perform()
        time.sleep(1)
        self.driver.find_element_by_xpath("//*[@id='form1']/div/button").click()
        time.sleep(5)

    def test_login_success(self):
        '''用户名和密码正确的情况'''
        self.Login('superadmin','superxxxxx123',300)
        link = self.driver.find_element_by_xpath("//*[@id='button-1252-btnInnerEl']")
        # 用assertTrue断言“上网用户管理”在"//*[@id='button-1252-btnInnerEl']"里面
        self.assertTrue(u'上网用户管理' in link.text)
        self.driver.get_screenshot_as_file("D:\\4software\\Python\\script\\untitled\\login_success.png")
        print "Login is ok !"

    def test_paswd_error(self):
        '''用户名正确，密码错误的情况'''
        self.Login('superadmin','1234567',300)
        error_message = self.driver.find_element_by_xpath('//*[@id="dvMsgCT"]').text
        self.assertIn(u'帐号或密码错误',error_message)
        self.driver.get_screenshot_as_file("D:\\4software\\Python\\script\\untitled\\login_paswd_error.png")
        print "assert is right !"

    def test_paswd_tabsoms(self):
        '''用户名正确，密码非法字符的情况'''
        self.Login('superadmin','######',300)
        error_message = self.driver.find_element_by_xpath('//*[@id="dvMsgCT"]').text
        self.assertIn(u'帐号或密码错误',error_message)
        self.driver.get_screenshot_as_file("D:\\4software\\Python\\script\\untitled\\login_paswd_tabsomes.png")
        print "assert is right !"

    def test_paswd_null(self):
        '''用户名正确，密码为空'''
        self.Login('superadmin','',300)
        error_message = self.driver.find_element_by_xpath('//*[@id="dvMsgCT"]').text
        self.assertIn(u'账号或密码不能为空',error_message)
        self.driver.get_screenshot_as_file("D:\\4software\\Python\\script\\untitled\\login_paswd_null.png")
        print "assert is right !"

    def test_paswd_offset_Low(self):
        '''用户名正确，密码正确，滑块没有移动到指定位置！'''
        self.Login('superadmin','supermanager123',100)
        error_message = self.driver.find_element_by_xpath('//*[@id="dvMsgCT"]').text
        self.assertIn(u'请拖动滑动解锁验证！',error_message)
        self.driver.get_screenshot_as_file("D:\\4software\\Python\\script\\untitled\\login_paswd_offset_Low.png")
        print "assert is right !"

    def tearDown(self):
        time.sleep(2)
        # print '/n'
        # print u"测试通过!"
        self.driver.quit()

if __name__=="__main__":
    unittest.main()
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执行结果：

D:\4software\Python\python27\install\python.exe D:/4software/Python/script/untitled/login.py
Login is ok !
.assert is right !
.assert is right !
.assert is right !
.assert is right !
.
----------------------------------------------------------------------
Ran 5 tests in 126.282s

OK