标签：

一、BasePage介绍

创建一个BasePage类，对Selenium Api进行二次封装

为了快速创建项目并投产，用到的Selenium Api才进行封装，没用到的则不封装

优先封装最重要的几个要领：

初始化webdriver

元素定位（不封装元素操纵要领，，例如send_keys）

浏览器加载页面

二、Selenium Api 二次封装 ├── pages │?? ├── __init__.py │?? └── base_page.py └── utils └── __init__.py

base_page.py

from selenium import webdriver from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.support import expected_conditions as EC DOMAIN = 'https://www.tapd.cn/' TIMEOUT = 10 POLL_FREQUENCY = 0.5 class BasePage(): def __init__(self, driver=None, path=None): self.driver = driver if driver != None else webdriver.Chrome() self.get_url(path) def find_element(self, locator): WebDriverWait(driver=self.driver, timeout=TIMEOUT, poll_frequency=POLL_FREQUENCY).until( EC.visibility_of_element_located(locator)) return self.driver.find_element(*locator) def get_url(self, path=None): if path != None: url = URL + path else: url = None if url != None: self.driver.get(url) 三、优化base_page

DOMAIN,TIMEOUT,POLL_FREQUENCY这几个全局变量是随时可以转变的，我们称为魔法变量，会特意建一个文件存起来，定名为: constants.py ，本项目存放在utils目录 (所有的url也可放在单独的一个文件叫urls.py，区别于constants.py)。

编写一个dirver工具类（单例模式），实现只打开和封锁一次浏览器，存放在se_utils.py，用于打点启动差此外浏览器的开关。

├── pages │?? ├── __init__.py │?? └── base_page.py ├── run_case │?? └── __init__.py └── utils ├── __init__.py ├── constants.py └── se_utils.py

constants.py

DOMAIN = 'https://www.tapd.cn/' LOGIN_URL = '/cloud_logins/login' TIMEOUT = 10 POLL_FREQUENCY = 0.5

se_utils.py

from selenium import webdriver class Driver(): _driver = None @classmethod def get_driver(cls, browser_name='Chrome'): if cls._driver == None: if browser_name == 'Chrome': cls._driver = webdriver.Chrome() elif browser_name == 'Firefox': cls._driver = webdriver.Firefox() elif browser_name == 'Safari': cls._driver == webdriver.Safari() elif browser_name == 'Opera': cls._driver == webdriver.Opera() elif browser_name == 'edge': cls._driver == webdriver.Edge() elif browser_name == 'Ie': cls._driver == webdriver.Ie() else: raise NameError( "Not found %s browser,You can enter 'Chrome', 'Firefox', 'Ie', 'Edge', 'Safari',Opera" % browser_name) return cls._driver @classmethod def quit_driver(cls): if cls._driver: cls._driver.quit() cls._driver = None

base_page.py

from selenium.webdriver.support.wait import WebDriverWait from selenium.webdriver.support import expected_conditions as EC from utils.constants import TIMEOUT, POLL_FREQUENCY, DOMAIN from utils.se_utils import Driver class BasePage(): def __init__(self, path=None): self.driver = Driver.get_driver() self.driver.maximize_window() self.get_url(path) def find_element(self, locator): WebDriverWait(driver=self.driver, timeout=TIMEOUT, poll_frequency=POLL_FREQUENCY).until( EC.visibility_of_element_located(locator)) return self.driver.find_element(*locator) def get_url(self, path=None): if path != None: url = DOMAIN + path else: url = None if url != None: self.driver.get(url) 四、其他页面担任BasePage

编写两个页面类，登录页和登陆告成后的首页

页面类里包罗元素定位和用例

login_page.py

from base_page import BasePage, By from home_page import HomePageAction class LoginPage(BasePage): username_locator = (By.CSS_SELECTOR, '#username') password_locator = (By.CSS_SELECTOR, '#password_input') login_button = (By.CSS_SELECTOR, '#tcloud_login_button') def username_input_box(self): return self.find_element(self.username_locator) def password_input_box(self): return self.find_element(self.password_locator) def login_btn(self): return self.find_element(self.login_button) class LoginPageAction(LoginPage): def login(self, username, password): self.username_input_box().clear() self.username_input_box().send_keys(username) self.password_input_box().clear() self.password_input_box().send_keys(password) self.login_btn().click() return HomePageAction()

home_page.py

from base_page import BasePage, By class HomePage(BasePage): user_title_locator = (By.CSS_SELECTOR, '.avatar-text-default.avatar-Q') def user_title(self): return self.find_element(self.user_title_locator) class HomePageAction(HomePage): @property def get_user_title(self): return self.user_title().get_attribute('title')

Web自动化测试项目（二）BasePage实现