python selenium 多個頁面對象類使用同一個webdriver（即只打開一個瀏覽器窗口）

class BasePage():
    """selenium基類"""

    def __init__(self, driver=None):
        self.log = Log().logger
        self.report = cm.allure_json
        self.broswer = CONF.web_broswer or 'firefox'
        self.base_url = CONF.web_url
        self.timeout = 6
        if driver is None:
            self.set_driver(self.broswer)
        else:
            self.driver = driver
            self.wait = WebDriverWait(self.driver, self.timeout)
            self.action_chain = ActionChains(self.driver)

    def set_driver(self, driver):
        if 'chrome' == driver.lower().strip():
            options = chrome_op()
            options.add_argument("--ignore-certificate-errors")
            self.driver = webdriver.Chrome(os.path.join(cm.DRIVER_PATH, 'chromedriver'),
                                           chrome_options=options)
        elif 'firefox' == driver.lower().strip():
            binary_file = CONF.firefox_binary or '/usr/bin/firefox-esr'
            executable_path = os.path.join(cm.DRIVER_PATH, 'geckodriver')
            options = firefox_op()
            options.binary = FirefoxBinary(binary_file)
            service = Service(executable_path=executable_path)
            my_profile = webdriver.FirefoxProfile()
            my_profile.accept_untrusted_certs = True
            self.driver = webdriver.Firefox(firefox_profile=my_profile, options=options,
                                            service=service)
        else:
            raise Exception('暫不支持%s瀏覽器驅動' % driver)
        self.wait = WebDriverWait(self.driver, self.timeout)
        self.action_chain = ActionChains(self.driver)

10~15行代碼，當實例化對象時，如果driver參數為None（默認），則調用set_driver方法設置webdriver，否則設置對象的driver屬性為傳入的driver參數。

使用方法如下：

class Test260161_ECS():
    def setup(self) -> None:
        self.ecs_manager_page = ecs_manager_page

    def teardown(self) -> None:
        if getattr(self, 'ecs_name', False):
            self.ecs_manager_page.search_ecs('名稱', self.ecs_name)
            result = self.ecs_manager_page.check_ecs_table_iszero()
            if result == False:
                self.ecs_manager_page.clear_ecs('名稱', self.ecs_name)
            bin_manager_page = BINManagerPage(driver=self.ecs_manager_page.driver)
            bin_manager_page.clear_bin(self.ecs_name)

在ecs_manager_page作為主測對象，bin_manager_page作為輔測對象，主測對象ecs_manager_page實例化話，不傳driver參數；而輔測對象bin_manager_page實例化時，driver參數傳入ecs_manager_page.driver屬性。從而可以達到多個頁面對象類使用同一個driver，

執行測試用例時，只會打開一個web窗口。