重现Splinter/ Selenium行为，用于测试使用Javascript的网站

Question

我有一个机器人与使用Splinter和Selenium的网站交互。该网站使用Javascript并实时更新。机器人在90%的时间内工作良好，但由于随机事件，它有时会引发异常。对我来说，调试这些事件是非常困难的，当我在调试器中，网站已经改变了。

是否有任何方式我可以记录网站数据并播放它，像vcrpy?或者无论如何我都可以记录行为，以便我可以调试和测试?

Answer 1

你能做的最接近的事情就是在各种事件中截取网页的屏幕截图。你必须使用EventFiringWebDriver。无论您想截取哪个屏幕截图，都可以调用screen_shot函数。

from selenium.webdriver.support.events import EventFiringWebDriver
from selenium.webdriver.support.events import AbstractEventListener
import os
import time
class ScreenShotListener(AbstractEventListener):
    DIR_NAME = None
    def screen_shot(self, driver):
        dir = os.path.curdir
        unique_filename = str(int(time.time() * 1000)) + ".png"
        fpath = os.path.join(dir, unique_filename)
        driver.get_screenshot_as_file(fpath)
    def before_navigate_to(self, url, driver):
        pass
    def after_navigate_to(self, url, driver):
        pass
    def before_navigate_back(self, driver):
        pass
    def after_navigate_back(self, driver):
        pass
    def before_navigate_forward(self, driver):
        pass
    def after_navigate_forward(self, driver):
        pass
    def before_find(self, by, value, driver):
        pass
    def after_find(self, by, value, driver):
        pass
    def before_click(self, element, driver):
        pass
    def after_click(self, element, driver):
        pass
    def before_change_value_of(self, element, driver):
        pass
    def after_change_value_of(self, element, driver):
        pass
    def before_execute_script(self, script, driver):
        pass
    def after_execute_script(self, script, driver):
        pass
    def before_close(self, driver):
        pass
    def after_close(self, driver):
        pass
    def before_quit(self, driver):
        pass
    def after_quit(self, driver):
        pass
    def on_exception(self, exception, driver):
        pass
driver = EventFiringWebDriver(driver, ScreenShotListener())