selenium +chrome headless Adhoc模式渲染网页

最新推荐文章于 2022-04-18 22:18:15 发布

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最新推荐文章于 2022-04-18 22:18:15 发布

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文章标签： python 测试

本文探讨了在大规模自动化测试中使用Selenium和Chrome Headless时如何通过手动启动ChromeDriver来减少资源消耗并提高效率。介绍了手动模式相较于adhoc模式的优势，并提供了具体的Python实现代码。

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mannual和adhoc模式比较

Manual vs. Adhoc

In the script above, we start the ChromeDriver server process when we create the WebDriver object and it is terminated when we call quit(). For a one-off script, that isn’t a problem, but this can waste a nontrivial amount of time for a large test suite that creates a ChromeDriver instance for each test. Luckily, we can manually start and stop the server ourselves, and it only requires a few changes to the script above.

说的在使用selenium+chromeheadless做自动化测试时候，如果测试用例数量大，给每个测试用例启动一个浏览器要话费更多的时间。

#coding=utf8
import os,traceback
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.chrome.options import Options

service = webdriver.chrome.service.Service('/home/xxxx/Downloads/phantomjs-2.1.1-linux-x86_64/bin/chromedriver')
service.start()
class ChromeHeadless(object):

    def __init__(self):

        chrome_options = Options()
        chrome_options.add_argument("--headless")
        chrome_options.add_argument('--disable-gpu')
        chrome_options.add_argument('--disable-images')
        chrome_options.add_argument('--disable-plugins')
        chrome_options.binary_location = '/opt/google/chrome/chrome'
        #prefs = {"profile.managed_default_content_settings.images": 2}  # 关图片
        #chrome_options.add_experimental_option("prefs", prefs)
        self.chrome_options=chrome_options
        self.driver = webdriver.Remote(service.service_url,desired_capabilities=self.chrome_options.to_capabilities())
        self.driver.set_page_load_timeout(120)

    def fun(self,url):

            try:
                proxy_http_list = list(r.smembers('kuaidaili:http')) + list(r.smembers('zhima'))
                pr=random.choice(proxy_http_list)
                self.chrome_options.add_argument('--proxy-server=%s'%pr)    #设置代理
                self.driver.start_session(self.chrome_options.to_capabilities())
                #print self.driver.session_id  
                self.driver.get(url)

            except Exception,e:

                print '\033[7;32;0m%s\033[0m' %traceback.format_exc()