第三篇:web自动化动态调试方法和selenium2library库结合_seleniumlibrary动态

一、基本思路

      每次使用open browser浏览器时都将当前的会话session_id和 excutor_url 按存在本地，在每一次加载senlium2brary库时候就使用ReuseBrowser去保存最新加载id和url。

二 、selenium2library库文件新增如下：

2.1 在selenium2library目录下增加getb.py文件

getb.py文件内容如下：

#-*- coding:utf-8 -*-
from selenium.webdriver import Remote
from selenium.webdriver.chrome import options
 
class ReuseBrowser(Remote):
 
    def __init__(self, command_executor, session_id):
        self.r_session_id = session_id
        if command_executor and session_id:
            Remote.__init__(self, command_executor=command_executor, desired_capabilities={})
 
    def start_session(self, desired_capabilities, browser_profile=None):
        capabilities = {'desiredCapabilities': {}, 'requiredCapabilities': {}}
        for k, v in desired_capabilities.items():
            if k not in ('desiredCapabilities', 'requiredCapabilities'):
                capabilities['desiredCapabilities'][k] = v
            else:
                capabilities[k].update(v)
        if browser_profile:
            capabilities['desiredCapabilities']['firefox_profile'] = browser_profile.encoded
 
        self.w3c = "specificationLevel" in self.capabilities
        self.capabilities = options.Options().to_capabilities()
        self.session_id = self.r_session_id
        self.w3c = False
 
class FileHandle():
    def __init__(self):
        self.file_path="C:\\ktmp\\browserdriverinfo.txt"
    def write_file(self,data):
        if not os.path.exists(self.file_path):
            with open(self.file_path,"w") as fp:
                fp.write(data)
                fp.close()
        else:
            datas=self.read_file()
            if datas and data:
                if str(datas[-1].split("|")[0])!=str(data.split("|")[0]):#如果text中数据存的日期和新现有日期不同就直接覆盖原有数据（即只存当天数据）
                    with open(self.file_path, "w") as fp:
                        fp.write(data)
                        fp.close()
                else:
                    with open(self.file_path, "a") as fp:#如果相同就就追加数据
                        fp.write("\n"+data)
                        fp.close()
 
            elif not datas and data:
                with open(self.file_path, "w") as fp:
                    fp.write(data)
                    fp.close()
 
    def read_file(self):
        if  not os.path.exists(self.file_path):
            raise Exception,u"未找处在自动化会话状态的浏览器和驱动，请检查!"
        else:
            with open(self.file_path, "r") as fp:
                return fp.readlines()

2.2在selenium2library\keywords\_browsermanagement.py文件三处修改：

第一处增加代码如下：

第二处增加：

        print "executor_url:",browser.command_executor._url
        print "session_id:",browser.session_id
        date=time.strftime('%Y%m%d',time.localtime(time.time()))
        getb.FileHandle().write_file(date+"|"+browser.command_executor._url+"|"+browser.session_id)

第三处修改如下 ：

代码：

    def get_browser(self, executor_url=None, session_id=None, alias=None,remote_url=False,
                    desired_capabilities=None,ff_profile_dir=None):
        executor_url=executor_url
        session_id=session_id
        if executor_url==None or session_id==None:
            data=getb.FileHandle().read_file()
            if data:
                data=data[-1].split("|")
                executor_url=data[1].strip("\n")
                session_id=data[2].strip("\n")
            else:
                print "No browsers and drivers in the automated session state are found, please check!"
        try:
            browser =getb.ReuseBrowser(command_executor=executor_url, session_id=session_id)
            return self._cache.register(browser, alias)
        except Exception:
            print Exception
       

2.3修改selenium2library中__init__().py文件如下：

和unitest等自动化用例管理框架结合就更加简单了

问题1:如果报错是：WebDriverException: Message: chrome not reachable----表示浏览器驱动存在，但是对于的浏览器窗口关闭。
问题2：如果报错是：URLError: <urlopen error [Errno 10061] >----表示浏览器驱动不存在