首页 > 解决方案 > 如何通过特定的浏览器作为参数。它的错误:py.test:错误:无法识别的参数:--browser IE

问题描述

我是 Sellinium/Python 的新手,并且进行了一些练习。我想用 Internet Explorer 运行这个程序,所以在命令提示符下,我给出了以下命令:

py.test -s -v mainTest.py --browser IE

当我运行上面的命令时,它显示错误为:

错误:用法:py.test [options] [file_or_dir] [file_or_dir] [...] py.test:错误:无法识别的参数:--browser IE inifile: None`` rootdir: C:\Users\Radha.Maravajhala\ PycharmProjects\RadhaSelenium\Tests

它没有识别 --browser 争论。

我如何使用特定的浏览器运行我的程序作为 py.test 命令中的参数。请帮忙。

我的代码:

主测试.py

import os
import pytest
import unittest
from executionEngine.DriverScript import driverScript
from Utilities.Constants import Constants
from selenium import webdriver

class mainTest(driverScript):

def main(self):
    print("Main Test started...")
    print("Selenium webdriver Version: %s" % (webdriver.__version__))
    driver = driverScript('IE')
    driver.getbrowserInstance()

m = mainTest()
m.main()

DriverScript.py

import os
import pytest
import unittest

from pip._internal.configuration import Configuration
from selenium import webdriver
from selenium.webdriver import Ie
from selenium.webdriver import DesiredCapabilities
from selenium.webdriver.ie.options import Options
from selenium.webdriver.common.keys import Keys
#import selenium.webdriver
from Utilities import Constants

class driverScript():

def __init__(self,browser=None):

     if browser is None:
         browser = {}
     else:
         self.browser = browser
         print(self.browser)

     self.constants = Constants.Constants()

# Method to invoke browser
def getbrowserInstance(self):
    # create a new IE session
    print("Browser invoke started")

    if (self.browser=='IE'):

       capabilities = DesiredCapabilities.INTERNETEXPLORER
       print(capabilities["platform"])
       print(capabilities["browserName"])

       driver_location = self.constants.path_ie_driver

       os.environ["webdriver.ie.driver"] = driver_location

       ie_options = Options()
       ie_options.ignore_protected_mode_settings = True
      
       driver = webdriver.Ie(driver_location, options=ie_options)

       print("Browser is Invoked")
       driver.get("http://www.amazon.co.uk")
       driver.quit()

    elif (self.browser=='Chrome'):

       capabilities = DesiredCapabilities.CHROME
       print(capabilities["platform"])
       print(capabilities["browserName"])

       driver_location = self.constants.path_chrome_driver

       os.environ["webdriver.chrome.driver"] = driver_location

       driver = webdriver.Chrome(driver_location)

       print("Chrome Browser is Invoked")
       driver.get("http://www.amazon.co.uk")
       driver.quit()

常量.py:

 class Constants():

 #Driver Locations
 path_ie_driver = "C:\\Selenium\\Drivers\\IEDriverServer.exe"
 path_chrome_driver = "C:\\Selenium\\Drivers\\chromedriver.exe"

会议.py

class Constants():

import pytest
from executionEngine.DriverScript import driverScript

# Send request variable to the fixture
# Browser value will be set from request.config.getoption (from command 
#                                                           prompt)
@pytest.yield_fixture(scope="class")
 def invoke_browser(request,browser):
     wdf = driverScript.getbrowserInstance(browser)
     driver = wdf.getbrowserInstance()

# Set class attribute and assign the variable
    if request.cls is not None:
       request.cls.driver = driver
       yield driver
 
driver.quit()

创建 2 个解析器以从命令提示符获取值

def pytest_addoption(parser):
    parser.addoption("--browser")

返回参数值

    @pytest.fixture(scope="session")
def browser(request):
    return request.config.getoption("--browser")

标签: pythoninternet-explorerbrowserargumentscommand

解决方案


看起来您对传递 python 脚本的参数有一些误解。

如果要在多个浏览器上运行脚本,则需要在代码中使用多个 Web 驱动程序。在您上面的代码中,我可以看到您只使用 IE 网络驱动程序。

另一件事,我没有看到您在哪里检查和使用从命令行传递的参数。

我建议您使用 IF..elif 条件并尝试检查其中的命令行参数。根据参数的值,您可以尝试为任何特定的 Web 浏览器执行代码段。

例子:

#!/usr/bin/python

import sys, getopt

def main(argv):
   inputfile = ''
   outputfile = ''
   try:
      opts, args = getopt.getopt(argv,"hi:o:",["ifile=","ofile="])
   except getopt.GetoptError:
      print 'test.py -i <inputfile> -o <outputfile>'
      sys.exit(2)
   for opt, arg in opts:
      if opt == '-h':
         print 'test.py -i <inputfile> -o <outputfile>'
         sys.exit()
      elif opt in ("-i", "--ifile"):
         inputfile = arg
      elif opt in ("-o", "--ofile"):
         outputfile = arg
   print 'Input file is "', inputfile
   print 'Output file is "', outputfile

if __name__ == "__main__":
   main(sys.argv[1:])

参考:

Python - 命令行参数


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