Cannot execute custom Selenium assert function from user-extensions.js file, when running Python RC against Selenium server

问题

I'm trying to export a Selenium script to Python from the Selenium IDE. I am using a few user-extension.js functions though (which are working in Selenium IDE). After exporting to Python, the generated script looks like this:

from selenium import selenium
import unittest, time, re

class new_selenium_test(unittest.TestCase):
    def setUp(self):
        self.verificationErrors = []
        self.selenium = selenium("localhost", 4444, "*chrome", "http://localhost/")
        self.selenium.start()

    def test_selenium_assert_something(self):
        sel = self.selenium
        # sel.assert_something("abc=1", "x=126")

    def tearDown(self):
        self.selenium.stop()
        self.assertEqual([], self.verificationErrors)

if __name__ == "__main__":
    unittest.main()

Note that the most interesting line, where I call my user extension code (function "assert_something", which maps on function "assertSomething" in my user-extensions.js file), is commented out. When I activate that line and run the script against Selenium server like this:

py.test new-selenium-test.py

I get an error like this:

AttributeError: 'selenium' object has no attribute 'assert_something'

Any idea why Selenium IDE comments out my custom call, and why it does not execute it from Python?

Note that I have started the Selenium server like this:

java -jar selenium-server-standalone-2.0rc2.jar -userExtensions /path/user-extensions.js

Thanks for your help!

回答1:

You need to rewrite your custom JavaScript functions in Python, as described here:

http://groups.google.com/group/selenium-users/browse_thread/thread/e927dad7e6cb2944/1712b997934cece5

It can't connect the Python object to your custom JS, so it leaves that comment there to remind you to implement it in Python.

来源：https://stackoverflow.com/questions/6747441/cannot-execute-custom-selenium-assert-function-from-user-extensions-js-file-whe