urllib : TypeError: Cannot mix str and non-str arguments

[Vincent MONTÉCOT]

I'm trying to get the most minimalist example possible to ensure my setup is correct.

Yet, when I try to run the following test file :

test_base.py :

from selenium import webdriver

def test_base():
    chrome_driver = webdriver.Chrome()
    chrome_driver.get("https://google.com/")

I get the following :

> pytest path/to/test_base.py
...
        url        = 'http://localhost:47883/session'
        urlopen_kw = {'body': '{"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "pageLoadStrategy": "normal", "goog:chromeOptions": {"extensions": [], "args": []}}}}', 'request_url': 'http://localhost:47883/session'}
../pythons/3.9.7/venv/lib/python3.9/site-packages/urllib3/poolmanager.py:382: in urlopen
    redirect_location = urljoin(url, redirect_location)
        conn       = <urllib3.connectionpool.HTTPConnectionPool object at 0x7f619c2788e0>
        kw         = {'assert_same_host': False, 'body': '{"capabilities": {"firstMatch": [{}], "alwaysMatch": {"browserName": "chrome", "p...ntent-Type': 'application/json;charset=UTF-8', 'User-Agent': 'selenium/4.10.0 (python linux)'}, 'redirect': False, ...}
        method     = 'POST'
        redirect   = True
        redirect_location = <MagicMock name='mock.get_redirect_location()' id='140057205906208'>
        response   = <MagicMock id='140057206275904'>
        self       = <urllib3.poolmanager.PoolManager object at 0x7f619c00a250>
        u          = Url(scheme='http', auth=None, host='localhost', port=47883, path='/session', query=None, fragment=None)
        url        = 'http://localhost:47883/session'
../pythons/3.9.7/lib/python3.9/urllib/parse.py:532: in urljoin
    base, url, _coerce_result = _coerce_args(base, url)
        allow_fragments = True
        base       = 'http://localhost:47883/session'
        url        = <MagicMock name='mock.get_redirect_location()' id='140057205906208'>
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

args = ('http://localhost:47883/session', <MagicMock name='mock.get_redirect_location()' id='140057205906208'>), str_input = True, arg = <MagicMock name='mock.get_redirect_location()' id='140057205906208'>

    def _coerce_args(*args):
        # Invokes decode if necessary to create str args
        # and returns the coerced inputs along with
        # an appropriate result coercion function
        #   - noop for str inputs
        #   - encoding function otherwise
        str_input = isinstance(args[0], str)
        for arg in args[1:]:
            # We special-case the empty string to support the
            # "scheme=''" default argument to some functions
            if arg and isinstance(arg, str) != str_input:
>               raise TypeError("Cannot mix str and non-str arguments")
E               TypeError: Cannot mix str and non-str arguments

arg        = <MagicMock name='mock.get_redirect_location()' id='140057205906208'>
args       = ('http://localhost:47883/session', <MagicMock name='mock.get_redirect_location()' id='140057205906208'>)
str_input  = True

../pythons/3.9.7/lib/python3.9/urllib/parse.py:125: TypeError

Here are the versions I use :
Python = 3.9.7
Pytest = 7.3.2
Pytest-selenium = 4.10

I also tried with and without the --driver parameter option for an identical result.

What did I get wrong on the pytest-selenium point of vier?

[Jim Brännlund]

From the example you provided, you're not using this plugin.

It should look like:

test_base.py

def test_base(driver):
    driver.get("https://google.com/")

Given you've passed in the --driver chrome argument to pytest.

Also, there's no 4.10 version of this plugin. Latest is 4.0.1.