test_verbosity_guess_miss_match fails with sources from PyPI

[frenzymadness]

If you take tox sources from PyPI, there is no tox.ini file in them, which makes test_verbosity_guess_miss_match fail because tox complains about missing config file and therefore the output is not as expected.

The output is:

tests/config/cli/test_parse.py::test_verbosity_guess_miss_match FAILED
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> traceback >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

capsys = <_pytest.capture.CaptureFixture object at 0x7fc51dd0b350>

    def test_verbosity_guess_miss_match(capsys: CaptureFixture) -> None:
        result = get_options("-rv")
        assert result.parsed.verbosity == 3
    
        assert logging.getLogger().level == logging.INFO
    
        for name in ("distlib.util", "filelock"):
            logger = logging.getLogger(name)
            assert logger.disabled
        logging.error("E")
        logging.warning("W")
        logging.info("I")
        logging.debug("D")
    
        out, err = capsys.readouterr()
>       assert out == "ROOT: E\nROOT: W\nROOT: I\n"
E       AssertionError: assert 'ROOT: No tox... W\nROOT: I\n' == 'ROOT: E\nROOT: W\nROOT: I\n'
E         + ROOT: No tox.ini or setup.cfg or pyproject.toml found, assuming empty tox.ini at /builddir/build/BUILD/tox-4.2.6
E           ROOT: E
E           ROOT: W
E           ROOT: I

capsys     = <_pytest.capture.CaptureFixture object at 0x7fc51dd0b350>
err        = ''
logger     = <Logger filelock (INFO)>
name       = 'filelock'
out        = 'ROOT: No tox.ini or setup.cfg or pyproject.toml found, assuming empty tox.ini at /builddir/build/BUILD/tox-4.2.6\nROOT: E\nROOT: W\nROOT: I\n'
result     = Options(parsed=Parsed(colored='no', verbose=3, quiet=0, exit_and_dump_after=0, config_file=None, work_dir=None, root_d...acy': <function legacy at 0x7fc51df1e0c0>, 'le': <function legacy at 0x7fc51df1e0c0>}, log_handler=<ToxHandler (INFO)>)

tests/config/cli/test_parse.py:35: AssertionError

[gaborbernat]

This falls under the flag of not being supported by core tox, but we'll accept a PR 😊 to fix this.

[hroncok]

Fixed in #2939