Tests: User to be warned about incorrect delimiter

[miskopo]

Test if the error message is descriptive and informative when incorrect
delimiter is supplied in the configuration file.

Related: https://bugzilla.redhat.com/show_bug.cgi?id=2079739

Signed-off-by: Michal Polovka [email protected]

[miskopo]

Since caplog may seem shaby, I've also tested negative scenario and it seems to be working as expected.

>           assert "mumbo jumbo" in caplog.text
E           assert 'mumbo jumbo' in "ERROR    root:config.py:94 Unable to parse /tmp/tmpio_skpj3: Source contains parsing errors: '/tmp/tmpio_skpj3'\n\t[line  2]: 'output_type;human\\n'\n"
E            +  where "ERROR    root:config.py:94 Unable to parse /tmp/tmpio_skpj3: Source contains parsing errors: '/tmp/tmpio_skpj3'\n\t[line  2]: 'output_type;human\\n'\n" = <_pytest.logging.LogCaptureFixture object at 0x7f141af274f0>.text

tests/test_options.py:138: AssertionError

[rcritten]

I think using the caplog fixture from pytest is pretty clever. This LGTM.