Before: call ale#assert#SetUpLinterTest('perl', 'perlcritic') call ale#test#SetFilename('test.pl') let g:ale_perl_perlcritic_profile = '' After: unlet! b:readme_path call ale#assert#TearDownLinterTest() Execute(The command should be correct with g:ale_perl_perlcritic_showrules off): let b:ale_perl_perlcritic_showrules = 0 AssertLinter 'perlcritic', ale#Escape('perlcritic') \ . ' --verbose ' . ale#Escape('%l:%c %m\n') . ' --nocolor' Execute(The command should be correct with g:ale_perl_perlcritic_showrules on): let b:ale_perl_perlcritic_showrules = 1 AssertLinter 'perlcritic', ale#Escape('perlcritic') \ . ' --verbose ' . ale#Escape('%l:%c %m [%p]\n') . ' --nocolor' Execute(The command search for the profile file when set): let b:ale_perl_perlcritic_profile = 'README.md' let b:readme_path = ale#path#Simplify(expand('%:p:h:h:h') . '/README.md') AssertLinter 'perlcritic', ale#Escape('perlcritic') \ . ' --verbose ' . ale#Escape('%l:%c %m\n') . ' --nocolor' \ . ' --profile ' . ale#Escape(b:readme_path) Execute(Extra options should be set appropriately): let b:ale_perl_perlcritic_options = 'beep boop' AssertLinter 'perlcritic', ale#Escape('perlcritic') \ . ' --verbose ' . ale#Escape('%l:%c %m\n') . ' --nocolor' \ . ' beep boop'