Before: call ale#assert#SetUpLinterTest('eruby', 'erblint') call ale#test#SetFilename('dummy.html.erb') let g:ale_eruby_erblint_executable = 'erb_lint' let g:ale_eruby_erblint_options = '' After: call ale#assert#TearDownLinterTest() Execute(Executable should default to erb_lint): AssertLinter 'erb_lint', ale#Escape('erb_lint') \ . ' --format json --stdin %s' Execute(Should be able to set a custom executable): let g:ale_eruby_erblint_executable = 'bin/erblint' AssertLinter 'bin/erblint' , ale#Escape('bin/erblint') \ . ' --format json --stdin %s' Execute(Setting bundle appends 'exec erb_lint'): let g:ale_eruby_erblint_executable = 'path to/bundle' AssertLinter 'path to/bundle', ale#Escape('path to/bundle') \ . ' exec erb_lint' \ . ' --format json --stdin %s'