Before: call ale#assert#SetUpFixerTest('racket', 'raco_fmt') After: call ale#assert#TearDownFixerTest() Execute(The raco_fmt callback should return the correct default values): call ale#test#SetFilename('../test-files/racket/simple-script/foo.rkt') AssertFixer {'command': ale#Escape('raco') . ' fmt'} Execute(The raco_fmt callback should include custom raco_fmt options): let g:ale_racket_raco_fmt_options = "--width 100" call ale#test#SetFilename('../test-files/racket/simple-script/foo.rkt') AssertFixer {'command': ale#Escape('raco') . ' fmt ' . g:ale_racket_raco_fmt_options}