Before: call ale#test#SetDirectory('/testplugin/test') After: call ale#test#RestoreDirectory() call ale#linter#Reset() Execute(smlnj finds CM file if it exists): call ale#test#SetFilename('smlnj/cm/foo.sml') AssertEqual \ ale#path#Winify(g:dir . '/smlnj/cm/sources.cm'), \ ale#handlers#sml#GetCmFile(bufnr('%')) Execute(smlnj finds CM file by searching upwards): call ale#test#SetFilename('smlnj/cm/path/to/bar.sml') AssertEqual \ ale#path#Winify(g:dir . '/smlnj/cm/sources.cm'), \ ale#handlers#sml#GetCmFile(bufnr('%')) Execute(smlnj returns '' when no CM file found): call ale#test#SetFilename('smlnj/file/qux.sml') AssertEqual '', ale#handlers#sml#GetCmFile(bufnr('%')) Execute(CM-project mode enabled when CM file found): call ale#test#SetFilename('smlnj/cm/foo.sml') AssertEqual 'sml', ale#handlers#sml#GetExecutableSmlnjCm(bufnr('%')) Execute(single-file mode disabled when CM file found): call ale#test#SetFilename('smlnj/cm/foo.sml') AssertEqual '', ale#handlers#sml#GetExecutableSmlnjFile(bufnr('%')) Execute(CM-project mode disabled when CM file not found): call ale#test#SetFilename('smlnj/file/qux.sml') AssertEqual '', ale#handlers#sml#GetExecutableSmlnjCm(bufnr('%')) Execute(single-file mode enabled when CM file found): call ale#test#SetFilename('smlnj/file/qux.sml') AssertEqual 'sml', ale#handlers#sml#GetExecutableSmlnjFile(bufnr('%'))