Before: runtime ale_linters/go/gotype.vim call ale#test#SetFilename('../go_files/testfile2.go') After: call ale#linter#Reset() Execute(The gotype callback should include other files from the directory but exclude the file itself): let dir = expand('#' . bufnr('') . ':p:h') AssertEqual \ "gotype %t ". ale#Escape(ale#path#Simplify(dir . "/testfile.go")), \ ale_linters#go#gotype#GetCommand(bufnr('')) Execute(The gotype callback should ignore test files): call ale#test#SetFilename('bla_test.go') AssertEqual \ 0, \ ale_linters#go#gotype#GetCommand(bufnr(''))