Before: runtime ale_linters/json/jq.vim After: call ale#linter#Reset() Execute (Should parse error correctly): AssertEqual \ [ \ { \ 'lnum': 1, \ 'col': 9, \ 'text': 'Expected another array element', \ } \ ], \ ale_linters#json#jq#Handle(0, [ \ 'parse error: Expected another array element at line 1, column 9' \ ])