Before: runtime ale_linters/qml/qmllint.vim After: call ale#linter#Reset() Execute(The qmllint handler should parse error messages correctly): AssertEqual \ [ \ { \ 'lnum': 2, \ 'col': 0, \ 'type': 'E', \ 'text': 'Expected token ''}''' \ } \ ], \ ale_linters#qml#qmllint#Handle(1, [ \ '/tmp/ab34cd56/Test.qml:2 : Expected token ''}''' \ ])