Before:
  runtime! ale_linters/openapi/ibm_validator.vim

After:
  call ale#linter#Reset()

Execute(Problems should be parsed correctly for openapi-ibm-validator):
  AssertEqual
  \ [
  \   {
  \     'lnum': 54,
  \     'col': 0,
  \     'type': 'E',
  \     'text': 'Items with a description must have content in it.',
  \   },
  \   {
  \     'lnum': 24,
  \     'col': 0,
  \     'type': 'W',
  \     'text': 'Operations must have a non-empty `operationId`.',
  \   },
  \   {
  \     'lnum': 40,
  \     'col': 0,
  \     'type': 'W',
  \     'text': 'operationIds must follow case convention: lower_snake_case',
  \   },
  \ ],
  \ ale_linters#openapi#ibm_validator#Handle(bufnr(''), [
  \   '',
  \   '[Warning] No .validaterc file found. The validator will run in default mode.',
  \   'To configure the validator, create a .validaterc file.',
  \   '',
  \   'errors',
  \   '',
  \   '  Message :   Items with a description must have content in it.',
  \   '  Path    :   paths./settings.patch.description',
  \   '  Line    :   54',
  \   '',
  \   'warnings',
  \   '',
  \   '  Message :   Operations must have a non-empty `operationId`.',
  \   '  Path    :   paths./stats.get.operationId',
  \   '  Line    :   24',
  \   '',
  \   '  Message :   operationIds must follow case convention: lower_snake_case',
  \   '  Path    :   paths./settings.get.operationId',
  \   '  Line    :   40'
  \ ])