Before:
  Save g:ale_less_stylelint_executable
  Save g:ale_less_stylelint_use_global
  Save g:ale_less_stylelint_options

  unlet! b:executable

  unlet! g:ale_less_stylelint_executable
  unlet! g:ale_less_stylelint_use_global
  unlet! g:ale_less_stylelint_options

  call ale#test#SetDirectory('/testplugin/test/command_callback')
  call ale#test#SetFilename('testfile.less')

  runtime ale_linters/less/stylelint.vim

After:
  Restore

  unlet! b:executable
  unlet! b:ale_less_stylelint_executable
  unlet! b:ale_less_stylelint_use_global
  unlet! b:ale_less_stylelint_options

  call ale#test#SetFilename('test.txt')

  call ale#test#RestoreDirectory()
  call ale#linter#Reset()

Execute(node_modules directories should be discovered):
  call ale#test#SetFilename('stylelint_paths/nested/testfile.less')

  let b:executable = ale#path#Simplify(
  \   g:dir
  \   . '/stylelint_paths/node_modules/.bin/stylelint'
  \)

  AssertEqual b:executable, ale_linters#less#stylelint#GetExecutable(bufnr(''))
  AssertEqual
  \ ale#Escape(b:executable) . ' --stdin-filename %s',
  \ ale_linters#less#stylelint#GetCommand(bufnr(''))

Execute(The global override should work):
  let b:ale_less_stylelint_executable = 'foobar'
  let b:ale_less_stylelint_use_global = 1

  call ale#test#SetFilename('stylelint_paths/nested/testfile.less')

  AssertEqual 'foobar', ale_linters#less#stylelint#GetExecutable(bufnr(''))
  AssertEqual
  \ ale#Escape('foobar') . ' --stdin-filename %s',
  \ ale_linters#less#stylelint#GetCommand(bufnr(''))

Execute(Extra options should be configurable):
  let b:ale_less_stylelint_options = '--whatever'

  AssertEqual 'stylelint', ale_linters#less#stylelint#GetExecutable(bufnr(''))
  AssertEqual
  \ ale#Escape('stylelint') . ' --whatever --stdin-filename %s',
  \ ale_linters#less#stylelint#GetCommand(bufnr(''))