Before:
  Save g:ale_languagetool_executable
  Save g:ale_languagetool_options

  let g:ale_languagetool_executable = 'languagetool'
  let g:ale_languagetool_options = '--autoDetect'

  call ale#assert#SetUpLinterTest('text', 'languagetool')

After:
  call ale#assert#TearDownLinterTest()

Execute(The default command should be correct):
  AssertLinter 'languagetool', ale#Escape('languagetool')
  \ . ' --autoDetect %s'

Execute(Should be able to set a custom executable):
  let g:ale_languagetool_executable = 'foobar'
  let g:ale_languagetool_options = '--language en'

  AssertLinter 'foobar' , ale#Escape('foobar')
  \ . ' --language en %s'