Before:
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'
AssertLinter 'foobar' , ale#Escape('foobar')