Before:
  call ale#assert#SetUpLinterTest('proto', 'protolint')
  call ale#test#SetFilename('test.proto')

After:
  call ale#assert#TearDownLinterTest()

Execute(The default command should be correct):
  AssertLinter 'protolint',
  \ ale#Escape('protolint')
  \ . ' lint'
  \ . ' -reporter=unix'
  \ . ' %s'

Execute(The callback should include any additional options):
  let b:ale_proto_protolint_executable = '/tmp/protolint'
  let b:ale_proto_protolint_config = '/tmp/protolint.yaml'

  AssertLinter '/tmp/protolint',
  \ ale#Escape('/tmp/protolint')
  \ . ' lint'
  \ . ' -config_path=' . ale#Escape('/tmp/protolint.yaml')
  \ . ' -reporter=unix'
  \ . ' %s'
