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

After:
  call ale#assert#TearDownLinterTest()

Execute(The default command should be correct):
  AssertLinter 'buf',
  \ ale#Escape('buf')
  \ . ' lint'
  \ . ' %s#include_package_files=true'

Execute(The callback should include any additional options):
  let b:ale_proto_buf_lint_executable = '/tmp/buf'
  let b:ale_proto_buf_lint_config = '/tmp/buf.yaml'

  AssertLinter '/tmp/buf',
  \ ale#Escape('/tmp/buf')
  \ . ' lint'
  \ . ' --config=' . ale#Escape('/tmp/buf.yaml')
  \ . ' %s#include_package_files=true'