Copyright Mozilla Foundation

Licensed under the Apache License (Version 2.0), or the MIT license,
(the "Licenses") at your option. You may not use this file except in
compliance with one of the Licenses. You may obtain copies of the
Licenses at:

   https://www.apache.org/licenses/LICENSE-2.0
   https://opensource.org/licenses/MIT

Unless required by applicable law or agreed to in writing, software
distributed under the Licenses is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the Licenses for the specific language governing permissions and
limitations under the Licenses.

--

Test code is dedicated to the Public Domain when so designated (see
the individual files for PD/CC0-dedicated sections).