This simply takes all the awesome work done by Ben Constable with his phpspec-laravel repo and makes it work with Laravel's new micro-framework, Lumen.
For most details you'll want to check out the original repo readme: https://github.com/BenConstable/phpspec-laravel
Aside from obvious things like the different package name, you'll want to update your phpspec.yml like so:
extensions:
- PhpSpec\Lumen\Extension\LumenExtensionAnd instead of extending your specs from LaravelObjectBehavior you'll do so instead from LumenObjectBehavior.