public function testRepositoriesAreRegistered()
 {
     $expectations = ['boomcms.repositories.asset' => Repositories\Asset::class, 'boomcms.repositories.group' => Repositories\Group::class, 'boomcms.repositories.page' => Repositories\Page::class, 'boomcms.repositories.person' => Repositories\Person::class, 'boomcms.repositories.tag' => Repositories\Tag::class, 'boomcms.repositories.template' => Repositories\Template::class, 'boomcms.repositories.url' => Repositories\URL::class];
     $app = m::mock(Application::class);
     foreach ($expectations as $key => $class) {
         $app->shouldReceive('singleton')->once()->with($key, m::any());
     }
     $sp = new RepositoryServiceProvider($app);
     $sp->register();
     foreach ($expectations as $key => $class) {
         $this->assertInstanceOf($class, App::offsetGet($key));
     }
 }