public function testGroupSetsOptions()
 {
     $routes = new RouteCollection();
     $routes->group('admin', ['namespace' => 'Admin'], function ($routes) {
         $routes->add('users/list', 'Users::list');
     });
     $expected = ['admin/users/list' => '\\Admin\\Users::list'];
     $this->assertEquals($expected, $routes->getRoutes());
 }