expectNotToPerformAssertions(); $action = ['uses' => function (ImplicitRouteBindingUser $user) { return $user; }]; $route = new Route('GET', '/test', $action); $route->parameters = ['user' => new ImplicitRouteBindingUser]; $route->prepareForSerialization(); $container = Container::getInstance(); ImplicitRouteBinding::resolveForRoute($container, $route); } } class ImplicitRouteBindingUser extends Model { // }