TestObjectLoader example

namespace Symfony\Component\Routing\Tests\Loader;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Routing\Loader\ObjectLoader;
use Symfony\Component\Routing\Route;
use Symfony\Component\Routing\RouteCollection;

class ObjectLoaderTest extends TestCase
{
    public function testLoadCallsServiceAndReturnsCollection()
    {
        $loader = new TestObjectLoader('some-env');

        // create a basic collection that will be returned         $collection = new RouteCollection();
        $collection->add('foo', new Route('/foo'));

        $loader->loaderMap = [
            'my_route_provider_service' => new TestObjectLoaderRouteService($collection, 'some-env'),
        ];

        $actualRoutes = $loader->load(
            'my_route_provider_service::loadRoutes',