DefaultExceptionSubscriberTest.php

<?php

namespace Drupal\Tests\serialization\Unit\EventSubscriber;

use Drupal\serialization\Encoder\JsonEncoder;
use Drupal\serialization\EventSubscriber\DefaultExceptionSubscriber;
use Drupal\Tests\UnitTestCase;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\ExceptionEvent;
use Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException;
use Symfony\Component\HttpKernel\HttpKernelInterface;
use Symfony\Component\Serializer\Serializer;

/**
 * @coversDefaultClass \Drupal\serialization\EventSubscriber\DefaultExceptionSubscriber
 * @group serialization
 */
class DefaultExceptionSubscriberTest extends UnitTestCase {
    
    /**
     * @covers ::on4xx
     */
    public function testOn4xx() {
        $kernel = $this->prophesize(HttpKernelInterface::class);
        $request = Request::create('/test');
        $request->setRequestFormat('json');
        $e = new MethodNotAllowedHttpException([
            'POST',
            'PUT',
        ], 'test message');
        $event = new ExceptionEvent($kernel->reveal(), $request, HttpKernelInterface::MASTER_REQUEST, $e);
        $subscriber = new DefaultExceptionSubscriber(new Serializer([], [
            new JsonEncoder(),
        ]), []);
        $subscriber->on4xx($event);
        $response = $event->getResponse();
        $this->assertInstanceOf(Response::class, $response);
        $this->assertEquals('{"message":"test message"}', $response->getContent());
        $this->assertEquals(405, $response->getStatusCode());
        $this->assertEquals('POST, PUT', $response->headers
            ->get('Allow'));
        $this->assertEquals('application/json', $response->headers
            ->get('Content-Type'));
    }

}