--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\Tests\EventListener;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\EventDispatcher\EventDispatcher;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpKernel\EventListener\ValidateRequestListener;
+use Symfony\Component\HttpKernel\Event\GetResponseEvent;
+use Symfony\Component\HttpKernel\HttpKernelInterface;
+use Symfony\Component\HttpKernel\KernelEvents;
+
+class ValidateRequestListenerTest extends TestCase
+{
+ /**
+ * @expectedException \Symfony\Component\HttpFoundation\Exception\ConflictingHeadersException
+ */
+ public function testListenerThrowsWhenMasterRequestHasInconsistentClientIps()
+ {
+ $dispatcher = new EventDispatcher();
+ $kernel = $this->getMockBuilder('Symfony\Component\HttpKernel\HttpKernelInterface')->getMock();
+
+ $request = new Request();
+ $request->setTrustedProxies(array('1.1.1.1'));
+ $request->server->set('REMOTE_ADDR', '1.1.1.1');
+ $request->headers->set('FORWARDED', 'for=2.2.2.2');
+ $request->headers->set('X_FORWARDED_FOR', '3.3.3.3');
+
+ $dispatcher->addListener(KernelEvents::REQUEST, array(new ValidateRequestListener(), 'onKernelRequest'));
+ $event = new GetResponseEvent($kernel, $request, HttpKernelInterface::MASTER_REQUEST);
+
+ $dispatcher->dispatch(KernelEvents::REQUEST, $event);
+ }
+}