Actualización

vendor/symfony/routing/Tests/Fixtures/validpattern.php

@@ -0,0 +1,18 @@
+<?php
+
+use Symfony\Component\Routing\Route;
+use Symfony\Component\Routing\RouteCollection;
+
+$collection = new RouteCollection();
+$collection->add('blog_show', new Route(
+    '/blog/{slug}',
+    ['_controller' => 'MyBlogBundle:Blog:show'],
+    ['locale' => '\w+'],
+    ['compiler_class' => 'RouteCompiler'],
+    '{locale}.example.com',
+    ['https'],
+    ['GET', 'POST', 'put', 'OpTiOnS'],
+    'context.getMethod() == "GET"'
+));
+
+return $collection;