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vendor/symfony/twig-bridge/Tests/Extension/RuntimeLoaderProvider.php

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+<?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\Bridge\Twig\Tests\Extension;
+
+use Symfony\Bridge\Twig\Form\TwigRenderer;
+use Twig\Environment;
+
+trait RuntimeLoaderProvider
+{
+    protected function registerTwigRuntimeLoader(Environment $environment, TwigRenderer $renderer)
+    {
+        $loader = $this->getMockBuilder('Twig\RuntimeLoader\RuntimeLoaderInterface')->getMock();
+        $loader->expects($this->any())->method('load')->will($this->returnValueMap(array(
+            array('Symfony\Bridge\Twig\Form\TwigRenderer', $renderer),
+        )));
+        $environment->addRuntimeLoader($loader);
+    }
+}