init

config/packages/twig.php

@@ -0,0 +1,15 @@
+<?php declare(strict_types=1);
+
+use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
+
+return static function (ContainerConfigurator $containerConfigurator): void {
+    $containerConfigurator->extension('twig', [
+        'file_name_pattern' => '*.twig',
+    ]);
+
+    if ($containerConfigurator->env() === 'test') {
+        $containerConfigurator->extension('twig', [
+            'strict_variables' => true,
+        ]);
+    }
+};