More tests and refactoring

src/Template/Twig.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Template;
+
+use Twig\Environment;
+use Twig\Loader\ArrayLoader;
+use App\Template\TwigExtension;
+
+class Twig extends Environment
+{
+    /**
+     * @param string[] $templates Array of templates
+     */
+    public function __construct(array $templates)
+    {
+        $loader = new ArrayLoader($templates);
+        parent::__construct($loader);
+        $this->addExtension(new TwigExtension());
+    }
+}