More testing. Removed Gitea actions.

tests/Template/TwigTest.php

@@ -0,0 +1,20 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests;
+
+use PHPUnit\Framework\TestCase;
+use App\Template\Twig;
+use Twig\TwigFilter;
+
+final class TwigTest extends \PHPUnit\Framework\TestCase
+{
+    public function testInstance(): void
+    {
+        $obj = new Twig(['template' => 'start {{ var }} end']);
+        $template = $obj->load('template');
+        $output = $template->render(['var' => 'middle']);
+        $this->assertEquals('start middle end', $output);
+    }
+}