test: added missing test for RobotsController

Author: thorsten

tests/phpMyFAQ/Controller/RobotsControllerTest.php

@@ -0,0 +1,49 @@
+<?php
+
+namespace phpMyFAQ\Controller;
+
+use phpMyFAQ\Strings;
+use phpMyFAQ\Translation;
+use PHPUnit\Framework\MockObject\Exception;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\HttpFoundation\Response;
+use Twig\Environment;
+
+class RobotsControllerTest extends TestCase
+{
+    private Environment $twig;
+    private RobotsController $controller;
+
+    /**
+     * @throws Exception
+     * @throws \phpMyFAQ\Core\Exception
+     */
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Strings::init();
+
+        Translation::create()
+            ->setLanguagesDir(PMF_TRANSLATION_DIR)
+            ->setDefaultLanguage('en')
+            ->setCurrentLanguage('en')
+            ->setMultiByteLanguage();
+
+        $this->twig = $this->createMock(Environment::class);
+        $this->controller = new RobotsController();
+    }
+
+    /**
+     * @throws \Exception
+     */
+    public function testIndex(): void
+    {
+        $response = $this->controller->index();
+
+        $this->assertInstanceOf(Response::class, $response);
+        $this->assertEquals('text/plain', $response->headers->get('Content-Type'));
+        $this->assertEquals(Response::HTTP_OK, $response->getStatusCode());
+        $this->assertEquals('User-agent: *\nDisallow: /admin/\nSitemap: /sitemap.xml', $response->getContent());
+    }
+}