[TASK] Mitigate deprecated fluid TemplateView in favour of ViewFactor…

…yInterface

Since TYPO3 v13 directly instantiating a concrete view has been
replaced with a more generic `ViewFactoryInterface` along with
default fluid template based variant.

To keep functional tests hard as possible we need to work around
the deprecation with TYPO3 v13 by using a version check in the
ViewHelper related functional tests to use either the factory or
the old way for dual TYPO3 version compatibility.

[1] https://docs.typo3.org/c/typo3/cms-core/main/en-us/Changelog/13.3/Feature-104773-GenericViewFactory.html

Tests/Functional/ViewHelpers/ExtensionActiveViewHelperTest.php

@@ -8,6 +8,9 @@
 use PHPUnit\Framework\Attributes\DataProvider;
 use PHPUnit\Framework\Attributes\Test;
 use TYPO3\CMS\Core\Information\Typo3Version;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\View\ViewFactoryData;
+use TYPO3\CMS\Core\View\ViewFactoryInterface;
 use TYPO3\CMS\Fluid\View\TemplateView;
 use TYPO3\TestingFramework\Core\Functional\FunctionalTestCase;
 use TYPO3Fluid\Fluid\Core\Cache\FluidCacheInterface;
@@ -87,11 +90,18 @@ public static function renderDataProvider(): Generator
     #[Test]
     public function render(string $template, array $variables, string $expected): void
     {
-        $view = new TemplateView();
+        if ((new Typo3Version())->getMajorVersion() < 13) {
+            $view = new TemplateView();
+            $view->getRenderingContext()->getViewHelperResolver()->addNamespace('deepl', 'WebVision\\Deepltranslate\\Core\\ViewHelpers');
+            $view->getRenderingContext()->setCache(self::$cache);
+            $view->getRenderingContext()->getTemplatePaths()->setTemplateSource($template);
+        } else {
+            $view = GeneralUtility::makeInstance(ViewFactoryInterface::class)->create(new ViewFactoryData());
+            $view->getRenderingContext()->getViewHelperResolver()->addNamespace('deepl', 'WebVision\\Deepltranslate\\Core\\ViewHelpers');
+            $view->getRenderingContext()->setCache(self::$cache);
+            $view->getRenderingContext()->getTemplatePaths()->setTemplateSource($template);
+        }
         $view->assignMultiple($variables);
-        $view->getRenderingContext()->getViewHelperResolver()->addNamespace('deepl', 'WebVision\\Deepltranslate\\Core\\ViewHelpers');
-        $view->getRenderingContext()->setCache(self::$cache);
-        $view->getRenderingContext()->getTemplatePaths()->setTemplateSource($template);
         static::assertSame($expected, $view->render());
     }
 }