[BUGFIX] Add some tests for CsvHeaderViewHelper

Tests/Functional/ViewHelpers/CsvHeaderViewHelperTest.php

@@ -0,0 +1,64 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Extcode\Cart\Tests\Functional\ViewHelpers;
+
+/*
+ * This file is part of the package extcode/cart.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+use Codappix\Typo3PhpDatasets\TestingFramework;
+use PHPUnit\Framework\Attributes\Test;
+use TYPO3\CMS\Core\Utility\GeneralUtility;
+use TYPO3\CMS\Core\View\ViewFactoryData;
+use TYPO3\CMS\Core\View\ViewFactoryInterface;
+use TYPO3\CMS\Core\View\ViewInterface;
+use TYPO3\TestingFramework\Core\Functional\FunctionalTestCase;
+
+final class CsvHeaderViewHelperTest extends FunctionalTestCase
+{
+    use TestingFramework;
+
+    public function setUp(): void
+    {
+        $this->testExtensionsToLoad[] = 'extcode/cart';
+
+        parent::setUp();
+    }
+
+    #[Test]
+    public function headerExportsToCsvLine(): void
+    {
+        $template = __DIR__ . '/Fixtures/CsvHeader.html';
+        $view = $this->getView($template);
+        $content = $view->render();
+
+        self::assertSame(
+            '"Order Number","Order Date","Invoice Number","Invoice Date","Salutation","Title","FirstName","LastName"' . "\n",
+            $content
+        );
+    }
+
+    #[Test]
+    public function headerExportsToCsvLineWithDifferentDelimAndQuote(): void
+    {
+        $template = __DIR__ . '/Fixtures/CsvHeaderWithDifferentDelimAndQuote.html';
+        $view = $this->getView($template);
+        $content = $view->render();
+
+        self::assertSame(
+            '\'Order Number\'|\'Order Date\'|\'Invoice Number\'|\'Invoice Date\'|\'Salutation\'|\'Title\'|\'FirstName\'|\'LastName\'' . "\n",
+            $content
+        );
+    }
+
+    private function getView(string $template): ViewInterface
+    {
+        $viewFactory = GeneralUtility::makeInstance(ViewFactoryInterface::class);
+        return $viewFactory->create(new ViewFactoryData(null, null, null, $template));
+    }
+}

Tests/Functional/ViewHelpers/Fixtures/CsvHeader.html

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+<cart:csvHeader />

Tests/Functional/ViewHelpers/Fixtures/CsvHeaderWithDifferentDelimAndQuote.html

@@ -0,0 +1 @@
+<cart:csvHeader delim="|" quote="'"/>