OEL-2002: Add TwigExtension test.

modules/oe_bootstrap_theme_helper/tests/src/Kernel/TwigExtensionTest.php

@@ -0,0 +1,156 @@
+<?php
+
+declare(strict_types = 1);
+
+namespace Drupal\Tests\oe_bootstrap_theme_helper\Kernel;
+
+use Drupal\Core\Template\Attribute;
+use Drupal\Core\Url;
+use Drupal\Tests\oe_bootstrap_theme\Kernel\AbstractKernelTestBase;
+use Symfony\Component\DomCrawler\Crawler;
+
+/**
+ * Test those Twig extensions that require Drupal to be bootstrapped.
+ */
+class TwigExtensionTest extends AbstractKernelTestBase {
+
+  /**
+   * Test bcl_link function.
+   */
+  public function testBclLinkFunction(): void {
+    $items = $this->bclLinkDataProvider();
+
+    foreach ($items as $item) {
+      [$expected, $data] = $item;
+      $elements = [
+        '#type' => 'inline_template',
+        '#template' => '{{ bcl_link(label, path, attributes) }}',
+        '#context' => [
+          'label' => $data['label'],
+          'path' => $data['path'],
+          'attributes' => new Attribute($data['attributes'] ?? []),
+        ],
+      ];
+
+      $output = $this->renderRoot($elements);
+      $crawler = new Crawler($output);
+      $link = $crawler->filter('a');
+
+      $this->assertSame($expected['href'], $link->attr('href'));
+      $this->assertSame($expected['text'], $link->html());
+    }
+  }
+
+  /**
+   * Data provider for bclLinkFunction.
+   *
+   * @return array
+   *   An array of test data arrays with assertions.
+   */
+  public function bclLinkDataProvider(): array {
+    return [
+      'string_path_to_front' => [
+        [
+          'href' => '/',
+          'text' => 'My link',
+        ],
+        [
+          'path' => '/',
+          'label' => 'My link',
+        ],
+      ],
+      'string_path_front_with_hash' => [
+        [
+          'href' => '/user/login#kitty',
+          'text' => 'Miau',
+        ],
+        [
+          'path' => '/#kitty',
+          'label' => 'Miau',
+        ],
+      ],
+      'string_path_current_url_with_hash' => [
+        [
+          'href' => '/user/login#kitty',
+          'text' => 'Miau',
+        ],
+        [
+          'path' => '#kitty',
+          'label' => 'Miau',
+        ],
+      ],
+      'just_hash' => [
+        [
+          // Is this right ?
+          'href' => '/user/login',
+          'text' => 'hash',
+        ],
+        [
+          'path' => '#',
+          'label' => 'hash',
+        ],
+      ],
+      'string_path_current_url_with_parameters' => [
+        [
+          'href' => '/user/login?foo=baz',
+          'text' => 'My link',
+        ],
+        [
+          'path' => '?foo=baz',
+          'label' => 'My link',
+        ],
+      ],
+      'string_path_internal' => [
+        [
+          'href' => '/some-path',
+          'text' => 'Some link',
+        ],
+        [
+          'path' => '/some-path',
+          'label' => 'Some link',
+        ],
+      ],
+      'label_with_safe_markup' => [
+        [
+          'href' => '/',
+          'text' => 'This is <em>markup</em>!',
+        ],
+        [
+          'path' => '/',
+          'label' => ['#markup' => 'This is <em>markup</em>!'],
+        ],
+      ],
+      'label_with_unsafe_markup' => [
+        [
+          'href' => '/',
+          'text' => 'This is &lt;script type="text/javascript"&gt;unsafe&lt;/script&gt; &lt;em&gt;markup&lt;/em&gt;!',
+        ],
+        [
+          'path' => '/',
+          'label' => 'This is <script type="text/javascript">unsafe</script> <em>markup</em>!',
+        ],
+      ],
+      'url_object' => [
+        [
+          'href' => '/node/add',
+          'text' => 'Url object link',
+        ],
+        [
+          'path' => Url::fromUserInput('/node/add'),
+          'label' => 'Url object link',
+        ],
+      ],
+      'url_object_absolute' => [
+        [
+          'href' => 'http://localhost/here',
+          'text' => 'Absolute url link',
+        ],
+        [
+          'path' => Url::fromUri('base:here', ['absolute' => TRUE]),
+          'label' => 'Absolute url link',
+        ],
+      ],
+    ];
+  }
+
+}