Issue #3432632 by simohell, smustgrave, kostyashupenko, andypost: Collapsed nav-tabs status not exposed to screen reader

core/tests/Drupal/Nightwatch/Tests/Claro/claroPrimaryTabsTest.js

@@ -0,0 +1,51 @@
+// This test is a duplicate of oliveroPrimaryTabsTest.js tagged for claro
+const primaryTabsWrapper = '[data-drupal-nav-tabs]';
+const activeTab = '.tabs__tab.is-active';
+const inactiveTab = '.tabs__tab:not(.is-active)';
+const mobileToggle = `${activeTab} .tabs__trigger`;
+
+module.exports = {
+  '@tags': ['core', 'claro'],
+  before(browser) {
+    browser
+      .drupalInstall({
+        setupFile:
+          'core/tests/Drupal/TestSite/TestSiteClaroInstallTestScript.php',
+        installProfile: 'minimal',
+      })
+      .drupalCreateUser({
+        name: 'user',
+        password: '123',
+        permissions: ['administer nodes'],
+      })
+      .drupalLogin({ name: 'user', password: '123' });
+    browser.setWindowSize(1600, 800);
+  },
+  after(browser) {
+    browser.drupalUninstall();
+  },
+  'Verify desktop primary tab display': (browser) => {
+    browser
+      .drupalRelativeURL('/node/1')
+      .waitForElementVisible(primaryTabsWrapper)
+      .assert.visible(activeTab)
+      .assert.visible(inactiveTab)
+      .assert.not.visible(mobileToggle);
+  },
+  'Verify mobile tab display and click functionality': (browser) => {
+    browser
+      .setWindowSize(699, 800)
+      .drupalRelativeURL('/node/1')
+      .waitForElementVisible(primaryTabsWrapper)
+      .assert.visible(activeTab)
+      .assert.not.visible(inactiveTab)
+      .assert.visible(mobileToggle)
+      .assert.attributeEquals(mobileToggle, 'aria-expanded', 'false')
+      .click(mobileToggle)
+      .waitForElementVisible(inactiveTab)
+      .assert.attributeEquals(mobileToggle, 'aria-expanded', 'true')
+      .click(mobileToggle)
+      .waitForElementNotVisible(inactiveTab)
+      .assert.attributeEquals(mobileToggle, 'aria-expanded', 'false');
+  },
+};

core/tests/Drupal/TestSite/TestSiteClaroInstallTestScript.php

@@ -0,0 +1,70 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\TestSite;
+
+use Drupal\Core\Extension\ModuleInstallerInterface;
+use Drupal\Core\Extension\ThemeInstallerInterface;
+use Drupal\node\Entity\Node;
+use Drupal\comment\Entity\Comment;
+
+/**
+ * Setup file used by TestSiteInstallTestScript.
+ *
+ * @see \Drupal\Tests\Scripts\TestSiteApplicationTest
+ */
+class TestSiteClaroInstallTestScript implements TestSetupInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setup() {
+    // Install required module for the Olivero front page.
+    $module_installer = \Drupal::service('module_installer');
+    assert($module_installer instanceof ModuleInstallerInterface);
+    $module_installer->install(['olivero_test']);
+
+    // Install Claro instead of Olivero and set it as the default theme.
+    $theme_installer = \Drupal::service('theme_installer');
+    assert($theme_installer instanceof ThemeInstallerInterface);
+    $theme_installer->install(['claro'], TRUE);
+    $system_theme_config = \Drupal::configFactory()->getEditable('system.theme');
+    $system_theme_config->set('default', 'claro')->save();
+
+    // Create an article that will have no comments
+    $article_no_comments = Node::create(['type' => 'article']);
+    $article_no_comments->set('title', 'Article without comments');
+    // Enable comments
+    $article_no_comments->set('comment', 2);
+    $article_no_comments->save();
+
+    // Create an article that will have comments
+    $article_with_comments = Node::create(['type' => 'article']);
+    $article_with_comments->set('title', 'Article with comments');
+    // Enable comments
+    $article_with_comments->set('comment', 2);
+    $article_with_comments->save();
+
+    $values = [
+      // These values are for the entity that you're creating the comment for, not the comment itself.
+      'entity_type' => 'node',
+      'entity_id'   => 2,
+      'field_name'  => 'comment',
+      'uid' => 1,
+      // These values are for the comment itself.
+      'comment_type' => 'comment',
+      'subject' => 'A comment',
+      'comment_body' => 'Body of comment',
+      // Whether the comment is 'approved' or not.
+      'status' => 1,
+    ];
+    // Create comment entities out of our field values
+    $comment1 = Comment::create($values);
+    $comment1->save();
+
+    $comment2 = Comment::create($values);
+    $comment2->save();
+  }
+
+}

core/themes/claro/js/nav-tabs.js

@@ -13,6 +13,7 @@
 
     const openMenu = () => {
       $target.toggleClass('is-open');
+      $target.find('button').attr('aria-expanded', $target.hasClass('is-open'));
     };
 
     const toggleOrder = (reset) => {
@@ -54,9 +55,11 @@
         // the width of the parent container.
         const isHorizontal = $tab.attr('data-width') <= $tab.outerWidth();
         $tab.toggleClass('is-horizontal', isHorizontal);
+        $tab.find('button').attr('aria-expanded', null);
         toggleOrder(isHorizontal);
       } else {
         toggleOrder(false);
+        $tab.find('button').attr('aria-expanded', 'false');
       }
     };