NodeTitleTest.php

<?php

namespace Drupal\Tests\node\Functional;

use Drupal\comment\Tests\CommentTestTrait;
use Drupal\Component\Utility\Html;

/**
 * Tests node title.
 *
 * @group node
 */
class NodeTitleTest extends NodeTestBase {
    use CommentTestTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'comment',
        'views',
        'block',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'classy';
    
    /**
     * A user with permission to bypass access content.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $this->drupalPlaceBlock('system_breadcrumb_block');
        $this->drupalPlaceBlock('page_title_block');
        $this->adminUser = $this->drupalCreateUser([
            'administer nodes',
            'create article content',
            'create page content',
            'post comments',
        ]);
        $this->drupalLogin($this->adminUser);
        $this->addDefaultCommentField('node', 'page');
    }
    
    /**
     * Creates one node and tests if the node title has the correct value.
     */
    public function testNodeTitle() {
        // Create "Basic page" content with title.
        // Add the node to the frontpage so we can test if teaser links are
        // clickable.
        $settings = [
            'title' => $this->randomMachineName(8),
            'promote' => 1,
        ];
        $node = $this->drupalCreateNode($settings);
        // Test <title> tag.
        $this->drupalGet('node/' . $node->id());
        $xpath = '//title';
        $this->assertEqual($this->xpath($xpath)[0]
            ->getText(), $node->label() . ' | Drupal', 'Page title is equal to node title.', 'Node');
        // Test breadcrumb in comment preview.
        $this->drupalGet('comment/reply/node/' . $node->id() . '/comment');
        $xpath = '//nav[@class="breadcrumb"]/ol/li[last()]/a';
        $this->assertEqual($this->xpath($xpath)[0]
            ->getText(), $node->label(), 'Node breadcrumb is equal to node title.', 'Node');
        // Test node title in comment preview.
        $this->assertEqual($this->xpath('//article[contains(concat(" ", normalize-space(@class), " "), :node-class)]/h2/a/span', [
            ':node-class' => ' node--type-' . $node->bundle() . ' ',
        ])[0]
            ->getText(), $node->label(), 'Node preview title is equal to node title.', 'Node');
        // Test node title is clickable on teaser list (/node).
        $this->drupalGet('node');
        $this->clickLink($node->label());
        // Test edge case where node title is set to 0.
        $settings = [
            'title' => 0,
        ];
        $node = $this->drupalCreateNode($settings);
        // Test that 0 appears as <title>.
        $this->drupalGet('node/' . $node->id());
        $this->assertTitle('0 | Drupal');
        // Test that 0 appears in the template <h1>.
        $xpath = '//h1';
        $this->assertSame('0', $this->xpath($xpath)[0]
            ->getText(), 'Node title is displayed as 0.');
        // Test edge case where node title contains special characters.
        $edge_case_title = 'article\'s "title".';
        $settings = [
            'title' => $edge_case_title,
        ];
        $node = $this->drupalCreateNode($settings);
        // Test that the title appears as <title>. The title will be escaped on the
        // the page.
        $edge_case_title_escaped = Html::escape($edge_case_title);
        $this->drupalGet('node/' . $node->id());
        $this->assertRaw('<title>' . $edge_case_title_escaped . ' | Drupal</title>', 'Page title is equal to article\'s "title".', 'Node');
        // Test that the title appears as <title> when reloading the node page.
        $this->drupalGet('node/' . $node->id());
        $this->assertRaw('<title>' . $edge_case_title_escaped . ' | Drupal</title>', 'Page title is equal to article\'s "title".', 'Node');
    }

}