AnnouncementsCacheTest.php

<?php

declare (strict_types=1);
namespace Drupal\Tests\announcements_feed\Functional;

use Drupal\Core\Url;
use Drupal\Tests\BrowserTestBase;
use Drupal\dynamic_page_cache\EventSubscriber\DynamicPageCacheSubscriber;

/**
 * Defines a class for testing pages are still cacheable with dynamic page cache.
 *
 * @group announcements_feed
 */
final class AnnouncementsCacheTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'announcements_feed',
        'dynamic_page_cache',
        'toolbar',
    ];
    
    /**
     * Tests dynamic page cache.
     */
    public function testDynamicPageCache() : void {
        $this->drupalLogin($this->drupalCreateUser([
            'access toolbar',
            'access announcements',
        ]));
        // Front-page is visited right after login.
        $this->assertSession()
            ->responseHeaderEquals(DynamicPageCacheSubscriber::HEADER, 'MISS');
        // Reload the page, it should be cached now.
        $this->drupalGet(Url::fromRoute('<front>'));
        $this->assertSession()
            ->elementExists('css', '[data-drupal-announce-trigger]');
        $this->assertSession()
            ->responseHeaderEquals(DynamicPageCacheSubscriber::HEADER, 'HIT');
    }

}