Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\FunctionalTests\Breadcrumb;
Chris@0: 
Chris@18: use Drupal\Tests\block\Traits\BlockCreationTrait;
Chris@0: use Drupal\Tests\BrowserTestBase;
Chris@0: 
Chris@0: /**
Chris@0:  * Tests the breadcrumb of 404 pages.
Chris@0:  *
Chris@0:  * @group breadcrumb
Chris@0:  */
Chris@0: class Breadcrumb404Test extends BrowserTestBase {
Chris@0: 
Chris@0:   use BlockCreationTrait;
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public static $modules = ['system', 'block'];
Chris@0: 
Chris@0:   /**
Chris@0:    * Tests that different 404s don't create unnecessary cache entries.
Chris@0:    */
Chris@0:   public function testBreadcrumbOn404Pages() {
Chris@0:     $this->placeBlock('system_breadcrumb_block', ['id' => 'breadcrumb']);
Chris@0: 
Chris@0:     // Prime the cache first.
Chris@0:     $this->drupalGet('/not-found-1');
Chris@0:     $base_count = count($this->getBreadcrumbCacheEntries());
Chris@0: 
Chris@0:     $this->drupalGet('/not-found-2');
Chris@0:     $next_count = count($this->getBreadcrumbCacheEntries());
Chris@0:     $this->assertEquals($base_count, $next_count);
Chris@0: 
Chris@0:     $this->drupalGet('/not-found-3');
Chris@0:     $next_count = count($this->getBreadcrumbCacheEntries());
Chris@0:     $this->assertEquals($base_count, $next_count);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Gets the breadcrumb cache entries.
Chris@0:    *
Chris@0:    * @return array
Chris@0:    *   The breadcrumb cache entries.
Chris@0:    */
Chris@0:   protected function getBreadcrumbCacheEntries() {
Chris@0:     $database = \Drupal::database();
Chris@0:     $cache_entries = $database->select('cache_render')
Chris@0:       ->fields('cache_render')
Chris@0:       ->condition('cid', $database->escapeLike('entity_view:block:breadcrumb') . '%', 'LIKE')
Chris@0:       ->execute()
Chris@0:       ->fetchAllAssoc('cid');
Chris@0:     return $cache_entries;
Chris@0:   }
Chris@0: 
Chris@0: }