class EntityBundleListCacheTest

class EntityBundleListCacheTest extends BrowserTestBase {
  use AssertPageCacheContextsAndTagsTrait;
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'cache_test',
    'entity_test',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'starterkit_theme';
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    EntityTestBundle::create([
      'id' => 'bundle_a',
      'label' => 'Bundle A',
    ])->save();
    EntityTestBundle::create([
      'id' => 'bundle_b',
      'label' => 'Bundle B',
    ])->save();
  }
  
  /**
   * Tests that tags are invalidated when an entity with that bundle changes.
   */
  public function testBundleListingCache() {
    // Access to lists of test entities with each bundle.
    $bundle_a_url = Url::fromRoute('cache_test_list.bundle_tags', [
      'entity_type_id' => 'entity_test_with_bundle',
      'bundle' => 'bundle_a',
    ]);
    $bundle_b_url = Url::fromRoute('cache_test_list.bundle_tags', [
      'entity_type_id' => 'entity_test_with_bundle',
      'bundle' => 'bundle_b',
    ]);
    $this->drupalGet($bundle_a_url);
    $this->assertSession()
      ->responseHeaderEquals('X-Drupal-Cache', 'MISS');
    $this->assertCacheTags([
      'rendered',
      'entity_test_with_bundle_list:bundle_a',
    ]);
    $this->drupalGet($bundle_a_url);
    $this->assertSession()
      ->responseHeaderEquals('X-Drupal-Cache', 'HIT');
    $this->assertCacheTags([
      'rendered',
      'entity_test_with_bundle_list:bundle_a',
    ]);
    $this->drupalGet($bundle_b_url);
    $this->assertSession()
      ->responseHeaderEquals('X-Drupal-Cache', 'MISS');
    $this->assertCacheTags([
      'rendered',
      'entity_test_with_bundle_list:bundle_b',
    ]);
    $this->drupalGet($bundle_b_url);
    $this->assertSession()
      ->responseHeaderEquals('X-Drupal-Cache', 'HIT');
    $entity1 = EntityTestWithBundle::create([
      'type' => 'bundle_a',
      'name' => 'entity1',
    ]);
    $entity1->save();
    // Check that tags are invalidated after creating an entity of the current
    // bundle.
    $this->drupalGet($bundle_a_url);
    $this->assertSession()
      ->responseHeaderEquals('X-Drupal-Cache', 'MISS');
    $this->drupalGet($bundle_a_url);
    $this->assertSession()
      ->responseHeaderEquals('X-Drupal-Cache', 'HIT');
    // Check that tags are not invalidated after creating an entity of a
    // different bundle than the current in the request.
    $this->drupalGet($bundle_b_url);
    $this->assertSession()
      ->responseHeaderEquals('X-Drupal-Cache', 'HIT');
  }

}