class BlockContentDeletionTest

class BlockContentDeletionTest extends KernelTestBase {
  use BlockCreationTrait;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'block',
    'block_content',
    'system',
    'user',
  ];
  
  /**
   * {@inheritdoc}
   */
  public function setUp() : void {
    parent::setUp();
    $this->installEntitySchema('user');
    $this->installEntitySchema('block_content');
  }
  
  /**
   * Tests deleting a block_content updates the discovered block plugin.
   */
  public function testDeletingBlockContentShouldClearPluginCache() {
    // Create a block content type.
    $block_content_type = BlockContentType::create([
      'id' => 'spiffy',
      'label' => 'Mucho spiffy',
      'description' => "Provides a block type that increases your site's spiffiness by upto 11%",
    ]);
    $block_content_type->save();
    // And a block content entity.
    $block_content = BlockContent::create([
      'info' => 'Spiffy prototype',
      'type' => 'spiffy',
    ]);
    $block_content->save();
    // Make sure the block content provides a derivative block plugin in the
    // block repository.
    /** @var \Drupal\Core\Block\BlockManagerInterface $block_manager */
    $block_manager = $this->container
      ->get('plugin.manager.block');
    $plugin_id = 'block_content' . PluginBase::DERIVATIVE_SEPARATOR . $block_content->uuid();
    $this->assertTrue($block_manager->hasDefinition($plugin_id));
    // Now delete the block content entity.
    $block_content->delete();
    // The plugin should no longer exist.
    $this->assertFalse($block_manager->hasDefinition($plugin_id));
    // Create another block content entity.
    $block_content = BlockContent::create([
      'info' => 'Spiffy prototype',
      'type' => 'spiffy',
    ]);
    $block_content->save();
    $plugin_id = 'block_content' . PluginBase::DERIVATIVE_SEPARATOR . $block_content->uuid();
    $block = $this->placeBlock($plugin_id, [
      'region' => 'content',
    ]);
    // Delete it via storage.
    $storage = $this->container
      ->get('entity_type.manager')
      ->getStorage('block_content');
    $storage->delete([
      $block_content,
    ]);
    // The plugin should no longer exist.
    $this->assertFalse($block_manager->hasDefinition($plugin_id));
    $this->assertNull($this->container
      ->get('entity_type.manager')
      ->getStorage('block')
      ->loadUnchanged($block->id()));
  }

}