Expanded class hierarchy of MockBlockManager in Drupal 9
- class \Drupal\Component\Plugin\PluginManagerBase implements PluginManagerInterface uses DiscoveryTrait
- class \Drupal\Core\Plugin\DefaultPluginManager implements CachedDiscoveryInterface, PluginManagerInterface, CacheableDependencyInterface uses DiscoveryCachedTrait, UseCacheBackendTrait
- class \Drupal\plugin_test\Plugin\MockBlockManager
- class \Drupal\plugin_test\Plugin\TestPluginManager
- class \Drupal\Tests\Component\Plugin\StubFallbackPluginManager implements FallbackPluginManagerInterface
- class \Drupal\Tests\Component\Plugin\StubPluginManagerBaseWithMapper
- class \Drupal\Tests\Core\Plugin\TestFilteredPluginManager implements FilteredPluginManagerInterface uses FilteredPluginManagerTrait