FieldStorageConfigAccessControlHandler example

$entityType
      ->expects($this->any())
      ->method('getConfigPrefix')
      ->willReturn('node');

    $this->moduleHandler = $this->createMock(ModuleHandlerInterface::class);
    $this->moduleHandler
      ->expects($this->any())
      ->method('invokeAll')
      ->willReturn([]);

    $storage_access_control_handler = new FieldStorageConfigAccessControlHandler($storageType);
    $storage_access_control_handler->setModuleHandler($this->moduleHandler);

    $entity_type_manager = $this->createMock(EntityTypeManagerInterface::class);
    $entity_type_manager
      ->expects($this->any())
      ->method('getDefinition')
      ->willReturnMap([
        ['field_storage_config', TRUE, $storageType],
        ['node', TRUE, $entityType],
      ]);
    $entity_type_manager