/**
  * Tests the functionality of test actions.
  */
 public function testOperations()
 {
     // Test that actions can be discovered.
     $definitions = $this->actionManager->getDefinitions();
     $this->assertTrue(count($definitions) > 1, 'Action definitions are found.');
     $this->assertTrue(!empty($definitions['action_test_no_type']), 'The test action is among the definitions found.');
     $definition = $this->actionManager->getDefinition('action_test_no_type');
     $this->assertTrue(!empty($definition), 'The test action definition is found.');
     $definitions = $this->actionManager->getDefinitionsByType('user');
     $this->assertTrue(empty($definitions['action_test_no_type']), 'An action with no type is not found.');
     // Create an instance of the 'save entity' action.
     $action = $this->actionManager->createInstance('action_test_save_entity');
     $this->assertTrue($action instanceof ActionInterface, 'The action implements the correct interface.');
     // Create a new unsaved user.
     $name = $this->randomMachineName();
     $user_storage = $this->container->get('entity.manager')->getStorage('user');
     $account = $user_storage->create(array('name' => $name, 'bundle' => 'user'));
     $loaded_accounts = $user_storage->loadMultiple();
     $this->assertEqual(count($loaded_accounts), 0);
     // Execute the 'save entity' action.
     $action->execute($account);
     $loaded_accounts = $user_storage->loadMultiple();
     $this->assertEqual(count($loaded_accounts), 1);
     $account = reset($loaded_accounts);
     $this->assertEqual($name, $account->label());
 }