setupNullCacheabilityMetadataValidation example

$this->argumentResolver = $this->createMock('Symfony\Component\HttpKernel\Controller\ArgumentResolverInterface');
    $this->request = new Request();
    $this->routeProvider = $this->createMock('Drupal\Core\Routing\RouteProviderInterface');
    $this->pluginDiscovery = $this->createMock('Drupal\Component\Plugin\Discovery\DiscoveryInterface');
    $this->factory = $this->createMock('Drupal\Component\Plugin\Factory\FactoryInterface');
    $this->cacheBackend = $this->createMock('Drupal\Core\Cache\CacheBackendInterface');
    $this->accessManager = $this->createMock('Drupal\Core\Access\AccessManagerInterface');
    $this->routeMatch = $this->createMock('Drupal\Core\Routing\RouteMatchInterface');
    $this->account = $this->createMock('Drupal\Core\Session\AccountInterface');

    $this->setupLocalTaskManager();
    $this->setupNullCacheabilityMetadataValidation();
  }

  /** * Tests the getLocalTasksForRoute method. * * @see \Drupal\system\Plugin\Type\MenuLocalTaskManager::getLocalTasksForRoute() */
  public function testGetLocalTasksForRouteSingleLevelTitle() {
    $definitions = $this->getLocalTaskFixtures();

    $this->pluginDiscovery->expects($this->once())