indexAction() public méthode

public indexAction ( )
 public function testIndexActionReturnsViewModel()
 {
     $controller = new IndexController();
     $this->assertInstanceOf(ViewModel::class, $controller->indexAction());
 }
 public function testIndexAction()
 {
     $viewModel = $this->IndexController->indexAction();
     $this->assertInstanceof('Zend\\View\\Model\\ViewModel', $viewModel);
 }
 /**
  * @covers Application\Controller\IndexController::indexAction
  */
 public function testIndexActionReturnsViewModel()
 {
     $this->assertInstanceOf('Zend\\View\\Model\\ViewModel', $this->indexController->indexAction());
 }