/**
  * Assert that Widget success delete message is present
  *
  * @param WidgetInstanceIndex $widgetInstanceIndex
  * @return void
  */
 public function processAssert(WidgetInstanceIndex $widgetInstanceIndex)
 {
     $actualMessage = $widgetInstanceIndex->getMessagesBlock()->getSuccessMessage();
     \PHPUnit_Framework_Assert::assertEquals(self::DELETE_MESSAGE, $actualMessage, 'Wrong widget success delete message is displayed.');
 }