/**
  * Assert that after save block successful message appears.
  *
  * @param CheckoutAgreementIndex $agreementIndex
  * @return void
  */
 public function processAssert(CheckoutAgreementIndex $agreementIndex)
 {
     \PHPUnit_Framework_Assert::assertEquals(self::SUCCESS_SAVE_MESSAGE, $agreementIndex->getMessagesBlock()->getSuccessMessage(), 'Wrong success message is displayed.');
 }