Sylius\Behat\Page\Shop\Checkout\CompletePageInterface::hasPromotion PHP Method

    public function hasPromotion($promotionName);

 /**
  * @Then :promotionName should be applied to my order
  */
 public function shouldBeAppliedToMyOrder($promotionName)
 {
     Assert::true($this->completePage->hasPromotion($promotionName), sprintf('The promotion %s should appear on the page, but it does not.', $promotionName));
 }