MC-13212: Apply Promo Code during Checkout for physical product

Author: mkovdrysh

app/code/Magento/Checkout/Test/Mftf/Test/StorefrontApplyPromoCodeDuringCheckoutTest.xml

@@ -63,7 +63,7 @@
         <dontSeeElement selector="{{DiscountSection.ApplyCodeBtn}}" stepKey="dontSeeApplyButton"/>
 
         <!-- Cancel coupon button is appeared -->
-        <seeElement selector="{{DiscountSection.cancelCouponBtn}}" stepKey="seeCancelCouponButton"/>
+        <seeElement selector="{{DiscountSection.CancelCouponBtn}}" stepKey="seeCancelCouponButton"/>
 
         <!-- Order summary contains information about applied code -->
         <seeElement selector="{{CheckoutPaymentSection.discount}}" stepKey="seeDiscountCouponInSummaryBlock"/>

app/code/Magento/SalesRule/Test/Mftf/Section/DiscountSection.xml

@@ -13,7 +13,7 @@
         <element name="DiscountInput" type="input" selector="#discount-code"/>
         <element name="ApplyCodeBtn" type="button" selector="//span[text()='Apply Discount']"/>
         <element name="CancelCoupon" type="button" selector="//button[@value='Cancel Coupon']"/>
-        <element name="DiscountVerificationMsg" type="button" selector="//div[contains(@class, 'discount-code _active')]//div[@data-role='checkout-messages']/div/div"/>
-        <element name="cancelCouponBtn" type="button" selector="#discount-form .action-cancel"/>
+        <element name="DiscountVerificationMsg" type="button" selector=".message-success div"/>
+        <element name="CancelCouponBtn" type="button" selector="#discount-form .action-cancel"/>
     </section>
 </sections>