MC-16375: Unable to pay with Braintree Paypal (Payment Action = Authorize and Capture) for Gift Card as Guest

- Added automated test script

Author: Lusine-Papyan

app/code/Magento/Paypal/Test/Mftf/ActionGroup/StorefrontPayPalPaymentActionGroup.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ /**
+  * Copyright © Magento, Inc. All rights reserved.
+  * See COPYING.txt for license details.
+  */
+-->
+<actionGroups xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+              xsi:noNamespaceSchemaLocation="urn:magento:mftf:Test/etc/actionGroupSchema.xsd">
+    <actionGroup name="LoginToPayPalPaymentAccount">
+        <arguments>
+            <argument name="userName" type="string" defaultValue="{{Payer.buyerEmail}}"/>
+            <argument name="password" type="string" defaultValue="{{Payer.buyerPassword}"/>
+        </arguments>
+        <fillField selector="{{PayPalPaymentSection.email}}" userInput="{{userName}}" stepKey="fillEmail"/>
+        <click selector="{{PayPalPaymentSection.nextButton}}" stepKey="clickNext"/>
+        <waitForElementVisible selector="{{PayPalPaymentSection.password}}" stepKey="waitForPasswordField"/>
+        <fillField selector="{{PayPalPaymentSection.password}}" userInput="{{password}}" stepKey="fillPassword"/>
+        <click selector="{{PayPalPaymentSection.loginBtn}}" stepKey="clickLogin"/>
+        <waitForPageLoad stepKey="waitForLoginPageLoad"/>
+        <click selector="{{PayPalPaymentSection.continueButton}}" stepKey="clickContinue"/>
+    </actionGroup>
+</actionGroups>

app/code/Magento/Paypal/Test/Mftf/Section/PayPalExpressCheckoutConfigSection.xml

@@ -45,6 +45,9 @@
         <element name="color" type="text" selector=".paypal-button-color-{{color}}" parameterized="true"/>
     </section>
     <section name="CheckoutPaymentSection">
+        <element name="email" type="input" selector="#checkout-customer-email"/>
+        <element name="payPalPaymentBraintree" type="radio" selector="#braintree_paypal"/>
+        <element name="payPalFrame" type="iframe" selector="//iframe[contains(@class, 'zoid-component-frame zoid-visible')]" timeout="5"/>
         <element name="PayPalPaymentRadio" type="radio" selector="input#paypal_express.radio" timeout="30"/>
         <element name="PayPalBtn" type="radio" selector=".paypal-button.paypal-button-number-0" timeout="30"/>
     </section>
@@ -58,5 +61,7 @@
         <element name="cartIcon" type="text" selector="#transactionCart"/>
         <element name="itemName" type="text" selector="//span[@title='{{productName}}']" parameterized="true"/>
         <element name="PayPalSubmitBtn" type="text" selector="//input[@type='submit']"/>
+        <element name="nextButton" type="button" selector="#btnNext"/>
+        <element name="continueButton" type="button" selector=".continueButton"/>
     </section>
-</sections>
+</sections>