[Cypress] Add E2E tests for Klarna SDK payment flow through Klarna

Feature Description

Description:

This task involves adding a connector for the klarna functionality in Cypress.

Pre-requisites:

• Understanding of Klarna SDK payment flow
• Experience with Cypress E2E testing
• Knowledge of payment processing flows (authorize, capture, void, refund)
• Please follow the README for guidelines

Possible Implementation

Steps:

1. Add the Klarna connector .js files under the PaymentUtils directory: PaymentUtils Directory

2. • Add the Klarna test configuration file Klarna.js, following the format used in the Stripe.js connector.

3. In the Klarna connector config, map the test cases and statuses properly for klarna SDK flows. To do this, use the below dashboard credentials where Klarna should be configured, test the flows, and then assign the correct statuses.

URL: https://app.hyperswitch.io Username, Password: Please drop a comment requesting credentials. The Creds are only shared on request

Possible Implementation

Test Cases:

• Add test cases for Klarna pay-later payment method (payment_method: "pay_later", payment_method_type: "klarna")
• Include SDK flow (KlarnaSdk with token)

Test Scenarios to Include:

• Session creation flows
• Payment authorization for SDK flows
• Payment capture (manual and auto)
• Payment sync
• Payment void/cancel
• Refund (full and partial)

Note:

• Focus on pay_later payment method with Klarna payment_method_type
• Test cases for other payment methods should be skipped

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Have you spent some time checking if this feature request has been raised before?

• I checked and didn't find a similar issue

Have you read the Contributing Guidelines?

• I have read the Contributing Guidelines

Are you willing to submit a PR?

None