https://bitcoinmagazine.com/technical/universal-bitcoin-payment-system-onebit-enters-alpha-testing
In April, Bitcoin Magazinereported that startup OneBit was developing a Bitcoin wallet app that lets users pay at any store with
bitcoin paymentalpha testinguniversalsystementers
https://docs.payram.com/onboarding-guide/testing-payment-links
In this section, you’ll learn how to accept payments from customers using PayRam by creating and sharing a payment link.
payment linkstesting
https://www.ledgerinsights.com/bank-of-thailand-opens-dlt-programmable-payment-testing-in-sandbox/
The Bank of Thailand plans to run trials for programmable payments using DLT as part of its regulatory sandbox
payment testingbankthailandopensdlt
https://stripe.com/en-my/resources/more/payment-gateway-testing-a-how-to-guide-for-businesses
Here's a guide to payment gateway testing, including the types of testing and payment gateway test cases.
payment gatewayguidetestingstripe