Why Test Payment Gateway?
If we buy something from an offline market, generally cash or credit/debit cards are used during checkout to buy items by swiping the credit/debit cards through the machine. The point of sale testing determines whether the payment processing should be approved or not when it is done through credit/debit cards. Similarly, while purchasing from an online e-commerce store a system is needed that authorizes the processing of the payment and decides immediately whether to accept or decline it.
Customers want a smooth transaction process. It will be beneficial for the customers if after clicking the payment option they instantly can know whether their payment is approved or declined so that it saves time. The e-commerce company wants the whole payment process is work properly and for the customers to be satisfied while making the online payment. This is the reason testing of payment gateway is necessary as if any problem arises while testing, the problem should be solved instantly, and customers, as well as the company of the e-commerce website, get a smooth and secure payment process.