To test commission assignment without doing a real payment you will need to manually add a payment.
To add a payment manually, go to ~wmtsystemurl~/admin/members in the members area and click on the billing history icon for the member you want to add commission for.
In the popup click the Add Payment link.
Enter a payment amount and date. For Type and Transaction ID you can enter anything or leave blank as it doesn't affect test results.
To apply the payment visit: ~wmtsystemurl~/admin/applyaffiliatepayments.php
When a payment is made, an Member receives a commission set by the admin. They can see the amounts earned in their members area.
The admin is able to see their balance and has reports for making payouts.
There is also the ability to export csv files for mass payment through Payza and PayPal.