how to cancel an in-app test purchase on android?

Question

Until june 20th 2016 i was able to cancel test purchases done in my app. Doing multiple in-app purchases (not consumable) from the same test account made it easy to develop

Answer 1

Didn't find a solution for this. My workaround is simply remove the current test user from the test users list, make a real purchase, then cancel it using the merchant console.