Android in-app purchase testing

I want test my in-app purchase implementation. But I can not configure it.
My app has a beta version in Developer Console, there are Google+ Community and Google Group in Beta Testers and my account added both to Community and Group. I added android:debuggable="true" in Manifest but Billing system still wants my money.
What am I missing?

Solution

You have to add emails of testers into Google Play Console. There is field in the settings tab, looks like this:

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