The developers "test button"

Dear clash of clans creators after awhile of playing coc one 1 hour I was re designing my base when I wondered why there isn't an option to test out if your base is strong enough by being able to attack it yourself and see how well it fend off your troops this is just and ideas so there could he been others like this one before. Plz I want this option in game and I also think other players would too;)

You can always go to a clan and start a friendly challenge for members to attack your base.

What if nobody accepts my request or if everyone is either a too high or low lvl?

This would make it too easy to practice on your opponent's war base.