Training/Testing attacks/defenses against your own clan members

I think a great new feature would be allowing attacks against your own clan members to test strategy and defenses. There would be no loot obtainable, no trophies obtainable and it would cost you normal troop rates and heroes/traps would have to regenerate and be reset at normal times/costs. This would allow for us to test new configs and new attack strategies at a cost to both the attacker and the defender so it's not a freebie and there is no gain in the game, only loss of resources, so you pay a price for it. It could be limited to one attack on an individual per period of time, say 10 days, so that you cannot continually test strategy or defense.