New Option to Test your base(s)

I would like to see an option to test your own village base/war base. It's sometimes hard to judge if the distance between walls and buildings is enough where archers or wizards can attack buildings while still being behind the walls... you get my point. I have seen youtube videos of more prestigious players having the ability to do this in a sandbox mode. I would like to see a version of that reach the everyday Clash of Clans player. Giving them an arsenal of units to that of what their barracks and army camps can train and hold would make the most sense to me, but completely opening it up wouldn't be a bad option either. Adding this option would help with placing traps effectively, testing different defensive buildings against different kinds of units, and overall setup. For example, it's hard to know exactly how effective a Level 8 Archer Tower with 48 dps is against a level two dragon. Adding this option would really help the Clash of Clans player develop even more in-depth strategies before they are raided and lose their resources and trophies.
Thanks!
-jmauch11

Testing bases will never happen. There are way too many exploits.

I am not sure this isn't ruled out. But either way, if you keep at it over time you will start to be able to figure out all that stuff in your head with no need to run a simulation.

Watching all those youtube videos is an excellent way to train the eye so that's a good thing to keep doing.