Is there a way to test out weapons and armor in game? Before you get them? Like if I only have T2 troops. But I wanted to know if I want to aim for any T5-7 Troop gear. Can I test out that gear that belongs to said T5-7 troops. Even though I am only at T2 troops?

Also, if this is possible. It would help us test out gear. So we can give feed back about them to the Devs.

Maybe have a Coliseum with 3 modes.
1) Just you VS 1 AI General.
2) You plus several other AI Generals VS equal number of Generals.
3) You plus your troops VS 1 AI General plus his troops.

There should be options to edit Your teams equipment and the other teams equipment. As well as Pick the tier of the troops and the hardness of the AI. Also, you should get no rewards for doing this. It's just to test out what you want or have, Allowing you to test Gear, Troops, Tactics, Battle Sceneries, and Custom action. Also there should be the option to set certain things to randomly within certain parameters.

What are peoples thoughts about this?

That sounds good, but is not possible at the moment.
You must have the troops to unlock their weapons.
Maybe in the future it will change, but yeah nice thoughts.