Is there a BattleBorn Character Testing Ground/Practice Room?

Is there a BattleBorn Character Testing Ground/Practice Room?
I’ve unlocked almost all of the characters and only played a few of the characters since I don’t know what they do, and when I do try out a new char, I find myself completely lost/baffled as to what their abilities do and how they play or end up just not liking them.

Is there a testing/practice room to try our new characters in a safe environment to try out characters to see how they play, and if not any chance you could implement it?
Like a small room with test dummies or moving bots to shoot at or try your abilities and builds on to see how a char plays and how you like to play them?

There are no training dummies per se, but you can start up a private story game (the PvE campaign) and practice against the various npc’s there to get a feel for a character’s abilities.

Alternatively, you could simply run through story missions in their entirety (with or without other players) to get a more complete picture of how a character plays.

It doesn’t get you exp (which I hope they change cuz that restriction is a little silly) but you can also test yourself against bots in a private PVP match. That’s a good way to get at least a taste of a character