Test Mode

Testing out heroes, skills and items without any interuption (and gold problems) can be done in the lobbies. Just start a game without bots like you did for your first game, but this time, tick the button "activate cheats". Start the game.

Here you are again. Pick a hero and go into the game.
Now to those cheat commands that are meant to help you testing. You can enter them by using the chat, so press enter, fill in the command (for example: "-wtf" without the quotes) and press enter again. You will only need a little amount of codes to test out all the skills and items:
-wtf: removes cooldown on all skills and items-lvlup 10: will levelup your hero for 10 levels, use any number you like, max lvl is 25-gold 12345: will grant you 12345 gold, use any number you like, there is a maximum of gold you can possess (about 16,5k) so do not be surprise if you can't fill your pockets with millions
-createhero heroname: creates a hero. heroname is a bit tricky, most of the time it is the heroname itself, while spaces are converte to underscore: _ , so for example instead of "-createhero witch doctor" you would enter -createhero witch_doctor". Enter the learn tab if you want to find out hero names (press on the button on the very top left side to access the main menu while playing)
if you want to create the hero on enemy side, use: -createhero heroname enemy
-levelbots 10: will levelup all heroes except your picked hero to level 10, use a number between 1 and 25
-spawn_creeps: spawns creeps on lanes
-spawn_neutrals: spawns creeps in forest

Thats about it. Create the heroes you want to test, level them up, spawn some creeps to use the abilities on or just go and buy all items there are that offer special abilities. Turn off auto attack in options for testing ease.