So yesterday I created my first triggers in the galaxyeditor, and after feeling that everything was right, I went on to click the button to test my map. The Galaxyeditor only minimized, and nothing happened after that. I saved my map under Maps, and tried to test the map myself, but I couldn't find out how to host my map without publishing it...

Why wont the galaxy edit let me test my map?

Was SC2 already running? If it was then you should have it closed when testing maps.

Note: If SC2 was launched initially in test-mode (that is, from the editor), I strongly suggest you to never close this window since every time you'll press the test button, the load will be something like 300% faster.

Err yes, by SC2 I meant a regular instance of sc2.

sc2 normal game dosn't stack with sc2-test mode game.

-Firstly there has to be losing trigger for each player
-There has to be start location for each player
-There has to be 2 forces...
-Sc2 can't be running or it will cause a redundancy

These things are similar to sc1

Start Locations aren't required.