I've created a game , somewhat like space invaders, and it looks pretty cool , very proud of what ive done. But I'm stuck on finding a way of unit testing the collision of 2 sprites and the collision between the borders and a sprite. If anyone could point me in the right direction or has any sample code of this happening that would be great!

I've created a game , somewhat like space invaders, and it looks pretty cool , very proud of what ive done. But I'm stuck on finding a way of unit testing the collision of 2 sprites and the collision between the borders and a sprite. If anyone could point me in the right direction or has any sample code of this happening that would be great!

I can also post all the code , if that would help .