//Testing collisions AlienShot -> Ship and Shot -> Alien
model.getList().add(new AlienShot(spaceShip.getPositionX(), spaceShip.getPositionY()));
ShipShot shot = new ShipShot(10, 50);
model.getList().add(shot);
shot.collideWith(model.getList());
spaceShip.collideWith(model.getList());
Assert.assertTrue(spaceShip.isDead());
Assert.assertTrue(shot.isDead());
int individualsKilled = 0;
for (Individual ind : model.getList()) {
if (ind.isDead()) {