spaceShip.moveIndividual(spaceShip.getPositionX() + 10, spaceShip.getPositionY());
Assert.assertTrue(spaceShip.getPositionX() == 540); // reached maximum right movement, the ship position doesn't change
spaceShip.decreaseLives();
spaceShip.decreaseLives();
Assert.assertTrue(spaceShip.getLives() == 1);
spaceShip.increaseLives();
Assert.assertTrue(spaceShip.getLives() == 2);
spaceShip.decreaseLives();
//Testing collisions AlienShot -> Ship and Shot -> Alien
model.getList().add(new AlienShot(spaceShip.getPositionX(), spaceShip.getPositionY()));