def test_command(command):
model = GameModel()
model.acceptCommand(command)
assert len(model._commands) == 1
model.tickUpdate()
assert command.execute.call_count == 1
def test_call_collision(arcadeFactory, missile, basicEnemy):
model = GameModel()
model._factory = arcadeFactory
model._birds = [missile]
model._enemies = [basicEnemy]
model.tickUpdate()
assert basicEnemy.colision.call_count == 1
