#[cfg(test)]
mod examples {
    use day51::asteroid_collision;

    #[test]
    fn example1() {
        let asteroids = &[5, 10, -5];
        let res = asteroid_collision(asteroids);
        assert_eq!(res, vec![5, 10]);
    }

    #[test]
    fn example2() {
        let asteroids = &[8, -8];
        let res = asteroid_collision(asteroids);
        assert_eq!(res, vec![]);
    }

    #[test]
    fn example3() {
        let asteroids = &[10, 2, -5];
        let res = asteroid_collision(asteroids);
        assert_eq!(res, vec![10]);
    }

    #[test]
    fn example4() {
        let asteroids = &[-2, -1, 1, 2];
        let res = asteroid_collision(asteroids);
        assert_eq!(res, vec![-2, -1, 1, 2]);
    }
}