Number of ships in a rectangle

#[test]
fn t1() {
    let start = std::time::Instant::now();
    let sea = Sea { ships: vec![(1,1),(2,2),(3,3)] };
    let val = Solution::count_ships(&sea, vec![4,4], vec![0,0]);
    let expected = 3;
    log_result!(val == expected, "t1", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t2() {
    let start = std::time::Instant::now();
    let sea = Sea { ships: vec![(1,1)] };
    let val = Solution::count_ships(&sea, vec![1000,1000], vec![0,0]);
    let expected = 1;
    log_result!(val == expected, "t2", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t3() {
    let start = std::time::Instant::now();
    let sea = Sea { ships: vec![] };
    let val = Solution::count_ships(&sea, vec![1000,1000], vec![0,0]);
    let expected = 0;
    log_result!(val == expected, "t3", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t4() {
    let start = std::time::Instant::now();
    let sea = Sea { ships: vec![(0,0),(1000,1000)] };
    let val = Solution::count_ships(&sea, vec![1000,1000], vec![0,0]);
    let expected = 2;
    log_result!(val == expected, "t4", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t5() {
    let start = std::time::Instant::now();
    let sea = Sea { ships: vec![(5,5),(5,6),(6,5),(6,6)] };
    let val = Solution::count_ships(&sea, vec![10,10], vec![0,0]);
    let expected = 4;
    log_result!(val == expected, "t5", start, &expected, &val);
    assert_eq!(val, expected);
}