Find common elements between two arrays

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

#[test]
fn t2() {
    let start = std::time::Instant::now();
    let val = Solution::find_intersection_values(vec![4, 3, 2, 3, 1], vec![2, 2, 5, 2, 3, 6]);
    let expected = vec![3, 4];
    log_result!(val == expected, "t2", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t3() {
    let start = std::time::Instant::now();
    let val = Solution::find_intersection_values(vec![3, 4, 2, 3], vec![1, 5]);
    let expected = vec![0, 0];
    log_result!(val == expected, "t3", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t4() {
    let start = std::time::Instant::now();
    let val = Solution::find_intersection_values(vec![1, 1, 1], vec![1, 1]);
    let expected = vec![3, 2];
    log_result!(val == expected, "t4", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t5() {
    let start = std::time::Instant::now();
    let val = Solution::find_intersection_values(vec![5], vec![5]);
    let expected = vec![1, 1];
    log_result!(val == expected, "t5", start, &expected, &val);
    assert_eq!(val, expected);
}

#[test]
fn t6() {
    let start = std::time::Instant::now();
    let val = Solution::find_intersection_values(vec![5], vec![6]);
    let expected = vec![0, 0];
    log_result!(val == expected, "t6", start, &expected, &val);
    assert_eq!(val, expected);
}