use points::Point;

#[test]
fn test_point_expressions() {
    // the origin point
    let p1: Point = Point::default();
    let p2 = Point::new(1.0, 3.0);
    let p3 = Point::new(1.5, 2.5);

    // distance from origin
    let distance = p2.euclidean_norm();
    assert_eq!(3.1622776601683795, distance);

    // execute a + b * 3 - c
    let result = p1 + p2 * 3.0 - p3;
    assert_eq!(Point::new(1.5, 6.5), result);

    // execute (a + b) - c
    let p1: Point = Point::default();
    let p2 = Point::new(1.0, 3.0);
    let p3 = Point::new(1.5, 2.5);
    let result = (p1 + p2) - p3;
    assert_eq!(Point::new(-0.5, 0.5), result);


    // execute (a + b) * 3 + (a - c)
    let p1: Point = Point::default();
    let p2 = Point::new(1.0, 3.0);
    let p3 = Point::new(1.5, 2.5);
    let result = (p1 + p2) * 3.0 + (p1 - p3);
    assert_eq!(Point::new(1.5, 6.5), result);
}