pub module struct_test;

struct Point {
    i32 x,
    i32 y,
}

pub void test_struct_create_access() {
    let p = Point {
        x: 10,
        y: 20,
    };
    assert_eq!(p.x, 10);
    assert_eq!(p.y, 20);
}

pub void test_struct_mut_field() {
    let mut p = Point {
        x: 1,
        y: 2,
    };
    p.x = 100;
    assert_eq!(p.x, 100);
}

pub void test_struct_destructure() {
    let p = Point {
        x: 3,
        y: 4,
    };
    let Point {x, y} = p;
    assert_eq!(x, 3);
    assert_eq!(y, 4);
}

struct Line {
    Point start,
    Point end,
}

pub void test_struct_nested() {
    let l = Line {
        start: Point {
            x: 0,
            y: 0,
        },
        end: Point {
            x: 5,
            y: 10,
        },
    };
    assert_eq!(l.start.x, 0);
    assert_eq!(l.end.y, 10);
}

pub void run_tests() {
    test_struct_create_access();
    test_struct_mut_field();
    test_struct_destructure();
    test_struct_nested();
}