use pert::pert;
use rand::Rng;

#[test]
fn test_task_init() {
    let task: pert::Task = pert::Task::new(1, 0, 2, 0);
    assert_eq!(task.id, 1);
    assert_eq!(task.duration, 2);
}

#[test]
fn test_task_duration() {
    let duration: u32 = rand::thread_rng().gen_range(1..10);
    let task: pert::Task = pert::Task::new(1, 0, duration, 0);
    assert_eq!(task.id, 1);
    assert_eq!(task.duration, duration);
}

#[test]
fn test_task_default() {
    let task: pert::Task = pert::Task::new(1, 0, 2, 0);
    assert_eq!(task.id, 1);
    assert_eq!(task.duration, 2);
    assert_eq!(task.parent, 0);
}

#[test]
fn test_link_init() {
    let link: pert::Link = pert::Link::new(1, 2);
    assert_eq!(link.source, 1);
    assert_eq!(link.target, 2);
}

#[test]
fn test_link_from_tasks() {
    let task_1: pert::Task = pert::Task::new(1, 0, 2, 0);
    let task_2: pert::Task = pert::Task::new(2, 0, 7, 0);

    let link: pert::Link = pert::Link::new(task_1.id, task_2.id);
    assert_eq!(link.source, task_1.id);
    assert_eq!(link.target, task_2.id);
}