use super::*;
use types::badge::Badge;
use types::generation::Generation;
use types::id::{IrqId, NotificationId};

fn route(n: u16) -> IrqRoute {
    IrqRoute {
        notification: NotificationId::from_raw(n),
        generation: Generation::initial(),
        badge: Badge::new(1 << n),
        owner: types::id::ProcessId::from_raw(0),
    }
}

#[test]
fn new_table_routes_nothing() {
    let t = IrqRoutingTable::new();
    assert_eq!(t.route(IrqId::from_raw(10)), None);
}

#[test]
fn set_then_route() {
    let mut t = IrqRoutingTable::new();
    assert!(t.set(IrqId::from_raw(10), route(3)));
    assert_eq!(t.route(IrqId::from_raw(10)), Some(route(3)));
}

#[test]
fn set_replaces_and_clear_removes() {
    let mut t = IrqRoutingTable::new();
    t.set(IrqId::from_raw(10), route(3));
    t.set(IrqId::from_raw(10), route(4));
    assert_eq!(t.route(IrqId::from_raw(10)), Some(route(4)));
    t.clear(IrqId::from_raw(10));
    assert_eq!(t.route(IrqId::from_raw(10)), None);
}

#[test]
fn lines_beyond_the_table_are_rejected_without_panicking() {
    let mut t = IrqRoutingTable::new();
    assert!(!t.set(IrqId::from_raw(1000), route(1)));
    assert_eq!(t.route(IrqId::from_raw(1000)), None);
    t.clear(IrqId::from_raw(1000));
}