rust.eventbus/tests/basic_usage.rs

#[macro_use]
extern crate eventbus;

use eventbus::{Event, EventBus};

struct MyEvent {
    i: i32
}

impl Event for MyEvent {
}

fn add_handler(e: &mut MyEvent) {
    /* adds 1 */
    e.i += 1;
}

fn no_handler(e: &mut MyEvent) {
    /* does nothing */
    e.i += 0;
}

#[test]
fn test_basic_usage() {
    let event_bus = EventBus::new();
    //let handler_id = event_bus.register(add_handler, 0);
    register_hook!(&event_bus, 0, MyEvent, add_handler);
    let mut event = MyEvent { i: 3 };
    assert_eq!(event.i, 3);
    post_event!(&event_bus, MyEvent, &mut event);
    assert_eq!(event.i, 4);
    register_hook!(&event_bus, 1, MyEvent, no_handler);
    post_event!(&event_bus, MyEvent, &mut event);
    assert_eq!(event.i, 5);
    //event_bus.unregister(handler_id);
    post_event!(&event_bus, MyEvent, &mut event);
    //assert_eq!(event.i, 5);
}