extern crate funnel;

use std::thread;
use funnel::Funnel;

#[test]
fn recv_from_threads() {
    let mut fun = Funnel::new();
    let writer1 = fun.add_receiver();
    let writer2 = fun.add_receiver();

    thread::spawn(move || {
        let _ = writer1.send(32).unwrap();
    });
    thread::spawn(move || {
        let _ = writer2.send(64).unwrap();
    });

    assert!(match fun.recv() {
        (Some(read_value), errors) => read_value == 32 && errors.len() == 0,
        _ => false,
    });
    assert!(match fun.recv() {
        (Some(read_value), errors) => read_value == 64 && errors.len() == 0,
        _ => false,
    });
}

#[test]
fn recv_from_multiple_writes() {
    let mut fun = Funnel::new();
    let writer1 = fun.add_receiver();
    let writer2 = fun.add_receiver();

    thread::spawn(move || {
        let _ = writer1.send(32).unwrap();
        let _ = writer1.send(33).unwrap();
    });
    thread::spawn(move || {
        let _ = writer2.send(64).unwrap();
        let _ = writer2.send(65).unwrap();
    });

    assert!(match fun.recv() {
        (Some(read_value), errors) => read_value == 32 && errors.len() == 0,
        _ => false,
    });
    assert!(match fun.recv() {
        (Some(read_value), errors) => read_value == 64 && errors.len() == 0,
        _ => false,
    });
    assert!(match fun.recv() {
        (Some(read_value), errors) => read_value == 33 && errors.len() == 0,
        _ => false,
    });
    assert!(match fun.recv() {
        (Some(read_value), errors) => read_value == 65 && errors.len() == 0,
        _ => false,
    });
}

#[test]
fn error_instead_of_out_of_bounds() {
    let mut fun: Funnel<i32> = Funnel::new();

    assert!(match fun.recv() {
        (None, errors) => errors.len() == 1 && errors[0].1 == 0, // no index
        _ => false,
    });
}