fast-able 1.20.2

The world's martial arts are fast and unbreakable; 天下武功 唯快不破
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#[cfg(feature = "async")]
use fast_able::WaitGroup;
use std::time::Duration;
use tokio::time::sleep;

#[cfg(feature = "async")]
#[tokio::test]
async fn test_wg() {
    let wg = WaitGroup::new();
    let wg2 = wg.clone();
    tokio::spawn(async move {
        sleep(Duration::from_secs(1)).await;
        drop(wg2);
    });
    let wg2 = wg.clone();
    tokio::spawn(async move {
        sleep(Duration::from_secs(1)).await;
        drop(wg2);
    });
    wg.wait_async().await;
    println!("all done");
}