Rocket/core/lib/tests/launch-inspect.rs

use rocket::error::Error;
use rocket::fairing::AdHoc;

#[rocket::async_test]
async fn test_inspectable_launch_state() -> Result<(), Error> {
    let rocket = rocket::ignite()
        .attach(AdHoc::on_launch("Add State", |rocket| async {
            Ok(rocket.manage("Hi!"))
        }))
        ._ignite()
        .await?;

    let state = rocket.state::<&'static str>();
    assert_eq!(state, Some(&"Hi!"));
    Ok(())
}

#[rocket::async_test]
async fn test_inspectable_launch_state_in_liftoff() -> Result<(), Error> {
    let rocket = rocket::ignite()
        .attach(AdHoc::on_launch("Add State", |rocket| async {
            Ok(rocket.manage("Hi!"))
        }))
        .attach(AdHoc::on_launch("Inspect State", |rocket| async {
            let state = rocket.state::<&'static str>();
            assert_eq!(state, Some(&"Hi!"));
            Ok(rocket)
        }))
        .attach(AdHoc::on_liftoff("Inspect State", |rocket| Box::pin(async move {
            let state = rocket.state::<&'static str>();
            assert_eq!(state, Some(&"Hi!"));
        })))
        ._ignite()
        .await?;

    let state = rocket.state::<&'static str>();
    assert_eq!(state, Some(&"Hi!"));
    Ok(())
}

#[rocket::async_test]
async fn test_launch_state_is_well_ordered() -> Result<(), Error> {
    let rocket = rocket::ignite()
        .attach(AdHoc::on_launch("Inspect State Pre", |rocket| async {
            let state = rocket.state::<&'static str>();
            assert_eq!(state, None);
            Ok(rocket)
        }))
        .attach(AdHoc::on_launch("Add State", |rocket| async {
            Ok(rocket.manage("Hi!"))
        }))
        .attach(AdHoc::on_launch("Inspect State", |rocket| async {
            let state = rocket.state::<&'static str>();
            assert_eq!(state, Some(&"Hi!"));
            Ok(rocket)
        }))
        ._ignite()
        .await?;

    let state = rocket.state::<&'static str>();
    assert_eq!(state, Some(&"Hi!"));
    Ok(())
}

#[should_panic]
#[rocket::async_test]
async fn negative_test_launch_state() {
    let _ = rocket::ignite()
        .attach(AdHoc::on_launch("Add State", |rocket| async {
            Ok(rocket.manage("Hi!"))
        }))
        .attach(AdHoc::on_launch("Inspect State", |rocket| async {
            let state = rocket.state::<&'static str>();
            assert_ne!(state, Some(&"Hi!"));
            Ok(rocket)
        }))
        ._ignite()
        .await;
}