Test things bevy!

use my_lib::{Countdown, CountdownPlugin};

// import bevy's and bevy_testing's prelude
use bevy_testing::p::*;

// create your app as usual
let mut app = App::new();
app.add_plugins(CountdownPlugin);

// useful world methods are exposed
app.spawn(Countdown(10));

// run schedules once
app.update_once();

// assert that a query returns some values
app.query::<&Countdown>()
    .matches(vec![&Countdown(9)]);

Usage

just use bevy_testing::TestApp (view docs)!

In cases where you need more control, you can always get the world via App::world() and App::world_mut().

This library also exports bevy_testing::p, short for prelude, which contains the entire bevy prelude as well as TestApp.

Query Matching

Use App::query() to check...

Bevy versions