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https://github.com/bevyengine/bevy.git
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François Mockers
f865af110a
# Objective - Show how a Bevy app can be automated through BRP ## Solution - Example app_under_test is a basic app with a randomly placed button. when the button is clicked, the app quit - Example automated_test click that button through BRP using `WindowEvent` so that it goes through the whole of Bevy ## Testing - Run both example and they both exit --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Kevin Chen <chen.kevin.f@gmail.com>
114 lines
3.7 KiB
Rust
114 lines
3.7 KiB
Rust
//! A Bevy app that can be used as an integration test target.
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//! It displays a button that must be clicked. The button is placed at a random position and
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//! moves every 5 seconds.
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//!
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//! Run with the `bevy_remote` feature enabled:
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//! ```bash
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//! cargo run --example app_under_test --features="bevy_remote"
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//! ```
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//! This example can be paired with the `integration_test` example, which will run an integration
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//! test on this app.
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use bevy::{
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prelude::*,
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remote::{http::RemoteHttpPlugin, RemotePlugin},
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time::common_conditions::on_timer,
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ui::UiGlobalTransform,
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};
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use chacha20::ChaCha8Rng;
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use rand::{RngExt, SeedableRng};
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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// To make the app available for integration testing, we add these
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// remote plugins to expose API’s for a testing framework to call.
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.add_plugins(RemotePlugin::default())
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.add_plugins(RemoteHttpPlugin::default())
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.insert_resource(SeededRng(ChaCha8Rng::seed_from_u64(19878367467712)))
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.add_systems(Startup, setup)
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.add_systems(
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Update,
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(
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move_button.run_if(on_timer(std::time::Duration::from_secs(5))),
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log_button_position,
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),
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)
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.run();
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}
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#[derive(Resource)]
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struct SeededRng(ChaCha8Rng);
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fn on_button_click(_click: On<Pointer<Click>>, mut exit: MessageWriter<AppExit>) {
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info!("Button pressed!");
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exit.write(AppExit::Success);
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}
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fn log_button_position(
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transform: Single<&UiGlobalTransform, (With<Button>, Changed<UiGlobalTransform>)>,
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) {
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info!(
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"Button at physical ({}, {})",
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transform.translation.x, transform.translation.y
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);
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}
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fn random_position(rng: &mut ChaCha8Rng) -> (f32, f32) {
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let left_pct = rng.random_range(0.0..=60.0);
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let top_pct = rng.random_range(0.0..=60.0);
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(left_pct, top_pct)
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}
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fn move_button(mut rng: ResMut<SeededRng>, mut button_query: Query<&mut Node, With<Button>>) {
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let (left_pct, top_pct) = random_position(&mut rng.0);
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for mut node in &mut button_query {
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node.left = percent(left_pct);
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node.top = percent(top_pct);
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}
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}
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fn setup(mut commands: Commands, assets: Res<AssetServer>, mut rng: ResMut<SeededRng>) {
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let (left_pct, top_pct) = random_position(&mut rng.0);
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commands.spawn(Camera2d);
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commands
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.spawn(Node {
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width: percent(100),
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height: percent(100),
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..default()
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})
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.with_children(|parent| {
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parent
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.spawn((
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Button,
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Node {
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width: px(150),
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height: px(65),
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border: UiRect::all(px(5)),
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justify_content: JustifyContent::Center,
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align_items: AlignItems::Center,
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border_radius: BorderRadius::MAX,
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left: percent(left_pct),
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top: percent(top_pct),
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..default()
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},
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BorderColor::all(Color::WHITE),
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BackgroundColor(Color::BLACK),
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))
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.observe(on_button_click)
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.with_children(|parent| {
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parent.spawn((
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Text::new("Button"),
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TextFont {
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font: assets.load("fonts/FiraSans-Bold.ttf").into(),
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font_size: FontSize::Px(33.0),
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..default()
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},
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TextColor(Color::srgb(0.9, 0.9, 0.9)),
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TextShadow::default(),
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));
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});
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});
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}
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