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Doc and test get_many(_mut) ordering (#8045)

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Turki Jamaan 2023-03-16 15:55:44 +03:00 committed by GitHub
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commit 4a62afb97b
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54
crates/bevy_ecs/src/system/mod.rs
View file

@ -276,6 +276,60 @@ mod tests {
assert_eq!(*world.resource::<SystemRan>(), SystemRan::Yes);
}
#[test]
fn get_many_is_ordered() {
use crate::system::Resource;
const ENTITIES_COUNT: usize = 1000;
#[derive(Resource)]
struct EntitiesArray(Vec<Entity>);
fn query_system(
mut ran: ResMut<SystemRan>,
entities_array: Res<EntitiesArray>,
q: Query<&W<usize>>,
) {
let entities_array: [Entity; ENTITIES_COUNT] =
entities_array.0.clone().try_into().unwrap();
for (i, w) in (0..ENTITIES_COUNT).zip(q.get_many(entities_array).unwrap()) {
assert_eq!(i, w.0);
}
*ran = SystemRan::Yes;
}
fn query_system_mut(
mut ran: ResMut<SystemRan>,
entities_array: Res<EntitiesArray>,
mut q: Query<&mut W<usize>>,
) {
let entities_array: [Entity; ENTITIES_COUNT] =
entities_array.0.clone().try_into().unwrap();
#[allow(unused_mut)]
for (i, mut w) in (0..ENTITIES_COUNT).zip(q.get_many_mut(entities_array).unwrap()) {
assert_eq!(i, w.0);
}
*ran = SystemRan::Yes;
}
let mut world = World::default();
world.insert_resource(SystemRan::No);
let entity_ids = (0..ENTITIES_COUNT)
.map(|i| world.spawn(W(i)).id())
.collect();
world.insert_resource(EntitiesArray(entity_ids));
run_system(&mut world, query_system);
assert_eq!(*world.resource::<SystemRan>(), SystemRan::Yes);
world.insert_resource(SystemRan::No);
run_system(&mut world, query_system_mut);
assert_eq!(*world.resource::<SystemRan>(), SystemRan::Yes);
}
#[test]
fn or_param_set_system() {
// Regression test for issue #762

2
crates/bevy_ecs/src/system/query.rs
View file

@ -797,6 +797,7 @@ impl<'w, 's, Q: WorldQuery, F: ReadOnlyWorldQuery> Query<'w, 's, Q, F> {
/// Returns the read-only query items for the given array of [`Entity`].
///
/// The returned query items are in the same order as the input.
/// In case of a nonexisting entity or mismatched component, a [`QueryEntityError`] is returned instead.
/// The elements of the array do not need to be unique, unlike `get_many_mut`.
///
@ -901,6 +902,7 @@ impl<'w, 's, Q: WorldQuery, F: ReadOnlyWorldQuery> Query<'w, 's, Q, F> {
/// Returns the query items for the given array of [`Entity`].
///
/// The returned query items are in the same order as the input.
/// In case of a nonexisting entity, duplicate entities or mismatched component, a [`QueryEntityError`] is returned instead.
///
/// # See also