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Use actual tests for SystemParam regression tests (#8270)
# Objective Our regression tests for `SystemParam` currently consist of a bunch of loosely dispersed struct definitions. This is messy, and doesn't fully test their functionality. ## Solution Group the struct definitions into functions annotated with `#[test]`. This not only makes the module more organized, but it allows us to call `assert_is_system`, which has the potential to catch some bugs that would have been missed with the old approach. Also, this approach is consistent with how `WorldQuery` regression tests are organized.
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JoJoJet
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1 changed files with 132 additions and 74 deletions
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@ -1563,116 +1563,174 @@ mod tests {
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use crate::{
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self as bevy_ecs, // Necessary for the `SystemParam` Derive when used inside `bevy_ecs`.
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query::{ReadOnlyWorldQuery, WorldQuery},
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system::Query,
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system::{assert_is_system, Query},
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};
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use std::marker::PhantomData;
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// Compile test for https://github.com/bevyengine/bevy/pull/2838.
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#[derive(SystemParam)]
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pub struct SpecialQuery<
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'w,
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's,
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Q: WorldQuery + Send + Sync + 'static,
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F: ReadOnlyWorldQuery + Send + Sync + 'static = (),
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> {
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_query: Query<'w, 's, Q, F>,
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#[test]
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fn system_param_generic_bounds() {
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#[derive(SystemParam)]
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pub struct SpecialQuery<
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'w,
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's,
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Q: WorldQuery + Send + Sync + 'static,
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F: ReadOnlyWorldQuery + Send + Sync + 'static = (),
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> {
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_query: Query<'w, 's, Q, F>,
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}
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fn my_system(_: SpecialQuery<(), ()>) {}
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assert_is_system(my_system);
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}
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// Compile tests for https://github.com/bevyengine/bevy/pull/6694.
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#[test]
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fn system_param_flexibility() {
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#[derive(SystemParam)]
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pub struct SpecialRes<'w, T: Resource> {
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_res: Res<'w, T>,
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}
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#[derive(SystemParam)]
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pub struct SpecialRes<'w, T: Resource> {
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_res: Res<'w, T>,
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}
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#[derive(SystemParam)]
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pub struct SpecialLocal<'s, T: FromWorld + Send + 'static> {
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_local: Local<'s, T>,
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}
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#[derive(SystemParam)]
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pub struct SpecialLocal<'s, T: FromWorld + Send + 'static> {
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_local: Local<'s, T>,
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#[derive(Resource)]
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struct R;
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fn my_system(_: SpecialRes<R>, _: SpecialLocal<u32>) {}
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assert_is_system(my_system);
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}
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#[derive(Resource)]
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pub struct R<const I: usize>;
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// Compile test for https://github.com/bevyengine/bevy/pull/7001.
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#[derive(SystemParam)]
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pub struct ConstGenericParam<'w, const I: usize>(Res<'w, R<I>>);
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#[test]
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fn system_param_const_generics() {
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#[derive(SystemParam)]
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pub struct ConstGenericParam<'w, const I: usize>(Res<'w, R<I>>);
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// Compile test for https://github.com/bevyengine/bevy/pull/6867.
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#[derive(SystemParam)]
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pub struct LongParam<'w> {
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_r0: Res<'w, R<0>>,
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_r1: Res<'w, R<1>>,
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_r2: Res<'w, R<2>>,
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_r3: Res<'w, R<3>>,
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_r4: Res<'w, R<4>>,
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_r5: Res<'w, R<5>>,
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_r6: Res<'w, R<6>>,
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_r7: Res<'w, R<7>>,
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_r8: Res<'w, R<8>>,
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_r9: Res<'w, R<9>>,
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_r10: Res<'w, R<10>>,
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_r11: Res<'w, R<11>>,
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_r12: Res<'w, R<12>>,
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_r13: Res<'w, R<13>>,
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_r14: Res<'w, R<14>>,
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_r15: Res<'w, R<15>>,
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_r16: Res<'w, R<16>>,
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fn my_system(_: ConstGenericParam<0>, _: ConstGenericParam<1000>) {}
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assert_is_system(my_system);
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}
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#[allow(dead_code)]
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fn long_system(_param: LongParam) {
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crate::system::assert_is_system(long_system);
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// Compile test for https://github.com/bevyengine/bevy/pull/6867.
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#[test]
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fn system_param_field_limit() {
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#[derive(SystemParam)]
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pub struct LongParam<'w> {
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// Each field should be a distinct type so there will
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// be an error if the derive messes up the field order.
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_r0: Res<'w, R<0>>,
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_r1: Res<'w, R<1>>,
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_r2: Res<'w, R<2>>,
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_r3: Res<'w, R<3>>,
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_r4: Res<'w, R<4>>,
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_r5: Res<'w, R<5>>,
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_r6: Res<'w, R<6>>,
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_r7: Res<'w, R<7>>,
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_r8: Res<'w, R<8>>,
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_r9: Res<'w, R<9>>,
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_r10: Res<'w, R<10>>,
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_r11: Res<'w, R<11>>,
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_r12: Res<'w, R<12>>,
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_r13: Res<'w, R<13>>,
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_r14: Res<'w, R<14>>,
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_r15: Res<'w, R<15>>,
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_r16: Res<'w, R<16>>,
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}
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fn long_system(_: LongParam) {}
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assert_is_system(long_system);
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}
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// Compile test for https://github.com/bevyengine/bevy/pull/6919.
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// Regression test for https://github.com/bevyengine/bevy/issues/7447.
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#[derive(SystemParam)]
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struct IgnoredParam<'w, T: Resource, Marker: 'static> {
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_foo: Res<'w, T>,
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#[system_param(ignore)]
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marker: PhantomData<&'w Marker>,
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marker2: PhantomData<&'w Marker>,
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#[test]
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fn system_param_phantom_data() {
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#[derive(SystemParam)]
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struct IgnoredParam<'w, T: Resource, Marker: 'static> {
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_foo: Res<'w, T>,
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#[system_param(ignore)]
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marker: PhantomData<&'w Marker>,
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marker2: PhantomData<&'w Marker>,
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}
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fn my_system(_: IgnoredParam<R<0>, ()>) {}
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assert_is_system(my_system);
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}
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// Compile tests for https://github.com/bevyengine/bevy/pull/6957.
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#[test]
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fn system_param_struct_variants() {
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#[derive(SystemParam)]
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pub struct UnitParam;
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#[derive(SystemParam)]
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pub struct UnitParam;
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#[derive(SystemParam)]
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pub struct TupleParam<'w, 's, R: Resource, L: FromWorld + Send + 'static>(
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Res<'w, R>,
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Local<'s, L>,
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);
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#[derive(SystemParam)]
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pub struct TupleParam<'w, 's, R: Resource, L: FromWorld + Send + 'static>(
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Res<'w, R>,
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Local<'s, L>,
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);
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#[derive(Resource)]
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struct PrivateResource;
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fn my_system(_: UnitParam, _: TupleParam<R<0>, u32>) {}
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assert_is_system(my_system);
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}
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// Regression test for https://github.com/bevyengine/bevy/issues/4200.
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#[derive(SystemParam)]
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pub struct EncapsulatedParam<'w>(Res<'w, PrivateResource>);
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#[test]
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fn system_param_private_fields() {
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#[derive(Resource)]
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struct PrivateResource;
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#[derive(SystemParam)]
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pub struct EncapsulatedParam<'w>(Res<'w, PrivateResource>);
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fn my_system(_: EncapsulatedParam) {}
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assert_is_system(my_system);
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}
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// Regression test for https://github.com/bevyengine/bevy/issues/7103.
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#[derive(SystemParam)]
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pub struct WhereParam<'w, 's, Q>
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where
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Q: 'static + WorldQuery,
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{
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_q: Query<'w, 's, Q, ()>,
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#[test]
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fn system_param_where_clause() {
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#[derive(SystemParam)]
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pub struct WhereParam<'w, 's, Q>
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where
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Q: 'static + WorldQuery,
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{
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_q: Query<'w, 's, Q, ()>,
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}
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fn my_system(_: WhereParam<()>) {}
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assert_is_system(my_system);
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}
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// Regression test for https://github.com/bevyengine/bevy/issues/1727.
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#[derive(SystemParam)]
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pub struct Collide<'w> {
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_x: Res<'w, FetchState>,
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}
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#[test]
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fn system_param_name_collision() {
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#[derive(Resource)]
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pub struct FetchState;
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#[derive(Resource)]
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pub struct FetchState;
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#[derive(SystemParam)]
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pub struct Collide<'w> {
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_x: Res<'w, FetchState>,
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}
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fn my_system(_: Collide) {}
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assert_is_system(my_system);
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}
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// Regression test for https://github.com/bevyengine/bevy/issues/8192.
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#[derive(SystemParam)]
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pub struct InvariantParam<'w, 's> {
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_set: ParamSet<'w, 's, (Query<'w, 's, ()>,)>,
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#[test]
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fn system_param_invariant_lifetime() {
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#[derive(SystemParam)]
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pub struct InvariantParam<'w, 's> {
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_set: ParamSet<'w, 's, (Query<'w, 's, ()>,)>,
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}
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fn my_system(_: InvariantParam) {}
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assert_is_system(my_system);
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}
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}
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