generates test (#40)

Author: zaucy

ecsact/entt/detail/system_execution_context.hh

@@ -345,7 +345,10 @@ struct system_execution_context : system_execution_context_base {
 		using ecsact::entt::detail::pending_add;
 
 		auto new_entity = info.create_entity().entt_entity_id;
-		info.registry.template emplace<created_entity>(new_entity);
+		info.registry.template emplace<created_entity>(
+			new_entity,
+			ecsact_generated_entity
+		);
 		for(int i = 0; component_count > i; ++i) {
 			auto component_id = component_ids[i];
 			auto component_data = components_data[i];

runtime/test/runtime_test.cc

@@ -31,6 +31,7 @@ void runtime_test::OtherEntitySystem::impl(context& ctx) {
 }
 
 void runtime_test::MakeAnother::impl(context& ctx) {
+	ctx._ctx.generate(ctx.get<ComponentA>());
 }
 
 void runtime_test::AlwaysRemove::impl(context& ctx) {
@@ -644,6 +645,36 @@ TEST(Core, DynamicSystemImpl) {
 	EXPECT_EQ(comp_get.a, comp.a);
 }
 
+TEST(Core, GeneratesCreateEvent) {
+	ecsact_set_system_execution_impl(
+		ecsact_id_cast<ecsact_system_like_id>(runtime_test::MakeAnother::id),
+		&runtime_test__MakeAnother
+	);
+
+	auto reg = ecsact::core::registry("GeneratesCreateEvent");
+
+	auto test_entity = reg.create_entity();
+	auto test_action = runtime_test::MakeAnother{};
+	reg.add_component(test_entity, runtime_test::ComponentA{});
+
+	auto options = ecsact::core::execution_options{};
+	options.push_action(&test_action);
+
+	auto evc = ecsact::core::execution_events_collector<>{};
+	auto event_happened = false;
+	evc.set_entity_created_callback(
+		[&](ecsact_entity_id, ecsact_placeholder_entity_id placeholder) {
+			event_happened = true;
+			ASSERT_EQ(placeholder, ecsact_generated_entity);
+		}
+	);
+
+	auto exec_err = reg.execute_systems(std::array{options}, evc);
+	EXPECT_EQ(exec_err, ECSACT_EXEC_SYS_OK);
+	EXPECT_TRUE(event_happened);
+	EXPECT_EQ(2, reg.count_entities());
+}
+
 TEST(Core, CreateAndDestroyEntity) {
 	auto reg = ecsact::core::registry("CreateAndDestroyEntity");
 

runtime/test/runtime_test.ecsact

@@ -51,7 +51,7 @@ system AlwaysRemove {
 action MakeAnother {
 	readwrite ComponentA;
 	generates {
-		required OtherEntityComponent;
+		required ComponentA;
 	}
 }