diff --git a/crates/fidc-core/src/engine.rs b/crates/fidc-core/src/engine.rs
index 42bb5bb..105f9da 100644
--- a/crates/fidc-core/src/engine.rs
+++ b/crates/fidc-core/src/engine.rs
@@ -4251,6 +4251,41 @@ mod tests {
         }
     }
 
+    #[derive(Debug)]
+    struct ScheduledBuyOnDecisionDateStrategy {
+        rule: ScheduleRule,
+        decision_date: NaiveDate,
+    }
+
+    impl Strategy for ScheduledBuyOnDecisionDateStrategy {
+        fn name(&self) -> &str {
+            "scheduled_buy_on_decision_date"
+        }
+
+        fn schedule_rules(&self) -> Vec<ScheduleRule> {
+            vec![self.rule.clone()]
+        }
+
+        fn on_scheduled(
+            &mut self,
+            ctx: &StrategyContext<'_>,
+            rule: &ScheduleRule,
+        ) -> Result<StrategyDecision, super::BacktestError> {
+            assert_eq!(rule.name, self.rule.name);
+            if ctx.decision_date != self.decision_date {
+                return Ok(StrategyDecision::default());
+            }
+            Ok(StrategyDecision {
+                order_intents: vec![OrderIntent::Shares {
+                    symbol: SYMBOL.to_string(),
+                    quantity: 100,
+                    reason: "scheduled_decision_date_buy".to_string(),
+                }],
+                ..StrategyDecision::default()
+            })
+        }
+    }
+
     #[derive(Debug)]
     struct ScheduledEligibleUniverseBuyStrategy {
         rule: ScheduleRule,
@@ -4915,9 +4950,9 @@ mod tests {
 
         let result = BacktestEngine::new(
             dataset,
-            ScheduledBuyStrategy {
+            ScheduledBuyOnDecisionDateStrategy {
                 rule: ScheduleRule::daily("daily_open_signal", ScheduleStage::OpenAuction),
-                expected_decision_date: second,
+                decision_date: second,
             },
             broker,
             config,