修正退市整理期交易状态判定

crates/fidc-core/src/risk_control.rs

@@ -199,7 +199,7 @@ impl ChinaAShareRiskControl {
         let terminal_status = matches!(
             status.as_str(),
             "inactive" | "delisted" | "terminated" | "expired"
-        ) || status.contains("delist");
+        );
         if terminal_status && instrument.delisted_at.is_none() {
             return Some("inactive_or_delisted");
         }
@@ -765,6 +765,45 @@ mod tests {
         NaiveDate::from_ymd_opt(year, month, day).expect("valid date")
     }
 
+    fn instrument(status: &str, delisted_at: Option<NaiveDate>) -> Instrument {
+        Instrument {
+            symbol: "002898.SZ".to_string(),
+            name: "赛隆退".to_string(),
+            board: "SZ".to_string(),
+            round_lot: 100,
+            listed_at: Some(d(2017, 9, 12)),
+            delisted_at,
+            status: status.to_string(),
+        }
+    }
+
+    #[test]
+    fn delisting_period_status_is_not_terminal_without_delisted_date() {
+        let date = d(2025, 3, 20);
+
+        assert_eq!(
+            ChinaAShareRiskControl::instrument_rejection_reason(
+                Some(&instrument("delisting", None)),
+                date,
+            ),
+            None
+        );
+        assert_eq!(
+            ChinaAShareRiskControl::instrument_rejection_reason(
+                Some(&instrument("delisted", None)),
+                date,
+            ),
+            Some("inactive_or_delisted")
+        );
+        assert_eq!(
+            ChinaAShareRiskControl::instrument_rejection_reason(
+                Some(&instrument("delisting", Some(d(2026, 7, 20)))),
+                d(2026, 7, 20),
+            ),
+            Some("inactive_or_delisted")
+        );
+    }
+
     fn candidate(date: NaiveDate) -> CandidateEligibility {
         CandidateEligibility {
             date,