增加类型化开放订单改单能力

2026-08-27 08:08:39 +08:00
parent 6ee1835ca5
commit 9b00a0777a
8 changed files with 846 additions and 7 deletions
@@ -5443,6 +5443,332 @@ fn broker_gtc_partial_fills_preserve_cumulative_order_and_commission_state() {
    assert_eq!(day2_report.fill_events[0].commission, 0.0);
 }

+#[test]
+fn broker_modifies_gtc_limit_order_without_changing_order_identity() {
+    let day1 = NaiveDate::from_ymd_opt(2024, 1, 10).unwrap();
+    let day2 = NaiveDate::from_ymd_opt(2024, 1, 11).unwrap();
+    let data = two_day_limit_order_data(10.0, 9.7);
+    let broker = BrokerSimulator::new_with_execution_price(
+        ChinaAShareCostModel::default(),
+        ChinaEquityRuleHooks::default(),
+        PriceField::Open,
+    );
+    let mut portfolio = PortfolioState::new(1_000_000.0);
+
+    let created = broker
+        .execute(
+            day1,
+            &mut portfolio,
+            &data,
+            &StrategyDecision {
+                order_intents: vec![
+                    OrderIntent::LimitShares {
+                        symbol: "000002.SZ".to_string(),
+                        quantity: 300,
+                        limit_price: 9.8,
+                        reason: "gtc_modify_buy".to_string(),
+                    }
+                    .with_time_in_force(OrderTimeInForce::Gtc),
+                ],
+                ..StrategyDecision::default()
+            },
+        )
+        .expect("create GTC order");
+    let order_id = created.order_events[0].order_id.expect("order id");
+
+    let modified = broker
+        .execute(
+            day1,
+            &mut portfolio,
+            &data,
+            &StrategyDecision {
+                order_intents: vec![OrderIntent::ModifyOrder {
+                    order_id,
+                    new_total_quantity: Some(400),
+                    new_limit_price: Some(9.9),
+                    reason: "raise_gtc_order".to_string(),
+                }],
+                ..StrategyDecision::default()
+            },
+        )
+        .expect("modify GTC order");
+    assert!(modified.fill_events.is_empty());
+    assert!(modified.process_events.iter().any(|event| {
+        event.kind == ProcessEventKind::OrderPendingUpdate && event.order_id == Some(order_id)
+    }));
+    assert!(modified.process_events.iter().any(|event| {
+        event.kind == ProcessEventKind::OrderUpdatePass
+            && event.order_id == Some(order_id)
+            && event.detail.contains("queue_priority_reset=true")
+    }));
+    let update_event = modified
+        .order_events
+        .iter()
+        .find(|event| event.reason.contains("order updated"))
+        .expect("persistent update event");
+    assert_eq!(update_event.order_id, Some(order_id));
+    assert_eq!(update_event.requested_quantity, 400);
+    assert_eq!(update_event.filled_quantity, 0);
+    assert_eq!(update_event.status, OrderStatus::Pending);
+
+    let amended = broker.open_order_views().pop().expect("amended order");
+    assert_eq!(amended.order_id, order_id);
+    assert_eq!(amended.requested_quantity, 400);
+    assert_eq!(amended.remaining_quantity, 400);
+    assert_eq!(amended.limit_price, 9.9);
+
+    let filled = broker
+        .execute(day2, &mut portfolio, &data, &StrategyDecision::default())
+        .expect("fill amended GTC order");
+    assert_eq!(filled.fill_events.len(), 1);
+    assert_eq!(filled.fill_events[0].order_id, Some(order_id));
+    assert_eq!(filled.fill_events[0].quantity, 400);
+    assert_eq!(filled.order_events[0].requested_quantity, 400);
+    assert_eq!(filled.order_events[0].filled_quantity, 400);
+    assert_eq!(filled.order_events[0].status, OrderStatus::Filled);
+}
+
+#[test]
+fn broker_modifies_partially_filled_gtc_total_and_preserves_commission_state() {
+    let day1 = NaiveDate::from_ymd_opt(2024, 1, 10).unwrap();
+    let day2 = NaiveDate::from_ymd_opt(2024, 1, 11).unwrap();
+    let data = two_day_limit_order_data(10.0, 10.0);
+    let broker = BrokerSimulator::new_with_execution_price(
+        ChinaAShareCostModel::default(),
+        ChinaEquityRuleHooks::default(),
+        PriceField::Open,
+    )
+    .with_volume_limit(true)
+    .with_volume_percent(0.001)
+    .with_liquidity_limit(false);
+    let mut portfolio = PortfolioState::new(1_000_000.0);
+
+    let first = broker
+        .execute(
+            day1,
+            &mut portfolio,
+            &data,
+            &StrategyDecision {
+                order_intents: vec![
+                    OrderIntent::LimitShares {
+                        symbol: "000002.SZ".to_string(),
+                        quantity: 300,
+                        limit_price: 10.1,
+                        reason: "partial_then_modify".to_string(),
+                    }
+                    .with_time_in_force(OrderTimeInForce::Gtc),
+                ],
+                ..StrategyDecision::default()
+            },
+        )
+        .expect("partial GTC fill");
+    assert_eq!(first.fill_events[0].quantity, 100);
+    assert_eq!(first.fill_events[0].commission, 5.0);
+    let order_id = first.order_events[0].order_id.expect("order id");
+
+    let modified = broker
+        .execute(
+            day1,
+            &mut portfolio,
+            &data,
+            &StrategyDecision {
+                order_intents: vec![OrderIntent::ModifyOrder {
+                    order_id,
+                    new_total_quantity: Some(200),
+                    new_limit_price: None,
+                    reason: "reduce_total_after_partial_fill".to_string(),
+                }],
+                ..StrategyDecision::default()
+            },
+        )
+        .expect("reduce partially filled order total");
+    let update_event = modified
+        .order_events
+        .iter()
+        .find(|event| event.reason.contains("order updated"))
+        .expect("update event");
+    assert_eq!(update_event.requested_quantity, 200);
+    assert_eq!(update_event.filled_quantity, 100);
+    assert_eq!(update_event.status, OrderStatus::PartiallyFilled);
+    let amended = broker.open_order_views().pop().expect("amended remainder");
+    assert_eq!(amended.requested_quantity, 200);
+    assert_eq!(amended.filled_quantity, 100);
+    assert_eq!(amended.remaining_quantity, 100);
+
+    let final_fill = broker
+        .execute(day2, &mut portfolio, &data, &StrategyDecision::default())
+        .expect("complete amended order");
+    assert_eq!(final_fill.fill_events.len(), 1);
+    assert_eq!(final_fill.fill_events[0].quantity, 100);
+    assert_eq!(final_fill.fill_events[0].commission, 0.0);
+    assert_eq!(final_fill.order_events[0].requested_quantity, 200);
+    assert_eq!(final_fill.order_events[0].filled_quantity, 200);
+    assert_eq!(final_fill.order_events[0].status, OrderStatus::Filled);
+}
+
+#[test]
+fn broker_rejected_modify_has_zero_side_effects() {
+    let day1 = NaiveDate::from_ymd_opt(2024, 1, 10).unwrap();
+    let day2 = NaiveDate::from_ymd_opt(2024, 1, 11).unwrap();
+    let data = two_day_limit_order_data(10.0, 10.0);
+    let broker = BrokerSimulator::new_with_execution_price(
+        ChinaAShareCostModel::default(),
+        ChinaEquityRuleHooks::default(),
+        PriceField::Open,
+    )
+    .with_volume_limit(true)
+    .with_volume_percent(0.001)
+    .with_liquidity_limit(false);
+    let mut portfolio = PortfolioState::new(1_000_000.0);
+    let created = broker
+        .execute(
+            day1,
+            &mut portfolio,
+            &data,
+            &StrategyDecision {
+                order_intents: vec![
+                    OrderIntent::LimitShares {
+                        symbol: "000002.SZ".to_string(),
+                        quantity: 200,
+                        limit_price: 10.1,
+                        reason: "reject_modify_source".to_string(),
+                    }
+                    .with_time_in_force(OrderTimeInForce::Gtc),
+                ],
+                ..StrategyDecision::default()
+            },
+        )
+        .expect("create partially filled GTC order");
+    let order_id = created.order_events[0].order_id.expect("order id");
+    let before = broker.open_order_views();
+    let cash_before = portfolio.cash();
+
+    let rejected = broker
+        .execute(
+            day1,
+            &mut portfolio,
+            &data,
+            &StrategyDecision {
+                order_intents: vec![OrderIntent::ModifyOrder {
+                    order_id,
+                    new_total_quantity: Some(100),
+                    new_limit_price: Some(10.105),
+                    reason: "invalid_modify".to_string(),
+                }],
+                ..StrategyDecision::default()
+            },
+        )
+        .expect("invalid modify is a business rejection");
+    assert!(rejected.fill_events.is_empty());
+    assert!(rejected.process_events.iter().any(|event| {
+        event.kind == ProcessEventKind::OrderUpdateReject
+            && event.order_id == Some(order_id)
+            && event.detail.contains("must_exceed_filled_quantity")
+    }));
+    assert_eq!(broker.open_order_views(), before);
+    assert_eq!(portfolio.cash(), cash_before);
+
+    let final_fill = broker
+        .execute(day2, &mut portfolio, &data, &StrategyDecision::default())
+        .expect("original order remains executable");
+    assert_eq!(final_fill.fill_events[0].order_id, Some(order_id));
+    assert_eq!(final_fill.fill_events[0].commission, 0.0);
+}
+
+#[test]
+fn broker_accepted_modify_resets_queue_priority_but_reduction_preserves_it() {
+    let date = NaiveDate::from_ymd_opt(2024, 1, 10).unwrap();
+    let data = two_day_limit_order_data(10.0, 10.0);
+    let broker = BrokerSimulator::new_with_execution_price(
+        ChinaAShareCostModel::default(),
+        ChinaEquityRuleHooks::default(),
+        PriceField::Open,
+    );
+    let mut portfolio = PortfolioState::new(1_000_000.0);
+    let create = |reason: &str| StrategyDecision {
+        order_intents: vec![
+            OrderIntent::LimitShares {
+                symbol: "000002.SZ".to_string(),
+                quantity: 300,
+                limit_price: 9.8,
+                reason: reason.to_string(),
+            }
+            .with_time_in_force(OrderTimeInForce::Gtc),
+        ],
+        ..StrategyDecision::default()
+    };
+    broker
+        .execute(date, &mut portfolio, &data, &create("first"))
+        .unwrap();
+    broker
+        .execute(date, &mut portfolio, &data, &create("second"))
+        .unwrap();
+    let initial_ids = broker
+        .open_order_views()
+        .iter()
+        .map(|order| order.order_id)
+        .collect::<Vec<_>>();
+    assert_eq!(initial_ids.len(), 2);
+
+    let reduced = broker
+        .execute(
+            date,
+            &mut portfolio,
+            &data,
+            &StrategyDecision {
+                order_intents: vec![OrderIntent::ModifyOrder {
+                    order_id: initial_ids[0],
+                    new_total_quantity: Some(200),
+                    new_limit_price: None,
+                    reason: "reduce_without_requeue".to_string(),
+                }],
+                ..StrategyDecision::default()
+            },
+        )
+        .unwrap();
+    assert!(reduced.process_events.iter().any(|event| {
+        event.kind == ProcessEventKind::OrderUpdatePass
+            && event.detail.contains("queue_priority_reset=false")
+    }));
+    assert_eq!(
+        broker
+            .open_order_views()
+            .iter()
+            .map(|order| order.order_id)
+            .collect::<Vec<_>>(),
+        initial_ids
+    );
+
+    let repriced = broker
+        .execute(
+            date,
+            &mut portfolio,
+            &data,
+            &StrategyDecision {
+                order_intents: vec![OrderIntent::ModifyOrder {
+                    order_id: initial_ids[0],
+                    new_total_quantity: None,
+                    new_limit_price: Some(9.9),
+                    reason: "reprice_and_requeue".to_string(),
+                }],
+                ..StrategyDecision::default()
+            },
+        )
+        .unwrap();
+    assert!(repriced.process_events.iter().any(|event| {
+        event.kind == ProcessEventKind::OrderUpdatePass
+            && event.detail.contains("queue_priority_reset=true")
+    }));
+    assert_eq!(
+        broker
+            .open_order_views()
+            .iter()
+            .map(|order| order.order_id)
+            .collect::<Vec<_>>(),
+        vec![initial_ids[1], initial_ids[0]]
+    );
+}
+
 #[test]
 fn broker_rejects_gtc_for_market_order() {
    let date = NaiveDate::from_ymd_opt(2024, 1, 10).unwrap();