修复拉卡拉支付时间偏差

backend/internal/modules/payment/repository_test.go

@@ -2,8 +2,12 @@ package payment
 
 import (
 	"testing"
+	"time"
 
 	"hfb_sys/backend/internal/model"
+	"hfb_sys/backend/internal/timeutil"
+
+	"gorm.io/datatypes"
 )
 
 func TestCanReuseOrderPaymentRejectsTerminalAndOldChannel(t *testing.T) {
@@ -85,3 +89,42 @@ func TestNewOrderPaymentUsesPaymentNoAsThirdOrderID(t *testing.T) {
 		t.Fatalf("payment order fields mismatch: %+v", payment)
 	}
 }
+
+func TestCanReuseOrderPaymentRejectsExpiredCashier(t *testing.T) {
+	runtimeConfig := runtimePaymentConfig{
+		Provider:   "lakala",
+		MerchantID: "M2",
+	}
+	expiredPayment := model.PaymentOrder{
+		Status:     "paying",
+		Provider:   "lakala",
+		MerchantID: "M2",
+		RawRequest: datatypes.JSON([]byte(`{"order_efficient_time":"20000101000000"}`)),
+	}
+	if canReuseOrderPayment(expiredPayment, runtimeConfig) {
+		t.Fatal("canReuseOrderPayment() = true, want false for expired cashier")
+	}
+
+	activePayment := expiredPayment
+	activePayment.RawRequest = datatypes.JSON([]byte(`{"order_efficient_time":"20990101000000"}`))
+	if !canReuseOrderPayment(activePayment, runtimeConfig) {
+		t.Fatal("canReuseOrderPayment() = false, want true for active cashier")
+	}
+}
+
+func TestParseChannelTimeUsesShanghaiWhenLocalIsUTC(t *testing.T) {
+	oldLocal := time.Local
+	time.Local = time.UTC
+	defer func() {
+		time.Local = oldLocal
+	}()
+
+	parsed := parseChannelTime("20260607202700")
+	if parsed == nil {
+		t.Fatal("parseChannelTime() = nil")
+	}
+	got := parsed.In(timeutil.ShanghaiLocation()).Format("20060102150405")
+	if got != "20260607202700" {
+		t.Fatalf("parseChannelTime() = %s, want 20260607202700 in Asia/Shanghai", got)
+	}
+}