修复(#19): 续费订单支持限时活动价 (#19)

Co-authored-by: multica-agent <github@multica.ai>
2026-06-10 00:31:24 -07:00
parent f5ad26b943
commit 268ae1ebf8
3 changed files with 121 additions and 7 deletions
@@ -297,3 +297,78 @@ func TestCalculatePurchasePriceNewUserGatedByFirstPurchase(t *testing.T) {
 		t.Fatalf("PayableBase = %d, want 900 (regular 90%% discount)", result.PayableBase)
 	}
 }
+
+func TestCalculateRenewalPriceCampaignAppliesToReturningUsers(t *testing.T) {
+	model := &fakePromoModel{rules: []*promo.RuleWithPrice{
+		{
+			Rule: promo.Rule{
+				Id:      21,
+				Name:    "renewal campaign",
+				Type:    promo.RuleTypeCampaign,
+				Enabled: true,
+			},
+			PromoPrice: 700,
+		},
+	}}
+	svcCtx := &svc.ServiceContext{DB: &gorm.DB{}, PromoModel: model}
+
+	result, err := calculateRenewalPrice(
+		context.Background(),
+		svcCtx,
+		42,
+		2,
+		500,
+		3,
+		[]types.SubscribeDiscount{{Quantity: 3, Discount: 80}},
+		true,
+	)
+	if err != nil {
+		t.Fatalf("calculateRenewalPrice returned error: %v", err)
+	}
+	if result.OriginalPrice != 1500 {
+		t.Fatalf("OriginalPrice = %d, want 1500", result.OriginalPrice)
+	}
+	if result.PayableBase != 700 {
+		t.Fatalf("PayableBase = %d, want 700", result.PayableBase)
+	}
+	if result.DiscountAmount != 0 {
+		t.Fatalf("DiscountAmount = %d, want 0 when promo applies", result.DiscountAmount)
+	}
+	if result.PromoRuleId != 21 {
+		t.Fatalf("PromoRuleId = %d, want 21", result.PromoRuleId)
+	}
+	if result.PromoDiscount != 800 {
+		t.Fatalf("PromoDiscount = %d, want 800", result.PromoDiscount)
+	}
+}
+
+func TestCalculateRenewalPriceFallsBackToRegularDiscountWhenPromoMisses(t *testing.T) {
+	model := &fakePromoModel{rules: nil}
+	svcCtx := &svc.ServiceContext{DB: &gorm.DB{}, PromoModel: model}
+
+	result, err := calculateRenewalPrice(
+		context.Background(),
+		svcCtx,
+		42,
+		2,
+		500,
+		3,
+		[]types.SubscribeDiscount{{Quantity: 3, Discount: 80}},
+		true,
+	)
+	if err != nil {
+		t.Fatalf("calculateRenewalPrice returned error: %v", err)
+	}
+	if result.OriginalPrice != 1500 {
+		t.Fatalf("OriginalPrice = %d, want 1500", result.OriginalPrice)
+	}
+	if result.PayableBase != 1200 {
+		t.Fatalf("PayableBase = %d, want 1200", result.PayableBase)
+	}
+	if result.DiscountAmount != 300 {
+		t.Fatalf("DiscountAmount = %d, want 300", result.DiscountAmount)
+	}
+	if result.PromoRuleId != 0 || result.PromoDiscount != 0 {
+		t.Fatalf("promo fields = (%d, %d), want (0, 0)", result.PromoRuleId, result.PromoDiscount)
+	}
+}