test: add pet fusion transaction coverage

modules/player/service/pet_fusion_tx.go

@@ -72,6 +72,9 @@ func (s *UserService) PetFusionTx(
 			return nil
 		}
 
+		if err := syncPetSnapshotBeforeDeleteTx(tx, userID, currentInfo, masterCatchTime); err != nil {
+			return err
+		}
 		if err := deletePetTx(tx, userID, masterCatchTime); err != nil {
 			return err
 		}
@@ -82,6 +85,9 @@ func (s *UserService) PetFusionTx(
 		}
 		result.CostItemUsed = used
 		if !used {
+			if err := syncPetSnapshotBeforeDeleteTx(tx, userID, currentInfo, auxCatchTime); err != nil {
+				return err
+			}
 			if err := deletePetTx(tx, userID, auxCatchTime); err != nil {
 				return err
 			}
@@ -223,6 +229,28 @@ func updatePetDataTx(tx gdb.TX, userID uint32, catchTime uint32, pet model.PetIn
 	return nil
 }
 
+func syncPetSnapshotBeforeDeleteTx(tx gdb.TX, userID uint32, info model.PlayerInfo, catchTime uint32) error {
+	pet, ok := findPetDataSnapshotInPlayerInfo(info, catchTime)
+	if !ok {
+		return nil
+	}
+	return updatePetDataTx(tx, userID, catchTime, pet)
+}
+
+func findPetDataSnapshotInPlayerInfo(info model.PlayerInfo, catchTime uint32) (model.PetInfo, bool) {
+	for i := range info.PetList {
+		if info.PetList[i].CatchTime == catchTime {
+			return info.PetList[i], true
+		}
+	}
+	for i := range info.BackupPetList {
+		if info.BackupPetList[i].CatchTime == catchTime {
+			return info.BackupPetList[i], true
+		}
+	}
+	return model.PetInfo{}, false
+}
+
 func deletePetTx(tx gdb.TX, userID uint32, catchTime uint32) error {
 	res, err := tx.Model(model.NewPet()).
 		Where("player_id", userID).