diff --git a/pkg/exoscale/dbaas.go b/pkg/exoscale/dbaas.go
index 7f9ddd8..fb4ffb1 100644
--- a/pkg/exoscale/dbaas.go
+++ b/pkg/exoscale/dbaas.go
@@ -3,6 +3,8 @@ package exoscale
 import (
 	"context"
 	"fmt"
+	"time"
+
 	egoscale "github.com/exoscale/egoscale/v2"
 	"github.com/vshn/billing-collector-cloudservices/pkg/controlAPI"
 	"github.com/vshn/billing-collector-cloudservices/pkg/kubernetes"
@@ -12,7 +14,6 @@ import (
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	k8s "sigs.k8s.io/controller-runtime/pkg/client"
-	"time"
 )
 
 const productIdPrefix = "appcat-exoscale-dbaas"
@@ -95,7 +96,7 @@ func (ds *DBaaS) GetMetrics(ctx context.Context) ([]odoo.OdooMeteredBillingRecor
 		return nil, fmt.Errorf("fetchDBaaSUsage: %w", err)
 	}
 
-	return ds.aggregateDBaaS(ctx, ds.promClient, usage, detail)
+	return ds.AggregateDBaaS(ctx, usage, detail)
 }
 
 // fetchManagedDBaaSAndNamespaces fetches instances and namespaces from kubernetes cluster
@@ -178,8 +179,8 @@ func (ds *DBaaS) fetchDBaaSUsage(ctx context.Context) ([]*egoscale.DatabaseServi
 	return databaseServices, nil
 }
 
-// aggregateDBaaS aggregates DBaaS services by namespaces and plan
-func (ds *DBaaS) aggregateDBaaS(ctx context.Context, promClient apiv1.API, exoscaleDBaaS []*egoscale.DatabaseService, dbaasDetails []Detail) ([]odoo.OdooMeteredBillingRecord, error) {
+// AggregateDBaaS aggregates DBaaS services by namespaces and plan
+func (ds *DBaaS) AggregateDBaaS(ctx context.Context, exoscaleDBaaS []*egoscale.DatabaseService, dbaasDetails []Detail) ([]odoo.OdooMeteredBillingRecord, error) {
 	logger := log.Logger(ctx)
 	logger.Info("Aggregating DBaaS instances by namespace and plan")
 
diff --git a/pkg/exoscale/dbaas_test.go b/pkg/exoscale/dbaas_test.go
index 914f1ae..42949d4 100644
--- a/pkg/exoscale/dbaas_test.go
+++ b/pkg/exoscale/dbaas_test.go
@@ -9,13 +9,13 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/vshn/billing-collector-cloudservices/pkg/exofixtures"
 	"github.com/vshn/billing-collector-cloudservices/pkg/log"
+	"github.com/vshn/billing-collector-cloudservices/pkg/odoo"
 )
 
 func TestDBaaS_aggregatedDBaaS(t *testing.T) {
 	ctx := getTestContext(t)
 
-	key1 := NewKey("vshn-xyz", "hobbyist-2", string(exofixtures.PostgresDBaaSType))
-	key2 := NewKey("vshn-abc", "business-128", string(exofixtures.PostgresDBaaSType))
+	location, _ := time.LoadLocation("Europe/Zurich")
 
 	now := time.Now().In(location)
 	record1 := odoo.OdooMeteredBillingRecord{
@@ -47,9 +47,9 @@ func TestDBaaS_aggregatedDBaaS(t *testing.T) {
 	expectedAggregatedOdooRecords := []odoo.OdooMeteredBillingRecord{record1, record2}
 
 	tests := map[string]struct {
-		dbaasDetails            []Detail
-		exoscaleDBaaS           []*egoscale.DatabaseService
-		expectedAggregatedDBaaS map[Key]Aggregated
+		dbaasDetails                  []Detail
+		exoscaleDBaaS                 []*egoscale.DatabaseService
+		expectedAggregatedOdooRecords []odoo.OdooMeteredBillingRecord
 	}{
 		"given DBaaS details and Exoscale DBaasS, we should get the ExpectedAggregatedDBaasS": {
 			dbaasDetails: []Detail{
@@ -78,7 +78,7 @@ func TestDBaaS_aggregatedDBaaS(t *testing.T) {
 					Plan: strToPointer("business-128"),
 				},
 			},
-			expectedAggregatedDBaaS: expectedAggregatedDBaaS,
+			expectedAggregatedOdooRecords: expectedAggregatedOdooRecords,
 		},
 		"given DBaaS details and different names in Exoscale DBaasS, we should not get the ExpectedAggregatedDBaasS": {
 			dbaasDetails: []Detail{
@@ -106,14 +106,16 @@ func TestDBaaS_aggregatedDBaaS(t *testing.T) {
 				},
 			},
 
-			expectedAggregatedDBaaS: map[Key]Aggregated{},
+			expectedAggregatedOdooRecords: []odoo.OdooMeteredBillingRecord{},
 		},
 	}
 
 	for name, tc := range tests {
 		t.Run(name, func(t *testing.T) {
-			aggregatedDBaaS := aggregateDBaaS(ctx, tc.exoscaleDBaaS, tc.dbaasDetails)
-			assert.Equal(t, tc.expectedAggregatedDBaaS, aggregatedDBaaS)
+			ds, _ := NewDBaaS(nil, nil, nil, 1, "1234", "c-test1", map[string]string{})
+			aggregatedOdooRecords, err := ds.AggregateDBaaS(ctx, tc.exoscaleDBaaS, tc.dbaasDetails)
+			assert.NoError(t, err)
+			assert.Equal(t, tc.expectedAggregatedOdooRecords, aggregatedOdooRecords)
 		})
 	}
 }