fix test, add defensive check to scaleway

pkg/cloud/scaleway/provider.go

@@ -207,7 +207,13 @@ func (key *scalewayPVKey) Features() string {
 
 func (c *Scaleway) GetPVKey(pv *v1.PersistentVolume, parameters map[string]string, defaultRegion string) models.PVKey {
 	// the csi volume handle is the form <az>/<volume-id>
-	zone := strings.Split(pv.Spec.CSI.VolumeHandle, "/")[0]
+	zone := ""
+	if pv.Spec.CSI != nil {
+		zoneVolID := strings.Split(pv.Spec.CSI.VolumeHandle, "/")
+		if len(zoneVolID) > 0 {
+			zone = zoneVolID[0]
+		}
+	}
 	return &scalewayPVKey{
 		Labels:                 pv.Labels,
 		StorageClassName:       pv.Spec.StorageClassName,

pkg/cloudcost/memoryrepository_test.go

@@ -2,6 +2,7 @@ package cloudcost
 
 import (
 	"reflect"
+	"sort"
 	"testing"
 	"time"
 
@@ -172,6 +173,8 @@ func TestMemoryRepository_Keys(t *testing.T) {
 				t.Errorf("Keys() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
+			sort.Strings(got)
+			sort.Strings(tt.want)
 			if !reflect.DeepEqual(got, tt.want) {
 				t.Errorf("Keys() got = %v, want %v", got, tt.want)
 			}