Fix TestStatsNoStream (#224)

* Fix TestStatsNoStream

* Fix linting error

---------

Co-authored-by: Donal Hurley <d.hurley@f5.com>
Co-authored-by: Luca Comellini <luca.com@gmail.com>

Author: dhurley

client/nginx.go

@@ -1241,7 +1241,7 @@ func (client *NginxClient) GetStats() (*Stats, error) {
 	streamZones := &StreamServerZones{}
 	streamUpstreams := &StreamUpstreams{}
 	limitConnsStream := &StreamLimitConnections{}
-	streamZoneSync := &StreamZoneSync{}
+	var streamZoneSync *StreamZoneSync
 
 	if slices.Contains(endpoints, "stream") {
 		streamEndpoints, err := client.GetAvailableStreamEndpoints()

client/nginx_test.go

@@ -637,8 +637,8 @@ func TestGetStats_NoStreamEndpoint(t *testing.T) {
 	if !reflect.DeepEqual(stats.StreamUpstreams, StreamUpstreams{}) {
 		t.Fatalf("StreamUpstreams: expected %v, actual %v", StreamUpstreams{}, stats.StreamUpstreams)
 	}
-	if !reflect.DeepEqual(stats.StreamZoneSync, &StreamZoneSync{}) {
-		t.Fatalf("StreamZoneSync: expected %v, actual %v", &StreamZoneSync{}, stats.StreamZoneSync)
+	if stats.StreamZoneSync != nil {
+		t.Fatalf("StreamZoneSync: expected %v, actual %v", nil, stats.StreamZoneSync)
 	}
 }