change 'Extraction' of GetResult to 1 step
diff --git a/acceptance/openstack/blockstorage/v1/volumes_test.go b/acceptance/openstack/blockstorage/v1/volumes_test.go
index 0d773db..a8fadb7 100644
--- a/acceptance/openstack/blockstorage/v1/volumes_test.go
+++ b/acceptance/openstack/blockstorage/v1/volumes_test.go
@@ -69,12 +69,7 @@
 		return
 	}
 
-	gr, err := volumes.Get(client, cv.ID)
-	if err != nil {
-		t.Error(err)
-		return
-	}
-	v, err := volumes.ExtractVolume(gr)
+	v, err := volumes.Get(client, cv.ID).ExtractVolume()
 	if err != nil {
 		t.Error(err)
 		return