for _, tc := range cases {
		t.Run(tc.desc, func(t *testing.T) {
			ctx := context.Background()
			syncedFunc := func() bool {
				return tc.synced
			}
			volumesInUseFunc := func() []v1.UniqueVolumeName {
				return tc.volumesInUse
			}
			// construct setter
			setter := VolumesInUse(syncedFunc, volumesInUseFunc)
			// call setter on node
			if err := setter(ctx, tc.node); err != nil {