ArgumentCaptor<DeleteOperation> captor =
ArgumentCaptor.forClass(DeleteOperation.class);
verify(mockCluster).execute(captor.capture());
DeleteOperation operation = captor.getValue();
RiakKvPB.RpbDelReq.Builder builder =
(RiakKvPB.RpbDelReq.Builder) Whitebox.getInternalState(operation, "reqBuilder");
assertTrue(builder.hasVclock());
assertEquals(1, builder.getDw());