@Test
 public void testGetPredecessors() {
   final NetFactsType net = (NetFactsType) specUnderTest.getDecomposition().get(0);
   final ProcessControlElements pcElements = net.getProcessControlElements();
   LOGGER.debug("Predecessors Map:");
   checkPredecessors(
       pcElements.getInputCondition(), context.getPreSet(pcElements.getInputCondition()));
   for (final ExternalNetElementType element : pcElements.getTaskOrCondition()) {
     checkPredecessors(element, context.getPreSet(element));
   }
   checkPredecessors(
       pcElements.getOutputCondition(), context.getPreSet(pcElements.getOutputCondition()));
 }