### Question:
StatisticIdentityGenerator { public static String getIdReferencingComponent(String name, ComponentType componentType, ArtifactHolder holder) { String idString = name + "@" + holder.getIdString() + ":" + name + "@indirect"; holder.setHashCode(holder.getHashCode() + idString.hashCode()); if (log.isDebugEnabled()) { log.debug("Adding Referencing Component : " + idString); } if (RuntimeStatisticCollector.isOpenTracingEnabled()) { ArtifactHolderStore.addStructuringElementStack(idString, holder); } process(idString, componentType, holder); return idString; }  static void conclude(ArtifactHolder holder); static String getIdForComponent(String name, ComponentType componentType, ArtifactHolder holder); static String getIdReferencingComponent(String name, ComponentType componentType, ArtifactHolder holder); static String getIdForFlowContinuableMediator(String mediatorName, ComponentType componentType, ArtifactHolder holder); static void reportingBranchingEvents(ArtifactHolder holder); static void reportingEndEvent(String name, ComponentType componentType, ArtifactHolder holder); static void reportingFlowContinuableEndEvent(String mediatorId, ComponentType mediator, ArtifactHolder holder); static void reportingEndBranchingEvent(ArtifactHolder holder); static void setSynapseConfiguration(SynapseConfiguration synapseConfiguration);  }### Answer:
@Test public void testGetIdReferencingComponent() { cleanUp(); String idString = StatisticIdentityGenerator.getIdReferencingComponent(COMPONENT, ComponentType.API, artifactHolder); Assert.assertEquals("validating idString", idString, COMPONENT + "@0:" + COMPONENT + "@indirect"); Assert.assertEquals("process method add new item to stack for API component type", artifactHolder.getStack().size(), 2); Assert.assertEquals("process method add new item to list for API component type", artifactHolder.getList().size(), 2); idString = StatisticIdentityGenerator.getIdReferencingComponent(COMPONENT, ComponentType.SEQUENCE, artifactHolder); Assert.assertEquals("validating idString", idString, COMPONENT + "@1:" + COMPONENT + "@indirect"); Assert.assertEquals("process method add new item to stack for SEQUENCE component type", artifactHolder.getStack().size(), 3); Assert.assertEquals("process method add new item to list for SEQUENCE component type", artifactHolder.getList().size(), 3); artifactHolder.setExitFromBox(true); idString = StatisticIdentityGenerator.getIdReferencingComponent(COMPONENT, ComponentType.MEDIATOR, artifactHolder); Assert.assertEquals("validating idString", idString, COMPONENT + "@2:" + COMPONENT + "@indirect"); Assert.assertEquals("process method add new item to stack for MEDIATOR component type", artifactHolder.getStack().size(), 4); Assert.assertEquals("process method add new item to list for MEDIATOR component type", artifactHolder.getList().size(), 4); Assert.assertFalse("process method for MEDIATOR must set this to false", artifactHolder.getExitFromBox()); }