### Question:
TalendInputOutputEntity extends TalendEntity { @Override public void connectToEntity(List<String> inputs, List<String> outputs) { if (CollectionUtils.isEmpty(inputs) && ClouderaAPIUtil.isFileInputOutputComponent(this.getName())) { String id = GeneratorID.generateDatasetID(this.getJobId(), this.getName()); this.addPreviousEntity(id); } for (String input : inputs) { String id = GeneratorID.generateNodeID(this.getJobId(), input); this.addPreviousEntity(id); } if (CollectionUtils.isEmpty(outputs) && ClouderaAPIUtil.isFileInputOutputComponent(this.getName())) { String id = GeneratorID.generateDatasetID(this.getJobId(), this.getName()); this.addNextEntity(id); } for (String output : outputs) { String id = GeneratorID.generateNodeID(this.getJobId(), output); this.addNextEntity(id); } } TalendInputOutputEntity(String jobId, String componentName); void addNextEntity(String entityId); void addPreviousEntity(String entityId); List<EndPointProxy> getSourceProxies(); void setSourceProxies(List<EndPointProxy> sourceProxies); List<EndPointProxy> getTargetProxies(); void setTargetProxies(List<EndPointProxy> targetProxies); List<String> getPreviousEntitiesId(); List<String> getNextEntitiesId(); @Override void connectToEntity(List<String> inputs, List<String> outputs); @Override String toString();  }### Answer:
@Test public void testConnectToEntity() { TalendInputOutputEntity tioe = new TalendInputOutputEntity("job", "component1"); assertEquals(0, tioe.getPreviousEntitiesId().size()); tioe.connectToEntity(Arrays.asList("component2", "component3"), Arrays.asList("component4", "component5")); assertEquals(2, tioe.getPreviousEntitiesId().size()); assertEquals(2, tioe.getSourceProxies().size()); assertEquals(2, tioe.getNextEntitiesId().size()); assertEquals(2, tioe.getTargetProxies().size()); assertEquals( "[" + GeneratorID.generateNodeID("job", "component2") + ", " + GeneratorID.generateNodeID("job", "component3") + "]---> component1 (" + GeneratorID.generateEntityID("job", "component1") + ") --->[" + GeneratorID.generateNodeID("job", "component4") + ", " + GeneratorID.generateNodeID("job", "component5") + "]", tioe.toString()); }