### Question:
KPITimingDataBindingFactory implements DataBindingFactory { @Override public Marshaller getMarshaller() { return marshaller; } KPITimingDataBindingFactory(KPIMonitor monitor, DataBindingFactory factory,
                    String formatType); @Override Marshaller getMarshaller(); @Override FaultMarshaller getFaultMarshaller(); @Override UnMarshaller getUnMarshaller(); @Override FaultUnMarshaller getFaultUnMarshaller();  }### Answer:
@Test public void testGetMarshaller() { Marshaller marshaller = factory.getMarshaller(); marshaller.marshall(null, null, null, false); assertSame(marshaller, factory.getMarshaller()); expectMarshall(); }