### Question:
DummyStepAnalyzer extends StepAnalyzer<DummyTransMeta> { @Override protected Set<StepField> getUsedFields( DummyTransMeta meta ) { return null; }  @Override Set<Class<? extends BaseStepMeta>> getSupportedSteps();  }### Answer:
@Test public void testGetUsedFields() throws Exception { assertNull( analyzer.getUsedFields( meta ) ); }