### Question:
ExcelInputStepAnalyzer extends ExternalResourceStepAnalyzer<ExcelInputMeta> { @Override public boolean isInput() { return true; }  @Override Set<Class<? extends BaseStepMeta>> getSupportedSteps(); @Override IMetaverseNode createResourceNode( IExternalResourceInfo resource ); @Override String getResourceInputNodeType(); @Override String getResourceOutputNodeType(); @Override boolean isOutput(); @Override boolean isInput(); @Override IClonableStepAnalyzer newInstance();  }### Answer:
@Test public void testIsInput() throws Exception { assertTrue( analyzer.isInput() ); }