### Question:
DetectLastRowMeta extends BaseStepMeta implements StepMetaInterface { public TransformationType[] getSupportedTransformationTypes() { return new TransformationType[] { TransformationType.Normal, }; }  String getResultFieldName(); void setResultFieldName( String resultfieldname ); void loadXML( Node stepnode, List<DatabaseMeta> databases, IMetaStore metaStore ); Object clone(); void setDefault(); void getFields( RowMetaInterface row, String name, RowMetaInterface[] info, StepMeta nextStep,
    VariableSpace space, Repository repository, IMetaStore metaStore ); String getXML(); void readRep( Repository rep, IMetaStore metaStore, ObjectId id_step, List<DatabaseMeta> databases ); void saveRep( Repository rep, IMetaStore metaStore, ObjectId id_transformation, ObjectId id_step ); void check( List<CheckResultInterface> remarks, TransMeta transMeta, StepMeta stepMeta,
    RowMetaInterface prev, String[] input, String[] output, RowMetaInterface info, VariableSpace space,
    Repository repository, IMetaStore metaStore ); StepInterface getStep( StepMeta stepMeta, StepDataInterface stepDataInterface, int cnr,
    TransMeta transMeta, Trans trans ); StepDataInterface getStepData(); TransformationType[] getSupportedTransformationTypes();  }### Answer:
@Test public void testSupportedTransformationTypes() { DetectLastRowMeta meta = new DetectLastRowMeta(); assertEquals( 1, meta.getSupportedTransformationTypes().length ); assertEquals( TransformationType.Normal, meta.getSupportedTransformationTypes()[0] ); }