@Before public void loadData(){
  featureData=SimpleFeatureData.load(Stream.of(tuple(1,1,1.0),tuple(2,1,1.0),tuple(3,2,1.0)));
  preferences=SimplePreferenceData.load(Stream.of(tuple(1,1,1.0),tuple(1,2,1.0),tuple(2,1,1.0),tuple(2,2,1.0),tuple(2,3,1.0)));
}

@ Before public void loadData ( ) { featureData = SimpleFeatureData . load ( Stream . of ( tuple ( 1 , 1 , 1.0 ) , tuple ( 2 , 1 , 1.0 ) , tuple ( 3 , 2 , 1.0 ) ) ) ; preferences = SimplePreferenceData . load ( Stream . of ( tuple ( 1 , 1 , 1.0 ) , tuple ( 1 , 2 , 1.0 ) , tuple ( 2 , 1 , 1.0 ) , tuple ( 2 , 2 , 1.0 ) , tuple ( 2 , 3 , 1.0 ) ) ) ; }
loads some mock data for test .
