PointSet all = points.slice(0, points.featureCount());
assertEquals( all.featureCount(), points.featureCount() );
PointSet firstHalf = points.slice(0, 1);
assertEquals( firstHalf.featureCount(), 1 );
assertEquals( firstHalf.getFeature(0).getId(), "XYZ0001" );
PointSet lastHalf = points.slice(1, 2);
assertEquals( lastHalf.featureCount(), 1 );
assertEquals( lastHalf.getFeature(0).getId(), "XYZ0002" );