@Override
      public List<VectorTile.Feature> postProcessLayerFeatures(String layer, int zoom, List<VectorTile.Feature> items) {
        return postProcessLayersToo ? items.reversed() : items;
      }
In-memory tests with fake data and profiles to ensure all features work end-to-end.
planetiler-core/src/test/java/com/onthegomap/planetiler/PlanetilerTests.java