public List<Coordinate> z14CoordinatePixelList(double... coords) {
    return z14CoordinateList(DoubleStream.of(coords).map(c -> c / 256d).toArray());
  }
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