new_contents: # Best Tile
  assert_has_feature(
      16, 10484, 25339, 'buildings',
      {'id': 103383621})
  
  # Miraloma School
  assert_has_feature(
      16, 10476, 25339, 'buildings',
      {'id': 338881092})
  
  # Tiny individual building (way_area = 5.4 sq.m.)
  assert_has_feature(
      16, 10474, 25343, 'buildings',
      {'id': 278410540, 'min_zoom': 17})
  
subject: Add tests.