old_contents: var test = require('tape'),
      fs = require('fs'),
      VectorTile = require('..');
  
  test('parsing vector tiles', function(t) {
      var data = fs.readFileSync('./test/fixtures/14-8801-5371.vector.pbf');
  
      t.test('should have all layers', function(t) {
          var tile = new VectorTile(data);
  
          t.deepEqual(Object.keys(tile.layers), [
              'landuse', 'waterway', 'water', 'barrier_line', 'building',
              'landuse_overlay', 'tunnel', 'road', 'bridge', 'place_label',
              'water_label', 'poi_label', 'road_label', 'waterway_label' ]);
  
          t.end();
      });
  
      t.test('should extract the tags of a feature', function(t) {
          var tile = new VectorTile(data);
  
          t.equal(tile.layers.poi_label.length, 558);
  
          var park = tile.layers.poi_label.feature(11);
  
          t.equal(park.name, 'Mauerpark');
          t.equal(park.type, 'Park');
  
          // Check point geometry
          t.deepEqual(park.loadGeometry(), [ [ { x: 3898, y: 1731 } ] ]);
  
          // Check line geometry
          t.deepEqual(tile.layers.road.feature(656).loadGeometry(), [ [ { x: 1988, y: 306 }, { x: 1808, y: 321 }, { x: 1506, y: 347 } ] ]);
          t.end();
      });
  });
  
new_contents: var test = require('tape'),
      fs = require('fs'),
      VectorTile = require('..');
  
  test('parsing vector tiles', function(t) {
      var data = fs.readFileSync('./test/fixtures/14-8801-5371.vector.pbf');
  
      t.test('should have all layers', function(t) {
          var tile = new VectorTile(data);
  
          t.deepEqual(Object.keys(tile.layers), [
              'landuse', 'waterway', 'water', 'barrier_line', 'building',
              'landuse_overlay', 'tunnel', 'road', 'bridge', 'place_label',
              'water_label', 'poi_label', 'road_label', 'waterway_label' ]);
  
          t.end();
      });
  
      t.test('should extract the tags of a feature', function(t) {
          var tile = new VectorTile(data);
  
          t.equal(tile.layers.poi_label.length, 558);
  
          var park = tile.layers.poi_label.feature(11);
  
          t.deepEqual(park.bbox(), [ 3898, 1731, 3898, 1731 ]);
  
          t.throws(function() {
              var park = tile.layers.poi_label.feature(1e9);
          }, 'throws on reading a feature out of bounds');
  
          t.equal(park.name, 'Mauerpark');
          t.equal(park.type, 'Park');
  
          // Check point geometry
          t.deepEqual(park.loadGeometry(), [ [ { x: 3898, y: 1731 } ] ]);
  
          // Check line geometry
          t.deepEqual(tile.layers.road.feature(656).loadGeometry(), [ [ { x: 1988, y: 306 }, { x: 1808, y: 321 }, { x: 1506, y: 347 } ] ]);
          t.end();
      });
  });
  
subject: Improve test coverage