mirror of
https://github.com/mapbox/vector-tile-js.git
synced 2026-01-25 14:08:34 +00:00
80 lines
3.0 KiB
JavaScript
80 lines
3.0 KiB
JavaScript
var test = require('tape'),
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fs = require('fs'),
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Protobuf = require('pbf'),
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VectorTile = require('..').VectorTile,
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VectorTileLayer = require('..').VectorTileLayer,
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VectorTileFeature = require('..').VectorTileFeature;
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test('parsing vector tiles', function(t) {
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var data = fs.readFileSync(__dirname + '/fixtures/14-8801-5371.vector.pbf');
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t.test('should have all layers', function(t) {
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var tile = new VectorTile(new Protobuf(data));
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t.deepEqual(Object.keys(tile.layers), [
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'landuse', 'waterway', 'water', 'barrier_line', 'building',
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'landuse_overlay', 'tunnel', 'road', 'bridge', 'place_label',
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'water_label', 'poi_label', 'road_label', 'waterway_label' ]);
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t.end();
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});
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t.test('should extract the tags of a feature', function(t) {
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var tile = new VectorTile(new Protobuf(data));
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t.equal(tile.layers.poi_label.length, 558);
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var park = tile.layers.poi_label.feature(11);
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t.deepEqual(park.bbox(), [ 3898, 1731, 3898, 1731 ]);
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t.throws(function() {
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var park = tile.layers.poi_label.feature(1e9);
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}, 'throws on reading a feature out of bounds');
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t.equal(park.properties.name, 'Mauerpark');
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t.equal(park.properties.type, 'Park');
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// Check point geometry
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t.deepEqual(park.loadGeometry(), [ [ { x: 3898, y: 1731 } ] ]);
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// Check line geometry
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t.deepEqual(tile.layers.road.feature(656).loadGeometry(), [ [ { x: 1988, y: 306 }, { x: 1808, y: 321 }, { x: 1506, y: 347 } ] ]);
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t.end();
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});
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t.test('changing first point of a polygon should not change last point', function(t) {
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var tile = new VectorTile(new Protobuf(data));
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var building = tile.layers.building.feature(0).loadGeometry();
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t.deepEqual(building, [ [ { x: 2039, y: -32 }, { x: 2035, y: -31 }, { x: 2032, y: -31 }, { x: 2032, y: -32 }, { x: 2039, y: -32 } ] ]);
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building[0][0].x = 1;
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building[0][0].y = 2;
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building[0][1].x = 3;
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building[0][1].y = 4;
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t.deepEqual(building, [ [ { x: 1, y: 2 }, { x: 3, y: 4 }, { x: 2032, y: -31 }, { x: 2032, y: -32 }, { x: 2039, y: -32 } ] ]);
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t.end();
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});
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});
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test('VectorTileLayer', function(t) {
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var emptyLayer = new VectorTileLayer(new Protobuf(new Buffer([])));
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t.ok(emptyLayer, 'can be created with no values');
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t.end();
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});
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test('VectorTileFeature', function(t) {
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var emptyFeature = new VectorTileFeature(new Protobuf(new Buffer([])));
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t.ok(emptyFeature, 'can be created with no values');
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t.ok(Array.isArray(VectorTileFeature.types));
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t.deepEqual(VectorTileFeature.types, ['Unknown', 'Point', 'LineString', 'Polygon']);
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t.end();
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});
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test('https://github.com/mapbox/vector-tile-js/issues/15', function(t) {
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var data = fs.readFileSync(__dirname + '/fixtures/lots-of-tags.vector.pbf');
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var tile = new VectorTile(new Protobuf(data));
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t.ok(tile.layers["stuttgart-rails"].feature(0));
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t.end();
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});
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