Files
openlayers/test/spec/ol/source/vectortile.test.js
2017-08-12 15:16:55 -06:00

74 lines
2.3 KiB
JavaScript

goog.provide('ol.test.source.VectorTile');
goog.require('ol.VectorImageTile');
goog.require('ol.format.MVT');
goog.require('ol.proj');
goog.require('ol.source.VectorTile');
goog.require('ol.tilegrid');
describe('ol.source.VectorTile', function() {
var format = new ol.format.MVT();
var source = new ol.source.VectorTile({
format: format,
tilePixelRatio: 8,
url: 'spec/ol/data/{z}-{x}-{y}.vector.pbf'
});
var tile;
describe('constructor', function() {
it('sets the format on the instance', function() {
expect(source.format_).to.equal(format);
});
it('uses ol.VectorTile as default tileClass', function() {
expect(source.tileClass).to.equal(ol.VectorTile);
});
it('creates a 512 XYZ tilegrid by default', function() {
var tileGrid = ol.tilegrid.createXYZ({tileSize: 512});
expect(source.tileGrid.tileSize_).to.equal(tileGrid.tileSize_);
expect(source.tileGrid.extent_).to.equal(tileGrid.extent_);
});
});
describe('#getTile()', function() {
it('creates a tile with the correct tile class', function() {
tile = source.getTile(0, 0, 0, 1, ol.proj.get('EPSG:3857'));
expect(tile).to.be.a(ol.VectorImageTile);
});
it('sets the correct tileCoord on the created tile', function() {
expect(tile.getTileCoord()).to.eql([0, 0, 0]);
});
it('fetches tile from cache when requested again', function() {
expect(source.getTile(0, 0, 0, 1, ol.proj.get('EPSG:3857')))
.to.equal(tile);
});
});
describe('#getTileGridForProjection', function() {
it('creates a tile grid with the source tile grid\'s tile size', function() {
var tileGrid = source.getTileGridForProjection(ol.proj.get('EPSG:3857'));
expect(tileGrid.getTileSize(0)).to.be(512);
});
});
describe('Tile load events', function() {
it('triggers tileloadstart and tileloadend with ol.VectorTile', function(done) {
tile = source.getTile(14, 8938, -5681, 1, ol.proj.get('EPSG:3857'));
var started = false;
source.on('tileloadstart', function() {
started = true;
});
source.on('tileloadend', function(e) {
expect(started).to.be(true);
expect(e.tile).to.be.a(ol.VectorTile);
expect(e.tile.getFeatures().length).to.be(1327);
done();
});
tile.load();
});
});
});