79 lines
2.4 KiB
JavaScript
79 lines
2.4 KiB
JavaScript
goog.provide('ol.test.source.TileJSON');
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describe('ol.source.TileJSON', function() {
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describe('tileUrlFunction', function() {
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var source, tileGrid;
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beforeEach(function(done) {
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var googNetJsonp = goog.net.Jsonp;
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// mock goog.net.Jsonp (used in the ol.source.TileJSON constructor)
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goog.net.Jsonp = function() {
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this.send = function() {
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var callback = arguments[1];
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var client = new XMLHttpRequest();
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client.open('GET', 'spec/ol/data/tilejson.json', true);
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client.onload = function() {
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callback(JSON.parse(client.responseText));
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};
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client.send();
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};
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};
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source = new ol.source.TileJSON({
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url: 'http://api.tiles.mapbox.com/v3/mapbox.geography-class.jsonp'
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});
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goog.net.Jsonp = googNetJsonp;
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var key = source.on('change', function() {
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if (source.getState() === 'ready') {
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source.unByKey(key);
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tileGrid = source.getTileGrid();
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done();
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}
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});
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});
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it('uses the correct tile coordinates', function() {
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var coordinate = [829330.2064098881, 5933916.615134273];
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var regex = /\/([0-9]*\/[0-9]*\/[0-9]*)\.png$/;
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var tileUrl;
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tileUrl = source.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 0));
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expect(tileUrl.match(regex)[1]).to.eql('0/0/0');
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tileUrl = source.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 1));
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expect(tileUrl.match(regex)[1]).to.eql('1/1/0');
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tileUrl = source.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 2));
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expect(tileUrl.match(regex)[1]).to.eql('2/2/1');
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tileUrl = source.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 3));
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expect(tileUrl.match(regex)[1]).to.eql('3/4/2');
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tileUrl = source.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 4));
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expect(tileUrl.match(regex)[1]).to.eql('4/8/5');
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tileUrl = source.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 5));
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expect(tileUrl.match(regex)[1]).to.eql('5/16/11');
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tileUrl = source.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 6));
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expect(tileUrl.match(regex)[1]).to.eql('6/33/22');
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});
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});
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});
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goog.require('goog.net.Jsonp');
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goog.require('ol.source.TileJSON');
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