openlayers
Version:
Build tools and sources for developing OpenLayers based mapping applications
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JavaScript
goog.provide('ol.test.source.TileJSON');
goog.require('ol.source.Source');
goog.require('ol.source.TileJSON');
goog.require('ol.Observable');
describe('ol.source.TileJSON', function() {
describe('constructor', function() {
it('returns a tileJSON source', function() {
var source = new ol.source.TileJSON({
url: 'spec/ol/data/tilejson.json'
});
expect(source).to.be.a(ol.source.Source);
expect(source).to.be.a(ol.source.TileJSON);
});
});
describe('#getTileJSON', function() {
it('parses the tilejson file', function() {
var source = new ol.source.TileJSON({
url: 'spec/ol/data/tilejson.json'
});
source.on('change', function() {
if (source.getState() === 'ready') {
var tileJSON = source.getTileJSON();
expect(tileJSON.name).to.eql('Geography Class');
expect(tileJSON.version).to.eql('1.0.0');
}
});
});
});
describe('#getState', function() {
it('returns error on HTTP 404', function() {
var source = new ol.source.TileJSON({
url: 'invalid.jsonp'
});
source.on('change', function() {
expect(source.getState()).to.eql('error');
expect(source.getTileJSON()).to.eql(null);
});
});
it('returns error on CORS issues', function() {
var source = new ol.source.TileJSON({
url: 'http://example.com'
});
source.on('change', function() {
expect(source.getState()).to.eql('error');
expect(source.getTileJSON()).to.eql(null);
});
});
it('returns error on JSON parsing issues', function() {
var source = new ol.source.TileJSON({
url: '/'
});
source.on('change', function() {
expect(source.getState()).to.eql('error');
expect(source.getTileJSON()).to.eql(null);
});
});
});
describe('tileUrlFunction', function() {
var source, tileGrid;
beforeEach(function(done) {
source = new ol.source.TileJSON({
url: 'spec/ol/data/tilejson.json'
});
var key = source.on('change', function() {
if (source.getState() === 'ready') {
ol.Observable.unByKey(key);
tileGrid = source.getTileGrid();
done();
}
});
});
it('uses the correct tile coordinates', function() {
var coordinate = [829330.2064098881, 5933916.615134273];
var regex = /\/([0-9]*\/[0-9]*\/[0-9]*)\.png$/;
var tileUrl;
tileUrl = source.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 0));
expect(tileUrl.match(regex)[1]).to.eql('0/0/0');
tileUrl = source.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 1));
expect(tileUrl.match(regex)[1]).to.eql('1/1/0');
tileUrl = source.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 2));
expect(tileUrl.match(regex)[1]).to.eql('2/2/1');
tileUrl = source.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 3));
expect(tileUrl.match(regex)[1]).to.eql('3/4/2');
tileUrl = source.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 4));
expect(tileUrl.match(regex)[1]).to.eql('4/8/5');
tileUrl = source.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 5));
expect(tileUrl.match(regex)[1]).to.eql('5/16/11');
tileUrl = source.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 6));
expect(tileUrl.match(regex)[1]).to.eql('6/33/22');
});
});
});