183 lines
5.0 KiB
JavaScript
183 lines
5.0 KiB
JavaScript
goog.provide('ol.test.source.XYZ');
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describe('ol.source.XYZ', function() {
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describe('constructor', function() {
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it('can be constructed with a custom tile grid', function() {
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var tileGrid = ol.tilegrid.createXYZ();
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var tileSource = new ol.source.XYZ({
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tileGrid: tileGrid
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});
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expect(tileSource.getTileGrid()).to.be(tileGrid);
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});
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it('can be constructed with a custom tile size', function() {
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var tileSource = new ol.source.XYZ({
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tileSize: 512
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});
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expect(tileSource.getTileGrid().getTileSize(0)).to.be(512);
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});
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it('can be constructed with a custom min zoom', function() {
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var tileSource = new ol.source.XYZ({
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minZoom: 2
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});
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expect(tileSource.getTileGrid().getMinZoom()).to.be(2);
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});
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});
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describe('tileUrlFunction', function() {
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var xyzTileSource, tileGrid;
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beforeEach(function() {
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xyzTileSource = new ol.source.XYZ({
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maxZoom: 6,
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url: '{z}/{x}/{y}'
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});
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tileGrid = xyzTileSource.getTileGrid();
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});
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it('returns the expected URL', function() {
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var coordinate = [829330.2064098881, 5933916.615134273];
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var tileUrl;
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tileUrl = xyzTileSource.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 0));
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expect(tileUrl).to.eql('0/0/0');
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tileUrl = xyzTileSource.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 1));
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expect(tileUrl).to.eql('1/1/0');
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tileUrl = xyzTileSource.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 2));
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expect(tileUrl).to.eql('2/2/1');
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tileUrl = xyzTileSource.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 3));
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expect(tileUrl).to.eql('3/4/2');
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tileUrl = xyzTileSource.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 4));
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expect(tileUrl).to.eql('4/8/5');
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tileUrl = xyzTileSource.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 5));
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expect(tileUrl).to.eql('5/16/11');
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tileUrl = xyzTileSource.tileUrlFunction(
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tileGrid.getTileCoordForCoordAndZ(coordinate, 6));
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expect(tileUrl).to.eql('6/33/22');
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});
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describe('wrap x', function() {
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it('returns the expected URL', function() {
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var projection = xyzTileSource.getProjection();
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var tileUrl = xyzTileSource.tileUrlFunction(
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xyzTileSource.getTileCoordForTileUrlFunction(
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[6, -31, -23], projection));
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expect(tileUrl).to.eql('6/33/22');
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tileUrl = xyzTileSource.tileUrlFunction(
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xyzTileSource.getTileCoordForTileUrlFunction(
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[6, 33, -23], projection));
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expect(tileUrl).to.eql('6/33/22');
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tileUrl = xyzTileSource.tileUrlFunction(
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xyzTileSource.getTileCoordForTileUrlFunction(
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[6, 97, -23], projection));
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expect(tileUrl).to.eql('6/33/22');
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});
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});
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describe('crop y', function() {
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it('returns the expected URL', function() {
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var projection = xyzTileSource.getProjection();
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var tileUrl = xyzTileSource.tileUrlFunction(
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xyzTileSource.getTileCoordForTileUrlFunction(
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[6, 33, 0], projection));
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expect(tileUrl).to.be(undefined);
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tileUrl = xyzTileSource.tileUrlFunction(
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xyzTileSource.getTileCoordForTileUrlFunction(
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[6, 33, -23], projection));
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expect(tileUrl).to.eql('6/33/22');
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tileUrl = xyzTileSource.tileUrlFunction(
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xyzTileSource.getTileCoordForTileUrlFunction(
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[6, 33, -65], projection));
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expect(tileUrl).to.be(undefined);
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});
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});
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});
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describe('#getUrls', function() {
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var sourceOptions;
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var source;
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var url = 'http://geo.nls.uk/maps/towns/glasgow1857/{z}/{x}/{-y}.png';
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beforeEach(function() {
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sourceOptions = {
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projection: 'EPSG:4326'
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};
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});
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describe('using a "url" option', function() {
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beforeEach(function() {
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sourceOptions.url = url;
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source = new ol.source.XYZ(sourceOptions);
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});
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it('returns the XYZ URL', function() {
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var urls = source.getUrls();
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expect(urls).to.be.eql([url]);
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});
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});
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describe('using a "urls" option', function() {
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beforeEach(function() {
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sourceOptions.urls = ['some_xyz_url1', 'some_xyz_url2'];
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source = new ol.source.XYZ(sourceOptions);
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});
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it('returns the XYZ URLs', function() {
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var urls = source.getUrls();
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expect(urls).to.be.eql(['some_xyz_url1', 'some_xyz_url2']);
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});
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});
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describe('using a "tileUrlFunction"', function() {
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beforeEach(function() {
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sourceOptions.tileUrlFunction = function() {
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return 'some_xyz_url';
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};
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source = new ol.source.XYZ(sourceOptions);
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});
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it('returns null', function() {
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var urls = source.getUrls();
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expect(urls).to.be(null);
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});
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});
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});
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});
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goog.require('ol.source.XYZ');
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