Files
openlayers/test/spec/ol/source/xyzsource.test.js
Andreas Hocevar a116878a57 Allow extents to restrict tile ranges requested from the server
The addition of full extent tile ranges also allows us to simplify wrapX
handling for tile layers. By limiting wrapX to true and false as possible
values, we can remove a lot of guessing logic.
2015-05-05 18:52:33 +02:00

114 lines
3.3 KiB
JavaScript

goog.provide('ol.test.source.XYZ');
describe('ol.source.XYZ', function() {
describe('constructor', function() {
it('can be constructed with a custom tile size', function() {
var tileSource = new ol.source.XYZ({
tileSize: 512
});
expect(tileSource.getTileGrid().getTileSize(0)).to.be(512);
});
});
describe('tileUrlFunction', function() {
var xyzTileSource, tileGrid;
beforeEach(function() {
xyzTileSource = new ol.source.XYZ({
maxZoom: 6,
url: '{z}/{x}/{y}'
});
tileGrid = xyzTileSource.getTileGrid();
});
it('return the expected URL', function() {
var coordinate = [829330.2064098881, 5933916.615134273];
var tileUrl;
tileUrl = xyzTileSource.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 0));
expect(tileUrl).to.eql('0/0/0');
tileUrl = xyzTileSource.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 1));
expect(tileUrl).to.eql('1/1/0');
tileUrl = xyzTileSource.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 2));
expect(tileUrl).to.eql('2/2/1');
tileUrl = xyzTileSource.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 3));
expect(tileUrl).to.eql('3/4/2');
tileUrl = xyzTileSource.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 4));
expect(tileUrl).to.eql('4/8/5');
tileUrl = xyzTileSource.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 5));
expect(tileUrl).to.eql('5/16/11');
tileUrl = xyzTileSource.tileUrlFunction(
tileGrid.getTileCoordForCoordAndZ(coordinate, 6));
expect(tileUrl).to.eql('6/33/22');
});
describe('wrap x', function() {
it('returns the expected URL', function() {
var projection = xyzTileSource.getProjection();
var tileUrl = xyzTileSource.tileUrlFunction(
xyzTileSource.getTileCoordForTileUrlFunction(
[6, -31, 41], projection));
expect(tileUrl).to.eql('6/33/22');
tileUrl = xyzTileSource.tileUrlFunction(
xyzTileSource.getTileCoordForTileUrlFunction(
[6, 33, 41], projection));
expect(tileUrl).to.eql('6/33/22');
tileUrl = xyzTileSource.tileUrlFunction(
xyzTileSource.getTileCoordForTileUrlFunction(
[6, 97, 41], projection));
expect(tileUrl).to.eql('6/33/22');
});
});
describe('crop y', function() {
it('returns the expected URL', function() {
var projection = xyzTileSource.getProjection();
var tileUrl = xyzTileSource.tileUrlFunction(
xyzTileSource.getTileCoordForTileUrlFunction(
[6, 33, 150], projection));
expect(tileUrl).to.be(undefined);
tileUrl = xyzTileSource.tileUrlFunction(
xyzTileSource.getTileCoordForTileUrlFunction(
[6, 33, 41], projection));
expect(tileUrl).to.eql('6/33/22');
tileUrl = xyzTileSource.tileUrlFunction(
xyzTileSource.getTileCoordForTileUrlFunction(
[6, 33, -23], projection));
expect(tileUrl).to.be(undefined);
});
});
});
});
goog.require('ol.TileCoord');
goog.require('ol.source.XYZ');