299 lines
9.2 KiB
JavaScript
299 lines
9.2 KiB
JavaScript
import Map from '../../../../src/ol/Map.js';
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import View from '../../../../src/ol/View.js';
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import VectorRenderTile from '../../../../src/ol/VectorRenderTile.js';
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import VectorTile from '../../../../src/ol/VectorTile.js';
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import GeoJSON from '../../../../src/ol/format/GeoJSON.js';
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import MVT from '../../../../src/ol/format/MVT.js';
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import VectorTileLayer from '../../../../src/ol/layer/VectorTile.js';
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import {get as getProjection, get} from '../../../../src/ol/proj.js';
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import VectorTileSource from '../../../../src/ol/source/VectorTile.js';
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import {createXYZ} from '../../../../src/ol/tilegrid.js';
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import TileGrid from '../../../../src/ol/tilegrid/TileGrid.js';
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import {listen, unlistenByKey} from '../../../../src/ol/events.js';
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import TileState from '../../../../src/ol/TileState.js';
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describe('ol.source.VectorTile', function() {
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let format, source;
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beforeEach(function() {
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format = new MVT();
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source = new VectorTileSource({
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format: format,
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url: 'spec/ol/data/{z}-{x}-{y}.vector.pbf'
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});
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});
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describe('constructor', function() {
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it('sets the format on the instance', function() {
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expect(source.format_).to.equal(format);
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});
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it('sets the default zDirection on the instance', function() {
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expect(source.zDirection).to.be(1);
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});
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it('uses ol.VectorTile as default tileClass', function() {
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expect(source.tileClass).to.equal(VectorTile);
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});
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it('creates a 512 XYZ tilegrid by default', function() {
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const tileGrid = createXYZ({tileSize: 512});
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expect(source.tileGrid.tileSize_).to.equal(tileGrid.tileSize_);
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expect(source.tileGrid.extent_).to.equal(tileGrid.extent_);
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});
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});
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describe('#getTile()', function() {
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it('creates a tile with the correct tile class', function() {
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const tile = source.getTile(0, 0, 0, 1, getProjection('EPSG:3857'));
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expect(tile).to.be.a(VectorRenderTile);
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expect(tile.getTileCoord()).to.eql([0, 0, 0]);
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expect(source.getTile(0, 0, 0, 1, getProjection('EPSG:3857')))
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.to.equal(tile);
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});
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it('loads source tiles', function(done) {
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const source = new VectorTileSource({
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format: new GeoJSON(),
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url: 'spec/ol/data/point.json'
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});
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const tile = source.getTile(0, 0, 0, 1, source.getProjection());
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tile.load();
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const key = listen(tile, 'change', function(e) {
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if (tile.getState() === TileState.LOADED) {
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const sourceTile = source.getSourceTiles(1, source.getProjection(), tile)[0];
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expect(sourceTile.getFeatures().length).to.be.greaterThan(0);
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unlistenByKey(key);
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done();
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}
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});
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});
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it('handles empty tiles', function() {
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const source = new VectorTileSource({
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format: new GeoJSON(),
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url: ''
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});
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const tile = source.getTile(0, 0, 0, 1, source.getProjection());
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expect(tile.getState()).to.be(TileState.EMPTY);
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});
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it('creates empty tiles outside the source extent', function() {
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const fullExtent = get('EPSG:3857').getExtent();
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const source = new VectorTileSource({
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extent: [fullExtent[0], fullExtent[1], 0, 0]
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});
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const tile = source.getTile(1, 1, 1, 1, source.getProjection());
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expect(tile.getState()).to.be(TileState.EMPTY);
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});
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it('creates empty tiles outside the world extent when wrapX === false', function() {
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const source = new VectorTileSource({
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wrapX: false
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});
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const tile = source.getTile(0, -1, 0, 1, source.getProjection());
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expect(tile.getState()).to.be(TileState.EMPTY);
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});
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it('creates empty tiles when the tileUrlFunction returns undefined', function() {
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const source = new VectorTileSource({
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tileUrlFunction: function(tileCoord) {
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return;
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}
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});
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const tile = source.getTile(1, 1, 1, 1, source.getProjection());
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expect(tile.getState()).to.be(TileState.EMPTY);
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});
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it('creates non-empty tiles outside the world extent when wrapX === true', function() {
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const source = new VectorTileSource({
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url: '{z}/{x}/{y}.pbf'
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});
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const tile = source.getTile(0, -1, 0, 1, source.getProjection());
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expect(tile.getState()).to.be(TileState.IDLE);
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});
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it('creates non-empty tiles for overzoomed resolutions', function() {
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const source = new VectorTileSource({
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url: '{z}/{x}/{y}.pbf',
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tileLoadFunction: function(tile) {
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tile.setLoader(function() {});
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},
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maxZoom: 16
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});
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const tile = source.getTile(24, 9119385, 5820434, 1, source.getProjection());
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tile.load();
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expect(tile.getState()).to.be(TileState.LOADING);
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});
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it('creates new tile when source key changes', function() {
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source.setKey('key1');
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const tile1 = source.getTile(0, 0, 0, 1, getProjection('EPSG:3857'));
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const tile2 = source.getTile(0, 0, 0, 1, getProjection('EPSG:3857'));
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source.setKey('key2');
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const tile3 = source.getTile(0, 0, 0, 1, getProjection('EPSG:3857'));
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expect(tile1).to.equal(tile2);
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expect(tile1.key).to.be('key1');
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expect(tile3.key).to.be('key2');
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});
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});
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describe('#getTileGridForProjection', function() {
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it('creates a tile grid with the source tile grid\'s tile size', function() {
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const tileGrid = source.getTileGridForProjection(getProjection('EPSG:3857'));
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expect(tileGrid.getTileSize(0)).to.be(512);
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});
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});
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describe('Tile load events', function() {
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it('triggers tileloadstart and tileloadend with ol.VectorTile', function(done) {
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const tile = source.getTile(14, 8938, 5680, 1, getProjection('EPSG:3857'));
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let started = false;
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source.on('tileloadstart', function() {
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started = true;
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});
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source.on('tileloadend', function(e) {
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expect(started).to.be(true);
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expect(e.tile).to.be.a(VectorTile);
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expect(e.tile.getFeatures().length).to.be(1327);
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done();
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});
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tile.load();
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});
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});
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describe('different source and render tile grids', function() {
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let source, map, loaded, requested, target;
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beforeEach(function() {
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loaded = [];
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requested = 0;
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function tileUrlFunction(tileCoord) {
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++requested;
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if (tileCoord.toString() == '5,13,-29') {
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return tileCoord.join('/');
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}
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}
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function tileLoadFunction(tile, src) {
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tile.setLoader(function() {});
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loaded.push(src);
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}
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const extent = [665584.2026596286, 7033250.839875697, 667162.0221431496, 7035280.378636755];
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source = new VectorTileSource({
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tileGrid: new TileGrid({
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origin: [218128, 6126002],
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resolutions: [4096, 2048, 1024, 512, 256, 128, 64, 32, 16, 8, 4, 2, 1, 0.5]
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}),
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tileUrlFunction: tileUrlFunction,
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tileLoadFunction: tileLoadFunction
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});
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target = document.createElement('div');
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target.style.width = '100px';
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target.style.height = '100px';
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document.body.appendChild(target);
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map = new Map({
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layers: [
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new VectorTileLayer({
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extent: extent,
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source: source
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})
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],
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target: target,
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view: new View({
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zoom: 11,
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center: [666373.1624999996, 7034265.3572]
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})
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});
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});
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afterEach(function() {
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document.body.removeChild(target);
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});
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it('loads available tiles', function(done) {
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map.renderSync();
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setTimeout(function() {
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expect(requested).to.be.greaterThan(1);
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expect(loaded).to.eql(['5/13/-29']);
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done();
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}, 0);
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});
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});
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it('does not fill up the tile queue', function(done) {
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const target = document.createElement('div');
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target.style.width = '100px';
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target.style.height = '100px';
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document.body.appendChild(target);
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const urls = [
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'spec/ol/data/14-8938-5680.vector.pbf?num=0&coord={z},{x},{y}',
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'spec/ol/data/14-8938-5680.vector.pbf?num=1&coord={z},{x},{y}',
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'spec/ol/data/14-8938-5680.vector.pbf?num=2&coord={z},{x},{y}',
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'spec/ol/data/14-8938-5680.vector.pbf?num=3&coord={z},{x},{y}'
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];
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const source = new VectorTileSource({
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format: new MVT(),
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url: urls[0]
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});
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const map = new Map({
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target: target,
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layers: [
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new VectorTileLayer({
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source: source
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})
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],
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view: new View({
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center: [0, 0],
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zoom: 0
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})
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});
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map.renderSync();
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const max = urls.length + 3;
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let count = 0;
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let tile = source.getTile(0, 0, 0, 1, map.getView().getProjection());
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tile.addEventListener('change', function onTileChange(e) {
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if (e.target.getState() !== TileState.LOADED && !e.target.hifi) {
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return;
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}
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e.target.removeEventListener('change', onTileChange);
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map.once('rendercomplete', function() {
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expect(map.tileQueue_.getTilesLoading()).to.be(0);
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++count;
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if (count === max) {
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document.body.removeChild(target);
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map.dispose();
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done();
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return;
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}
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source.setUrl(urls[count % urls.length]);
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tile = source.getTile(0, 0, 0, 1, map.getView().getProjection());
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tile.addEventListener('change', onTileChange);
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});
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});
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});
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});
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