Files
openlayers/test/spec/ol/vectorrendertile.test.js
2020-01-05 00:05:24 +01:00

98 lines
3.0 KiB
JavaScript

import TileState from '../../../src/ol/TileState.js';
import {defaultLoadFunction} from '../../../src/ol/source/VectorTile.js';
import VectorTileSource from '../../../src/ol/source/VectorTile.js';
import {listen, unlistenByKey} from '../../../src/ol/events.js';
import GeoJSON from '../../../src/ol/format/GeoJSON.js';
import TileGrid from '../../../src/ol/tilegrid/TileGrid.js';
import EventType from '../../../src/ol/events/EventType.js';
describe('ol.VectorRenderTile', function() {
it('triggers "change" when previously failed source tiles are loaded', function(done) {
let sourceTile;
const source = new VectorTileSource({
format: new GeoJSON(),
url: 'spec/ol/data/unavailable.json',
tileLoadFunction: function(tile, url) {
sourceTile = tile;
defaultLoadFunction(tile, url);
}
});
const tile = source.getTile(0, 0, 0, 1, source.getProjection());
tile.load();
let calls = 0;
listen(tile, 'change', function(e) {
++calls;
if (calls === 1) {
expect(tile.getState()).to.be(TileState.LOADED);
expect(tile.hifi).to.be(false);
setTimeout(function() {
sourceTile.setState(TileState.LOADED);
expect(tile.hifi).to.be(true);
}, 0);
} else if (calls === 2) {
done();
}
});
});
it('sets LOADED state and hifi==false when source tiles fail to load', function(done) {
const source = new VectorTileSource({
format: new GeoJSON(),
url: 'spec/ol/data/unavailable.json'
});
const tile = source.getTile(0, 0, 0, 1, source.getProjection());
tile.load();
listen(tile, 'change', function(e) {
expect(tile.getState()).to.be(TileState.LOADED);
expect(tile.hifi).to.be(false);
done();
});
});
it('sets EMPTY state when tile has only empty source tiles', function() {
const source = new VectorTileSource({
format: new GeoJSON(),
url: ''
});
const tile = source.getTile(0, 0, 0, 1, source.getProjection());
tile.load();
expect(tile.getState()).to.be(TileState.EMPTY);
});
it('only loads tiles within the source tileGrid\'s extent', function(done) {
const url = 'spec/ol/data/point.json';
const source = new VectorTileSource({
projection: 'EPSG:4326',
format: new GeoJSON(),
tileGrid: new TileGrid({
resolutions: [0.02197265625, 0.010986328125, 0.0054931640625],
origin: [-180, 90],
extent: [-88, 35, -87, 36]
}),
tileUrlFunction: function(zxy) {
return url;
},
url: url
});
const tile = source.getTile(0, 0, 0, 1, source.getProjection());
tile.load();
const key = listen(tile, EventType.CHANGE, function() {
if (tile.getState() === TileState.LOADED) {
unlistenByKey(key);
const sourceTiles = source.getSourceTiles(1, source.getProjection(), tile);
expect(sourceTiles.length).to.be(1);
expect(sourceTiles[0].tileCoord).to.eql([0, 16, 9]);
done();
}
});
});
});