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openlayers/test/browser/spec/ol/tilecache.test.js
2021-04-28 09:23:33 -07:00

31 lines
888 B
JavaScript

import Tile from '../../../../src/ol/Tile.js';
import TileCache from '../../../../src/ol/TileCache.js';
import {getKey} from '../../../../src/ol/tilecoord.js';
describe('ol.TileCache', function () {
describe('#pruneExceptNewestZ()', function () {
it('gets rid of all entries that are not at the newest z', function () {
const tiles = [
new Tile([0, 0, 0]),
new Tile([1, 0, 0]),
new Tile([1, 1, 0]),
new Tile([2, 0, 0]),
new Tile([2, 1, 0]),
new Tile([2, 2, 0]),
new Tile([2, 3, 0]), // newest tile at z: 2
];
const cache = new TileCache();
sinon.spy(tiles[0], 'dispose');
tiles.forEach(function (tile) {
cache.set(getKey(tile.tileCoord), tile);
});
cache.pruneExceptNewestZ();
expect(cache.getKeys()).to.eql(['2/3/0', '2/2/0', '2/1/0', '2/0/0']);
});
});
});