104 lines
3.0 KiB
JavaScript
104 lines
3.0 KiB
JavaScript
import Map from '../../../../../../src/ol/Map.js';
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import TileLayer from '../../../../../../src/ol/layer/Tile.js';
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import TileWMS from '../../../../../../src/ol/source/TileWMS.js';
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import View from '../../../../../../src/ol/View.js';
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import XYZ from '../../../../../../src/ol/source/XYZ.js';
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import {fromLonLat} from '../../../../../../src/ol/proj.js';
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describe('ol.renderer.canvas.TileLayer', function () {
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describe('#prepareFrame', function () {
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let map, target, source, tile;
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beforeEach(function (done) {
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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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source = new TileWMS({
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url: 'spec/ol/data/osm-0-0-0.png',
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params: {LAYERS: 'foo', TIME: '0'},
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});
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source.once('tileloadend', function (e) {
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tile = e.tile;
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done();
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});
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map = new Map({
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target: target,
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layers: [
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new TileLayer({
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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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zoom: 0,
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center: [0, 0],
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}),
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});
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});
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afterEach(function () {
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map.setTarget(null);
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document.body.removeChild(target);
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});
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it('properly handles interim tiles', function (done) {
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const layer = map.getLayers().item(0);
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source.once('tileloadend', function (e) {
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expect(e.tile.inTransition()).to.be(false);
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done();
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});
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source.updateParams({TIME: '1'});
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map.renderSync();
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const tiles = layer.getRenderer().renderedTiles;
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expect(tiles.length).to.be(1);
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expect(tiles[0]).to.equal(tile);
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expect(tile.inTransition()).to.be(true);
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});
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});
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describe('#renderFrame', function () {
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let map, layer;
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beforeEach(function () {
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layer = new TileLayer({
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source: new XYZ({
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cacheSize: 1,
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url: 'bogus-url/{z}/{x}/{y}.png',
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}),
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});
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map = new Map({
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target: createMapDiv(100, 100),
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layers: [layer],
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view: new View({
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center: fromLonLat([-122.416667, 37.783333]),
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zoom: 5,
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}),
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});
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});
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afterEach(function () {
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disposeMap(map);
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});
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it("respects the source's zDirection setting", function (done) {
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layer.getSource().zDirection = 1;
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map.getView().setZoom(5.8); // would lead to z6 tile request with the default zDirection
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map.once('rendercomplete', function () {
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const tileCache = layer.getSource().tileCache;
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const keys = tileCache.getKeys();
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expect(keys.some((key) => key.startsWith('6/'))).to.be(false);
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done();
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});
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});
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it('image smoothing is re-enabled after rendering', function (done) {
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let context;
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layer.on('postrender', function (e) {
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context = e.context;
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context.imageSmoothingEnabled = false;
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});
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map.on('postrender', function () {
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expect(context.imageSmoothingEnabled).to.be(true);
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done();
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});
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});
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});
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});
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