101 lines
3.2 KiB
JavaScript
101 lines
3.2 KiB
JavaScript
import DataTile from '../../../../../src/ol/DataTile.js';
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import DataTileSource from '../../../../../src/ol/source/DataTile.js';
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import ImageTile from '../../../../../src/ol/ImageTile.js';
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import TileState from '../../../../../src/ol/TileState.js';
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import TileTexture from '../../../../../src/ol/webgl/TileTexture.js';
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import WebGLArrayBuffer from '../../../../../src/ol/webgl/Buffer.js';
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import WebGLTileLayer from '../../../../../src/ol/layer/WebGLTile.js';
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import {EXTENT as EPSG3857_EXTENT} from '../../../../../src/ol/proj/epsg3857.js';
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import {createCanvasContext2D} from '../../../../../src/ol/dom.js';
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describe('ol/webgl/TileTexture', function () {
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/** @type {TileTexture} */
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let tileTexture;
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/** @type {import("../../../../../src/ol/renderer/webgl/TileLayer.js").default} */
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let renderer;
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beforeEach(function () {
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const layer = new WebGLTileLayer({
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source: new DataTileSource({
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loader(z, x, y) {
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return new Promise((resolve) => {
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const context = createCanvasContext2D(256, 256);
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context.fillStyle = `rgb(${z}, ${x % 255}, ${y % 255})`;
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context.fillRect(0, 0, 256, 256);
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resolve(context.getImageData(0, 0, 256, 256).data);
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});
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},
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}),
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});
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renderer = layer.createRenderer();
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renderer.prepareFrame({
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extent: EPSG3857_EXTENT,
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layerIndex: 0,
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layerStatesArray: [layer.getLayerState()],
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size: [256, 256],
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mapId: 'map-1',
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});
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tileTexture = new TileTexture(
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layer.getSource().getTile(3, 2, 1),
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layer.getSource().getTileGrid(),
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renderer.helper
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);
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});
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afterEach(() => {
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renderer.dispose();
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});
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it('constructor', function () {
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expect(tileTexture.tile.tileCoord).to.eql([3, 2, 1]);
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expect(tileTexture.coords).to.be.a(WebGLArrayBuffer);
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});
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it('handles data tiles', function (done) {
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const dataTile = tileTexture.tile;
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expect(tileTexture.loaded).to.be(false);
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expect(dataTile.getState()).to.be(TileState.IDLE);
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tileTexture.addEventListener('change', () => {
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if (dataTile.getState() === TileState.LOADED) {
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expect(tileTexture.loaded).to.be(true);
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done();
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}
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});
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dataTile.load();
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});
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it('handles image tiles', function () {
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const imageTile = new ImageTile([0, 0, 0], TileState.LOADED);
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tileTexture.setTile(imageTile);
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expect(tileTexture.loaded).to.be(true);
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});
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it('registers and unregisters change listener', function () {
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const tile = tileTexture.tile;
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expect(tile.getListeners('change').length).to.be(2);
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tileTexture.dispose();
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expect(tile.getListeners('change').length).to.be(1);
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});
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it('updates metadata and unregisters change listener when setting a different tile', function (done) {
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const tile = tileTexture.tile;
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expect(tile.getListeners('change').length).to.be(2);
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const differentTile = new DataTile({
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tileCoord: [1, 0, 1],
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loader(z, x, y) {
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return Promise.resolve(new Uint8Array(256 * 256 * 3));
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},
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});
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tileTexture.setTile(differentTile);
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expect(tile.getListeners('change').length).to.be(1);
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tileTexture.addEventListener('change', () => {
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expect(tileTexture.bandCount).to.be(3);
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done();
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});
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differentTile.load();
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});
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});
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