52 lines
1.5 KiB
JavaScript
52 lines
1.5 KiB
JavaScript
import DataTile from '../../../../src/ol/DataTile.js';
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import TileState from '../../../../src/ol/TileState.js';
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describe('ol.DataTile', function () {
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/** @type {Promise<import('../../../../src/ol/DataTile.js').Data} */
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let loader;
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beforeEach(function () {
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loader = function () {
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return new Promise((resolve) => {
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const canvas = document.createElement('canvas');
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canvas.width = 256;
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canvas.height = 256;
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const context = canvas.getContext('2d');
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context.fillStyle = 'red';
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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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describe('constructor', function () {
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it('sets options', function () {
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const tileCoord = [0, 0, 0];
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const tile = new DataTile({
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tileCoord: tileCoord,
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loader: loader,
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transition: 200,
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});
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expect(tile.tileCoord).to.equal(tileCoord);
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expect(tile.transition_).to.be(200);
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expect(tile.loader_).to.equal(loader);
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});
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});
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describe('#load()', function () {
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it('handles loading states correctly', function (done) {
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const tileCoord = [0, 0, 0];
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const tile = new DataTile({
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tileCoord: tileCoord,
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loader: loader,
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});
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expect(tile.getState()).to.be(TileState.IDLE);
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tile.load();
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expect(tile.getState()).to.be(TileState.LOADING);
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setTimeout(() => {
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expect(tile.getState()).to.be(TileState.LOADED);
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done();
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}, 16);
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});
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});
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});
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