119 lines
3.5 KiB
JavaScript
119 lines
3.5 KiB
JavaScript
import Static from '../../../../../src/ol/source/ImageStatic.js';
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import {get as getProjection} from '../../../../../src/ol/proj.js';
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describe('ol/source/ImageStatic', function () {
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let extent, pixelRatio, projection, resolution;
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beforeEach(function () {
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extent = [
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-13637278.73946974, 4543799.13271362, -13617443.330629736,
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4553927.038961405,
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];
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pixelRatio = 1;
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projection = getProjection('EPSG:3857');
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resolution = 38;
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});
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describe('#getInterpolate()', function () {
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it('is true by default', function () {
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const source = new Static({});
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expect(source.getInterpolate()).to.be(true);
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});
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it('is false if constructed with interpolate: false', function () {
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const source = new Static({interpolate: false});
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expect(source.getInterpolate()).to.be(false);
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});
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});
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describe('#getImage', function () {
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it('scales image height to fit imageExtent', function (done) {
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const source = new Static({
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url: 'spec/ol/source/images/12-655-1583.png',
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imageExtent: [
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-13629027.891360067, 4539747.983913189, -13619243.951739565,
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4559315.863154193,
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],
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projection: projection,
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});
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const image = source.getImage(extent, resolution, pixelRatio, projection);
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source.on('imageloadend', function (event) {
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expect(image.getImage().width).to.be(256);
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expect(image.getImage().height).to.be(512);
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done();
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});
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image.load();
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});
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it('scales image width to fit imageExtent', function (done) {
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const source = new Static({
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url: 'spec/ol/source/images/12-655-1583.png',
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imageExtent: [
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-13629027.891360067, 4539747.983913189, -13609460.012119063,
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4549531.923533691,
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],
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projection: projection,
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});
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const image = source.getImage(extent, resolution, pixelRatio, projection);
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source.on('imageloadend', function (event) {
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expect(image.getImage().width).to.be(512);
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expect(image.getImage().height).to.be(256);
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done();
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});
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image.load();
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});
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it('respects imageSize', function (done) {
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const source = new Static({
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url: 'spec/ol/source/images/12-655-1583.png',
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imageExtent: [
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-13629027.891360067, 4539747.983913189, -13619243.951739565,
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4559315.863154193,
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],
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imageSize: [254, 254],
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projection: projection,
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});
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const image = source.getImage(extent, resolution, pixelRatio, projection);
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source.on('imageloadend', function (event) {
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expect(image.getImage().width).to.be(254);
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expect(image.getImage().height).to.be(508);
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done();
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});
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image.load();
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});
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it('triggers image load events', function (done) {
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const source = new Static({
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url: 'spec/ol/source/images/12-655-1583.png',
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imageExtent: [
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-13629027.891360067, 4539747.983913189, -13619243.951739565,
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4549531.923533691,
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],
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projection: projection,
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});
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const imageloadstart = sinon.spy();
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const imageloaderror = sinon.spy();
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source.on('imageloadstart', imageloadstart);
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source.on('imageloaderror', imageloaderror);
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source.on('imageloadend', function (event) {
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expect(imageloadstart.callCount).to.be(1);
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expect(imageloaderror.callCount).to.be(0);
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done();
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});
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const image = source.getImage(extent, resolution, pixelRatio, projection);
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image.load();
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});
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});
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});
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