Files
openlayers/test/spec/ol/source/imagestatic.test.js
Tim Schaub ad62739a6e Use blocked scoped variables
In addition to using const and let, this also upgrades our linter config and removes lint (mostly whitespace).
2018-01-12 00:50:30 -07:00

85 lines
2.5 KiB
JavaScript

import Static from '../../../../src/ol/source/ImageStatic.js';
import {get as getProjection} from '../../../../src/ol/proj.js';
describe('ol.source.ImageStatic', function() {
let extent, pixelRatio, projection, resolution;
beforeEach(function() {
extent = [
-13637278.73946974, 4543799.13271362,
-13617443.330629736, 4553927.038961405];
pixelRatio = 1;
projection = getProjection('EPSG:3857');
resolution = 38;
});
describe('#getImage', function() {
it('scales image to fit imageExtent', function(done) {
const source = new Static({
url: 'spec/ol/source/images/12-655-1583.png',
imageExtent: [
-13629027.891360067, 4539747.983913189,
-13619243.951739565, 4559315.863154193],
projection: projection
});
const image = source.getImage(extent, resolution, pixelRatio, projection);
source.on('imageloadend', function(event) {
expect(image.getImage().width).to.be(128);
expect(image.getImage().height).to.be(256);
done();
});
image.load();
});
it('respects imageSize', function(done) {
const source = new Static({
url: 'spec/ol/source/images/12-655-1583.png',
imageExtent: [
-13629027.891360067, 4539747.983913189,
-13619243.951739565, 4559315.863154193],
imageSize: [254, 254],
projection: projection
});
const image = source.getImage(extent, resolution, pixelRatio, projection);
source.on('imageloadend', function(event) {
expect(image.getImage().width).to.be(127);
expect(image.getImage().height).to.be(254);
done();
});
image.load();
});
it('triggers image load events', function(done) {
const source = new Static({
url: 'spec/ol/source/images/12-655-1583.png',
imageExtent: [
-13629027.891360067, 4539747.983913189,
-13619243.951739565, 4549531.923533691],
projection: projection
});
const imageloadstart = sinon.spy();
const imageloaderror = sinon.spy();
source.on('imageloadstart', imageloadstart);
source.on('imageloaderror', imageloaderror);
source.on('imageloadend', function(event) {
expect(imageloadstart.callCount).to.be(1);
expect(imageloaderror.callCount).to.be(0);
done();
});
const image = source.getImage(extent, resolution, pixelRatio, projection);
image.load();
});
});
});