Files
openlayers/test/browser/spec/ol/interaction/interaction.test.js
2021-04-28 09:23:33 -07:00

109 lines
2.9 KiB
JavaScript

import EventTarget from '../../../../../src/ol/events/Target.js';
import Interaction, {
zoomByDelta,
} from '../../../../../src/ol/interaction/Interaction.js';
import {FALSE} from '../../../../../src/ol/functions.js';
import {Map, View} from '../../../../../src/ol/index.js';
import {
clearUserProjection,
useGeographic,
} from '../../../../../src/ol/proj.js';
describe('ol.interaction.Interaction', function () {
describe('constructor', function () {
let interaction;
beforeEach(function () {
interaction = new Interaction({});
});
it('creates a new interaction', function () {
expect(interaction).to.be.a(Interaction);
expect(interaction).to.be.a(EventTarget);
});
it('creates an active interaction', function () {
expect(interaction.getActive()).to.be(true);
});
});
describe('#getMap()', function () {
it('retrieves the associated map', function () {
const map = new Map({});
const interaction = new Interaction({});
interaction.setMap(map);
expect(interaction.getMap()).to.be(map);
});
it('returns null if no map', function () {
const interaction = new Interaction({});
expect(interaction.getMap()).to.be(null);
});
});
describe('#setMap()', function () {
it('allows a map to be set', function () {
const map = new Map({});
const interaction = new Interaction({});
interaction.setMap(map);
expect(interaction.getMap()).to.be(map);
});
it('accepts null', function () {
const interaction = new Interaction({});
interaction.setMap(null);
expect(interaction.getMap()).to.be(null);
});
});
describe('#handleEvent()', function () {
class MockInteraction extends Interaction {
constructor() {
super(...arguments);
}
handleEvent(mapBrowserEvent) {
return false;
}
}
it('has a default event handler', function () {
const interaction = new Interaction({});
expect(interaction.handleEvent()).to.be(true);
});
it('allows event handler overrides via options', function () {
const interaction = new Interaction({
handleEvent: FALSE,
});
expect(interaction.handleEvent()).to.be(false);
});
it('allows event handler overrides via class extension', function () {
const interaction = new MockInteraction({});
expect(interaction.handleEvent()).to.be(false);
});
});
});
describe('zoomByDelta - useGeographic', () => {
beforeEach(useGeographic);
afterEach(clearUserProjection);
it('works with a user projection set', () => {
const view = new View({
center: [0, 0],
zoom: 0,
});
const spy = sinon.spy(view, 'animate');
const anchor = [90, 45];
const duration = 10;
zoomByDelta(view, 1, anchor, duration);
expect(spy.callCount).to.be(1);
const options = spy.getCall(0).args[0];
expect(options.anchor).to.be(anchor);
});
});