ad62739a6e
In addition to using const and let, this also upgrades our linter config and removes lint (mostly whitespace).
123 lines
3.3 KiB
JavaScript
123 lines
3.3 KiB
JavaScript
import Map from '../../../../src/ol/Map.js';
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import View from '../../../../src/ol/View.js';
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import EventTarget from '../../../../src/ol/events/EventTarget.js';
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import Interaction from '../../../../src/ol/interaction/Interaction.js';
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describe('ol.interaction.Interaction', function() {
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describe('constructor', function() {
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let interaction;
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beforeEach(function() {
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interaction = new Interaction({});
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});
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it('creates a new interaction', function() {
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expect(interaction).to.be.a(Interaction);
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expect(interaction).to.be.a(EventTarget);
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});
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it('creates an active interaction', function() {
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expect(interaction.getActive()).to.be(true);
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});
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});
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describe('#getMap()', function() {
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it('retrieves the associated map', function() {
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const map = new Map({});
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const interaction = new Interaction({});
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interaction.setMap(map);
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expect(interaction.getMap()).to.be(map);
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});
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it('returns null if no map', function() {
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const interaction = new Interaction({});
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expect(interaction.getMap()).to.be(null);
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});
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});
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describe('#setMap()', function() {
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it('allows a map to be set', function() {
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const map = new Map({});
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const interaction = new Interaction({});
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interaction.setMap(map);
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expect(interaction.getMap()).to.be(map);
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});
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it('accepts null', function() {
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const interaction = new Interaction({});
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interaction.setMap(null);
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expect(interaction.getMap()).to.be(null);
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});
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});
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describe('zoomByDelta()', function() {
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it('changes view resolution', function() {
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const view = new View({
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resolution: 1,
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resolutions: [4, 2, 1, 0.5, 0.25]
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});
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Interaction.zoomByDelta(view, 1);
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expect(view.getResolution()).to.be(0.5);
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Interaction.zoomByDelta(view, -1);
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expect(view.getResolution()).to.be(1);
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Interaction.zoomByDelta(view, 2);
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expect(view.getResolution()).to.be(0.25);
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Interaction.zoomByDelta(view, -2);
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expect(view.getResolution()).to.be(1);
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});
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it('changes view resolution and center relative to the anchor', function() {
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const view = new View({
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center: [0, 0],
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resolution: 1,
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resolutions: [4, 2, 1, 0.5, 0.25]
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});
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Interaction.zoomByDelta(view, 1, [10, 10]);
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expect(view.getCenter()).to.eql([5, 5]);
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Interaction.zoomByDelta(view, -1, [0, 0]);
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expect(view.getCenter()).to.eql([10, 10]);
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Interaction.zoomByDelta(view, 2, [0, 0]);
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expect(view.getCenter()).to.eql([2.5, 2.5]);
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Interaction.zoomByDelta(view, -2, [0, 0]);
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expect(view.getCenter()).to.eql([10, 10]);
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});
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it('changes view resolution and center relative to the anchor, while respecting the extent', function() {
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const view = new View({
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center: [0, 0],
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extent: [-2.5, -2.5, 2.5, 2.5],
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resolution: 1,
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resolutions: [4, 2, 1, 0.5, 0.25]
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});
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Interaction.zoomByDelta(view, 1, [10, 10]);
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expect(view.getCenter()).to.eql([2.5, 2.5]);
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Interaction.zoomByDelta(view, -1, [0, 0]);
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expect(view.getCenter()).to.eql([2.5, 2.5]);
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Interaction.zoomByDelta(view, 2, [10, 10]);
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expect(view.getCenter()).to.eql([2.5, 2.5]);
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Interaction.zoomByDelta(view, -2, [0, 0]);
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expect(view.getCenter()).to.eql([2.5, 2.5]);
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});
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});
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});
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