435 lines
13 KiB
JavaScript
435 lines
13 KiB
JavaScript
import Feature, {createStyleFunction} from '../../../../src/ol/Feature.js';
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import Point from '../../../../src/ol/geom/Point.js';
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import Style from '../../../../src/ol/style/Style.js';
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import {isEmpty} from '../../../../src/ol/obj.js';
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describe('ol.Feature', function () {
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describe('constructor', function () {
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it('creates a new feature', function () {
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const feature = new Feature();
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expect(feature).to.be.a(Feature);
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});
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it('takes properties', function () {
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const feature = new Feature({
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foo: 'bar',
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});
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expect(feature.get('foo')).to.be('bar');
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});
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it("can store the feature's commonly used id", function () {
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const feature = new Feature();
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feature.setId('foo');
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expect(feature.getId()).to.be('foo');
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});
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it('will set the default geometry', function () {
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const feature = new Feature({
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geometry: new Point([10, 20]),
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foo: 'bar',
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});
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const geometry = feature.getGeometry();
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expect(geometry).to.be.a(Point);
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expect(feature.get('geometry')).to.be(geometry);
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});
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});
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describe('#get()', function () {
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it('returns values set at construction', function () {
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const feature = new Feature({
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a: 'first',
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b: 'second',
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});
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expect(feature.get('a')).to.be('first');
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expect(feature.get('b')).to.be('second');
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});
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it('returns undefined for unset attributes', function () {
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const feature = new Feature();
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expect(feature.get('a')).to.be(undefined);
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});
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it('returns values set by set', function () {
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const feature = new Feature();
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feature.set('a', 'b');
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expect(feature.get('a')).to.be('b');
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});
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});
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describe('#getProperties()', function () {
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it('returns an object with all attributes', function () {
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const point = new Point([15, 30]);
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const feature = new Feature({
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foo: 'bar',
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ten: 10,
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geometry: point,
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});
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const attributes = feature.getProperties();
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const keys = Object.keys(attributes);
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expect(keys.sort()).to.eql(['foo', 'geometry', 'ten']);
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expect(attributes.foo).to.be('bar');
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expect(attributes.geometry).to.be(point);
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expect(attributes.ten).to.be(10);
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});
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it('is empty by default', function () {
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const feature = new Feature();
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const properties = feature.getProperties();
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expect(isEmpty(properties)).to.be(true);
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});
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});
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describe('#getGeometry()', function () {
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const point = new Point([15, 30]);
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it('returns undefined for unset geometry', function () {
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const feature = new Feature();
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expect(feature.getGeometry()).to.be(undefined);
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});
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it('returns null for null geometry (constructor)', function () {
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const feature = new Feature(null);
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expect(feature.getGeometry()).to.be(undefined);
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});
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it('returns null for null geometry (setGeometry())', function () {
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const feature = new Feature();
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feature.setGeometry(null);
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expect(feature.getGeometry()).to.be(null);
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});
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it('gets the geometry set at construction', function () {
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const feature = new Feature({
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geometry: point,
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});
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expect(feature.getGeometry()).to.be(point);
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});
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it('gets any geometry set by setGeometry', function () {
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const feature = new Feature();
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feature.setGeometry(point);
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expect(feature.getGeometry()).to.be(point);
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const point2 = new Point([1, 2]);
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feature.setGeometry(point2);
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expect(feature.getGeometry()).to.be(point2);
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});
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});
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describe('#set()', function () {
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it('sets values', function () {
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const feature = new Feature({
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a: 'first',
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b: 'second',
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});
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feature.set('a', 'new');
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expect(feature.get('a')).to.be('new');
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});
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it('can be used to set the geometry', function () {
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const point = new Point([3, 4]);
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const feature = new Feature({
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geometry: new Point([1, 2]),
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});
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feature.set('geometry', point);
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expect(feature.get('geometry')).to.be(point);
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expect(feature.getGeometry()).to.be(point);
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});
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it('can be used to set attributes with arbitrary names', function () {
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const feature = new Feature();
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feature.set('toString', 'string');
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expect(feature.get('toString')).to.be('string');
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expect(typeof feature.toString).to.be('function');
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feature.set('getGeometry', 'x');
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expect(feature.get('getGeometry')).to.be('x');
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feature.set('geometry', new Point([1, 2]));
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expect(feature.getGeometry()).to.be.a(Point);
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});
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});
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describe('#setGeometry()', function () {
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const point = new Point([15, 30]);
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it('sets the default geometry', function () {
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const feature = new Feature();
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feature.setGeometry(point);
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expect(feature.get('geometry')).to.be(point);
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});
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it('replaces previous default geometry', function () {
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const feature = new Feature({
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geometry: point,
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});
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expect(feature.getGeometry()).to.be(point);
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const point2 = new Point([1, 2]);
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feature.setGeometry(point2);
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expect(feature.getGeometry()).to.be(point2);
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});
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});
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describe('#setGeometryName()', function () {
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const point = new Point([15, 30]);
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it('sets property where to to look at geometry', function () {
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const feature = new Feature();
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feature.setGeometry(point);
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expect(feature.getGeometry()).to.be(point);
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const point2 = new Point([1, 2]);
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feature.set('altGeometry', point2);
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expect(feature.getGeometry()).to.be(point);
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feature.setGeometryName('altGeometry');
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expect(feature.getGeometry()).to.be(point2);
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feature.on('change', function () {
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expect().fail();
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});
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point.setCoordinates([0, 2]);
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});
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it('changes property listener', function () {
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const feature = new Feature();
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feature.setGeometry(point);
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const point2 = new Point([1, 2]);
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feature.set('altGeometry', point2);
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feature.setGeometryName('altGeometry');
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const spy = sinon.spy();
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feature.on('change', spy);
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point2.setCoordinates([0, 2]);
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expect(spy.callCount).to.be(1);
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});
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it('can use a different geometry name', function () {
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const feature = new Feature();
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feature.setGeometryName('foo');
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const point = new Point([10, 20]);
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feature.setGeometry(point);
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expect(feature.getGeometry()).to.be(point);
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});
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});
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describe('#setId()', function () {
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it('sets the feature identifier', function () {
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const feature = new Feature();
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expect(feature.getId()).to.be(undefined);
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feature.setId('foo');
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expect(feature.getId()).to.be('foo');
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});
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it('accepts a string or number', function () {
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const feature = new Feature();
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feature.setId('foo');
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expect(feature.getId()).to.be('foo');
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feature.setId(2);
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expect(feature.getId()).to.be(2);
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});
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it('dispatches the "change" event', function (done) {
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const feature = new Feature();
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feature.on('change', function () {
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expect(feature.getId()).to.be('foo');
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done();
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});
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feature.setId('foo');
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});
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});
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describe('#getStyleFunction()', function () {
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const styleFunction = function (feature, resolution) {
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return null;
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};
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it('returns undefined after construction', function () {
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const feature = new Feature();
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expect(feature.getStyleFunction()).to.be(undefined);
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});
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it('returns the function passed to setStyle', function () {
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const feature = new Feature();
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feature.setStyle(styleFunction);
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expect(feature.getStyleFunction()).to.be(styleFunction);
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});
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it('does not get confused with user "styleFunction" property', function () {
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const feature = new Feature();
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feature.set('styleFunction', 'foo');
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expect(feature.getStyleFunction()).to.be(undefined);
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});
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it('does not get confused with "styleFunction" option', function () {
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const feature = new Feature({
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styleFunction: 'foo',
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});
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expect(feature.getStyleFunction()).to.be(undefined);
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});
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});
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describe('#setStyle()', function () {
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const style = new Style();
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const styleFunction = function (feature, resolution) {
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return resolution;
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};
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it('accepts a single style', function () {
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const feature = new Feature();
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feature.setStyle(style);
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const func = feature.getStyleFunction();
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expect(func()).to.eql([style]);
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});
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it('accepts an array of styles', function () {
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const feature = new Feature();
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feature.setStyle([style]);
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const func = feature.getStyleFunction();
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expect(func()).to.eql([style]);
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});
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it('accepts a style function', function () {
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const feature = new Feature();
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feature.setStyle(styleFunction);
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expect(feature.getStyleFunction()).to.be(styleFunction);
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expect(feature.getStyleFunction()(feature, 42)).to.be(42);
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});
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it('accepts null', function () {
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const feature = new Feature();
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feature.setStyle(style);
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feature.setStyle(null);
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expect(feature.getStyle()).to.be(null);
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expect(feature.getStyleFunction()).to.be(undefined);
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});
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it('dispatches a change event', function () {
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const feature = new Feature();
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const spy = sinon.spy();
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feature.on('change', spy);
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feature.setStyle(style);
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expect(spy.callCount).to.be(1);
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});
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});
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describe('#getStyle()', function () {
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const style = new Style();
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const styleFunction = function (feature, resolution) {
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return null;
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};
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it('returns what is passed to setStyle', function () {
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const feature = new Feature();
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expect(feature.getStyle()).to.be(null);
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feature.setStyle(style);
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expect(feature.getStyle()).to.be(style);
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feature.setStyle([style]);
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expect(feature.getStyle()).to.eql([style]);
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feature.setStyle(styleFunction);
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expect(feature.getStyle()).to.be(styleFunction);
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});
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it('does not get confused with "style" option to constructor', function () {
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const feature = new Feature({
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style: 'foo',
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});
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expect(feature.getStyle()).to.be(null);
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});
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it('does not get confused with user set "style" property', function () {
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const feature = new Feature();
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feature.set('style', 'foo');
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expect(feature.getStyle()).to.be(null);
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});
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});
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describe('#clone', function () {
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it('correctly clones features', function () {
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const feature = new Feature();
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feature.setProperties({'fookey': 'fooval'});
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feature.setId(1);
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feature.setGeometryName('geom');
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const geometry = new Point([1, 2]);
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feature.setGeometry(geometry);
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const style = new Style({});
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feature.setStyle(style);
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feature.set('barkey', 'barval');
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const clone = feature.clone();
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expect(clone.get('fookey')).to.be('fooval');
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expect(clone.getId()).to.be(undefined);
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expect(clone.getGeometryName()).to.be('geom');
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const geometryClone = clone.getGeometry();
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expect(geometryClone).not.to.be(geometry);
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const coordinates = geometryClone.getFlatCoordinates();
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expect(coordinates[0]).to.be(1);
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expect(coordinates[1]).to.be(2);
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expect(clone.getStyle()).to.be(style);
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expect(clone.get('barkey')).to.be('barval');
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});
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it('correctly clones features with no geometry and no style', function () {
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const feature = new Feature();
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feature.set('fookey', 'fooval');
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const clone = feature.clone();
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expect(clone.get('fookey')).to.be('fooval');
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expect(clone.getGeometry()).to.be(undefined);
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expect(clone.getStyle()).to.be(null);
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});
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});
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describe('#setGeometry()', function () {
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it('dispatches a change event when geometry is set to null', function () {
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const feature = new Feature({
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geometry: new Point([0, 0]),
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});
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const spy = sinon.spy();
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feature.on('change', spy);
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feature.setGeometry(null);
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expect(spy.callCount).to.be(1);
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});
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});
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});
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describe('ol.Feature.createStyleFunction()', function () {
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const style = new Style();
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it('creates a feature style function from a single style', function () {
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const styleFunction = createStyleFunction(style);
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expect(styleFunction()).to.eql([style]);
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});
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it('creates a feature style function from an array of styles', function () {
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const styleFunction = createStyleFunction([style]);
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expect(styleFunction()).to.eql([style]);
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});
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it('passes through a function', function () {
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const original = function (feature, resolution) {
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return [style];
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};
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const styleFunction = createStyleFunction(original);
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expect(styleFunction).to.be(original);
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});
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it('throws on (some) unexpected input', function () {
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expect(function () {
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createStyleFunction({bogus: 'input'});
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}).to.throwException();
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});
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});
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