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openlayers/test/spec/ol/geom/geometrycollection.test.js

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JavaScript

goog.provide('ol.test.geom.GeometryCollection');
describe('ol.geom.GeometryCollection', function() {
var outer = [[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]],
inner1 = [[1, 1], [2, 1], [2, 2], [1, 2], [1, 1]],
inner2 = [[8, 8], [9, 8], [9, 9], [8, 9], [8, 8]];
describe('constructor', function() {
it('creates a geometry collection from an array of geometries', function() {
var point = new ol.geom.Point([10, 20]);
var line = new ol.geom.LineString([[10, 20], [30, 40]]);
var poly = new ol.geom.Polygon([outer, inner1, inner2]);
var multi = new ol.geom.GeometryCollection([point, line, poly]);
expect(multi).to.be.a(ol.geom.GeometryCollection);
expect(multi).to.be.a(ol.geom.Geometry);
});
});
describe('#components', function() {
it('is an array of geometries', function() {
var point = new ol.geom.Point([10, 20]);
var line = new ol.geom.LineString([[10, 20], [30, 40]]);
var poly = new ol.geom.Polygon([outer, inner1, inner2]);
var multi = new ol.geom.GeometryCollection([point, line, poly]);
expect(multi.components.length).to.be(3);
expect(multi.components[0]).to.be.a(ol.geom.Point);
expect(multi.components[1]).to.be.a(ol.geom.LineString);
expect(multi.components[2]).to.be.a(ol.geom.Polygon);
});
});
describe('#dimension', function() {
it('can be 2', function() {
var point = new ol.geom.Point([10, 20]);
var line = new ol.geom.LineString([[10, 20], [30, 40]]);
var poly = new ol.geom.Polygon([outer, inner1, inner2]);
var multi = new ol.geom.GeometryCollection([point, line, poly]);
expect(multi.dimension).to.be(2);
});
it('can be 3', function() {
var multi = new ol.geom.GeometryCollection([
new ol.geom.Point([30, 40, 50])
]);
expect(multi.dimension).to.be(3);
});
});
describe('#clone()', function() {
it('has a working clone method', function() {
var point = new ol.geom.Point([10, 20]);
var line = new ol.geom.LineString([[10, 20], [30, 40]]);
var poly = new ol.geom.Polygon([outer, inner1, inner2]);
var multi = new ol.geom.GeometryCollection([point, line, poly]);
var clone = multi.clone();
expect(clone).to.not.be(multi);
var components = clone.components;
expect(components[0]).to.eql([10, 20]);
expect(components[1]).to.eql([[10, 20], [30, 40]]);
expect(components[2]).to.eql([outer, inner1, inner2]);
});
});
describe('#getBounds()', function() {
it('returns the bounding extent', function() {
var point = new ol.geom.Point([10, 2]);
var line = new ol.geom.LineString([[1, 20], [30, 40]]);
var multi = new ol.geom.GeometryCollection([point, line]);
var bounds = multi.getBounds();
expect(bounds[0]).to.be(1);
expect(bounds[1]).to.be(30);
expect(bounds[2]).to.be(2);
expect(bounds[3]).to.be(40);
});
});
});
goog.require('ol.geom.Geometry');
goog.require('ol.geom.GeometryCollection');
goog.require('ol.geom.LineString');
goog.require('ol.geom.Point');
goog.require('ol.geom.Polygon');