280 lines
8.8 KiB
JavaScript
280 lines
8.8 KiB
JavaScript
goog.provide('ol.test.parser.GeoJSON');
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describe('ol.parser.GeoJSON', function() {
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var parser = new ol.parser.GeoJSON();
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var data = {
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'type': 'FeatureCollection',
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'features': [
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{
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'type': 'Feature',
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'properties': {
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'LINK_ID': 573730499,
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'RP_TYPE': 14,
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'RP_FUNC': 0,
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'DIRECTION': 2,
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'LOGKOD': '',
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'CHANGED': '',
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'USERID': '',
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'ST_NAME': '',
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'L_REFADDR': '',
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'L_NREFADDR': '',
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'R_REFADDR': '',
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'R_NREFADDR': '',
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'SPEED_CAT': '7',
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'ZIPCODE': '59330',
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'SHAPE_LEN': 46.3826
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},
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'geometry': {
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'type': 'LineString',
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'coordinates': [
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[1549497.66985, 6403707.96],
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[1549491.1, 6403710.1],
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[1549488.03995, 6403716.7504],
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[1549488.5401, 6403724.5504],
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[1549494.37985, 6403733.54],
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[1549499.6799, 6403738.0504],
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[1549506.22, 6403739.2504]
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]
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}
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}, {
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'type': 'Feature',
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'properties': {
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'LINK_ID': 30760556,
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'RP_TYPE': 12,
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'RP_FUNC': 1,
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'DIRECTION': 0,
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'LOGKOD': '',
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'CHANGED': '',
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'USERID': '',
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'ST_NAME': 'BRUNNSGATAN',
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'L_REFADDR': '24',
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'L_NREFADDR': '16',
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'R_REFADDR': '',
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'R_NREFADDR': '',
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'SPEED_CAT': '7',
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'ZIPCODE': '59330',
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'SHAPE_LEN': 70.3106
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},
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'geometry': {
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'type': 'LineString',
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'coordinates': [
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[1549754.2769, 6403854.8024],
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[1549728.45985, 6403920.2]
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]
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}
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}
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]
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};
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describe('#write()', function() {
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it('encodes point', function() {
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var point = new ol.geom.Point([10, 20]);
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var geojson = parser.write(point);
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expect(point).to.eql(parser.read(geojson));
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});
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it('encodes linestring', function() {
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var linestring = new ol.geom.LineString([[10, 20], [30, 40]]);
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var geojson = parser.write(linestring);
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expect(linestring).to.eql(parser.read(geojson));
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});
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it('encodes polygon', function() {
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var outer = [[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]],
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inner1 = [[1, 1], [2, 1], [2, 2], [1, 2], [1, 1]],
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inner2 = [[8, 8], [9, 8], [9, 9], [8, 9], [8, 8]];
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var polygon = new ol.geom.Polygon([outer, inner1, inner2]);
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var geojson = parser.write(polygon);
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expect(polygon).to.eql(parser.read(geojson));
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});
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it('encodes geometry collection', function() {
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var collection = new ol.geom.GeometryCollection([
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new ol.geom.Point([10, 20]),
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new ol.geom.LineString([[30, 40], [50, 60]])
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]);
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var geojson = parser.write(collection);
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// surprised to see read return an Array of geometries instead of
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// a true ol.geom.GeometryCollection, so compare collection.components
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expect(collection.components).to.eql(parser.read(geojson));
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});
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it('encodes feature collection', function() {
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var str = JSON.stringify(data),
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array = parser.read(str);
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var geojson = parser.write(array);
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var result = parser.read(geojson);
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for (var i = 0, ii = array.length; i < ii; ++i) {
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expect(array[i].getGeometry()).to.eql(result[i].getGeometry());
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expect(array[i].getAttributes()).to.eql(result[i].getAttributes());
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}
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});
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});
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describe('#read()', function() {
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it('parses point', function() {
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var str = JSON.stringify({
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type: 'Point',
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coordinates: [10, 20]
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});
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var obj = parser.read(str);
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expect(obj).to.be.a(ol.geom.Point);
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expect(obj.getCoordinates()).to.eql([10, 20]);
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});
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it('parses linestring', function() {
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var str = JSON.stringify({
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type: 'LineString',
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coordinates: [[10, 20], [30, 40]]
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});
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var obj = parser.read(str);
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expect(obj).to.be.a(ol.geom.LineString);
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expect(obj.getCoordinates()).to.eql([[10, 20], [30, 40]]);
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});
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it('parses polygon', function() {
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var outer = [[0, 0], [10, 0], [10, 10], [0, 10], [0, 0]],
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inner1 = [[1, 1], [2, 1], [2, 2], [1, 2], [1, 1]],
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inner2 = [[8, 8], [9, 8], [9, 9], [8, 9], [8, 8]],
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str = JSON.stringify({
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type: 'Polygon',
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coordinates: [outer, inner1, inner2]
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});
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var obj = parser.read(str);
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expect(obj).to.be.a(ol.geom.Polygon);
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expect(obj.rings.length).to.be(3);
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expect(obj.rings[0]).to.be.a(ol.geom.LinearRing);
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expect(obj.rings[1]).to.be.a(ol.geom.LinearRing);
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expect(obj.rings[2]).to.be.a(ol.geom.LinearRing);
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});
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it('parses geometry collection', function() {
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var str = JSON.stringify({
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type: 'GeometryCollection',
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geometries: [
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{type: 'Point', coordinates: [10, 20]},
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{type: 'LineString', coordinates: [[30, 40], [50, 60]]}
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]
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});
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var array = parser.read(str);
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expect(array.length).to.be(2);
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expect(array[0]).to.be.a(ol.geom.Point);
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expect(array[1]).to.be.a(ol.geom.LineString);
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});
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it('parses feature collection', function() {
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var str = JSON.stringify(data),
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array = parser.read(str);
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expect(array.length).to.be(2);
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var first = array[0];
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expect(first).to.be.a(ol.Feature);
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expect(first.get('LINK_ID')).to.be(573730499);
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var firstGeom = first.getGeometry();
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expect(firstGeom).to.be.a(ol.geom.LineString);
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var second = array[1];
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expect(second).to.be.a(ol.Feature);
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expect(second.get('ST_NAME')).to.be('BRUNNSGATAN');
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var secondGeom = second.getGeometry();
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expect(secondGeom).to.be.a(ol.geom.LineString);
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});
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it('parses countries.geojson', function(done) {
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afterLoadText('spec/ol/parser/geojson/countries.geojson', function(text) {
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var result = parser.read(text);
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expect(result.length).to.be(179);
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var first = result[0];
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expect(first).to.be.a(ol.Feature);
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expect(first.get('name')).to.be('Afghanistan');
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expect(first.getFeatureId()).to.be('AFG');
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var firstGeom = first.getGeometry();
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expect(firstGeom).to.be.a(ol.geom.Polygon);
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expect(ol.extent.equals(firstGeom.getBounds(),
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[60.52843, 75.158028, 29.318572, 38.486282]))
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.to.be(true);
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var last = result[178];
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expect(last).to.be.a(ol.Feature);
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expect(last.get('name')).to.be('Zimbabwe');
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expect(last.getFeatureId()).to.be('ZWE');
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var lastGeom = last.getGeometry();
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expect(lastGeom).to.be.a(ol.geom.Polygon);
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expect(ol.extent.equals(lastGeom.getBounds(),
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[25.264226, 32.849861, -22.271612, -15.507787]))
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.to.be(true);
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done();
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});
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});
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it('parses countries.geojson with shared vertices', function() {
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afterLoadText('spec/ol/parser/geojson/countries.geojson', function(text) {
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var pointVertices = new ol.geom.SharedVertices();
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var lineVertices = new ol.geom.SharedVertices();
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var polygonVertices = new ol.geom.SharedVertices();
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var lookup = {
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'point': pointVertices,
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'linestring': lineVertices,
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'polygon': polygonVertices,
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'multipoint': pointVertices,
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'multilinstring': lineVertices,
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'multipolygon': polygonVertices
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};
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var callback = function(feature, type) {
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return lookup[type];
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};
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var result = parser.readFeaturesFromString(text, {callback: callback});
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expect(result.length).to.be(179);
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expect(pointVertices.coordinates.length).to.be(0);
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expect(lineVertices.coordinates.length).to.be(0);
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expect(polygonVertices.coordinates.length).to.be(21344);
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var first = result[0];
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expect(first).to.be.a(ol.Feature);
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expect(first.get('name')).to.be('Afghanistan');
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var firstGeom = first.getGeometry();
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expect(firstGeom).to.be.a(ol.geom.Polygon);
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expect(ol.extent.equals(firstGeom.getBounds(),
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[60.52843, 75.158028, 29.318572, 38.486282]))
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.to.be(true);
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var last = result[178];
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expect(last).to.be.a(ol.Feature);
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expect(last.get('name')).to.be('Zimbabwe');
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var lastGeom = last.getGeometry();
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expect(lastGeom).to.be.a(ol.geom.Polygon);
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expect(ol.extent.equals(lastGeom.getBounds(),
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[25.264226, 32.849861, -22.271612, -15.507787]))
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.to.be(true);
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});
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});
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});
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});
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goog.require('ol.Feature');
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goog.require('ol.extent');
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goog.require('ol.geom.GeometryCollection');
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goog.require('ol.geom.LinearRing');
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goog.require('ol.geom.LineString');
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goog.require('ol.geom.Point');
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goog.require('ol.geom.Polygon');
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goog.require('ol.geom.SharedVertices');
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goog.require('ol.parser.GeoJSON');
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