openlayers/test/spec/ol/tilegrid/wmts.test.js

import WMTSCapabilities from '../../../../src/ol/format/WMTSCapabilities.js';
import {createFromCapabilitiesMatrixSet} from '../../../../src/ol/tilegrid/WMTS.js';


describe('ol.tilegrid.WMTS', function() {

  describe('when creating tileGrid from capabilities', function() {
    const parser = new WMTSCapabilities();
    let capabilities;
    before(function(done) {
      afterLoadText('spec/ol/format/wmts/ogcsample.xml', function(xml) {
        try {
          capabilities = parser.read(xml);
        } catch (e) {
          done(e);
        }
        done();
      });
    });

    it('can create tileGrid for EPSG:3857',
      function() {
        const matrixSetObj = capabilities.Contents.TileMatrixSet[0];
        const tileGrid = createFromCapabilitiesMatrixSet(matrixSetObj);
        expect(tileGrid.matrixIds_).to.be.an('array');
        expect(tileGrid.matrixIds_).to.have.length(20);
        expect(tileGrid.matrixIds_).to.eql([
          '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11',
          '12', '13', '14', '15', '16', '17', '18', '19'
        ]);

        expect(tileGrid.resolutions_).to.be.an('array');
        expect(tileGrid.resolutions_).to.have.length(20);
        expect(tileGrid.resolutions_).to.eql([
          156543.03392811998, 78271.51696419998, 39135.758481959994,
          19567.879241008, 9783.939620504, 4891.969810252, 2445.984905126,
          1222.9924525644, 611.4962262807999, 305.74811314039994,
          152.87405657047998, 76.43702828523999, 38.21851414248,
          19.109257071295996, 9.554628535647998, 4.777314267823999,
          2.3886571339119995, 1.1943285669559998, 0.5971642834779999,
          0.29858214174039993
        ]);

        expect(tileGrid.origins_).to.be.an('array');
        expect(tileGrid.origins_).to.have.length(20);
        expect(tileGrid.origins_).to.eql(
          Array.apply(null, Array(20)).map(Array.prototype.valueOf,
            [-20037508.3428, 20037508.3428]));

        expect(tileGrid.tileSizes_).to.be.an('array');
        expect(tileGrid.tileSizes_).to.have.length(20);
        expect(tileGrid.tileSizes_).to.eql(
          Array.apply(null, Array(20)).map(Number.prototype.valueOf, 256));

      });
  });


  describe('when creating tileGrid from capabilities with and without TileMatrixSetLimits',
    function() {
      const parser = new WMTSCapabilities();
      let capabilities;
      before(function(done) {
        afterLoadText('spec/ol/format/wmts/ign.xml', function(xml) {
          try {
            capabilities = parser.read(xml);
          } catch (e) {
            done(e);
          }
          done();
        });
      });

      it('can create tileGrid for EPSG:3857 without matrixLimits',
        function() {
          const matrixSetObj = capabilities.Contents.TileMatrixSet[0];
          const tileGrid = createFromCapabilitiesMatrixSet(matrixSetObj);
          expect(tileGrid.matrixIds_).to.be.an('array');
          expect(tileGrid.matrixIds_).to.have.length(22);
          expect(tileGrid.matrixIds_).to.eql([
            '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11',
            '12', '13', '14', '15', '16', '17', '18', '19', '20', '21'
          ]);

          expect(tileGrid.resolutions_).to.be.an('array');
          expect(tileGrid.resolutions_).to.have.length(22);
          expect(tileGrid.resolutions_).to.eql([
            156543.033928041, 78271.51696402048, 39135.758482010235,
            19567.87924100512, 9783.93962050256, 4891.96981025128,
            2445.98490512564, 1222.99245256282, 611.49622628141,
            305.7481131407048, 152.8740565703525, 76.43702828517624,
            38.21851414258813, 19.10925707129406, 9.554628535647032,
            4.777314267823516, 2.388657133911758, 1.194328566955879,
            0.5971642834779395, 0.2985821417389697, 0.1492910708694849,
            0.0746455354347424
          ]);

          expect(tileGrid.origins_).to.be.an('array');
          expect(tileGrid.origins_).to.have.length(22);
          expect(tileGrid.origins_).to.eql(
            Array.apply(null, Array(22)).map(Array.prototype.valueOf,
              [-20037508, 20037508]));

          expect(tileGrid.tileSizes_).to.be.an('array');
          expect(tileGrid.tileSizes_).to.have.length(22);
          expect(tileGrid.tileSizes_).to.eql(
            Array.apply(null, Array(22)).map(Number.prototype.valueOf, 256));

        });

      it('can create tileGrid for EPSG:3857 with matrixLimits',
        function() {
          const matrixSetObj = capabilities.Contents.TileMatrixSet[0];
          const matrixLimitArray = capabilities.Contents.Layer[0]
            .TileMatrixSetLink[0].TileMatrixSetLimits;
          const tileGrid = createFromCapabilitiesMatrixSet(matrixSetObj, undefined, matrixLimitArray);
          expect(tileGrid.matrixIds_).to.be.an('array');
          expect(tileGrid.matrixIds_).to.have.length(20);
          expect(tileGrid.matrixIds_).to.eql([
            '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10', '11',
            '12', '13', '14', '15', '16', '17', '18', '19'
          ]);

          expect(tileGrid.resolutions_).to.be.an('array');
          expect(tileGrid.resolutions_).to.have.length(20);
          expect(tileGrid.resolutions_).to.eql([
            156543.033928041, 78271.51696402048, 39135.758482010235,
            19567.87924100512, 9783.93962050256, 4891.96981025128,
            2445.98490512564, 1222.99245256282, 611.49622628141,
            305.7481131407048, 152.8740565703525, 76.43702828517624,
            38.21851414258813, 19.10925707129406, 9.554628535647032,
            4.777314267823516, 2.388657133911758, 1.194328566955879,
            0.5971642834779395, 0.2985821417389697
          ]);

          expect(tileGrid.origins_).to.be.an('array');
          expect(tileGrid.origins_).to.have.length(20);
          expect(tileGrid.origins_).to.eql(
            Array.apply(null, Array(20)).map(Array.prototype.valueOf,
              [-20037508, 20037508]));

          expect(tileGrid.tileSizes_).to.be.an('array');
          expect(tileGrid.tileSizes_).to.have.length(20);
          expect(tileGrid.tileSizes_).to.eql(
            Array.apply(null, Array(20)).map(Number.prototype.valueOf, 256));

        });

      it('can use prefixed matrixLimits', function() {
        const matrixSetObj = capabilities.Contents.TileMatrixSet[1];
        const matrixLimitArray = capabilities.Contents.Layer[0].TileMatrixSetLink[1].TileMatrixSetLimits;
        const tileGrid = createFromCapabilitiesMatrixSet(matrixSetObj, undefined, matrixLimitArray);
        expect(tileGrid.matrixIds_).to.be.an('array');
        expect(tileGrid.matrixIds_).to.have.length(2);
        expect(tileGrid.matrixIds_).to.eql(['0', '1']);

        expect(tileGrid.resolutions_).to.be.an('array');
        expect(tileGrid.resolutions_).to.have.length(2);
        expect(tileGrid.resolutions_).to.eql([156543.033928041, 78271.51696402048]);

        expect(tileGrid.origins_).to.be.an('array');
        expect(tileGrid.origins_).to.have.length(2);
        expect(tileGrid.origins_).to.eql(
          Array.apply(null, Array(2)).map(Array.prototype.valueOf, [-20037508, 20037508])
        );

        expect(tileGrid.tileSizes_).to.be.an('array');
        expect(tileGrid.tileSizes_).to.have.length(2);
        expect(tileGrid.tileSizes_).to.eql(
          Array.apply(null, Array(2)).map(Number.prototype.valueOf, 256)
        );
      });
    });
});