openlayers/test/spec/ol/source/tilearcgisrest.test.js

Build tools and sources for developing OpenLayers based mapping applications

goog.provide('ol.test.source.TileArcGISRest');

goog.require('ol.ImageTile');
goog.require('ol.source.TileArcGISRest');
goog.require('ol.proj');


describe('ol.source.TileArcGISRest', function() {

  var options;
  beforeEach(function() {
    options = {
      params: {},
      url: 'http://example.com/MapServer'
    };
  });

  describe('#getTile', function() {

    it('returns a tile with the expected URL', function() {
      var source = new ol.source.TileArcGISRest(options);
      var tile = source.getTile(3, 2, -7, 1, ol.proj.get('EPSG:3857'));
      expect(tile).to.be.an(ol.ImageTile);
      var uri = new URL(tile.src_);
      expect(uri.protocol).to.be('http:');
      expect(uri.hostname).to.be('example.com');
      expect(uri.pathname).to.be('/MapServer/export');
      var queryData = uri.searchParams;
      var bbox = queryData.get('BBOX').split(',').map(parseFloat);
      expect(bbox[0]).roughlyEqual(-10018754.171394622, 1e-9);
      expect(bbox[1]).roughlyEqual(-15028131.257091936, 1e-9);
      expect(bbox[2]).roughlyEqual(-5009377.085697311, 1e-9);
      expect(bbox[3]).roughlyEqual(-10018754.171394624, 1e-9);
      expect(queryData.get('FORMAT')).to.be('PNG32');
      expect(queryData.get('SIZE')).to.be('256,256');
      expect(queryData.get('IMAGESR')).to.be('3857');
      expect(queryData.get('BBOXSR')).to.be('3857');
      expect(queryData.get('TRANSPARENT')).to.be('true');

    });

    it('returns a non floating point DPI value', function() {
      var source = new ol.source.TileArcGISRest(options);
      var tile = source.getTile(3, 2, -7, 1.12, ol.proj.get('EPSG:3857'));
      var uri = new URL(tile.src_);
      var queryData = uri.searchParams;
      expect(queryData.get('DPI')).to.be('101');
    });

    it('takes DPI from params if specified', function() {
      options.params.DPI = 96;
      var source = new ol.source.TileArcGISRest(options);
      var tile = source.getTile(3, 2, -7, 1.12, ol.proj.get('EPSG:3857'));
      var uri = new URL(tile.src_);
      var queryData = uri.searchParams;
      expect(queryData.get('DPI')).to.be('108');
      delete options.params.DPI;
    });

    it('returns a tile with the expected URL with url list', function() {

      options.urls = ['http://test1.com/MapServer',
                      'http://test2.com/MapServer'];
      var source = new ol.source.TileArcGISRest(options);

      var tile = source.getTile(3, 2, -7, 1, ol.proj.get('EPSG:3857'));
      expect(tile).to.be.an(ol.ImageTile);
      var uri = new URL(tile.src_);
      expect(uri.protocol).to.be('http:');
      expect(uri.hostname).to.match(/test[12]\.com/);
      expect(uri.pathname).to.be('/MapServer/export');
      var queryData = uri.searchParams;
      var bbox = queryData.get('BBOX').split(',').map(parseFloat);
      expect(bbox[0]).roughlyEqual(-10018754.171394622, 1e-9);
      expect(bbox[1]).roughlyEqual(-15028131.257091936, 1e-9);
      expect(bbox[2]).roughlyEqual(-5009377.085697311, 1e-9);
      expect(bbox[3]).roughlyEqual(-10018754.171394624, 1e-9);
      expect(queryData.get('FORMAT')).to.be('PNG32');
      expect(queryData.get('SIZE')).to.be('256,256');
      expect(queryData.get('IMAGESR')).to.be('3857');
      expect(queryData.get('BBOXSR')).to.be('3857');
      expect(queryData.get('TRANSPARENT')).to.be('true');

    });

    it('returns a tile with the expected URL for ImageServer', function() {
      options.url = 'http://example.com/ImageServer';
      var source = new ol.source.TileArcGISRest(options);
      var tile = source.getTile(3, 2, -7, 1, ol.proj.get('EPSG:3857'));
      expect(tile).to.be.an(ol.ImageTile);
      var uri = new URL(tile.src_);
      expect(uri.protocol).to.be('http:');
      expect(uri.hostname).to.be('example.com');
      expect(uri.pathname).to.be('/ImageServer/exportImage');
      var queryData = uri.searchParams;
      var bbox = queryData.get('BBOX').split(',').map(parseFloat);
      expect(bbox[0]).roughlyEqual(-10018754.171394622, 1e-9);
      expect(bbox[1]).roughlyEqual(-15028131.257091936, 1e-9);
      expect(bbox[2]).roughlyEqual(-5009377.085697311, 1e-9);
      expect(bbox[3]).roughlyEqual(-10018754.171394624, 1e-9);
      expect(queryData.get('FORMAT')).to.be('PNG32');
      expect(queryData.get('SIZE')).to.be('256,256');
      expect(queryData.get('IMAGESR')).to.be('3857');
      expect(queryData.get('BBOXSR')).to.be('3857');
      expect(queryData.get('TRANSPARENT')).to.be('true');
    });

    it('allows various parameters to be overridden', function() {
      options.params.FORMAT = 'png';
      options.params.TRANSPARENT = false;
      var source = new ol.source.TileArcGISRest(options);
      var tile = source.getTile(3, 2, -3, 1, ol.proj.get('EPSG:4326'));
      var uri = new URL(tile.src_);
      var queryData = uri.searchParams;
      expect(queryData.get('FORMAT')).to.be('png');
      expect(queryData.get('TRANSPARENT')).to.be('false');
    });

    it('allows adding rest option', function() {
      options.params.LAYERS = 'show:1,3,4';
      var source = new ol.source.TileArcGISRest(options);
      var tile = source.getTile(3, 2, -3, 1, ol.proj.get('EPSG:4326'));
      var uri = new URL(tile.src_);
      var queryData = uri.searchParams;
      expect(queryData.get('LAYERS')).to.be('show:1,3,4');
    });
  });

  describe('#updateParams', function() {

    it('add a new param', function() {
      var source = new ol.source.TileArcGISRest(options);
      source.updateParams({'TEST': 'value'});

      var tile = source.getTile(3, 2, -7, 1, ol.proj.get('EPSG:3857'));
      var uri = new URL(tile.src_);
      var queryData = uri.searchParams;
      expect(queryData.get('TEST')).to.be('value');
    });

    it('updates an existing param', function() {
      options.params.TEST = 'value';

      var source = new ol.source.TileArcGISRest(options);
      source.updateParams({'TEST': 'newValue'});

      var tile = source.getTile(3, 2, -7, 1, ol.proj.get('EPSG:3857'));
      var uri = new URL(tile.src_);
      var queryData = uri.searchParams;
      expect(queryData.get('TEST')).to.be('newValue');
    });

  });

  describe('#getParams', function() {

    it('verify getting a param', function() {
      options.params.TEST = 'value';
      var source = new ol.source.TileArcGISRest(options);

      var setParams = source.getParams();

      expect(setParams).to.eql({TEST: 'value'});
    });

    it('verify on adding a param', function() {
      options.params.TEST = 'value';

      var source = new ol.source.TileArcGISRest(options);
      source.updateParams({'TEST2': 'newValue'});

      var setParams = source.getParams();

      expect(setParams).to.eql({TEST: 'value', TEST2: 'newValue'});
    });

    it('verify on update a param', function() {
      options.params.TEST = 'value';

      var source = new ol.source.TileArcGISRest(options);
      source.updateParams({'TEST': 'newValue'});

      var setParams = source.getParams();

      expect(setParams).to.eql({TEST: 'newValue'});
    });

  });

  describe('#getUrls', function() {

    it('verify getting array of urls', function() {
      options.urls = ['http://test.com/MapServer',
                      'http://test2.com/MapServer'];

      var source = new ol.source.TileArcGISRest(options);

      var urls = source.getUrls();

      expect(urls).to.eql(['http://test.com/MapServer',
                           'http://test2.com/MapServer']);
    });


  });

  describe('#setUrls', function() {

    it('verify setting urls when not set yet', function() {

      var source = new ol.source.TileArcGISRest(options);
      source.setUrls(['http://test.com/MapServer',
                      'http://test2.com/MapServer']);

      var urls = source.getUrls();

      expect(urls).to.eql(['http://test.com/MapServer',
                           'http://test2.com/MapServer']);
    });

    it('verify setting urls with existing list', function() {
      options.urls = ['http://test.com/MapServer',
                      'http://test2.com/MapServer'];

      var source = new ol.source.TileArcGISRest(options);
      source.setUrls(['http://test3.com/MapServer',
                      'http://test4.com/MapServer']);

      var urls = source.getUrls();

      expect(urls).to.eql(['http://test3.com/MapServer',
                           'http://test4.com/MapServer']);
    });
  });

  describe('#setUrl', function() {

    it('verify setting url with no urls', function() {

      var source = new ol.source.TileArcGISRest(options);
      source.setUrl('http://test.com/MapServer');

      var urls = source.getUrls();

      expect(urls).to.eql(['http://test.com/MapServer']);
    });

    it('verify setting url with list of urls', function() {
      options.urls = ['http://test.com/MapServer',
                      'http://test2.com/MapServer'];

      var source = new ol.source.TileArcGISRest(options);
      source.setUrl('http://test3.com/MapServer');

      var urls = source.getUrls();

      expect(urls).to.eql(['http://test3.com/MapServer']);

      var tileUrl = source.tileUrlFunction([0, 0, 0], 1, ol.proj.get('EPSG:4326'));
      expect(tileUrl.indexOf(urls[0])).to.be(0);
    });


  });

});