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openlayers

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Build tools and sources for developing OpenLayers based mapping applications

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goog.provide('ol.test.source.TileWMS'); goog.require('ol.ImageTile'); goog.require('ol.proj'); goog.require('ol.source.TileWMS'); goog.require('ol.tilegrid'); goog.require('ol.tilegrid.TileGrid'); describe('ol.source.TileWMS', function() { var options; beforeEach(function() { options = { params: { 'LAYERS': 'layer' }, url: 'http://example.com/wms' }; }); describe('constructor', function() { it('can be constructed without url or urls params', function() { var source = new ol.source.TileWMS({ projection: 'EPSG:3857', tileGrid: ol.tilegrid.createXYZ({maxZoom: 6}) }); expect(source).to.be.an(ol.source.TileWMS); }); }); describe('#getTile', function() { it('returns a tile with the expected URL', function() { var source = new ol.source.TileWMS(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('/wms'); 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('CRS')).to.be('EPSG:3857'); expect(queryData.get('FORMAT')).to.be('image/png'); expect(queryData.get('HEIGHT')).to.be('256'); expect(queryData.get('LAYERS')).to.be('layer'); expect(queryData.get('REQUEST')).to.be('GetMap'); expect(queryData.get('SERVICE')).to.be('WMS'); expect(queryData.get('SRS')).to.be(null); expect(queryData.get('STYLES')).to.be(''); expect(queryData.get('TRANSPARENT')).to.be('true'); expect(queryData.get('VERSION')).to.be('1.3.0'); expect(queryData.get('WIDTH')).to.be('256'); expect(uri.hash.replace('#', '')).to.be.empty(); }); it('returns a larger tile when a gutter is specified', function() { options.gutter = 16; var source = new ol.source.TileWMS(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_); var queryData = uri.searchParams; var bbox = queryData.get('BBOX').split(','); var expected = [-10331840.239250705, -15341217.324948018, -4696291.017841229, -9705668.103538541]; for (var i = 0, ii = bbox.length; i < ii; ++i) { expect(parseFloat(bbox[i])).to.roughlyEqual(expected[i], 1e-9); } expect(queryData.get('HEIGHT')).to.be('288'); expect(queryData.get('WIDTH')).to.be('288'); }); it('sets the SRS query value instead of CRS if version < 1.3', function() { options.params.VERSION = '1.2'; var source = new ol.source.TileWMS(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('CRS')).to.be(null); expect(queryData.get('SRS')).to.be('EPSG:4326'); }); it('allows various parameters to be overridden', function() { options.params.FORMAT = 'image/jpeg'; options.params.TRANSPARENT = false; var source = new ol.source.TileWMS(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('image/jpeg'); expect(queryData.get('TRANSPARENT')).to.be('false'); }); it('does not add a STYLES= option if one is specified', function() { options.params.STYLES = 'foo'; var source = new ol.source.TileWMS(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('STYLES')).to.be('foo'); }); it('changes the BBOX order for EN axis orientations', function() { var source = new ol.source.TileWMS(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('BBOX')).to.be('-45,-90,0,-45'); }); it('uses EN BBOX order if version < 1.3', function() { options.params.VERSION = '1.1.0'; var source = new ol.source.TileWMS(options); var tile = source.getTile(3, 2, -3, 1, ol.proj.get('CRS:84')); var uri = new URL(tile.src_); var queryData = uri.searchParams; expect(queryData.get('BBOX')).to.be('-90,-45,-45,0'); }); it('sets FORMAT_OPTIONS when the server is GeoServer', function() { options.serverType = 'geoserver'; var source = new ol.source.TileWMS(options); var tile = source.getTile(3, 2, -3, 2, ol.proj.get('CRS:84')); var uri = new URL(tile.src_); var queryData = uri.searchParams; expect(queryData.get('FORMAT_OPTIONS')).to.be('dpi:180'); }); it('extends FORMAT_OPTIONS if it is already present', function() { options.serverType = 'geoserver'; var source = new ol.source.TileWMS(options); options.params.FORMAT_OPTIONS = 'param1:value1'; var tile = source.getTile(3, 2, -3, 2, ol.proj.get('CRS:84')); var uri = new URL(tile.src_); var queryData = uri.searchParams; expect(queryData.get('FORMAT_OPTIONS')).to.be('param1:value1;dpi:180'); }); it('rounds FORMAT_OPTIONS to an integer when the server is GeoServer', function() { options.serverType = 'geoserver'; var source = new ol.source.TileWMS(options); var tile = source.getTile(3, 2, -3, 1.325, ol.proj.get('CRS:84')); var uri = new URL(tile.src_); var queryData = uri.searchParams; expect(queryData.get('FORMAT_OPTIONS')).to.be('dpi:119'); }); }); describe('#tileUrlFunction', function() { it('returns a tile if it is contained within layers extent', function() { options.extent = [-80, -40, -50, -10]; var source = new ol.source.TileWMS(options); var tileCoord = [3, 2, -3]; var url = source.tileUrlFunction(tileCoord, 1, ol.proj.get('EPSG:4326')); var uri = new URL(url); var queryData = uri.searchParams; expect(queryData.get('BBOX')).to.be('-45,-90,0,-45'); }); it('returns a tile if it intersects layers extent', function() { options.extent = [-80, -40, -40, -10]; var source = new ol.source.TileWMS(options); var tileCoord = [3, 3, -3]; var url = source.tileUrlFunction(tileCoord, 1, ol.proj.get('EPSG:4326')); var uri = new URL(url); var queryData = uri.searchParams; expect(queryData.get('BBOX')).to.be('-45,-45,0,0'); }); it('works with non-square tiles', function() { options.tileGrid = new ol.tilegrid.TileGrid({ tileSize: [640, 320], resolutions: [1.40625, 0.703125, 0.3515625, 0.17578125], origin: [-180, -90] }); var source = new ol.source.TileWMS(options); var tileCoord = [3, 3, -3]; var url = source.tileUrlFunction(tileCoord, 1, ol.proj.get('EPSG:4326')); var uri = new URL(url); var queryData = uri.searchParams; expect(queryData.get('WIDTH')).to.be('640'); expect(queryData.get('HEIGHT')).to.be('320'); }); }); describe('#getGetFeatureInfo', function() { it('returns the expected GetFeatureInfo URL', function() { var source = new ol.source.TileWMS(options); source.pixelRatio_ = 1; var url = source.getGetFeatureInfoUrl( [-7000000, -12000000], 19567.87924100512, ol.proj.get('EPSG:3857'), {INFO_FORMAT: 'text/plain'}); var uri = new URL(url); expect(uri.protocol).to.be('http:'); expect(uri.hostname).to.be('example.com'); expect(uri.pathname).to.be('/wms'); 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('CRS')).to.be('EPSG:3857'); expect(queryData.get('FORMAT')).to.be('image/png'); expect(queryData.get('HEIGHT')).to.be('256'); expect(queryData.get('I')).to.be('154'); expect(queryData.get('J')).to.be('101'); expect(queryData.get('LAYERS')).to.be('layer'); expect(queryData.get('QUERY_LAYERS')).to.be('layer'); expect(queryData.get('REQUEST')).to.be('GetFeatureInfo'); expect(queryData.get('SERVICE')).to.be('WMS'); expect(queryData.get('SRS')).to.be(null); expect(queryData.get('STYLES')).to.be(''); expect(queryData.get('TRANSPARENT')).to.be('true'); expect(queryData.get('VERSION')).to.be('1.3.0'); expect(queryData.get('WIDTH')).to.be('256'); expect(uri.hash.replace('#', '')).to.be.empty(); }); it('sets the QUERY_LAYERS param as expected', function() { var source = new ol.source.TileWMS(options); source.pixelRatio_ = 1; var url = source.getGetFeatureInfoUrl( [-7000000, -12000000], 19567.87924100512, ol.proj.get('EPSG:3857'), {INFO_FORMAT: 'text/plain', QUERY_LAYERS: 'foo,bar'}); var uri = new URL(url); expect(uri.protocol).to.be('http:'); expect(uri.hostname).to.be('example.com'); expect(uri.pathname).to.be('/wms'); 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('CRS')).to.be('EPSG:3857'); expect(queryData.get('FORMAT')).to.be('image/png'); expect(queryData.get('HEIGHT')).to.be('256'); expect(queryData.get('I')).to.be('154'); expect(queryData.get('J')).to.be('101'); expect(queryData.get('LAYERS')).to.be('layer'); expect(queryData.get('QUERY_LAYERS')).to.be('foo,bar'); expect(queryData.get('REQUEST')).to.be('GetFeatureInfo'); expect(queryData.get('SERVICE')).to.be('WMS'); expect(queryData.get('SRS')).to.be(null); expect(queryData.get('STYLES')).to.be(''); expect(queryData.get('TRANSPARENT')).to.be('true'); expect(queryData.get('VERSION')).to.be('1.3.0'); expect(queryData.get('WIDTH')).to.be('256'); expect(uri.hash.replace('#', '')).to.be.empty(); }); }); describe('#setUrl()', function() { it('sets the correct url', function() { var source = new ol.source.TileWMS(options); var url = 'http://foo/'; source.setUrl(url); var tileUrl = source.tileUrlFunction([0, 0, 0], 1, ol.proj.get('EPSG:4326')); expect(tileUrl.indexOf(url)).to.be(0); }); }); describe('#setUrls()', function() { it ('resets coordKeyPrefix_', function() { var urls = ['u1', 'u2']; var source1 = new ol.source.TileWMS({ urls: urls }); var source2 = new ol.source.TileWMS({}); expect(source2.coordKeyPrefix_).to.be.empty(); source2.setUrls(urls); expect(source2.coordKeyPrefix_).to.equal(source1.coordKeyPrefix_); }); }); });