caa0b568ad
Most of our uses of source extent were cargo cult programming. The source extent was seldom and inconsistently used. Instead, layers can now be configured with an extent, and layer renderers limit rendering (and data requests) to the layer extent. For vector sources, the `getExtent` method returns the extent of currently loaded features (this was the case before and after this change). For tile based sources, we will likely want to allow easy construction of tile grids based on an extent (this is not possible before or after this change, but could be added later).
206 lines
8.2 KiB
JavaScript
206 lines
8.2 KiB
JavaScript
goog.provide('ol.test.source.TileWMS');
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describe('ol.source.TileWMS', function() {
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var options;
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beforeEach(function() {
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options = {
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params: {
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'LAYERS': 'layer'
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},
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url: 'http://example.com/wms'
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};
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});
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describe('#getTile', function() {
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it('returns a tile with the expected URL', function() {
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var source = new ol.source.TileWMS(options);
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var tile = source.getTile(3, 2, 1, 1, ol.proj.get('EPSG:3857'));
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expect(tile).to.be.an(ol.ImageTile);
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var uri = new goog.Uri(tile.src_);
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expect(uri.getScheme()).to.be('http');
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expect(uri.getDomain()).to.be('example.com');
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expect(uri.getPath()).to.be('/wms');
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var queryData = uri.getQueryData();
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expect(queryData.get('BBOX')).to.be(
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'-10018754.171394622,-15028131.257091932,' +
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'-5009377.085697311,-10018754.17139462');
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expect(queryData.get('CRS')).to.be('EPSG:3857');
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expect(queryData.get('FORMAT')).to.be('image/png');
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expect(queryData.get('HEIGHT')).to.be('256');
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expect(queryData.get('LAYERS')).to.be('layer');
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expect(queryData.get('REQUEST')).to.be('GetMap');
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expect(queryData.get('SERVICE')).to.be('WMS');
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expect(queryData.get('SRS')).to.be(undefined);
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expect(queryData.get('STYLES')).to.be('');
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expect(queryData.get('TRANSPARENT')).to.be('true');
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expect(queryData.get('VERSION')).to.be('1.3.0');
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expect(queryData.get('WIDTH')).to.be('256');
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expect(uri.getFragment()).to.be.empty();
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});
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it('returns a larger tile when a gutter is specified', function() {
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options.gutter = 16;
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var source = new ol.source.TileWMS(options);
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var tile = source.getTile(3, 2, 1, 1, ol.proj.get('EPSG:3857'));
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expect(tile).to.be.an(ol.ImageTile);
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var uri = new goog.Uri(tile.src_);
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var queryData = uri.getQueryData();
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expect(queryData.get('BBOX')).to.be(
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'-10331840.239250705,-15341217.324948015,' +
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'-4696291.017841229,-9705668.103538537');
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expect(queryData.get('HEIGHT')).to.be('288');
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expect(queryData.get('WIDTH')).to.be('288');
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});
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it('sets the SRS query value instead of CRS if version < 1.3', function() {
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options.params.VERSION = '1.2';
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var source = new ol.source.TileWMS(options);
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var tile = source.getTile(3, 2, 1, 1, ol.proj.get('EPSG:4326'));
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var uri = new goog.Uri(tile.src_);
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var queryData = uri.getQueryData();
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expect(queryData.get('CRS')).to.be(undefined);
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expect(queryData.get('SRS')).to.be('EPSG:4326');
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});
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it('allows various parameters to be overridden', function() {
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options.params.FORMAT = 'image/jpeg';
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options.params.TRANSPARENT = false;
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var source = new ol.source.TileWMS(options);
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var tile = source.getTile(3, 2, 1, 1, ol.proj.get('EPSG:4326'));
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var uri = new goog.Uri(tile.src_);
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var queryData = uri.getQueryData();
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expect(queryData.get('FORMAT')).to.be('image/jpeg');
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expect(queryData.get('TRANSPARENT')).to.be('false');
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});
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it('does not add a STYLES= option if one is specified', function() {
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options.params.STYLES = 'foo';
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var source = new ol.source.TileWMS(options);
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var tile = source.getTile(3, 2, 1, 1, ol.proj.get('EPSG:4326'));
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var uri = new goog.Uri(tile.src_);
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var queryData = uri.getQueryData();
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expect(queryData.get('STYLES')).to.be('foo');
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});
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it('changes the BBOX order for EN axis orientations', function() {
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var source = new ol.source.TileWMS(options);
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var tile = source.getTile(3, 2, 1, 1, ol.proj.get('EPSG:4326'));
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var uri = new goog.Uri(tile.src_);
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var queryData = uri.getQueryData();
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expect(queryData.get('BBOX')).to.be('-45,-90,0,-45');
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});
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it('uses EN BBOX order if version < 1.3', function() {
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options.params.VERSION = '1.1.0';
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var source = new ol.source.TileWMS(options);
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var tile = source.getTile(3, 2, 1, 1, ol.proj.get('CRS:84'));
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var uri = new goog.Uri(tile.src_);
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var queryData = uri.getQueryData();
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expect(queryData.get('BBOX')).to.be('-90,-45,-45,0');
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});
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});
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describe('#tileUrlFunction', function() {
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it('returns a tile if it is contained within layers extent', function() {
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options.extent = [-80, -40, -50, -10];
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var source = new ol.source.TileWMS(options);
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var tileCoord = new ol.TileCoord(3, 2, 1);
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var url = source.tileUrlFunction(tileCoord, 1, ol.proj.get('EPSG:4326'));
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var uri = new goog.Uri(url);
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var queryData = uri.getQueryData();
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expect(queryData.get('BBOX')).to.be('-45,-90,0,-45');
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});
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it('returns a tile if it intersects layers extent', function() {
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options.extent = [-80, -40, -40, -10];
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var source = new ol.source.TileWMS(options);
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var tileCoord = new ol.TileCoord(3, 3, 1);
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var url = source.tileUrlFunction(tileCoord, 1, ol.proj.get('EPSG:4326'));
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var uri = new goog.Uri(url);
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var queryData = uri.getQueryData();
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expect(queryData.get('BBOX')).to.be('-45,-45,0,0');
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});
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});
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describe('#getGetFeatureInfo', function() {
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it('returns the expected GetFeatureInfo URL', function() {
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var source = new ol.source.TileWMS(options);
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source.pixelRatio_ = 1;
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var url = source.getGetFeatureInfoUrl(
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[-7000000, -12000000],
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19567.87924100512, ol.proj.get('EPSG:3857'),
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{INFO_FORMAT: 'text/plain'});
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var uri = new goog.Uri(url);
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expect(uri.getScheme()).to.be('http');
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expect(uri.getDomain()).to.be('example.com');
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expect(uri.getPath()).to.be('/wms');
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var queryData = uri.getQueryData();
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expect(queryData.get('BBOX')).to.be(
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'-10018754.171394622,-15028131.257091932,' +
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'-5009377.085697311,-10018754.17139462');
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expect(queryData.get('CRS')).to.be('EPSG:3857');
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expect(queryData.get('FORMAT')).to.be('image/png');
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expect(queryData.get('HEIGHT')).to.be('256');
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expect(queryData.get('I')).to.be('154');
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expect(queryData.get('J')).to.be('101');
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expect(queryData.get('LAYERS')).to.be('layer');
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expect(queryData.get('QUERY_LAYERS')).to.be('layer');
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expect(queryData.get('REQUEST')).to.be('GetFeatureInfo');
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expect(queryData.get('SERVICE')).to.be('WMS');
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expect(queryData.get('SRS')).to.be(undefined);
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expect(queryData.get('STYLES')).to.be('');
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expect(queryData.get('TRANSPARENT')).to.be('true');
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expect(queryData.get('VERSION')).to.be('1.3.0');
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expect(queryData.get('WIDTH')).to.be('256');
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expect(uri.getFragment()).to.be.empty();
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});
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it('sets the QUERY_LAYERS param as expected', function() {
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var source = new ol.source.TileWMS(options);
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source.pixelRatio_ = 1;
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var url = source.getGetFeatureInfoUrl(
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[-7000000, -12000000],
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19567.87924100512, ol.proj.get('EPSG:3857'),
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{INFO_FORMAT: 'text/plain', QUERY_LAYERS: 'foo,bar'});
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var uri = new goog.Uri(url);
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expect(uri.getScheme()).to.be('http');
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expect(uri.getDomain()).to.be('example.com');
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expect(uri.getPath()).to.be('/wms');
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var queryData = uri.getQueryData();
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expect(queryData.get('BBOX')).to.be(
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'-10018754.171394622,-15028131.257091932,' +
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'-5009377.085697311,-10018754.17139462');
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expect(queryData.get('CRS')).to.be('EPSG:3857');
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expect(queryData.get('FORMAT')).to.be('image/png');
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expect(queryData.get('HEIGHT')).to.be('256');
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expect(queryData.get('I')).to.be('154');
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expect(queryData.get('J')).to.be('101');
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expect(queryData.get('LAYERS')).to.be('layer');
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expect(queryData.get('QUERY_LAYERS')).to.be('foo,bar');
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expect(queryData.get('REQUEST')).to.be('GetFeatureInfo');
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expect(queryData.get('SERVICE')).to.be('WMS');
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expect(queryData.get('SRS')).to.be(undefined);
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expect(queryData.get('STYLES')).to.be('');
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expect(queryData.get('TRANSPARENT')).to.be('true');
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expect(queryData.get('VERSION')).to.be('1.3.0');
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expect(queryData.get('WIDTH')).to.be('256');
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expect(uri.getFragment()).to.be.empty();
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expect(uri.getFragment()).to.be.empty();
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});
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});
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});
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goog.require('goog.Uri');
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goog.require('ol.ImageTile');
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goog.require('ol.source.TileWMS');
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goog.require('ol.TileCoord');
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goog.require('ol.proj');
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