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<html>
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<head>
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<script src="../lib/OpenLayers.js"></script>
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<script type="text/javascript"><!--
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var isMozilla = (navigator.userAgent.indexOf("compatible") == -1);
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var layer;
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var name = 'Test Layer';
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var url = "http://octo.metacarta.com/cgi-bin/mapserv";
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var params = { map: '/mapdata/vmap_wms.map',
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layers: 'basic',
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format: 'image/png'};
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/**
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* NOTE TO READER:
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*
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* Some of the tests on the Grid class actually use the WMS class.
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* This is because WMS is a subclass of Grid and it implements the
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* core functions which are necessary to test the tile-generation
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* mechanism.
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*
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*/
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function test_01_Layer_Grid_constructor (t) {
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t.plan( 1 );
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layer = new OpenLayers.Layer.Grid(name, url, params, null);
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t.ok( layer instanceof OpenLayers.Layer.Grid, "returns OpenLayers.Layer.Grid object" );
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}
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function test_02_Layer_Grid_inittiles (t) {
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t.plan( 2 );
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var map = new OpenLayers.Map($('map'));
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layer = new OpenLayers.Layer.WMS(name, url, params);
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map.addLayer(layer);
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map.setCenter(new OpenLayers.LonLat(0,0),5);
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t.eq( layer.grid.length, 7, "Grid rows is correct." );
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t.eq( layer.grid[0].length, 6, "Grid cols is correct." );
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}
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function test_03_Layer_Grid_clearTiles (t) {
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t.plan(1);
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var map = new OpenLayers.Map('map');
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layer = new OpenLayers.Layer.WMS(name, url, params);
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map.addLayer(layer);
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map.setCenter(new OpenLayers.LonLat(0,0));
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//grab a reference to one of the tiles
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var tile = layer.grid[0][0];
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layer.clearGrid();
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t.ok( layer.grid != null, "layer.grid does not get nullified" );
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}
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function test_04_Layer_Grid_getGridBounds(t) {
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t.plan( 1 );
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layer = new OpenLayers.Layer.WMS(name, url, params);
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var bl = { bounds: new OpenLayers.Bounds(1,2,0,0)};
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var tr = { bounds: new OpenLayers.Bounds(0,0,3,4)};
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layer.grid = [ [6, tr],
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[bl, 7]];
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var bounds = layer.getGridBounds();
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var testBounds = new OpenLayers.Bounds(1,2,3,4);
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t.ok( bounds.equals(testBounds), "getGridBounds() returns correct bounds")
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}
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function test_05_Layer_Grid_getResolution(t) {
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t.plan( 1 );
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var map = new OpenLayers.Map('map');
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layer = new OpenLayers.Layer.WMS(name, url, params);
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map.addLayer(layer);
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map.zoom = 5;
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t.eq( layer.getResolution(), 0.0439453125, "getResolution() returns correct value");
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}
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function test_06_Layer_Grid_getZoomForExtent(t) {
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t.plan( 2 );
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var bounds, zoom;
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var map = new OpenLayers.Map('map');
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layer = new OpenLayers.Layer.WMS(name, url, params);
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map.addLayer(layer);
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bounds = new OpenLayers.Bounds(10,10,12,12);
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zoom = layer.getZoomForExtent(bounds);
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t.eq( zoom, 8, "getZoomForExtent() returns correct value");
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bounds = new OpenLayers.Bounds(10,10,100,100);
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zoom = layer.getZoomForExtent(bounds);
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t.eq( zoom, 3, "getZoomForExtent() returns correct value");
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}
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/** THIS WOULD BE WHERE THE TESTS WOULD GO FOR
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*
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* -moveTo
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* -insertColumn
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* -insertRow
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function 07_Layer_Grid_moveTo(t) {
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}
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function 08_Layer_Grid_insertColumn(t) {
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}
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function 09_Layer_Grid_insertRow(t) {
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}
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*
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*/
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function test_10_Layer_Grid_clone(t) {
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t.plan(4);
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var options = {tileSize: new OpenLayers.Size(500,50)};
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var map = new OpenLayers.Map('map', options);
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layer = new OpenLayers.Layer.Grid(name, url, params);
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map.addLayer(layer);
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layer.grid = [ [6, 7],
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[8, 9]];
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var clone = layer.clone();
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t.ok( clone.grid == null, "clone does not copy grid");
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t.ok( clone.tileSize.equals(layer.tileSize), "tileSize correctly cloned");
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layer.tileSize.w += 40;
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t.eq( clone.tileSize.w, 500, "changing layer.tileSize does not change clone.tileSize -- a fresh copy was made, not just copied reference");
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t.eq( clone.alpha, layer.alpha, "alpha copied correctly");
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}
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function test_11_Layer_Grid_setMap(t) {
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t.plan(2);
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var options = {tileSize: new OpenLayers.Size(500,50)};
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var map = new OpenLayers.Map('map', options);
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layer = new OpenLayers.Layer.Grid(name, url, params);
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layer.setMap(map);
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t.ok( layer.tileSize != null, "tileSize has been set");
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t.ok( (layer.tileSize.h == 50) && (layer.tileSize.w == 500), "tileSize has been set correctly");
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}
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function test_99_Layer_Grid_destroy (t) {
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t.plan( 3 );
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var map = new OpenLayers.Map('map');
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layer = new OpenLayers.Layer.Grid(name, url, params);
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map.addLayer(layer);
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layer.destroy();
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t.eq( layer.grid, null, "layer.grid is null after destroy" );
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t.eq( layer.tileSize, null, "layer.tileSize is null after destroy" );
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//test with tile creation
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layer = new OpenLayers.Layer.WMS(name, url, params);
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map.addLayer(layer);
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map.setCenter(new OpenLayers.LonLat(0,0), 5);
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//grab a reference to one of the tiles
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var tile = layer.grid[0][0];
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layer.destroy();
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t.ok( layer.grid == null, "tiles appropriately destroyed")
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}
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// -->
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</script>
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</head>
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<body>
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<div id="map" style="width:500px;height:550px;display:none"></div>
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</body>
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</html>
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