3 <script src="../../lib/OpenLayers.js"></script>
4 <script type="text/javascript">
7 function test_Layer_Image_constructor (t) {
10 var options = { chicken: 151, foo: "bar", projection: "none" };
11 var layer = new OpenLayers.Layer.Image('Test Layer',
12 'http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif',
13 new OpenLayers.Bounds(-180, -88.759, 180, 88.759),
14 new OpenLayers.Size(580, 288), options);
16 t.ok( layer instanceof OpenLayers.Layer.Image, "new OpenLayers.Layer.Image returns object" );
17 t.eq( layer.CLASS_NAME, "OpenLayers.Layer.Image", "CLASS_NAME variable set correctly");
19 t.eq( layer.name, "Test Layer", "layer.name is correct" );
20 t.ok( layer.id != null, "Layer is given an id");
21 t.eq( layer.projection, "none", "default layer projection correctly set");
22 t.ok( ((layer.chicken == 151) && (layer.foo == "bar")), "layer.options correctly set to Layer Object" );
23 t.ok( ((layer.options["chicken"] == 151) && (layer.options["foo"] == "bar")), "layer.options correctly backed up" );
25 options.chicken = 552;
27 t.eq( layer.options["chicken"], 151 , "layer.options correctly made fresh copy" );
29 t.eq( layer.isBaseLayer, true, "Default img layer is base layer" );
31 layer = new OpenLayers.Layer.Image('Test Layer',
32 'http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif',
33 new OpenLayers.Bounds(-180, -88.759, 180, 88.759),
34 new OpenLayers.Size(580, 288));
35 t.ok( layer instanceof OpenLayers.Layer.Image, "new OpenLayers.Layer.Image returns object" );
36 t.eq( layer.name, "Test Layer", "layer.name is correct" );
37 t.ok( layer.projection == null, "default layer projection correctly set");
38 t.ok( layer.options instanceof Object, "layer.options correctly initialized as a non-null Object" );
41 function test_maxExtent(t) {
45 // test that the image extent is set as the default maxExtent
46 var extent = new OpenLayers.Bounds(1, 2, 3, 4);
47 var size = new OpenLayers.Size(2, 2);
48 layer = new OpenLayers.Layer.Image("Test", "foo", extent, size);
49 t.eq(layer.maxExtent.toString(), extent.toString(), "extent set as default maxExtent");
51 // test that the maxExtent can be set explicitly
52 var maxExtent = new OpenLayers.Bounds(10, 20, 30, 40);
53 layer = new OpenLayers.Layer.Image("Test", "foo", extent, size, {maxExtent: maxExtent});
54 t.eq(layer.maxExtent.toString(), maxExtent.toString(), "maxExtent can be set explicitly");
58 function test_Layer_Image_tileTests (t) {
60 var map = new OpenLayers.Map('map');
62 layer = new OpenLayers.Layer.Image('Test Layer',
63 'http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif',
64 new OpenLayers.Bounds(-180, -88.759, 180, 88.759),
65 new OpenLayers.Size(580, 288));
68 map.zoomToMaxExtent();
70 // no resolution info was sent, so maxResolution should be calculated
71 // by aspectRatio*extent/size (this is the pixel aspect ratio)
72 var aspectRatio = (layer.extent.getHeight() / layer.size.h) /
73 (layer.extent.getWidth() / layer.size.w);
74 t.eq(aspectRatio, layer.aspectRatio, "aspectRatio is properly set");
75 var maxExtent = aspectRatio * layer.extent.getWidth() / layer.size.w;
76 t.eq(maxExtent, layer.maxResolution, "maxResolution is properly set");
78 t.eq(layer.tile.position.x,-42, "Tile x positioned correctly at maxextent");
79 t.eq(layer.tile.position.y,106, "Tile y positioned correctly at maxextent");
80 t.eq(layer.tile.imgDiv.src, "http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif", "URL is correct");
82 t.eq(layer.tile.imgDiv.src, "http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif", "URL is correct");
83 layer.setUrl('http://labs.metacarta.com/wms/vmap0?LAYERS=basic&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&FORMAT=image%2Fjpeg&SRS=EPSG%3A4326&BBOX=-180,-90,0,90&WIDTH=256&HEIGHT=256');
84 t.eq(layer.tile.imgDiv.src, "http://labs.metacarta.com/wms/vmap0?LAYERS=basic&SERVICE=WMS&VERSION=1.1.1&REQUEST=GetMap&STYLES=&EXCEPTIONS=application%2Fvnd.ogc.se_inimage&FORMAT=image%2Fjpeg&SRS=EPSG%3A4326&BBOX=-180,-90,0,90&WIDTH=256&HEIGHT=256", "URL is correct after setURL");
89 * HERE IS WHERE SOME TESTS SHOULD BE PUT TO CHECK ON THE LONLAT-PX TRANSLATION
90 * FUNCTIONS AND RESOLUTION AND GETEXTENT GETZOOMLEVEL, ETC
96 function test_Layer_Image_destroy_before_use (t) {
98 var map = new OpenLayers.Map('map');
99 layer = new OpenLayers.Layer.Image('Test', 'http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif', new OpenLayers.Bounds(-180, -88.759, 180, 88.759), new OpenLayers.Size(580, 288));
101 map.removeLayer(layer);
103 t.ok(true, "destroy() didn't throw an error");
106 function test_Layer_Image_destroy (t) {
109 var map = new OpenLayers.Map('map');
111 layer = new OpenLayers.Layer.Image('Test Layer',
112 'http://earthtrends.wri.org/images/maps/4_m_citylights_lg.gif',
113 new OpenLayers.Bounds(-180, -88.759, 180, 88.759),
114 new OpenLayers.Size(580, 288));
117 map.zoomToMaxExtent();
121 t.eq( layer.name, null, "layer.name is null after destroy" );
122 t.eq( layer.div, null, "layer.div is null after destroy" );
123 t.eq( layer.map, null, "layer.map is null after destroy" );
124 t.eq( layer.options, null, "layer.options is null after destroy" );
128 function test_loadEvents(t) {
131 var map = new OpenLayers.Map('map');
132 var layer = new OpenLayers.Layer.Image(
133 'Test', '../../img/blank.gif',
134 new OpenLayers.Bounds(-180, -88.759, 180, 88.759),
135 new OpenLayers.Size(580, 288)
140 layer.events.register('loadstart', null, function(obj) {
141 t.ok(obj.object.tile.isLoading, "loadstart triggered while tile is loading");
145 layer.events.register('loadend', null, function(obj) {
149 t.delay_call(0.4,function() {
150 t.eq(delay, true, "registered for loadend");
151 t.eq(layer.tile.isLoading, false, "loadend triggered after tile is loaded");
152 map.destroy(); //tear down
155 map.zoomToMaxExtent();
161 <div id="map" style="width:500px;height:500px"></div>
162 <div id="map2" style="width:100px;height:100px"></div>