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-rw-r--r--misc/openlayers/tests/Strategy/Cluster.html148
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diff --git a/misc/openlayers/tests/Strategy/Cluster.html b/misc/openlayers/tests/Strategy/Cluster.html
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@@ -1,148 +0,0 @@
-<html>
-<head>
- <script src="../OLLoader.js"></script>
- <script type="text/javascript">
-
- function test_activate(t) {
- t.plan(2);
-
- var strategy = new OpenLayers.Strategy.Cluster();
- t.eq(strategy.active, false, "not active after construction");
-
- var layer = new OpenLayers.Layer.Vector("Vector Layer", {
- strategies: [strategy]
- });
- var map = new OpenLayers.Map('map');
- map.addLayer(layer);
-
- t.eq(strategy.active, true, "active after adding to map");
- }
-
- function test_clusters(t) {
- t.plan(22);
-
- function featuresEq(got, exp) {
- var eq = false;
- if(got instanceof Array && exp instanceof Array) {
- if(got.length === exp.length) {
- for(var i=0; i<got.length; ++i) {
- if(got[i] !== exp[i]) {
- console.log(got[i], exp[i]);
- break;
- }
- }
- eq = (i == got.length);
- }
- }
- return eq;
- }
-
- var strategy = new OpenLayers.Strategy.Cluster();
- var layer = new OpenLayers.Layer.Vector("Vector Layer", {
- strategies: [strategy],
- isBaseLayer: true
- });
- var map = new OpenLayers.Map('map', {
- resolutions: [4, 2, 1],
- maxExtent: new OpenLayers.Bounds(-40, -40, 40, 40),
- zoomMethod: null
- });
- map.addLayer(layer);
-
- // create features in a line, 1 unit apart
- var features = new Array(80);
- for(var i=0; i<80; ++i) {
- features[i] = new OpenLayers.Feature.Vector(
- new OpenLayers.Geometry.Point(-40 + i, 0)
- );
- }
-
- // add one additional feature, with no geometry - just to confirm it doesn't break things
- features.push(new OpenLayers.Feature.Vector());
-
- layer.addFeatures(features);
- map.setCenter(new OpenLayers.LonLat(0, 0), 0);
-
- // resolution 4
- // threshold: 4 * 20 = 80 units
- // one cluster
- t.eq(layer.features.length, 1, "[4] layer has one cluster");
- t.ok(featuresEq(layer.features[0].cluster, features.slice(0, 80)), "[4] cluster includes all features with geometries");
-
- // resolution 2
- // threshold: 2 * 20 = 40 units
- // two clusters (41 and 39) - first cluster includes all features within 40 units of the first (0-40 or 41 features)
- map.zoomIn();
- t.eq(layer.features.length, 2, "[2] layer has two clusters");
- t.ok(featuresEq(layer.features[0].cluster, features.slice(0, 41)), "[2] first cluster includes first 41 features");
- t.ok(featuresEq(layer.features[1].cluster, features.slice(41, 80)), "[2] second cluster includes last 39 features");
-
- // resolution 1
- // threshold: 1 * 20 = 20 units
- // four clusters (21, 21, 21, and 17)
- map.zoomIn();
- t.eq(layer.features.length, 4, "[1] layer has four clusters");
- t.ok(featuresEq(layer.features[0].cluster, features.slice(0, 21)), "[1] first cluster includes first 21 features");
- t.ok(featuresEq(layer.features[1].cluster, features.slice(21, 42)), "[1] second cluster includes second 21 features");
- t.ok(featuresEq(layer.features[2].cluster, features.slice(42, 63)), "[1] third cluster includes third 21 features");
- t.ok(featuresEq(layer.features[3].cluster, features.slice(63, 80)), "[1] fourth cluster includes last 17 features");
-
- // zoom out and back in to test threshold property (21)
- map.zoomOut();
- strategy.threshold = 21;
- map.zoomIn();
- t.eq(layer.features.length, 20, "[1-threshold 21] layer has 20 clusters");
- t.ok(featuresEq(layer.features[0].cluster, features.slice(0, 21)), "[1-threshold 21] first cluster includes first 21 features");
- t.ok(featuresEq(layer.features[1].cluster, features.slice(21, 42)), "[1-threshold 21] second cluster includes second 21 features");
- t.ok(featuresEq(layer.features[2].cluster, features.slice(42, 63)), "[1-threshold 21] third cluster includes third 21 features");
- t.ok(featuresEq(layer.features.slice(3, 20), features.slice(63, 80)), "[1-threshold 21] last 17 features are not clustered");
-
- // zoom out and back in to test high threshold
- map.zoomOut();
- strategy.threshold = 100; // clusters must contain 100 features or more
- map.zoomIn();
- // the one feature with no geometry is not added to the layer
- t.eq(layer.features.length, features.length-1, "[1-threshold 100] layer has " + (features.length-1) + " clusters");
- t.ok(featuresEq(layer.features, features.slice(0, 80)), "[1-threshold 100] layer has all features with geometry");
-
- // remove features and zoom
- strategy.threshold = 1;
- map.setCenter(new OpenLayers.LonLat(0, 0), 0);
- t.eq(strategy.features.length, 81,
- "[remove features] cluster has cache");
- layer.removeAllFeatures();
- t.eq(layer.features.length, 0,
- "[remove features] layer has no features after remove");
- t.ok(!strategy.features,
- "[remove features] cluster has no cache after remove");
- map.zoomIn();
- t.eq(layer.features.length, 0,
- "[remove features] layer has no features after zoom");
- t.ok(!strategy.features,
- "[remove features] cluster has no cache after zoom");
-
- map.destroy();
- }
-
- function test_deactivate(t) {
- t.plan(2);
-
- var strategy = new OpenLayers.Strategy.Cluster();
- var layer = new OpenLayers.Layer.Vector("Vector Layer", {
- strategies: [strategy]
- });
- var map = new OpenLayers.Map('map');
- map.addLayer(layer);
-
- t.eq(strategy.active, true, "active after adding to map");
-
- map.removeLayer(layer);
- t.eq(strategy.active, false, "not active after removing from map");
- }
-
- </script>
-</head>
-<body>
- <div id="map" style="width: 400px; height: 200px" />
-</body>
-</html>