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openlayers/tests/Layer/test_Vector.html

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<html>
<head>
<script src="../../lib/OpenLayers.js"></script>
<script type="text/javascript"><!--
var name = "Vector Layer";
function test_01_Layer_Vector_constructor(t) {
t.plan(3);
var layer = new OpenLayers.Layer.Vector(name);
t.ok(layer instanceof OpenLayers.Layer.Vector, "new OpenLayers.Layer.Vector returns correct object" );
t.eq(layer.name, name, "layer name is correctly set");
t.ok(layer.renderer.CLASS_NAME, "layer has a renderer");
}
function test_02_Layer_Vector_addFeatures(t) {
t.plan(2);
var layer = new OpenLayers.Layer.Vector(name);
var point = new OpenLayers.Geometry.Point(-111.04, 45.68);
var pointFeature = new OpenLayers.Feature.Vector(point);
layer.addFeatures([pointFeature]);
t.eq(layer.features.length, 1, "OpenLayers.Layer.Vector.addFeatures adds something to the array");
t.ok(layer.features[0] == pointFeature, "OpenLayers.Layer.Vector.addFeatures returns an array of features");
}
function test_03_Layer_Vector_removeFeatures(t) {
t.plan(2);
var layer = new OpenLayers.Layer.Vector(name);
var point1 = new OpenLayers.Geometry.Point(-111.04, 45.68);
var pointFeature1 = new OpenLayers.Feature.Vector(layer, point1);
var point2 = new OpenLayers.Geometry.Point(-111.14, 45.78);
var pointFeature2 = new OpenLayers.Feature.Vector(layer, point2);
layer.addFeatures([pointFeature1, pointFeature2]);
var features = layer.removeFeatures([pointFeature1]);
t.ok(layer.features.length == 1, "OpenLayers.Layer.Vector.removeFeatures removes a feature from the features array");
layer.addFeatures([pointFeature1.clone(), pointFeature2.clone()]);
var features = layer.removeFeatures(layer.features);
t.ok(layer.features.length == 0,
"OpenLayers.Layer.Vector.removeFeatures(layer.features) removes all feature from the features array");
}
function test_Layer_Vector_addStyle (t) {
t.plan(2);
layer = new OpenLayers.Layer.Vector(name);
var map = new OpenLayers.Map('map');
map.addLayer(layer);
f = new OpenLayers.Feature.Vector();
t.eq( f.style, null, "Feature style is null by default.");
layer.addFeatures(f);
t.ok( f.style != null, "Feature style is set by layer.");
}
function test_Layer_Vector_drawFeature(t) {
t.plan(4);
var layer = new OpenLayers.Layer.Vector("Test Layer");
var map = new OpenLayers.Map('map');
map.addLayer(layer);
var geometry = new OpenLayers.Geometry.Point(10, 10);
var feature = new OpenLayers.Feature.Vector(geometry);
var f, s;
layer.renderer = {
drawFeature: function(feature, style) {
f = feature;
s = style;
}
};
layer.drawFeature(feature);
t.ok(geometry.equals(f.geometry),
"calls layer.renderer.drawFeature() with feature.geometry");
feature.style = 'exists';
layer.drawFeature(feature);
t.eq(feature.style, s,
"calls layer.renderer.drawFeature() with feature.style");
feature.style = null;
layer.style = 'exists';
layer.drawFeature(feature);
t.eq(layer.style, s,
"given null feature style, uses layer style");
feature.style = 'exists';
layer.style = 'exists';
var customStyle = 'custom';
layer.drawFeature(feature, customStyle);
t.eq(customStyle, s,
"given a custom style, renders with that");
}
function test_Layer_Vector_eraseFeatures(t) {
t.plan(2);
var layer = new OpenLayers.Layer.Vector("Test Layer");
var map = new OpenLayers.Map('map');
map.addLayer(layer);
var geometry = new OpenLayers.Geometry.Point(10, 10);
var feature = new OpenLayers.Feature.Vector(geometry);
var f;
layer.renderer = {
eraseFeatures: function(features) {
f = features[0];
}
};
layer.eraseFeatures([feature]);
t.ok(f, "calls layer.renderer.eraseFeatures");
t.ok(geometry.equals(f.geometry),
"calls layer.renderer.eraseFeatures() given an array of features");
}
function test_Layer_Vector_destroyFeatures (t) {
t.plan(2);
layer = new OpenLayers.Layer.Vector(name);
var map = new OpenLayers.Map('map');
map.addLayer(layer);
var features = [];
for (var i = 0; i < 5; i++) {
features.push(new OpenLayers.Feature.Vector(
new OpenLayers.Geometry.Point(0,0)));
}
layer.addFeatures(features);
t.eq(layer.features.length, 5, "addFeatures adds 5 features");
layer.destroyFeatures();
t.eq(layer.features.length, 0, "destroyFeatures triggers removal");
}
function test_99_Layer_Vector_destroy (t) {
t.plan(1);
layer = new OpenLayers.Layer.Vector(name);
var map = new OpenLayers.Map('map');
map.addLayer(layer);
layer.destroy();
t.eq(layer.map, null, "layer.map is null after destroy");
}
// -->
</script>
</head>
<body>
<div id="map" style="width:500px;height:550px"></div>
</body>
</html>