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<!DOCTYPE html>
<html>
<head>
<script src="../OLLoader.js"></script>
<script type="text/javascript">
function test_ZoomIn_constructor (t) {
t.plan( 2 );
// setup
var control = new OpenLayers.Control.ZoomIn();
// tests
//
t.ok(
control instanceof OpenLayers.Control.ZoomIn,
"new OpenLayers.Control.ZoomIn returns object"
);
t.eq(
control.displayClass, "olControlZoomIn",
"displayClass is correct"
);
// tear down
control.destroy();
}
function test_ZoomIn_type (t) {
t.plan( 1 );
// setup
var control = new OpenLayers.Control.ZoomIn();
// tests
//
t.eq(
control.type,
OpenLayers.Control.TYPE_BUTTON,
"ZoomIn control is of type OpenLayers.Control.TYPE_BUTTON"
);
// tear down
control.destroy();
}
function test_ZoomIn_trigger (t) {
t.plan( 2 );
// set up
var control = new OpenLayers.Control.ZoomIn(),
zoomlevel = 5,
map = new OpenLayers.Map("map", {
allOverlays: true,
layers: [
new OpenLayers.Layer.Vector()
],
center: new OpenLayers.LonLat(1,1),
zoom: zoomlevel
}),
oldZoom;
oldZoom = map.getZoom();
// tests
//
// trigger the control before it is being added,
// nothing should change
control.trigger();
t.eq(
oldZoom,
zoomlevel,
'Calling trigger on a non added control doesn\'t do anything ' +
'(map zoom is ' + oldZoom + ').'
);
// now lets add the control
map.addControl(control);
// trigger it again, now the map should have a different extent
control.trigger();
t.eq(
map.getZoom(),
zoomlevel + 1,
'Calling trigger on a added control changes the map zoom ' +
'(map zoom was ' + zoomlevel +
' and is now ' + map.getZoom() + ').'
);
// tear down
control.destroy();
map.destroy();
}
</script>
</head>
<body>
<div id="map" style="width: 1000px; height: 1000px;"></div>
</body>
</html>
|
