function testWhiteListLabels()
{
$layer = new OLLayer();
$layer->XMLWhitelist = "attribute1,attribute2,attribute3";
$layer->Labels = "Label1,Label2,Label3";
$label = $layer->WhiteListLabels('attribute1');
$this->assertEquals($label, "Label1");
$label = $layer->WhiteListLabels('attribute2');
$this->assertEquals($label, "Label2");
$label = $layer->WhiteListLabels('attribute3');
$this->assertEquals($label, "Label3");
$label = $layer->WhiteListLabels('attribute4');
$this->assertEquals($label, "attribute4");
}
