function testWhiteList()
 {
     $layer = new OLLayer();
     // matching attributes
     $XMlTag = "<ms::attribute>something</ms:attribute>";
     $keywords = "ms::attribute";
     $resp = $layer->WhiteList($XMlTag, $keywords);
     $this->assertTrue($resp);
     // not matching attributes
     $XMlTag = "<ms::attribute>something</ms:attribute>";
     $keywords = "ms::Theattribute";
     $resp = $layer->WhiteList($XMlTag, $keywords);
     $this->assertFalse($resp);
 }