public void DefaultPermission ()
{
UrlIdentityPermissionAttribute a = new UrlIdentityPermissionAttribute (SecurityAction.Assert);
Assert.IsNull (a.Url, "Url");
// UrlIdentityPermission would throw a ArgumentNullException for a null URL ...
UrlIdentityPermission perm = (UrlIdentityPermission) a.CreatePermission ();
// ... but this works ...
Assert.IsNotNull (perm, "CreatePermission(null url)");
// ... but this doesn't!
string url = perm.Url;
Assert.AreEqual (String.Empty, url, "Url-2");
}