URI siteXrdsUri = URI.create("http://example.com/xrds");
FetchRequest httpRequest = FetchRequest.createGetRequest(siteXrdsUri);
expect(verifier.verify(isA(byte[].class), (String) isNull()))
.andStubThrow(new XmlSimpleSignException("no signature"));
expect(fetcher.fetch(httpRequest)).andReturn(new FakeResponse(SITE_XRD));
String userXrdsUri = "https://www.google.com/accounts/o8/user-xrds?uri="
+ URLEncoder.encode(user.getIdentifier(), "UTF-8");