It's not that simple as you can get stuff like the SRY gene (testicles etc) move from Y to X as an error and then you are XX with testicles (usually small and sometimes internal) and mostly male characteristics, that is called XX male syndrome. However typically with that you also have male external genitalia so that doesn't seem to be her issue.
I do think she is XY as she has testicles (and I think this was admitted to?) and other than the above syndrome I'm not sure you'll get testicles if XX.
Allegedly the test results were leaked but I haven't seen them so if that's true, someone should post a link