She does but nothing is proved yet.
I don't see anything wrong with testing her though and IMO, it has nothing to do with her being African or black. It has nothing to do with racism. Many white athletes are being tested too. Semenya's test is weird but it's not because she's black. It's simply because she's weird. When you're honest, you aren't gonna be afraid of any accusation or suspicion.
Byrone, what Chuene has said is saddening because he only looks like someone who wants to win a case by pointing out some supposedly "weak" points of his race, his color. If you're sure that the girl is a girl, why are you bringing up her color and race? Do you, yourself, find these characteristics as her weaknesses? Let them do whatever they want. As I said, if you're right, you're the eventual winner.
I am a woman living in a country in which women are being ignored form many of their absolute rights. My gender is not my weakness, so I don't use it as any excuses because by this, I just insist on my gender being my weak point. If I have something to prove, I try my best to prove it. I hate it when people use their sex, color or nationality in order to catch the world's sympathy.