There is a real oral test but it only stays in the body for max 4 hours. So you have to drink a lot of it. It is test with 17AA, here is some more info on it...
ORAL TESTOSTERONE
Chemically unbound testosterone, if taken orally, is not effective for masculinization since it is immediately deactivated by the liver. However, two chemically-modified forms of testosterone have been successfully shown to induce masculine secondary sex characteristics when taken orally: methyltestosterone and testosterone undecanoate.
Methyltestosterone (C-17 alpha methylated testosterone)
Methyltestosterone is one of the earliest available oral testosterones. Its chemical structure is the hormone testosterone with an added methyl group at the c-17 alpha position of the molecule. The use of oral c-17 alpha methylated testosterone for masculinization is obsolete due to its toxicity to the liver. As such, methyltestosterone is not recommended for FTM hormone therapy. Brand names include "Metesto," "Methitest," "Testred," "Oreton Methyl," and "Android."
Testosterone Undecanoate
Testosterone undecanoate is not a c-17 alpha alkylated hormone. Therefore, it is considered a safer oral form of testosterone. Additionally, it is absorbed through the small intestine into the lymphatic system, posing less burden on the liver. Brand names for testosterone undecanoate include "Andriol," "Androxon," "Understor," "Restandol," and "Restinsol." It is not available in the United States.
One disadvantage of orally administered undecanoate is that it is eliminated from the body very quickly, usually in 3-4 hours. Thus, frequent administration is necessary-- usually between 3-6 capsules a day. This can prove to be quite expensive when compared to injectable testosterone.
Finally, when used in FTM hormone therapy, testosterone undecanoate has not always been successful in suppression of menstruation.