I was slightly more inclined to think it might be some bored employee somewhere acting in a sort of Robin Hood capacity just because it's unusually accurate and thorough for a test message. I'd expect more like TEST TEST test DFOIUHDFUOHDFOIUHDFROIHDSFOIHDSF LOREM IPSUM 999999.

Sometimes enthusiastic or particularly bored developers do put in the effort to write things out like a real message though.