+(deftest ui.1 (umlisp::parse-cui "C0002341") 2341)
+(deftest ui.2 (umlisp::parse-lui "L0002341") 2341)
+(deftest ui.3 (umlisp::parse-sui "S0000000") 0)
+(deftest ui.4 (umlisp::parse-tui "T123") 123)
+(deftest ui.5 (fmt-cui 2341) "C0002341")
+(deftest ui.6 (fmt-lui 2341) "L0002341")
+(deftest ui.7 (fmt-sui 2341) "S0002341")
+(deftest ui.8 (fmt-lui 231) "T231")
+(deftest ui.9 (umlisp::make-cuisui 5 11) 50000011)
+(deftest ui.10 (umlisp::decompose-cuisui 50000011) 5 11)