Testing gprs_llc_is_retransmit.
N(U) = 0, V(UR) = 0 => new
N(U) = 0, V(UR) = 1 => retransmit
N(U) = 0, V(UR) = 1 => retransmit
N(U) = 511, V(UR) = 1 => retransmit
N(U) = 483, V(UR) = 1 => retransmit
N(U) = 482, V(UR) = 1 => retransmit
N(U) = 481, V(UR) = 1 => new
N(U) = 0, V(UR) = 240 => new
N(U) = 0, V(UR) = 511 => new
N(U) = 1, V(UR) = 511 => new
N(U) = 511, V(UR) = 511 => new
N(U) = 510, V(UR) = 511 => retransmit
N(U) = 481, V(UR) = 511 => retransmit
N(U) = 479, V(UR) = 511 => new
Test shift functions
Test GSUP message decoding/encoding
  Testing Send Authentication Info Request
  Testing Send Authentication Info Error
  Testing Send Authentication Info Result
  Testing Update Location Request
  Testing Update Location Error
  Testing Update Location Result
  Testing Location Cancellation Request
  Testing Location Cancellation Error
  Testing Location Cancellation Result
  Testing Purge MS Request
  Testing Purge MS Error
  Testing Purge MS Result
Done.