MSC_Tests.ttcn: introduce TC_gsup_mt_sms_rp_mr

The idea of this test case is to verify SM-RP-MR assignment for
a few MT SMS being sent over GSUP. Basically, the algorythm is
the following:

  1.0 send the 1st SMS using MT-ForwardSM-Req on GSUP,
  1.1 expect Paging Request on RAN,
  1.2 establish a RAN connection,
  1.3 expect CP-DATA/RP-DATA for the 1st SMS,

  2.0 send the 2nd SMS using MT-ForwardSM-Req on GSUP,
  2.1 expect CP-DATA/RP-DATA for the 2nd SMS,

  3.0 compare both SM-RP-MR values assigned by the MSC,
  3.1 send CP-DATA/RP-ACK for both 1st and 2nd SMS messages,
  3.2 expect MT-ForwardSM-Res for both 1st and 2nd SMS messages.

The SM-RP-MR values for both 1st and 2nd messages shall not match.

Change-Id: I3a52d44f4abde9b6b471b9108c1cee905884c9bc
2 files changed