MSC_Tests: Test SCCP clearing on release timeout
Provoke a timeout error in the MGCP FSM which then triggers a
release on the CC layer. Ignore this release and let the CC leyer
timeout. The MSC is expected to clear the SCCP connection.
Change-Id: If3e0bee11763f1c6b2cfae91f2a818ff7d0df9e7
Related: OS#2881
Related: OS#2882
diff --git a/msc/MSC_Tests.ttcn b/msc/MSC_Tests.ttcn
index 485fd37..e154911 100644
--- a/msc/MSC_Tests.ttcn
+++ b/msc/MSC_Tests.ttcn
@@ -1703,6 +1703,44 @@
}
}
+/* Test MO Call with no response to RAN-side CRCX or DTAP Release */
+private function f_tc_mo_release_timeout(charstring id, BSC_ConnHdlrPars pars) runs on BSC_ConnHdlr {
+ f_init_handler(pars);
+ var CallParameters cpars := valueof(t_CallParams('12345'H, 0));
+ var MNCC_PDU mncc;
+ var MgcpCommand mgcp_cmd;
+
+ f_perform_lu();
+
+ f_establish_fully(valueof(ts_MI_IMSI_LV(g_pars.imsi)));
+ f_create_mncc_expect(hex2str(cpars.called_party));
+ f_create_mgcp_expect(ExpectCriteria:{omit,omit,omit});
+
+ BSSAP.send(ts_PDU_DTAP_MO(ts_ML3_MO_CC_SETUP(cpars.transaction_id, cpars.called_party)));
+ MNCC.receive(tr_MNCC_SETUP_ind(?, tr_MNCC_number(hex2str(cpars.called_party)))) -> value mncc;
+ cpars.mncc_callref := mncc.u.signal.callref;
+ MNCC.send(ts_MNCC_CALL_PROC_req(cpars.mncc_callref, cpars.mncc_bearer_cap));
+ BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_CALL_PROC(cpars.transaction_id)));
+
+ /* Drop CRCX */
+ MGCP.receive(tr_CRCX) -> value mgcp_cmd;
+
+ /* Drop DTAP Release */
+ BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_RELEASE(cpars.transaction_id)));
+
+ /* Drop resent DTAP Release */
+ BSSAP.receive(tr_PDU_DTAP_MT(tr_ML3_MT_CC_RELEASE(cpars.transaction_id)));
+
+ f_expect_clear(60.0);
+}
+testcase TC_mo_release_timeout() runs on MTC_CT {
+ var BSC_ConnHdlr vc_conn;
+ f_init();
+
+ vc_conn := f_start_handler(refers(f_tc_mo_release_timeout), 40);
+ vc_conn.done;
+}
+
/* TODO:
@@ -1760,6 +1798,7 @@
execute( TC_lu_imsi_auth_tmsi_encr_3_1_no_cm() );
execute( TC_lu_imsi_auth_tmsi_encr_13_2() );
execute( TC_lu_imsi_auth_tmsi_encr_013_2() );
+ execute( TC_mo_release_timeout() );
execute( TC_lu_and_mt_call() );