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osmo-ttcn3-hacks
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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
This commit is contained in:
Philipp Maier 2018-03-15 18:54:13 +01:00
parent f1e02bb46b
commit 94f3f1bfa6
1 changed files with 39 additions and 0 deletions
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39
msc/MSC_Tests.ttcn
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@ -1703,6 +1703,44 @@ testcase TC_cr_before_reset() runs on MTC_CT {
}
}
/* 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 @@ control {
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() );