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bsc: add TC_mscpool_sccp_n_pcstate_attaches_msc 

Related: I3a0869598b8395601a16d78dbc46eec400c0ea84 (osmo-bsc)
Change-Id: Ib4a5330df30a73e744c316898817b2fa3271d75e
This commit is contained in:
Neels Hofmeyr 2023-04-05 03:50:51 +02:00 committed by neels
parent 2bdc6b6e3e
commit 38632aa4d8
1 changed files with 74 additions and 16 deletions
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90
bsc/BSC_Tests.ttcn
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@ -646,6 +646,8 @@ type component test_CT extends CTRL_Adapter_CT {
/* are we initialized yet */
var boolean g_initialized := false;
var boolean g_handler_mode := false;
/* Osmux is enabled through VTY */
var boolean g_osmux_enabled_cn := false;
var boolean g_osmux_enabled_bts := false;
@ -1210,6 +1212,27 @@ private function f_vty_msc_allow_attach(TELNETasp_PT pt, my_BooleanList allow_at
}
}
private function f_bssap_idx_init(integer bssap_idx) runs on test_CT {
/* Call a function of our 'parent component' RAN_Adapter_CT to start the
* MSC-side BSSAP emulation */
if (g_handler_mode) {
var RanOps ranops := MSC_RanOps;
ranops.use_osmux := g_osmux_enabled_cn;
f_ran_adapter_init(g_bssap[bssap_idx], mp_bssap_cfg[bssap_idx], "VirtMSC", ranops);
connect(self:SCCPLITE_IPA_CTRL, g_bssap[bssap_idx].vc_RAN:CTRL_CLIENT);
f_ran_adapter_start(g_bssap[bssap_idx]);
} else {
f_ran_adapter_init(g_bssap[bssap_idx], mp_bssap_cfg[bssap_idx], "VirtMSC", omit);
connect(self:BSSAP, g_bssap[bssap_idx].vc_SCCP:SCCP_SP_PORT);
f_ran_adapter_start(g_bssap[bssap_idx]);
f_legacy_bssap_reset();
}
}
private function f_bssap_idx_disconnect(integer bssap_idx) runs on test_CT {
f_ran_adapter_cleanup(g_bssap[bssap_idx]);
}
/* global initialization function
* \param nr_bts Number of BTSs we should start/bring up
* \param handler_mode Start an RSL_Emulation_CT component (true) or not (false).
@ -1238,22 +1261,10 @@ function f_init(integer nr_bts := NUM_BTS, boolean handler_mode := false,
f_vty_transceive(BSCVTY, "msc " & int2str(bssap_idx) & " bssmap reset", strict := false);
}
g_handler_mode := handler_mode;
for (bssap_idx := 0; bssap_idx < nr_msc; bssap_idx := bssap_idx+1) {
allow_attach[bssap_idx] := true;
/* Call a function of our 'parent component' RAN_Adapter_CT to start the
* MSC-side BSSAP emulation */
if (handler_mode) {
var RanOps ranops := MSC_RanOps;
ranops.use_osmux := g_osmux_enabled_cn;
f_ran_adapter_init(g_bssap[bssap_idx], mp_bssap_cfg[bssap_idx], "VirtMSC", ranops);
connect(self:SCCPLITE_IPA_CTRL, g_bssap[bssap_idx].vc_RAN:CTRL_CLIENT);
f_ran_adapter_start(g_bssap[bssap_idx]);
} else {
f_ran_adapter_init(g_bssap[bssap_idx], mp_bssap_cfg[bssap_idx], "VirtMSC", omit);
connect(self:BSSAP, g_bssap[bssap_idx].vc_SCCP:SCCP_SP_PORT);
f_ran_adapter_start(g_bssap[bssap_idx]);
f_legacy_bssap_reset();
}
f_bssap_idx_init(bssap_idx);
}
if (mp_enable_lcs_tests) {
@ -9190,8 +9201,7 @@ testcase TC_mscpool_sccp_n_pcstate_detaches_msc() runs on test_CT {
f_ctrs_msc_expect(1, "mscpool:subscr:new");
f_logp(BSCVTY, "disconnecting msc0");
/* Disconnect the first MSC */
f_ran_adapter_cleanup(g_bssap[0]);
f_bssap_idx_disconnect(0);
/* Now round-robin would wrap to the first MSC, but since the first MSC is disconnected, it wraps around to msc
* 2 again. */
@ -9205,6 +9215,53 @@ testcase TC_mscpool_sccp_n_pcstate_detaches_msc() runs on test_CT {
f_shutdown_helper();
}
/* When an MSC point-code gets an SCCP N-PCSTATE saying it is now reachable, immediately trigger RESET and bring up the
* MSC. */
testcase TC_mscpool_sccp_n_pcstate_attaches_msc() runs on test_CT {
f_init(nr_bts := 3, handler_mode := true, nr_msc := 1);
f_sleep(1.0);
/* Control which MSC gets chosen next by the round-robin, otherwise
* would be randomly affected by which other tests ran before this. */
f_vty_transceive(BSCVTY, "mscpool roundrobin next 0");
f_ctrs_msc_init();
/* There is only one MSC, round robin stays on msc0 */
var MSC_ConnHdlr vc_conn1;
var TestHdlrParams pars1 := f_gen_test_hdlr_pars(bssap_idx := 0);
pars1.mscpool.rsl_idx := 0;
pars1.mscpool.l3_info := valueof(ts_LU_REQ(LU_Type_IMSI_Attach, valueof(ts_MI_IMSI_LV('0010100230000001'H)), '00F110'O));
vc_conn1 := f_start_handler(refers(f_tc_mscpool_compl_l3), pars1);
vc_conn1.done;
f_ctrs_msc_expect(0, "mscpool:subscr:new");
var MSC_ConnHdlr vc_conn2;
var TestHdlrParams pars2 := f_gen_test_hdlr_pars(bssap_idx := 0);
pars2.mscpool.rsl_idx := 1;
pars2.mscpool.l3_info := valueof(ts_CM_SERV_REQ(CM_TYPE_MO_CALL, valueof(ts_MI_IMSI_LV('001010023000002'H))));
vc_conn2 := f_start_handler(refers(f_tc_mscpool_compl_l3), pars2);
vc_conn2.done;
f_ctrs_msc_expect(0, "mscpool:subscr:new");
f_logp(BSCVTY, "connecting msc1");
f_vty_msc_allow_attach(BSCVTY, { true, true });
f_bssap_idx_init(1);
f_sleep(1.0);
/* This time round-robin wraps to the second MSC, because it is now online. */
var MSC_ConnHdlr vc_conn4;
var TestHdlrParams pars4 := f_gen_test_hdlr_pars(bssap_idx := 1);
pars4.mscpool.rsl_idx := 2;
pars4.mscpool.l3_info := valueof(ts_PAG_RESP(valueof(ts_MI_IMSI_LV('001010023000003'H))));
vc_conn4 := f_start_handler(refers(f_tc_mscpool_compl_l3), pars4);
vc_conn4.done;
f_ctrs_msc_expect(1, "mscpool:subscr:new");
f_shutdown_helper();
}
/* Allow/Deny emergency calls globally via VTY */
private function f_vty_allow_emerg_msc(boolean allow) runs on test_CT {
f_vty_enter_cfg_msc(BSCVTY, 0);
@ -12509,6 +12566,7 @@ control {
execute( TC_mscpool_no_allow_attach_valid_nri() );
execute( TC_mscpool_sccp_n_pcstate_detaches_msc() );
execute( TC_mscpool_sccp_n_pcstate_attaches_msc() );
}
execute( TC_early_conn_fail() );