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hnbgw: Introduce test TC_ps_iu_release_req_rua_disconnect

Change-Id: Id24a5aed5255af77fbbd30521be70700a9bff1c9
---
M hnbgw/HNBGW_Tests.ttcn
M hnbgw/expected-results.xml
2 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn
index 05d5e6a..e15bba4 100644
--- a/hnbgw/HNBGW_Tests.ttcn
+++ b/hnbgw/HNBGW_Tests.ttcn
@@ -1433,6 +1433,47 @@
 	f_shutdown_helper();
 }
 
+/* Same as TC_cs_iu_release_req_rua_disconnect, but with PS RAB */
+private function f_tc_ps_iu_release_req_rua_disconnect(charstring id) runs on ConnHdlr {
+	var RANAP_PDU tx;
+
+	tx := f_build_initial_ue(g_pars);
+	f_iuh2iu_connect(tx);
+
+	f_create_rab_ps();
+
+	RUA.send(ts_RANAP_IuReleaseRequest(ts_RanapCause_radio_rab_preempted));
+	BSSAP.receive(tr_RANAP_IuReleaseRequest(ts_RanapCause_radio_rab_preempted));
+
+	RUA.send(RUA_Disc_Req:{{misc:=unspecified}, omit});
+
+	/* HNBGW tears down related PFCP sessions: */
+	if (g_pars.pfcp_pars.pfcp_enabled) {
+		var PDU_PFCP m := f_pfcp_expect(tr_PFCP_Session_Del_Req(g_pars.pfcp_pars.up_f_seid.seid));
+		PFCP.send(ts_PFCP_Session_Del_Resp(m.sequence_number, g_pars.pfcp_pars.hnbgw_f_seid.seid));
+	}
+
+	/* We cannot guarantee we can send Iu-ReleaseCommand at RANAP_Emulation
+	 * before it receives the RLSD from HNBGW, hence we don't send it. If we
+	 * sent it, it would be ignored by HNBGW since the RUA conn is already
+	 * disconnected:
+	 * BSSAP.send(ts_RANAP_IuReleaseCommand(ts_RanapCause_radio_rab_preempted));
+	 */
+
+	BSSAP.receive(tr_MSC_CONN_PRIM_DISC_IND);
+	/* Let RAN_Emulation some time to answer RLSD with RLC: */
+	f_sleep(1.0);
+}
+testcase TC_ps_iu_release_req_rua_disconnect() runs on test_CT {
+	var ConnHdlr vc_conn;
+	g_num_hnbs := 1;
+	f_init();
+	vc_conn := f_start_handler_with_pars(refers(f_tc_ps_iu_release_req_rua_disconnect), f_TestHdlrParams(9, true));
+	vc_conn.done;
+
+	f_shutdown_helper();
+}
+
 friend function f_tc_ps_rab_assignment(charstring id) runs on ConnHdlr {
 	var RANAP_PDU tx;
 
@@ -2344,6 +2385,7 @@
 	execute(TC_ranap_cs_creq_cref());
 	execute(TC_ranap_ps_creq_cref());
 	execute(TC_cs_iu_release_req_rua_disconnect());
+	execute(TC_ps_iu_release_req_rua_disconnect());
 	execute(TC_ps_rab_assignment());
 
 	execute( TC_mscpool_L3Compl_on_1_cnlink() );
diff --git a/hnbgw/expected-results.xml b/hnbgw/expected-results.xml
index 7bbcdec..70e29e6 100644
--- a/hnbgw/expected-results.xml
+++ b/hnbgw/expected-results.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<testsuite name='Titan' tests='53' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'>
+<testsuite name='Titan' tests='54' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'>
   <testcase classname='HNBGW_Tests' name='TC_hnb_register' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_hnb_register_duplicate' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_hnb_register_duplicate_reuse_sctp_assoc' time='MASKED'/>
@@ -25,6 +25,7 @@
   <testcase classname='HNBGW_Tests' name='TC_ranap_cs_creq_cref' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_ranap_ps_creq_cref' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_cs_iu_release_req_rua_disconnect' time='MASKED'/>
+  <testcase classname='HNBGW_Tests' name='TC_ps_iu_release_req_rua_disconnect' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_ps_rab_assignment' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_mscpool_L3Compl_on_1_cnlink' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_mscpool_L3Complete_by_imsi_round_robin' time='MASKED'/>

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