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hnbgw: Introduce test TC_{cs,ps}_rua_dt_during_sccp_wait_cc

Related: SYS#7453
Change-Id: I97767db5560edf951202c876726d0c52b5b5b49f
---
M hnbgw/HNBGW_Tests.ttcn
M hnbgw/expected-results.xml
2 files changed, 46 insertions(+), 2 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/84/40184/1

diff --git a/hnbgw/HNBGW_Tests.ttcn b/hnbgw/HNBGW_Tests.ttcn
index 28b41d2..743898b 100644
--- a/hnbgw/HNBGW_Tests.ttcn
+++ b/hnbgw/HNBGW_Tests.ttcn
@@ -1567,6 +1567,47 @@
 	f_shutdown_helper();
 }
 
+/* scenario: HNB transmits a RUA DirectTransfer after having transmitted a RUA Connect
+ * (with RANAP payload) and conn is still being established on SCCP side (HNBGW sent CR,
+ * waiting for CC from CN). */
+private function f_tc_rua_dt_during_sccp_wait_cc(charstring id) runs on ConnHdlr {
+	/* HNB->MSC: InitialUE */
+	var RANAP_PDU tx_ranap_pdu := f_build_initial_ue(g_pars);
+	f_iuh2iu_connect(tx_ranap_pdu);
+
+	/* CREQ was received at CN, now HNB decides to retransmit the RANAP PDU (ie. L3/DTAP retrans timeout).
+	 * We expect HNBGW to queue the msg until the SCCP conn is confirmed. */
+	RUA.send(tx_ranap_pdu);
+
+	/* Let some time for RUA DirectTransfer to reach the HNBGW: */
+	f_sleep(1.0);
+
+	/* Now tx SCCP CC from CN to HNBGW: */
+	BSSAP.send(ts_MSC_CONN_PRIM_CONNECT_RES);
+
+	/* now that SCCP conn is connected, HNBGW should forward the previously queued RANAP PDU: */
+	f_bssap_expect(tx_ranap_pdu);
+	f_sleep(1.0); // FIXME: Can probably be dropped.
+}
+private function f_TC_rua_dt_during_sccp_wait_cc(boolean is_ps) runs on test_CT {
+	var ConnHdlr vc_conn;
+	g_num_hnbs := 1;
+	/* Instruct RAN_Emulation to avoid accepting the conn, we'll trigger an
+	 * SCCP CC by sending a N-CONNECT RESP primitive in ConnHdlr. */
+	g_ran_ops.ranap_connect_ind_auto_res := false;
+	f_init();
+
+	vc_conn := f_start_handler_with_pars(refers(f_tc_rua_dt_during_sccp_wait_cc), f_TestHdlrParams(6, is_ps));
+	vc_conn.done;
+
+	f_shutdown_helper();
+}
+testcase TC_cs_rua_dt_during_sccp_wait_cc() runs on test_CT {
+	f_TC_rua_dt_during_sccp_wait_cc(false);
+}testcase TC_ps_rua_dt_during_sccp_wait_cc() runs on test_CT {
+	f_TC_rua_dt_during_sccp_wait_cc(true);
+}
+
 friend function f_tc_ps_rab_assignment(charstring id) runs on ConnHdlr {
 	var RANAP_PDU tx;
 
@@ -1578,7 +1619,6 @@
 
 	f_cn_iu_release_procedure(pfcp_teardown := g_pars.pfcp_pars.pfcp_enabled);
 }
-
 testcase TC_ps_rab_assignment() runs on test_CT {
 	var ConnHdlr vc_conn;
 	g_num_hnbs := 1;
@@ -2603,6 +2643,8 @@
 	execute(TC_cs_rua_disconnect_during_sccp_cr_cc());
 	execute(TC_cs_iu_release_req_rua_disconnect());
 	execute(TC_ps_iu_release_req_rua_disconnect());
+	execute(TC_cs_rua_dt_during_sccp_wait_cc());
+	execute(TC_ps_rua_dt_during_sccp_wait_cc());
 	execute(TC_ps_rab_assignment());
 	execute(TC_ps_rab_assignment_concurrent());
 
diff --git a/hnbgw/expected-results.xml b/hnbgw/expected-results.xml
index 3fca542..3777715 100644
--- a/hnbgw/expected-results.xml
+++ b/hnbgw/expected-results.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0"?>
-<testsuite name='Titan' tests='58' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'>
+<testsuite name='Titan' tests='60' 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'/>
@@ -29,6 +29,8 @@
   <testcase classname='HNBGW_Tests' name='TC_cs_rua_disconnect_during_sccp_cr_cc' 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_cs_rua_dt_during_sccp_wait_cc' time='MASKED'/>
+  <testcase classname='HNBGW_Tests' name='TC_ps_rua_dt_during_sccp_wait_cc' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_ps_rab_assignment' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_ps_rab_assignment_concurrent' time='MASKED'/>
   <testcase classname='HNBGW_Tests' name='TC_mscpool_L3Compl_on_1_cnlink' time='MASKED'/>

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