Change in osmo-ttcn3-hacks[master]: gbproxy: Add test for DL-UNITDATA

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laforge gerrit-no-reply at lists.osmocom.org
Sun Nov 15 22:29:00 UTC 2020


laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/21171 )


Change subject: gbproxy: Add test for DL-UNITDATA
......................................................................

gbproxy: Add test for DL-UNITDATA

Change-Id: I96d57cef29dd5e724e66767cc23320a5468a3ea3
---
M gbproxy/GBProxy_Tests.ttcn
1 file changed, 38 insertions(+), 0 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/71/21171/1

diff --git a/gbproxy/GBProxy_Tests.ttcn b/gbproxy/GBProxy_Tests.ttcn
index 4b20177..ecaca54 100644
--- a/gbproxy/GBProxy_Tests.ttcn
+++ b/gbproxy/GBProxy_Tests.ttcn
@@ -596,10 +596,48 @@
 	f_cleanup();
 }
 
+/* send uplink-unitdata of a variety of different sizes; expect it to show up on SGSN */
+private function f_TC_dl_unitdata(charstring id) runs on BSSGP_ConnHdlr {
+	var integer i;
+
+	for (i := 0; i < 1024; i := i+1) {
+		var octetstring payload := f_rnd_octstring(i);
+		var template (value) PDU_BSSGP pdu_tx :=
+			ts_BSSGP_DL_UD(g_pars.tlli, payload, omit, ts_BSSGP_IMSI(g_pars.imsi));
+		/* we cannot use pdu_tx as there are some subtle differences in the length field :/ */
+		var template (present) PDU_BSSGP pdu_rx :=
+			tr_BSSGP_DL_UD(g_pars.tlli, payload, tr_BSSGP_IMSI(g_pars.imsi));
+
+		SGSN[0].send(pdu_tx);
+		alt {
+		[] PCU[0].receive(pdu_rx);
+		/* FIXME: Those should be handled before the ConnHdlr is started */
+		[] PCU[0].receive(BssgpStatusIndication:{*,?,BVC_S_UNBLOCKED}) { repeat; }
+		[] PCU[0].receive {
+			setverdict(fail, "PCU Received unexpected");
+			mtc.stop;
+			}
+		}
+	}
+	setverdict(pass);
+}
+
+testcase TC_dl_unitdata() runs on test_CT
+{
+	var BSSGP_ConnHdlr vc_conn;
+	f_init();
+
+	vc_conn := f_start_handler(refers(f_TC_dl_unitdata), testcasename(), g_pcu, g_sgsn, 2);
+	vc_conn.done;
+	/* TODO: start multiple handlers (UEs) on various cells on same and other NSEs */
+
+	f_cleanup();
+}
 
 control {
 	execute( TC_BVC_bringup() );
 	execute( TC_ul_unitdata() );
+	execute( TC_dl_unitdata() );
 }
 
 

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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: I96d57cef29dd5e724e66767cc23320a5468a3ea3
Gerrit-Change-Number: 21171
Gerrit-PatchSet: 1
Gerrit-Owner: laforge <laforge at osmocom.org>
Gerrit-MessageType: newchange
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