From b9a7bbf5374d96654f8fca24046b5e71947645d0 Mon Sep 17 00:00:00 2001
From: Vadim Yanitskiy <vyanitskiy@sysmocom.de>
Date: Tue, 8 Dec 2020 19:27:51 +0100
Subject: [PATCH] BTS_Tests_OML: add new test case TC_ipa_rsl_connect_nack

Currently osmo-bts seems to be sending IPA RSL Connect ACK
unconditionally, even if the remote peer is not reachable.

Change-Id: Ibfa58f670401907801f610578dd9b4ebf155a83a
---
 bts/BTS_Tests_OML.ttcn | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/bts/BTS_Tests_OML.ttcn b/bts/BTS_Tests_OML.ttcn
index 396ed3814..6770dab42 100644
--- a/bts/BTS_Tests_OML.ttcn
+++ b/bts/BTS_Tests_OML.ttcn
@@ -589,6 +589,30 @@ testcase TC_initial_state_reports() runs on BSC_OML_CT {
 	}
 }
 
+/* Make sure that the IUT sends RSL Connect NACK when the remote is not reachable. */
+testcase TC_ipa_rsl_connect_nack() runs on BSC_OML_CT {
+	timer T := 2.0;
+
+	f_init_oml(testcasename());
+
+	/* Most likely, nobody is listening to this port */
+	OML.send(ts_OML_IPA_RslConnect(0, 65535));
+
+	T.start;
+	alt {
+	[] OML.receive(tr_OML_IPA_MsgType(NM_MT_IPACC_RSL_CONNECT_NACK)) {
+		setverdict(pass);
+		}
+	[] OML.receive(tr_OML_IPA_MsgType(NM_MT_IPACC_RSL_CONNECT_ACK)) {
+		setverdict(fail, "RSL Connect ACK is not expected");
+		}
+	[] OML.receive { repeat; }
+	[] T.timeout {
+		setverdict(fail, "Timeout waiting for RSL Connect NACK");
+		}
+	}
+}
+
 
 control {
 	execute( TC_wrong_mdisc() );
@@ -606,6 +630,7 @@ control {
 	execute( TC_ts_opstart() );
 	execute( TC_ts_opstart_noattr() );
 	execute( TC_initial_state_reports() );
+	execute( TC_ipa_rsl_connect_nack() );
 }
 
 /* BTS: