Change in osmo-ttcn3-hacks[master]: pcu: add TC_sns_so_bvc_reset_unknown_bvci

[laforge]

laforge has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/23016 )

Change subject: pcu: add TC_sns_so_bvc_reset_unknown_bvci
......................................................................

pcu: add TC_sns_so_bvc_reset_unknown_bvci

Do an SGSN originated reset of signalling BVCI,
then do a SGSN originated reset of an unknown BVCI.

PCU  -X SGSN: BVCI  0 BSSGP-RESET (ignores reset)
PCU <-  SGSN: BVCI  0 BSSGP-RESET
PCU  -> SGSN: BVCI  0 BSSGP-RESET-ACK (with cell information)
PCU  -X SGSN: BVCI 23 BSSGP-RESET (ignores reset, 23 is configured on PCU, 24 is not configured)
PCU <-  SGSN: BVCI 24 BSSGP-RESET (unconfigured BVCI)
PCU  -> SGSN: BVCI 24 BSSGP-STATUS Unknown BVCI

Related: OS#3879
Change-Id: Iea5519b453dd544c5a78b3b16ddb5132d20cf67c
---
M pcu/PCU_Tests_SNS.ttcn
1 file changed, 42 insertions(+), 0 deletions(-)

Approvals:
  laforge: Looks good to me, approved
  Jenkins Builder: Verified



diff --git a/pcu/PCU_Tests_SNS.ttcn b/pcu/PCU_Tests_SNS.ttcn
index c4f6b6e..34aec72 100644
--- a/pcu/PCU_Tests_SNS.ttcn
+++ b/pcu/PCU_Tests_SNS.ttcn
@@ -17,6 +17,7 @@
 import from NS_Emulation all;
 import from NS_Types all;
 import from RAW_NS all;
+import from BSSGP_Types all;
 
 /**********************************************************************************
  * Modern Gb/IP bring-up test cases using IP Sub-Network Service (SNS)
@@ -246,6 +247,46 @@
 	f_clean_ns_codec();
 }
 
+/* Do an SGSN originated BSSGP-Reset of a not-configured BVCI.
+ *
+ * PCU  -X SGSN: BVCI  0 BSSGP-RESET (ignores reset)
+ * PCU <-  SGSN: BVCI  0 BSSGP-RESET
+ * PCU  -> SGSN: BVCI  0 BSSGP-RESET-ACK (with cell information)
+ * PCU  -X SGSN: BVCI 23 BSSGP-RESET (ignores reset, 23 is configured on PCU, 24 is not configured)
+ * PCU <-  SGSN: BVCI 24 BSSGP-RESET (unconfigured BVCI)
+ * PCU  -> SGSN: BVCI 24 BSSGP-STATUS Unknown BVCI
+ */
+testcase TC_sns_so_bvc_reset_unknown_bvci() runs on RAW_Test_CT {
+	f_init_ns_codec(mp_nsconfig);
+	f_init_pcuif();
+	f_incoming_sns_size();
+	f_incoming_sns_config();
+	f_outgoing_sns_config();
+
+	/* wait for one ALIVE cycle, then ACK any further ALIVE in the background */
+	as_rx_alive_tx_ack(oneshot := true);
+	activate(as_rx_alive_tx_ack());
+
+	/* Expect BVC-RESET, but ignore it to prevent a race condition of BVC RESETs */
+	var template PDU_NS pdu := tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BVC_RESET(?, 0, omit));
+	f_ns_exp(pdu, idx := 0);
+	/* SGSN originated BVC-RESET on an uninitialized sign BVC */
+	f_tx_bvc_reset_rx_ack(0, omit, omit, idx := 0);
+
+	/* Expect BVC-RESET PTP BVC, but ignore it to prevent a race condition of BVC RESETs */
+	pdu := tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BVC_RESET(?, mp_gb_cfg.bvc[0].bvci, mp_gb_cfg.bvc[0].cell_id));
+	f_ns_exp(pdu);
+
+	/* Send a BVC-RESET on the wrong BVC */
+	var PDU_BSSGP bssgp_tx := valueof(ts_BVC_RESET(BSSGP_CAUSE_NET_SV_CAP_MOD_GT_ZERO_KBPS, mp_gb_cfg.bvc[0].bvci + 1,
+						       omit));
+	NSCP[0].send(ts_NS_UNITDATA(t_SduCtrlB, 0, enc_PDU_BSSGP(bssgp_tx)));
+	NSCP[0].receive(tr_NS_UNITDATA(t_SduCtrlB, 0, decmatch tr_BSSGP_STATUS(mp_gb_cfg.bvc[0].bvci + 1, BSSGP_CAUSE_BVCI_UNKNOWN, *)));
+	setverdict(pass);
+
+	f_clean_ns_codec();
+}
+
 /* Test adding new IP endpoints at runtime */
 testcase TC_sns_add() runs on RAW_Test_CT {
 	f_sns_bringup_1c1u();
@@ -328,6 +369,7 @@
 	execute( TC_sns_1c1u_separate() );
 	execute( TC_sns_1c1u_so_bvc_reset() );
 	execute( TC_sns_1c1u_so_bvc_reset_too_early() );
+	execute( TC_sns_so_bvc_reset_unknown_bvci() );
 	execute( TC_sns_add() );
 	execute( TC_sns_add_nack() );
 	execute( TC_sns_del() );

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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Iea5519b453dd544c5a78b3b16ddb5132d20cf67c
Gerrit-Change-Number: 23016
Gerrit-PatchSet: 3
Gerrit-Owner: lynxis lazus <lynxis at fe80.eu>
Gerrit-Reviewer: Jenkins Builder
Gerrit-Reviewer: daniel <dwillmann at sysmocom.de>
Gerrit-Reviewer: laforge <laforge at osmocom.org>
Gerrit-CC: pespin <pespin at sysmocom.de>
Gerrit-MessageType: merged
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