pespin has uploaded this change for review. ( 
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/14609


Change subject: bsc: Do proper chan release in TC_ho_out_fail_no_ho_detect
......................................................................

bsc: Do proper chan release in TC_ho_out_fail_no_ho_detect

BSC waits to receive a ClearCommand in response to its ClearRequest
before it starts tearing down the MGCP conn on the MSC-side of the MGW
endpoint.

As a result, expected DLCX was not being sent which made test fail.

However, currently test still fails because current osmo-bsc master
sends a repeated ClearRequest message in this scenario.

Related: OS#4078
Change-Id: Ic398896147a0b6b04ffeae56a23d25783b2b17fe
---
M bsc/BSC_Tests.ttcn
1 file changed, 13 insertions(+), 11 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks 
refs/changes/09/14609/1

diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index f9609ba..88df9bc 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -2893,7 +2893,7 @@
 }

 /* Expecting MGCP to DLCX the endpoint's two connections: towards BTS and 
towards MSC */
-private function f_expect_dlcx_conns(boolean exp_clear_cmpl := true) runs on 
MSC_ConnHdlr {
+private function f_expect_dlcx_conns() runs on MSC_ConnHdlr {
        var MgcpCommand mgcp;
        var template MgcpResponse mgcp_resp;
        var MGCP_RecvFrom mrf;
@@ -2923,9 +2923,7 @@
                };
        }

-       if (exp_clear_cmpl) {
-               BSSAP.receive(tr_BSSMAP_ClearComplete);
-       }
+       BSSAP.receive(tr_BSSMAP_ClearComplete);
 }

 private function f_tc_ho_out_of_this_bsc(charstring id) runs on MSC_ConnHdlr {
@@ -2978,7 +2976,7 @@
        var BssmapCause cause := enum2int(cause_val);
        BSSAP.send(ts_BSSMAP_ClearCommand(cause));

-       f_expect_dlcx_conns(true);
+       f_expect_dlcx_conns();
        setverdict(pass);
        f_sleep(1.0);
 }
@@ -3171,6 +3169,7 @@
         * RR should be released and Clear Request should go to the MSC. */
 
        var MgcpCommand mgcp;
+       var PDU_BSSAP rx_clear_request;
        interleave {
        [] RSL.receive(tr_RSL_DEACT_SACCH(g_chan_nr)) {
                        log("Got Deact SACCH");
@@ -3182,12 +3181,15 @@
                        log("Got RF Chan Rel");
                        RSL.send(ts_RSL_RF_CHAN_REL_ACK(g_chan_nr));
                }
-       [] BSSAP.receive(tr_BSSMAP_ClearRequest) {
+       [] BSSAP.receive(tr_BSSMAP_ClearRequest) -> value rx_clear_request {
                        log("Got BSSMAP Clear Request");
+                       /* Instruct BSC to clear channel */
+                       var BssmapCause cause := 
bit2int(rx_clear_request.pdu.bssmap.clearRequest.cause.causeValue);
+                       BSSAP.send(ts_BSSMAP_ClearCommand(cause));
                }
        }

-       f_expect_dlcx_conns(false);
+       f_expect_dlcx_conns();

        setverdict(pass);
        f_sleep(1.0);
@@ -3332,7 +3334,7 @@
        var BssmapCause cause := enum2int(cause_val);
        BSSAP.send(ts_BSSMAP_ClearCommand(cause));

-       f_expect_dlcx_conns(true);
+       f_expect_dlcx_conns();
        setverdict(pass);
        f_sleep(1.0);

@@ -3414,7 +3416,7 @@
        var BssmapCause cause := enum2int(cause_val);
        BSSAP.send(ts_BSSMAP_ClearCommand(cause));

-       f_expect_dlcx_conns(true);
+       f_expect_dlcx_conns();
        setverdict(pass);
        f_sleep(1.0);
 }
@@ -3493,7 +3495,7 @@
        var BssmapCause cause := enum2int(cause_val);
        BSSAP.send(ts_BSSMAP_ClearCommand(cause));

-       f_expect_dlcx_conns(true);
+       f_expect_dlcx_conns();
        setverdict(pass);
        f_sleep(1.0);

@@ -3566,7 +3568,7 @@
                var BssmapCause cause := 
bit2int(rx_clear_request.pdu.bssmap.clearRequest.cause.causeValue);
                BSSAP.send(ts_BSSMAP_ClearCommand(cause));
        };
-       f_expect_dlcx_conns(true);
+       f_expect_dlcx_conns();
        setverdict(pass);
        f_sleep(1.0);
 }

--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Ic398896147a0b6b04ffeae56a23d25783b2b17fe
Gerrit-Change-Number: 14609
Gerrit-PatchSet: 1
Gerrit-Owner: pespin <[email protected]>
Gerrit-MessageType: newchange

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