osmith has uploaded this change for review. ( 
https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/14604


Change subject: RTP_Emulation: allow expecting connection refused
......................................................................

RTP_Emulation: allow expecting connection refused

Prepare for upcoming connection timeout test, where we want to run into
connection refused.

Change-Id: Id6365bc59e19368a87b951367742a0b7cc5e9574
---
M library/RTP_Emulation.ttcn
1 file changed, 43 insertions(+), 2 deletions(-)



  git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks 
refs/changes/04/14604/1

diff --git a/library/RTP_Emulation.ttcn b/library/RTP_Emulation.ttcn
index 31bf68a..6539da7 100644
--- a/library/RTP_Emulation.ttcn
+++ b/library/RTP_Emulation.ttcn
@@ -105,6 +105,9 @@
        var uint32_t g_rx_last_ts;

        var IuUP_Entity g_iuup_ent; // := valueof(t_IuUP_Entity(1));
+
+       var boolean g_conn_refuse_expect := false;
+       var boolean g_conn_refuse_received := false;
 }

 type enumerated RtpemMode {
@@ -175,9 +178,12 @@
 signature RTPEM_mode(in RtpemMode mode);
 signature RTPEM_configure(in RtpemConfig cfg);
 signature RTPEM_stats_get(out RtpemStats stats, in boolean rtcp);
+signature RTPEM_conn_refuse_expect(in boolean expect);
+signature RTPEM_conn_refuse_received(out boolean received);

 type port RTPEM_CTRL_PT procedure {
-       inout RTPEM_bind, RTPEM_connect, RTPEM_mode, RTPEM_configure, 
RTPEM_stats_get;
+       inout RTPEM_bind, RTPEM_connect, RTPEM_mode, RTPEM_configure, 
RTPEM_stats_get, RTPEM_conn_refuse_expect,
+             RTPEM_conn_refuse_received;
 } with { extension "internal" };

 function f_rtpem_bind(RTPEM_CTRL_PT pt, in HostName local_host, inout 
PortNumber local_port) {
@@ -299,6 +305,21 @@
        }
 }

+function f_rtpem_conn_refuse_expect(RTPEM_CTRL_PT pt) {
+       pt.call(RTPEM_conn_refuse_expect:{true}) {
+               [] pt.getreply(RTPEM_conn_refuse_expect:{true}) {};
+       }
+}
+
+function f_rtpem_conn_refuse_verify(RTPEM_CTRL_PT pt) {
+       pt.call(RTPEM_conn_refuse_received:{?}) {
+               [] pt.getreply(RTPEM_conn_refuse_received:{true}) {};
+               [] pt.getreply(RTPEM_conn_refuse_received:{false}) {
+                       setverdict(fail, "Expected to receive connection 
refused");
+               };
+       }
+}
+
 template PDU_RTP ts_RTP(BIT32_BO_LAST ssrc, INT7b pt, LIN2_BO_LAST seq, 
uint32_t ts,
                        octetstring payload, BIT1 marker := '0'B) := {
        version := 2,
@@ -348,6 +369,11 @@
        tr_rtp.msg := { rtp := ? };
        tr_rtcp.msg := { rtcp := ? };

+       var template ASP_Event tr_conn_refuse := {result := { errorCode := ?,
+                                                             connId := ?,
+                                                             os_error_code := 
?,
+                                                             os_error_text := 
"Connection refused"}};
+
        g_iuup_ent := valueof(t_IuUP_Entity(g_cfg.iuup_tx_init));

        while (true) {
@@ -448,7 +474,12 @@
                                CTRL.reply(RTPEM_stats_get:{g_stats_rtp, 
is_rtcp});
                        }
                }
-
+               [] CTRL.getcall(RTPEM_conn_refuse_expect:{?}) -> 
param(g_conn_refuse_expect) {
+                       
CTRL.reply(RTPEM_conn_refuse_expect:{g_conn_refuse_expect});
+               }
+               [] CTRL.getcall(RTPEM_conn_refuse_received:{?}) {
+                       
CTRL.reply(RTPEM_conn_refuse_received:{g_conn_refuse_received});
+               }


                /* simply ignore any RTTP/RTP if receiver not enabled */
@@ -491,6 +522,16 @@
                                                                
lengthof(g_cfg.tx_fixed_payload);
                }

+               /* connection refused */
+               [g_conn_refuse_expect] RTP.receive(tr_conn_refuse) {
+                       log("Connection refused (expected)");
+                       g_conn_refuse_received := true;
+               }
+               [not g_conn_refuse_expect] RTP.receive(tr_conn_refuse) {
+                       setverdict(fail, "Connection refused (unexpected)");
+                       mtc.stop;
+               }
+
                /* fail on any unexpected messages */
                [] RTP.receive {
                        setverdict(fail, "Received unexpected type from RTP");

--
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Gerrit-Project: osmo-ttcn3-hacks
Gerrit-Branch: master
Gerrit-Change-Id: Id6365bc59e19368a87b951367742a0b7cc5e9574
Gerrit-Change-Number: 14604
Gerrit-PatchSet: 1
Gerrit-Owner: osmith <[email protected]>
Gerrit-MessageType: newchange

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