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osmo-ttcn3-hacks
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Vadim Yanitskiy 6be4cf414b BSC_Tests: fix TC_lost_sdcch_during_assignment (SCCPlite) 
When running ttcn3-bsc-test against osmo-bsc in SCCPlite mode,
TC_lost_sdcch_during_assignment fails with the following output:

  Local verdict of MTC: fail reason: "Timeout of T_guard"
  Final verdict of PTC: fail reason: "Unexpected DLCX received"

One key problem is that in f_TC_lost_sdcch_during_assignment() we
expect to receive a DLCX message on port MGCP, but somehow it gets
caught by the as_Media_mgw earlier than we attempt to receive it.

* Fix this race condition by activating the as_Media_mgw with
  fail_on_dlcx := false, so that it does not catch DLCX messages.

Another problem is that for SCCPlite we're running the MGCP_Emulation
component with multi_conn_mode=true, so that all MGCP messages are
arriving at port MGCP_MULTI (not MGCP) wrapped into MGCP_RecvFrom.

* Expect the DLCX message on either of the two ports depending
  on the value of g_pars.aoip (AoIP or SCCPlite mode).

This change makes BSC_Tests.TC_lost_sdcch_during_assignment pass.

Change-Id: If4807d3d7d196682f7f22732ad47bcbb72858ed3
 		2022-06-04 22:14:01 +06:00
..
BSC_Tests.cfg BSC_Tests.cfg: also execute LCLS test cases 2021-12-13 16:17:45 +00:00
BSC_Tests.default StatsD_Checker: Enable by default 2021-02-26 12:42:35 +01:00
BSC_Tests.ttcn BSC_Tests: fix TC_lost_sdcch_during_assignment (SCCPlite) 2022-06-04 22:14:01 +06:00
BSC_Tests_CBSP.ttcn bsc: Increase test coverage for CBSP emergency broadcasts 2022-04-27 18:39:56 +02:00
BSC_Tests_LCLS.ttcn library/RSL_Types: use OCT4 for local/remote address fields 2021-07-05 12:09:07 +00:00
BSC_Tests_VAMOS.cfg bsc-VAMOS: add cfg files to run BSC_Tests_VAMOS locally 2021-06-05 20:24:35 +00:00
BSC_Tests_VAMOS.ttcn bsc vamos: ensure lchan state in some places 2022-02-08 16:35:34 +00:00
MSC_ConnectionHandler.ttcn bsc: as_Media_mgw: fail on DLCX 2022-04-07 14:18:28 +00:00
README.md bsc: Add statsd checker and use it in TC_assignment_sign 2020-08-13 15:02:15 +00:00
README.txt bsc: add TC_stats_conn_fail 2021-08-27 08:24:23 +00:00
expected-results.xml bsc: add new testcase TC_srvcc_eutran_to_geran_a5_3 2022-03-16 12:47:54 +00:00
gen_links.sh bsc: Add Lb interface support 2020-10-13 08:43:10 +00:00
osmo-bsc-vamos.cfg bsc/osmo-bsc-vamos.cfg: sync logging config with osmo-bsc.cfg 2021-12-14 12:59:04 +00:00
osmo-bsc.cfg bsc/osmo-bsc.cfg: change logging level nm info -> notice 2022-05-29 20:29:50 +06:00
osmo-stp.cfg bsc/osmo-{bsc,stp}.cfg: enable extended timestamp in logging 2021-12-14 12:59:04 +00:00
regen_makefile.sh regen_makefile.sh: set executable name explicitly 2021-10-13 11:12:22 +02:00

README.md

BSC_Tests.ttcn

  • external interfaces
    • A-bis side: RSL (emulates BTS-side client) (OML handled by osmo-bts-omldummy)
    • A-side (emulates MSC-side)
      • BSSAP/SCCP/M3UA (AoIP)
      • BSSAP/SCCP/IPA (SCCPLite)
    • MGW side: MGCP (emulates MGW side)
    • VTY
    • CTRL
    • StatsD

{% dot bsc_tests.svg digraph G { graph [label="AoIP", labelloc=t, fontsize=30]; rankdir=LR; { rank=same; BTS; STP; }; BSC [label="IUT\nosmo-bsc",shape="box"]; ATS [label="ATS\nBSC_Tests.ttcn"]; BTS [label="osmo-bts-omldummy\nOML only"];

BTS -> BSC [label="A-bis OML"]; ATS -> BSC [label="A-bis RSL"]; ATS -> BSC [label="CTRL"]; ATS -> BSC [label="VTY"]; BSC -> ATS [label="StatsD"]; ATS -> STP [label="A BSSAP\nSCCP/M3UA"]; BSC -> STP [label="A BSSAP\nSCCP/M3UA"]; } %}

{% dot bsc_tests_sccplite.svg digraph G { graph [label="SCCPLite", labelloc=t, fontsize=30]; rankdir=LR; BSC [label="IUT\nosmo-bsc",shape="box"]; ATS [label="ATS\nBSC_Tests.ttcn"]; BTS [label="osmo-bts-omldummy\nOML only"];

BTS -> BSC [label="A-bis OML"]; ATS -> BSC [label="A-bis RSL"]; ATS -> BSC [label="CTRL"]; ATS -> BSC [label="VTY"]; BSC -> ATS [label="StatsD"]; ATS -> BSC [label="A BSSAP\nSCCP/IPA"]; } %}