fixeria has submitted this change. ( https://gerrit.osmocom.org/c/osmo-ttcn3-hacks/+/28445 )

Change subject: BSC_Tests_CBSP: fix f_exp_rsl_etws(): add some guard time ......................................................................

BSC_Tests_CBSP: fix f_exp_rsl_etws(): add some guard time

Recently I noticed sporadic CBSP test case failures on Jenkins:

Timeout waiting for RSL_OSMO_ETWS_CMD (disable) BSC_Tests_CBSP.ttcn:1209 BSC_Tests_CBSP control part BSC_Tests_CBSP.ttcn:1056 TC_cbsp_emerg_write_bts_cgi_cchan_disable

The related timeout is set to 5.0 seconds in f_exp_rsl_etws(), what matches the Warning Period IE sent in CBSP WRITE-REPLACE message.

Adding a debug log printing T.read on receipt of RSL_OSMO_ETWS_CMD reveals that we're cutting it too close: the message arrives just a few milliseconds before the timeout expires.

f_exp_rsl_etws(): T := 4.999196s, remaining 0.000804s f_exp_rsl_etws(): T := 4.998683s, remaining 0.001317s f_exp_rsl_etws(): T := 4.999344s, remaining 0.000656s

Let's increase the timeout value (+0.5s) to avoid sporadic failures.

Change-Id: Ia40a268f9780ffbcfa2bb962d7c1ac25d16193de --- M bsc/BSC_Tests_CBSP.ttcn 1 file changed, 1 insertion(+), 1 deletion(-)

Approvals: pespin: Looks good to me, but someone else must approve osmith: Looks good to me, approved Jenkins Builder: Verified

diff --git a/bsc/BSC_Tests_CBSP.ttcn b/bsc/BSC_Tests_CBSP.ttcn index cba8268..1373002 100644 --- a/bsc/BSC_Tests_CBSP.ttcn +++ b/bsc/BSC_Tests_CBSP.ttcn @@ -992,7 +992,7 @@

private function f_exp_rsl_etws(integer rsl_idx := 0, boolean enabled) runs on cbsp_test_CT { var template (present) octetstring tr_apdu; - timer T := 5.0; + timer T := 5.0 + 0.5; /* +0.5s guard */

if (enabled) { tr_apdu := f_gen_etws_pn(g_cbsp_ser_no, g_cbsp_msg_id);