<p>Harald Welte has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.osmocom.org/14169">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">bts: Add tests for CCCH LOAD IND (RACH)<br><br>Add three BTS_Tests.ttcn test cases for verifying the BTS behavior<br>regarding CCCH LOAD IND (RACH).<br><br>Related: OS#3750<br>Change-Id: I6c9dee1d7d3eaa218fdce7ebb8e334858aedb736<br>---<br>M bts/BTS_Tests.ttcn<br>1 file changed, 129 insertions(+), 2 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.osmocom.org:29418/osmo-ttcn3-hacks refs/changes/69/14169/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn</span><br><span>index 0eba242..27ed81c 100644</span><br><span>--- a/bts/BTS_Tests.ttcn</span><br><span>+++ b/bts/BTS_Tests.ttcn</span><br><span>@@ -1269,6 +1269,132 @@</span><br><span> Misc_Helpers.f_shutdown(__BFILE__, __LINE__);</span><br><span> }</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+private function f_vty_load_ind_thresh(integer period := 10, integer bts_nr := 0) runs on test_CT {</span><br><span style="color: hsl(120, 100%, 40%);">+ var charstring bts_str := "bts " & int2str(bts_nr);</span><br><span style="color: hsl(120, 100%, 40%);">+ f_vty_config2(BSCVTY, {"network", bts_str}, "ccch load-indication-threshold " & int2str(period));</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* empirical value: Number of RACH slots per reporting interval (1s) on combined CCCH */</span><br><span style="color: hsl(120, 100%, 40%);">+private template integer tr_rach_slots_per_interval := (90 .. 130);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* Expect 0 RACH load on an idle BTS that has just started up */</span><br><span style="color: hsl(120, 100%, 40%);">+testcase TC_rach_load_idle_thresh0() runs on test_CT {</span><br><span style="color: hsl(120, 100%, 40%);">+ var ASP_RSL_Unitdata rx_ud;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ f_init_vty_bsc();</span><br><span style="color: hsl(120, 100%, 40%);">+ /* send load indications even at 0% load */</span><br><span style="color: hsl(120, 100%, 40%);">+ f_vty_load_ind_thresh(0);</span><br><span style="color: hsl(120, 100%, 40%);">+ f_vty_transceive(BSCVTY, "drop bts connection 0 oml");</span><br><span style="color: hsl(120, 100%, 40%);">+ f_sleep(2.0);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ f_init();</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ timer T := 5.0;</span><br><span style="color: hsl(120, 100%, 40%);">+ T.start;</span><br><span style="color: hsl(120, 100%, 40%);">+ alt {</span><br><span style="color: hsl(120, 100%, 40%);">+ [] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(tr_rach_slots_per_interval, 0, 0))) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setverdict(pass);</span><br><span style="color: hsl(120, 100%, 40%);">+ repeat;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ [] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(?, ?, ?))) -> value rx_ud {</span><br><span style="color: hsl(120, 100%, 40%);">+ setverdict(fail, "Unexpected RACH LOAD IND: ", rx_ud);</span><br><span style="color: hsl(120, 100%, 40%);">+ repeat;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ [] RSL_CCHAN.receive {</span><br><span style="color: hsl(120, 100%, 40%);">+ repeat;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ [] T.timeout { }</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ f_vty_load_ind_thresh(10);</span><br><span style="color: hsl(120, 100%, 40%);">+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* Expect no RACH load indications on an idle BTS that has just started up (default threshold 10%) */</span><br><span style="color: hsl(120, 100%, 40%);">+testcase TC_rach_load_idle_below_thresh() runs on test_CT {</span><br><span style="color: hsl(120, 100%, 40%);">+ var ASP_RSL_Unitdata rx_ud;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ f_init_vty_bsc();</span><br><span style="color: hsl(120, 100%, 40%);">+ f_init();</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ timer T := 5.0;</span><br><span style="color: hsl(120, 100%, 40%);">+ T.start;</span><br><span style="color: hsl(120, 100%, 40%);">+ alt {</span><br><span style="color: hsl(120, 100%, 40%);">+ [] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(?, ?, ?))) -> value rx_ud {</span><br><span style="color: hsl(120, 100%, 40%);">+ setverdict(fail, "Unexpected RACH LOAD IND: ", rx_ud);</span><br><span style="color: hsl(120, 100%, 40%);">+ repeat;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ [] RSL_CCHAN.receive {</span><br><span style="color: hsl(120, 100%, 40%);">+ repeat;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ [] T.timeout {</span><br><span style="color: hsl(120, 100%, 40%);">+ setverdict(pass);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+/* Expect 0 RACH load on an idle BTS that has just started up */</span><br><span style="color: hsl(120, 100%, 40%);">+testcase TC_rach_load_count() runs on test_CT {</span><br><span style="color: hsl(120, 100%, 40%);">+ var ASP_RSL_Unitdata rx_ud;</span><br><span style="color: hsl(120, 100%, 40%);">+ var integer load_access_count := 0;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ f_init_vty_bsc();</span><br><span style="color: hsl(120, 100%, 40%);">+ /* send load indications even at 0% load */</span><br><span style="color: hsl(120, 100%, 40%);">+ f_vty_load_ind_thresh(0);</span><br><span style="color: hsl(120, 100%, 40%);">+ f_vty_transceive(BSCVTY, "drop bts connection 0 oml");</span><br><span style="color: hsl(120, 100%, 40%);">+ f_sleep(2.0);</span><br><span style="color: hsl(120, 100%, 40%);">+ f_init();</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ f_init_l1ctl();</span><br><span style="color: hsl(120, 100%, 40%);">+ f_sleep(1.0);</span><br><span style="color: hsl(120, 100%, 40%);">+ f_l1_tune(L1CTL);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ var GsmFrameNumber fn_last := 0;</span><br><span style="color: hsl(120, 100%, 40%);">+ for (var integer i := 0; i < 1000; i := i+1) {</span><br><span style="color: hsl(120, 100%, 40%);">+ var OCT1 ra := f_rnd_ra_cs();</span><br><span style="color: hsl(120, 100%, 40%);">+ var GsmFrameNumber fn := f_L1CTL_RACH(L1CTL, oct2int(ra));</span><br><span style="color: hsl(120, 100%, 40%);">+ if (fn == fn_last) {</span><br><span style="color: hsl(120, 100%, 40%);">+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__, fail, "Two RACH in same FN?!?");</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ fn_last := fn;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ timer T := 5.0;</span><br><span style="color: hsl(120, 100%, 40%);">+ T.start;</span><br><span style="color: hsl(120, 100%, 40%);">+ alt {</span><br><span style="color: hsl(120, 100%, 40%);">+ [] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(tr_rach_slots_per_interval, ?, ?)))</span><br><span style="color: hsl(120, 100%, 40%);">+ -> value rx_ud {</span><br><span style="color: hsl(120, 100%, 40%);">+ var RSL_IE_Body ie;</span><br><span style="color: hsl(120, 100%, 40%);">+ f_rsl_find_ie(rx_ud.rsl, RSL_IE_RACH_LOAD, ie);</span><br><span style="color: hsl(120, 100%, 40%);">+ load_access_count := load_access_count + ie.rach_load.access_count;</span><br><span style="color: hsl(120, 100%, 40%);">+ if (ie.rach_load.busy_count < ie.rach_load.access_count) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setverdict(fail, "Access count cannot be < Busy count");</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ repeat;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ [] RSL_CCHAN.receive(tr_RSL_UD(tr_RSL_RACH_LOAD_IND(?, ?, ?))) -> value rx_ud {</span><br><span style="color: hsl(120, 100%, 40%);">+ setverdict(fail, "Unexpected RACH LOAD IND: ", rx_ud);</span><br><span style="color: hsl(120, 100%, 40%);">+ repeat;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ [] RSL_CCHAN.receive {</span><br><span style="color: hsl(120, 100%, 40%);">+ repeat;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ [] T.timeout { }</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ if (load_access_count == 1000) {</span><br><span style="color: hsl(120, 100%, 40%);">+ setverdict(pass);</span><br><span style="color: hsl(120, 100%, 40%);">+ } else {</span><br><span style="color: hsl(120, 100%, 40%);">+ setverdict(fail, "Load reports state ", load_access_count, " RACH, but we sent 1000");</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ f_vty_load_ind_thresh(10);</span><br><span style="color: hsl(120, 100%, 40%);">+ Misc_Helpers.f_shutdown(__BFILE__, __LINE__);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> private function f_main_trxc_connect() runs on test_CT {</span><br><span> map(self:BTS_TRXC, system:BTS_TRXC);</span><br><span> var Result res;</span><br><span>@@ -4636,8 +4762,6 @@</span><br><span> * handover detection</span><br><span> * BS Power Control</span><br><span> * Physical Context</span><br><span style="color: hsl(0, 100%, 40%);">-* CCCH Load Indication for RACH</span><br><span style="color: hsl(0, 100%, 40%);">-* SMS Broadcast Req / Cmd / CBCH LOad Ind</span><br><span> * RF resource ind</span><br><span> * error handling</span><br><span> ** IE duplicated?</span><br><span>@@ -4664,6 +4788,9 @@</span><br><span> execute( TC_rach_content() );</span><br><span> execute( TC_rach_count() );</span><br><span> execute( TC_rach_max_ta() );</span><br><span style="color: hsl(120, 100%, 40%);">+ execute( TC_rach_load_idle_thresh0() );</span><br><span style="color: hsl(120, 100%, 40%);">+ execute( TC_rach_load_idle_below_thresh() );</span><br><span style="color: hsl(120, 100%, 40%);">+ execute( TC_rach_load_count() );</span><br><span> execute( TC_meas_res_sign_tchf() );</span><br><span> execute( TC_meas_res_sign_tchh() );</span><br><span> execute( TC_meas_res_sign_sdcch4() );</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.osmocom.org/14169">change 14169</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://gerrit.osmocom.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://gerrit.osmocom.org/14169"/><meta itemprop="name" content="View Change"/></div></div>
<div style="display:none"> Gerrit-Project: osmo-ttcn3-hacks </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>
<div style="display:none"> Gerrit-Change-Id: I6c9dee1d7d3eaa218fdce7ebb8e334858aedb736 </div>
<div style="display:none"> Gerrit-Change-Number: 14169 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Harald Welte <laforge@gnumonks.org> </div>