ttcn3
/
osmo-ttcn3-hacks
mirror of https://gerrit.osmocom.org/osmo-ttcn3-hacks
10
0
Fork 1
Code Issues Releases Wiki Activity

pcu: Introduce test TC_cs_max_dl and TC_dl_cs1_to_cs4 

Change-Id: If847d091f3f4e6a7c77fbadc7280423637c50b35
This commit is contained in:
Pau Espin 2020-11-05 17:59:30 +01:00 committed by pespin
parent 6b29571091
commit 5d07ae6d3c
2 changed files with 116 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
pcu/GPRS_Components.ttcn
View File

@ -949,19 +949,12 @@ runs on MS_BTS_IFACE_CT {
}
}
/* High level (task specific) helper for receiving and matching GPRS/EGPRS data blocks */
function f_rx_rlcmac_dl_block_exp_data(out RlcmacDlBlock dl_block, out uint32_t dl_fn,
/* High level (task specific) helper for matching GPRS/EGPRS data blocks */
function f_rlcmac_dl_block_exp_data(in RlcmacDlBlock dl_block,
template (present) octetstring data := ?,
template (present) uint7_t exp_bsn := ?,
template (present) CodingScheme exp_cs := ?,
template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum)
template (present) CodingScheme exp_cs := ?)
runs on MS_BTS_IFACE_CT {
/* FIXME: ideally we should use an alt statement with timeout here, rather than
* having +100500 layers of abstraction. This would facilitate developing the
* multi-TBF/-TRX/-BTS tests, where you cannot expect that the first received
* block is exactly what you need. */
f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr);
/* Make sure it's either GPRS or EGPRS data block */
if (not match(dl_block, tr_RLCMAC_DATA)) {
setverdict(fail, "Failed to match DL DATA: ", dl_block, " vs ", tr_RLCMAC_DATA);
@ -979,6 +972,22 @@ runs on MS_BTS_IFACE_CT {
}
}
/* High level (task specific) helper for receiving and matching GPRS/EGPRS data blocks */
function f_rx_rlcmac_dl_block_exp_data(out RlcmacDlBlock dl_block, out uint32_t dl_fn,
template (present) octetstring data := ?,
template (present) uint7_t exp_bsn := ?,
template (present) CodingScheme exp_cs := ?,
template (value) TsTrxBtsNum nr := ts_TsTrxBtsNum)
runs on MS_BTS_IFACE_CT {
/* FIXME: ideally we should use an alt statement with timeout here, rather than
* having +100500 layers of abstraction. This would facilitate developing the
* multi-TBF/-TRX/-BTS tests, where you cannot expect that the first received
* block is exactly what you need. */
f_rx_rlcmac_dl_block(dl_block, dl_fn, nr := nr);
f_rlcmac_dl_block_exp_data(dl_block, data, exp_bsn, exp_cs);
}
function f_dl_block_ack_fn(in RlcmacDlBlock dl_block, uint32_t dl_fn)
runs on MS_BTS_IFACE_CT return uint32_t {
var boolean rrbp_valid;

97
pcu/PCU_Tests.ttcn
View File

@ -867,6 +867,101 @@ testcase TC_cs_initial_dl() runs on RAW_PCU_Test_CT {
f_shutdown(__BFILE__, __LINE__, final := true);
}
/* Verify scheduling of multiple Downlink data blocks, enough to reach CS4 */
function f_dl_data_exp_cs(template CodingScheme exp_cs := ?) runs on RAW_PCU_Test_CT {
var octetstring data := f_rnd_octstring(1000);
var RlcmacDlBlock prev_dl_block, dl_block;
var uint32_t ack_fn;
var uint32_t fn;
var GprsMS ms;
var integer tx_data_remain := 5;
var integer bsn := 0;
/* Establish BSSGP connection to the PCU */
f_bssgp_establish();
ms := g_ms[0]; /* We only use first MS in this test */
f_bssgp_client_llgmm_assign(TLLI_UNUSED, ms.tlli);
/* SGSN sends some DL data, PCU will page on CCCH (PCH) */
BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data));
f_ms_exp_dl_tbf_ass_ccch(ms, PCU_IF_SAPI_PCH);
/* Wait timer X2002 and DL block is available after CCCH IMM ASS */
f_sleep(X2002);
for (var integer i := 0; i < 250; i := i + 1) {
bsn := i mod 128;
f_rx_rlcmac_dl_block(dl_block, fn);
if (match(dl_block, tr_RLCMAC_DUMMY_CTRL)) {
/* No more data to receive, done */
break;
}
f_rlcmac_dl_block_exp_data(dl_block, ?, bsn, cs_gprs_any);
/* Keep Ack/Nack description updated */
f_acknackdesc_ack_block(ms.dl_tbf.acknack_desc, dl_block);
/* TDMA frame number on which we are supposed to send the ACK */
if (dl_block.data.mac_hdr.mac_hdr.rrbp_valid) {
ack_fn := f_dl_block_ack_fn(dl_block, fn);
f_ms_tx_ul_block(ms, ts_RLCMAC_DL_ACK_NACK(ms.dl_tbf.tfi, ms.dl_tbf.acknack_desc), ack_fn);
if (tx_data_remain != 0) {
/* Submit more data from time to time to keep the TBF ongoing */
BSSGP[0].send(ts_BSSGP_DL_UD(ms.tlli, data));
tx_data_remain := tx_data_remain - 1;
}
}
prev_dl_block := dl_block;
}
bsn := (bsn + 127) mod 128; /* previous bsn: bsn -1 */
f_rlcmac_dl_block_exp_data(prev_dl_block, ?, bsn, exp_cs);
f_shutdown(__BFILE__, __LINE__, final := true);
}
/* Verify DL CS above "cs max" set by VTY is never used */
testcase TC_cs_max_dl() runs on RAW_PCU_Test_CT {
/* Initialize NS/BSSGP side */
f_init_bssgp();
/* Initialize GPRS MS side */
f_init_gprs_ms();
/* Initialize the PCU interface abstraction */
f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS));
/* Set maximum allowed DL CS to 3 */
g_cs_initial_dl := 1;
g_cs_max_dl := 3;
f_pcuvty_set_allowed_cs_mcs();
f_pcuvty_set_link_quality_ranges();
f_dl_data_exp_cs(f_rlcmac_block_int2cs_mcs(g_cs_max_dl, false));
}
/* Check DL CS4 is used in good link conditions if allowed by config */
testcase TC_dl_cs1_to_cs4() runs on RAW_PCU_Test_CT {
/* Initialize NS/BSSGP side */
f_init_bssgp();
/* Initialize GPRS MS side */
f_init_gprs_ms();
/* Initialize the PCU interface abstraction */
f_init_raw(testcasename(), ts_PCUIF_INFO_default(c_PCUIF_Flags_noMCS));
/* Set initial DL CS to 1 & maximum allowed DL CS to 4 */
g_cs_initial_dl := 1;
g_cs_max_dl := 4;
f_pcuvty_set_allowed_cs_mcs();
f_pcuvty_set_link_quality_ranges();
f_dl_data_exp_cs(f_rlcmac_block_int2cs_mcs(g_cs_max_dl, false));
}
/* Verify PCU drops TBF after some time of inactivity. */
testcase TC_t3169() runs on RAW_PCU_Test_CT {
var PCUIF_info_ind info_ind;
@ -2915,6 +3010,8 @@ control {
execute( TC_cs_initial_ul() );
execute( TC_cs_max_ul() );
execute( TC_cs_initial_dl() );
execute( TC_cs_max_dl() );
execute( TC_dl_cs1_to_cs4() );
execute( TC_t3169() );
execute( TC_t3193() );
execute( TC_countdown_procedure() );