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osmo-ttcn3-hacks
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PCU: introduce a new test case TC_dl_flow_more_blocks 

Change-Id: I45edbc943194c15b084eb04dda390db75b4bfa0f
Signed-off-by: Vadim Yanitskiy <axilirator@gmail.com>
Related: OS#4506
This commit is contained in:
Vadim Yanitskiy 2020-05-11 03:48:06 +07:00
parent b6733a67ec
commit 71238c135d
1 changed files with 81 additions and 0 deletions
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81
pcu/PCU_Tests.ttcn
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@ -1600,6 +1600,86 @@ testcase TC_imm_ass_dl_block_retrans() runs on RAW_PCU_Test_CT {
f_shutdown(__BFILE__, __LINE__, final := true);
}
/* Verify scheduling of multiple Downlink data blocks during one RRBP. */
testcase TC_dl_flow_more_blocks() runs on RAW_PCU_Test_CT {
var AckNackDescription ack_nack_desc := valueof(t_AckNackDescription_init);
var octetstring data := f_rnd_octstring(16);
var OCT4 tlli := f_rnd_octstring(4);
var PacketDlAssign dl_tbf_ass;
var GsmRrMessage rr_imm_ass;
var RlcmacDlBlock dl_block;
var uint32_t ack_fn;
var uint32_t fn;
timer T := 5.0;
/* Initialize NS/BSSGP side */
f_init_bssgp();
/* Initialize the PCU interface abstraction */
f_init_raw(testcasename());
/* Establish BSSGP connection to the PCU */
f_bssgp_establish();
f_bssgp_client_llgmm_assign('FFFFFFFF'O, tlli);
/* SGSN sends some DL data, PCU will page on CCCH (PCH) */
BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data));
f_pcuif_rx_pch_imm_tbf_ass(rr_imm_ass);
/* Make sure we've got a Downlink TBF assignment with DL TFI */
f_imm_ass_verify_dl_tbf_ass(rr_imm_ass, dl_tbf_ass);
if (not ispresent(dl_tbf_ass.group1)) {
setverdict(fail, "Immediate Assignment contains no DL TFI");
f_shutdown(__BFILE__, __LINE__);
}
/* Get DL TFI from received Downlink TBF assignment */
var uint5_t tfi := dl_tbf_ass.group1.tfi_assignment;
/* Wait timer X2002 and DL block is available after CCCH IMM ASS */
f_sleep(X2002);
/* Expect the first (GPRS DL) block with bsn=0 and rrbp_valid=1 */
f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, 0);
f_acknackdesc_ack_block(ack_nack_desc, dl_block);
/* TDMA frame number on which we are supposed to send the ACK */
ack_fn := f_dl_block_ack_fn(dl_block, fn);
/* SGSN sends more blocks during the indicated RRBP */
for (var integer bsn := 1; bsn < 63; bsn := bsn + 1) {
data := f_rnd_octstring(16); /* Random LLC data */
BSSGP[0].send(ts_BSSGP_DL_UD(tlli, data));
f_rx_rlcmac_dl_block_exp_data(dl_block, fn, data, bsn);
/* Make sure this block has the same TFI as was assigned
* FIXME: this is only valid for GPRS, not EGPRS. */
if (dl_block.data.mac_hdr.hdr_ext.tfi != tfi) {
setverdict(fail, "Rx DL data block with unexpected TFI: ",
dl_block.data.mac_hdr.hdr_ext.tfi);
f_shutdown(__BFILE__, __LINE__);
}
/* Keep Ack/Nack description updated */
f_acknackdesc_ack_block(ack_nack_desc, dl_block);
/* Break if this is the end of RRBP */
if (fn == ack_fn) {
ack_nack_desc.final_ack := '1'B;
break;
}
}
/* This is the end of RRBP, send Packet Downlink Ack/Nack */
f_tx_rlcmac_ul_block(ts_RLCMAC_DL_ACK_NACK(tfi, ack_nack_desc), fn := fn);
/* Make sure that the next block (after the Ack) is dummy */
f_rx_rlcmac_dl_block_exp_dummy(dl_block);
f_shutdown(__BFILE__, __LINE__, final := true);
}
private function f_pkt_paging_match_imsi(in PacketPagingReq req, hexstring imsi)
runs on RAW_PCU_Test_CT {
var MobileIdentityLV_Paging mi_lv := req.repeated_pageinfo.cs.mobile_identity;
@ -1930,6 +2010,7 @@ control {
execute( TC_mt_ping_pong() );
execute( TC_mt_ping_pong_with_dl_racap() );
execute( TC_imm_ass_dl_block_retrans() );
execute( TC_dl_flow_more_blocks() );
execute( TC_paging_cs_from_bts() );
execute( TC_paging_cs_from_sgsn_sign_ptmsi() );
execute( TC_paging_cs_from_sgsn_sign() );