Change in osmo-bsc[2021q1]: tests/gsm0408: add testing coverage for generate_cell_chan_list()

fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-bsc/+/27380 ) Change subject: tests/gsm0408: add testing coverage for generate_cell_chan_list() ...................................................................... tests/gsm0408: add testing coverage for generate_cell_chan_list() This commit demonstrates what happens when a cell has channels in both P-GSM and E-GSM bands (case 'c'). As can be seen from: Case a) only the BCCH carrier: 10 Case b) more carriers from P-GSM band: 1 3 10 64 99 124 Case c) more carriers from E-GSM band: 1 3 10 64 99 124 in both cases 'b' and 'c' we have the same set of ARFCNs. Carriers from the E-GSM band are not present at all. This is wrong and will be fixed in the follow up change(s). Change-Id: Ied0519c70501f105673a9b36657101063d275058 Related: SYS#5854 --- M tests/gsm0408/Makefile.am M tests/gsm0408/gsm0408_test.c M tests/gsm0408/gsm0408_test.ok 3 files changed, 75 insertions(+), 0 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/80/27380/1 diff --git a/tests/gsm0408/Makefile.am b/tests/gsm0408/Makefile.am index 571e7e6..b5a1ae5 100644 --- a/tests/gsm0408/Makefile.am +++ b/tests/gsm0408/Makefile.am @@ -29,6 +29,7 @@ $(top_builddir)/src/osmo-bsc/gsm_04_08_rr.o \ $(top_builddir)/src/osmo-bsc/arfcn_range_encode.o \ $(top_builddir)/src/osmo-bsc/bts.o \ + $(top_builddir)/src/osmo-bsc/bts_unknown.o \ $(top_builddir)/src/osmo-bsc/bts_ipaccess_nanobts_omlattr.o \ $(top_builddir)/src/osmo-bsc/bts_sm.o \ $(top_builddir)/src/osmo-bsc/bts_trx.o \ diff --git a/tests/gsm0408/gsm0408_test.c b/tests/gsm0408/gsm0408_test.c index 9a1d3cf..2018e53 100644 --- a/tests/gsm0408/gsm0408_test.c +++ b/tests/gsm0408/gsm0408_test.c @@ -30,6 +30,7 @@ #include <osmocom/bsc/system_information.h> #include <osmocom/bsc/abis_rsl.h> #include <osmocom/bsc/bts.h> +#include <osmocom/bsc/bss.h> #include <osmocom/core/application.h> #include <osmocom/core/byteswap.h> @@ -878,6 +879,71 @@ OSMO_ASSERT(rc == -EINVAL); } +/* Similar to list_arfcn() from system_information.c, but uses printf(). + * Another difference is that the text is printed even if n is 0. */ +static void print_cell_chan_desc(uint8_t *cd, const char *text) +{ + struct gsm_sysinfo_freq freq[1024]; + unsigned int n = 0, i; + + memset(freq, 0, sizeof(freq)); + gsm48_decode_freq_list(freq, cd, 16, 0xce, 1); + + printf("%s:", text); + for (i = 0; i < 1024; i++) { + if (!freq[i].mask) + continue; + printf(" %u", i); + n++; + } + if (!n) + printf(" (empty set)"); + printf("\n"); +} + +static void test_cell_chan_desc(struct gsm_network *net) +{ + struct gsm_bts *bts = bts_init(net); + uint8_t cell_chan_desc[16]; + + printf("Testing generation of the Cell Channel Description IE:\n"); + + bts_model_unknown_init(); + bts->type = GSM_BTS_TYPE_UNKNOWN; + bts->model = bts_model_find(bts->type); + OSMO_ASSERT(bts->model != NULL); + + bts->band = GSM_BAND_900; + bts->c0->arfcn = 10; /* BCCH carrier */ + + /* Case a) only the BCCH carrier */ + bitvec_set_bit_pos(&bts->si_common.cell_alloc, bts->c0->arfcn, ONE); + + OSMO_ASSERT(generate_cell_chan_list(&cell_chan_desc[0], bts) == 0); + print_cell_chan_desc(&cell_chan_desc[0], "Case a) only the BCCH carrier"); + + /* Case b) more carriers from P-GSM band */ + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 1, ONE); + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 3, ONE); + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 64, ONE); + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 99, ONE); + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 124, ONE); + + OSMO_ASSERT(generate_cell_chan_list(&cell_chan_desc[0], bts) == 0); + print_cell_chan_desc(&cell_chan_desc[0], "Case b) more carriers from P-GSM band"); + + /* Case c) more carriers from E-GSM band */ + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 0, ONE); + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 975, ONE); + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 1001, ONE); + bitvec_set_bit_pos(&bts->si_common.cell_alloc, 1023, ONE); + + OSMO_ASSERT(generate_cell_chan_list(&cell_chan_desc[0], bts) == 0); + print_cell_chan_desc(&cell_chan_desc[0], "Case c) more carriers from E-GSM band"); + + bts_del(bts); +} + static const struct log_info_cat log_categories[] = { }; @@ -919,6 +985,8 @@ test_gsm48_multirate_config(); + test_cell_chan_desc(net); + printf("Done.\n"); return EXIT_SUCCESS; diff --git a/tests/gsm0408/gsm0408_test.ok b/tests/gsm0408/gsm0408_test.ok index f1aa463..38b5b4b 100644 --- a/tests/gsm0408/gsm0408_test.ok +++ b/tests/gsm0408/gsm0408_test.ok @@ -243,4 +243,10 @@ gsm48_multirate_config(): rc=0, lv=0520340bf330 gsm48_multirate_config(): rc=0, lv=0420140bf0 gsm48_multirate_config(): rc=0, lv=022004 +BTS allocation OK in test_cell_chan_desc() +Testing generation of the Cell Channel Description IE: +Case a) only the BCCH carrier: 10 +Case b) more carriers from P-GSM band: 1 3 10 64 99 124 +Case c) more carriers from E-GSM band: 1 3 10 64 99 124 +BTS deallocated OK in test_cell_chan_desc() Done. -- To view, visit https://gerrit.osmocom.org/c/osmo-bsc/+/27380 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-bsc Gerrit-Branch: 2021q1 Gerrit-Change-Id: Ied0519c70501f105673a9b36657101063d275058 Gerrit-Change-Number: 27380 Gerrit-PatchSet: 1 Gerrit-Owner: fixeria &lt;vyanitskiy(a)sysmocom.de&gt; Gerrit-MessageType: newchange