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authorJacob Erlbeck <jerlbeck@sysmocom.de>2014-01-10 17:43:41 +0100
committerJacob Erlbeck <jerlbeck@sysmocom.de>2014-01-16 12:04:29 +0100
commit4b903b4afb5d593603b0d75a7d244f6c00e039ad (patch)
treec1ddab16d59f966c21f402d4d39c09c96ff67b19 /openbsc/tests/gsm0408/gsm0408_test.c
parent65d114fe434ec4fff9b9abfedade05ce21da994e (diff)
si/test: Add tests for range encoding/decoding
This commit adds test range encoding tests. They check the property decoding(encoding(L)) = L and optionally dump the results and encoded sequences to stdout. There a 2 test modes: - A list of fixed tests - A random number based test loop per ARFCN list size (only dumps the first failing test) Sponsored-by: On-Waves ehf
Diffstat (limited to 'openbsc/tests/gsm0408/gsm0408_test.c')
-rw-r--r--openbsc/tests/gsm0408/gsm0408_test.c216
1 files changed, 216 insertions, 0 deletions
diff --git a/openbsc/tests/gsm0408/gsm0408_test.c b/openbsc/tests/gsm0408/gsm0408_test.c
index 60a151faf..721b283bb 100644
--- a/openbsc/tests/gsm0408/gsm0408_test.c
+++ b/openbsc/tests/gsm0408/gsm0408_test.c
@@ -27,6 +27,8 @@
#include <openbsc/gsm_04_08.h>
#include <openbsc/gsm_subscriber.h>
#include <openbsc/debug.h>
+#include <openbsc/arfcn_range_encode.h>
+#include <osmocom/core/application.h>
#define COMPARE(result, op, value) \
if (!((result) op (value))) {\
@@ -94,10 +96,224 @@ static void test_mi_functionality(void)
COMPARE_STR(mi_parsed, imsi_even);
}
+struct {
+ int range;
+ int arfcns_num;
+ int arfcns[RANGE_ENC_MAX_ARFCNS];
+} arfcn_test_ranges[] = {
+ {ARFCN_RANGE_512, 12,
+ { 1, 12, 31, 51, 57, 91, 97, 98, 113, 117, 120, 125 }},
+ {ARFCN_RANGE_512, 17,
+ { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 }},
+ {ARFCN_RANGE_512, 18,
+ { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18 }},
+ {ARFCN_RANGE_512, 18,
+ { 1, 17, 31, 45, 58, 79, 81, 97,
+ 113, 127, 213, 277, 287, 311, 331, 391,
+ 417, 511 }},
+ {ARFCN_RANGE_512, 6,
+ { 1, 17, 31, 45, 58, 79 }},
+ {ARFCN_RANGE_512, 6,
+ { 10, 17, 31, 45, 58, 79 }},
+ {ARFCN_RANGE_1024, 17,
+ { 0, 17, 31, 45, 58, 79, 81, 97,
+ 113, 127, 213, 277, 287, 311, 331, 391,
+ 1023 }},
+ {ARFCN_RANGE_1024, 16,
+ { 17, 31, 45, 58, 79, 81, 97, 113,
+ 127, 213, 277, 287, 311, 331, 391, 1023 }},
+ {-1}
+};
+
+static int test_single_range_encoding(int range, const int *orig_arfcns,
+ int arfcns_num, int silent)
+{
+ int arfcns[RANGE_ENC_MAX_ARFCNS];
+ int w[RANGE_ENC_MAX_ARFCNS];
+ int f0_included = 0;
+ int rc, f0;
+ uint8_t chan_list[16] = {0};
+ struct gsm_sysinfo_freq dec_freq[1024] = {{0}};
+ int dec_arfcns[RANGE_ENC_MAX_ARFCNS] = {0};
+ int dec_arfcns_count = 0;
+ int arfcns_used = 0;
+ int i;
+
+ arfcns_used = arfcns_num;
+ memmove(arfcns, orig_arfcns, sizeof(arfcns));
+
+ f0 = arfcns[0];
+ /*
+ * Manipulate the ARFCN list according to the rules in J4 depending
+ * on the selected range.
+ */
+ arfcns_used = range_enc_filter_arfcns(range, arfcns, arfcns_used,
+ f0, &f0_included);
+
+ memset(w, 0, sizeof(w));
+ rc = range_enc_arfcns(range, arfcns, arfcns_used, w, 0);
+ if (rc != 0) {
+ printf("Cannot compute range W(k), rc = %d\n", rc);
+ return 1;
+ }
+
+ if (!silent)
+ fprintf(stderr, "range=%d, arfcns_used=%d, f0=%d, f0_included=%d\n",
+ range, arfcns_used, f0, f0_included);
+
+ /* Select the range and the amount of bits needed */
+ switch (range) {
+ case ARFCN_RANGE_128:
+ rc = range_enc_range128(chan_list, f0, w);
+ break;
+ case ARFCN_RANGE_256:
+ rc = range_enc_range256(chan_list, f0, w);
+ break;
+ case ARFCN_RANGE_512:
+ rc = range_enc_range512(chan_list, f0, w);
+ break;
+ case ARFCN_RANGE_1024:
+ rc = range_enc_range1024(chan_list, f0, f0_included, w);
+ break;
+ default:
+ return 1;
+ };
+ if (rc != 0) {
+ printf("Cannot encode range, rc = %d\n", rc);
+ return 1;
+ }
+
+ if (!silent)
+ printf("chan_list = %s\n",
+ osmo_hexdump(chan_list, sizeof(chan_list)));
+
+ rc = gsm48_decode_freq_list(dec_freq, chan_list, sizeof(chan_list),
+ 0xfe, 1);
+ if (rc != 0) {
+ printf("Cannot decode freq list, rc = %d\n", rc);
+ return 1;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(dec_freq); i++) {
+ if (dec_freq[i].mask &&
+ dec_arfcns_count < ARRAY_SIZE(dec_arfcns))
+ dec_arfcns[dec_arfcns_count++] = i;
+ }
+
+ if (!silent) {
+ printf("Decoded freqs %d (expected %d)\n",
+ dec_arfcns_count, arfcns_num);
+ printf("Decoded: ");
+ for (i = 0; i < dec_arfcns_count; i++) {
+ printf("%d ", dec_arfcns[i]);
+ if (dec_arfcns[i] != orig_arfcns[i])
+ printf("(!= %d) ", orig_arfcns[i]);
+ }
+ printf("\n");
+ }
+
+ if (dec_arfcns_count != arfcns_num) {
+ printf("Wrong number of arfcns\n");
+ return 1;
+ }
+
+ if (memcmp(dec_arfcns, orig_arfcns, sizeof(dec_arfcns)) != 0) {
+ printf("Decoding error, got wrong freqs\n");
+ fprintf(stderr, " w = ");
+ for (i = 0; i < ARRAY_SIZE(w); i++)
+ fprintf(stderr, "%d ", w[i]);
+ fprintf(stderr, "\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+static void test_random_range_encoding(int range, int max_arfcn_num)
+{
+ int arfcns_num = 0;
+ int test_idx;
+ int rc, max_count;
+ int num_tests = 1024;
+
+ printf("Random range test: range %d, max num ARFCNs %d\n",
+ range, max_arfcn_num);
+
+ srandom(1);
+
+ for (max_count = 1; max_count < max_arfcn_num; max_count++) {
+ for (test_idx = 0; test_idx < num_tests; test_idx++) {
+ int count;
+ int i;
+ int min_freq = 0;
+
+ int rnd_arfcns[RANGE_ENC_MAX_ARFCNS] = {0};
+ char rnd_arfcns_set[1024] = {0};
+
+ if (range < ARFCN_RANGE_1024)
+ min_freq = random() % (1023 - range);
+
+ for (count = max_count; count; ) {
+ int arfcn = min_freq + random() % (range + 1);
+ OSMO_ASSERT(arfcn < ARRAY_SIZE(rnd_arfcns_set));
+
+ if (!rnd_arfcns_set[arfcn]) {
+ rnd_arfcns_set[arfcn] = 1;
+ count -= 1;
+ }
+ }
+
+ arfcns_num = 0;
+ for (i = 0; i < ARRAY_SIZE(rnd_arfcns_set); i++)
+ if (rnd_arfcns_set[i])
+ rnd_arfcns[arfcns_num++] = i;
+
+ rc = test_single_range_encoding(range, rnd_arfcns,
+ arfcns_num, 1);
+ if (rc != 0) {
+ printf("Failed on test %d, range %d, num ARFCNs %d\n",
+ test_idx, range, max_count);
+ test_single_range_encoding(range, rnd_arfcns,
+ arfcns_num, 0);
+ return;
+ }
+ }
+ }
+}
+
+static void test_range_encoding()
+{
+ int *arfcns;
+ int arfcns_num = 0;
+ int test_idx;
+ int range;
+
+ for (test_idx = 0; arfcn_test_ranges[test_idx].arfcns_num > 0; test_idx++)
+ {
+ arfcns_num = arfcn_test_ranges[test_idx].arfcns_num;
+ arfcns = &arfcn_test_ranges[test_idx].arfcns[0];
+ range = arfcn_test_ranges[test_idx].range;
+
+ printf("Range test %d: range %d, num ARFCNs %d\n",
+ test_idx, range, arfcns_num);
+
+ test_single_range_encoding(range, arfcns, arfcns_num, 0);
+ }
+
+ test_random_range_encoding(ARFCN_RANGE_128, 29);
+ test_random_range_encoding(ARFCN_RANGE_256, 22);
+ test_random_range_encoding(ARFCN_RANGE_512, 18);
+ test_random_range_encoding(ARFCN_RANGE_1024, 16);
+}
+
int main(int argc, char **argv)
{
+ osmo_init_logging(&log_info);
+ log_set_log_level(osmo_stderr_target, LOGL_INFO);
+
test_location_area_identifier();
test_mi_functionality();
+ test_range_encoding();
printf("Done.\n");
return EXIT_SUCCESS;