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authorMax <msuraev@sysmocom.de>2016-06-17 17:58:52 +0200
committerMax <msuraev@sysmocom.de>2016-06-20 19:02:56 +0200
commite0a7d9e2c220e5544ee8982c78851ff40ac425bc (patch)
tree5b3c65a05ef3ab52f4808dae5f3632f8fdebe960 /tests
parent136e73764e7f58e52ffb13d01304fef30eb7d291 (diff)
Add octet-aligned/unaligned shift functions
The actual code is from OsmoBTS' tch.c by Harald Welte. Add unit tests, doxygen annotation and extra memory safety check. Those functions are used in several BTS implementations but seems generic enough to be generally useful. Change-Id: I2b1901c4161e8035f059585901dca593b661556d
Diffstat (limited to 'tests')
-rw-r--r--tests/bits/bitrev_test.c25
-rw-r--r--tests/bits/bitrev_test.ok105
2 files changed, 130 insertions, 0 deletions
diff --git a/tests/bits/bitrev_test.c b/tests/bits/bitrev_test.c
index 987f4d51..08f08278 100644
--- a/tests/bits/bitrev_test.c
+++ b/tests/bits/bitrev_test.c
@@ -205,6 +205,20 @@ check16(uint16_t test, enum END e)
printcheck16(e, test, test, (BE == e) ? s : NULL, print);
}
+static void sh_chk(const uint8_t *in, uint8_t len, unsigned int nib, bool r)
+{
+ uint8_t x[len];
+ if (r)
+ osmo_nibble_shift_right(x, in, nib);
+ else
+ osmo_nibble_shift_left_unal(x, in, nib);
+
+ printf("[%u] %s IN: %s, nibble %u:", len, r ? "R" : "L",
+ osmo_hexdump_nospc(in, len), nib);
+ /* do NOT combine those printfs: osmo_hexdump* use static buffer which
+ WILL screw things up in that case */
+ printf("\n OUT: %s\n", osmo_hexdump_nospc(x, nib/2));
+}
int main(int argc, char **argv)
{
@@ -274,5 +288,16 @@ int main(int argc, char **argv)
check16(0, BE);
check16(0, LE);
+ printf("running nibble tests...\n");
+
+ const uint8_t in1[] = { 0xF0, 0x0D, 0xCA, 0xFE, 0xDE, 0xAD, 0xBE, 0xEF },
+ in2[] = { 0xB0, 0x0B, 0xBA, 0xBE, 0xFA, 0xCE };
+
+ for (offs = 0; offs < 13; offs++) {
+ sh_chk(in1, ARRAY_SIZE(in1), offs, true);
+ sh_chk(in1, ARRAY_SIZE(in1), offs, false);
+ sh_chk(in2, ARRAY_SIZE(in2), offs, true);
+ sh_chk(in2, ARRAY_SIZE(in2), offs, false);
+ }
return 0;
}
diff --git a/tests/bits/bitrev_test.ok b/tests/bits/bitrev_test.ok
index 90cb295f..9fbb4d9c 100644
--- a/tests/bits/bitrev_test.ok
+++ b/tests/bits/bitrev_test.ok
@@ -53,3 +53,108 @@ running random tests...
24 LE OK
16 BE OK, storage OK
16 LE OK
+running nibble tests...
+[8] R IN: f00dcafedeadbeef, nibble 0:
+ OUT:
+[8] L IN: f00dcafedeadbeef, nibble 0:
+ OUT:
+[6] R IN: b00bbabeface, nibble 0:
+ OUT:
+[6] L IN: b00bbabeface, nibble 0:
+ OUT:
+[8] R IN: f00dcafedeadbeef, nibble 1:
+ OUT:
+[8] L IN: f00dcafedeadbeef, nibble 1:
+ OUT:
+[6] R IN: b00bbabeface, nibble 1:
+ OUT:
+[6] L IN: b00bbabeface, nibble 1:
+ OUT:
+[8] R IN: f00dcafedeadbeef, nibble 2:
+ OUT: 0f
+[8] L IN: f00dcafedeadbeef, nibble 2:
+ OUT: 00
+[6] R IN: b00bbabeface, nibble 2:
+ OUT: 0b
+[6] L IN: b00bbabeface, nibble 2:
+ OUT: 00
+[8] R IN: f00dcafedeadbeef, nibble 3:
+ OUT: 0f
+[8] L IN: f00dcafedeadbeef, nibble 3:
+ OUT: 00
+[6] R IN: b00bbabeface, nibble 3:
+ OUT: 0b
+[6] L IN: b00bbabeface, nibble 3:
+ OUT: 00
+[8] R IN: f00dcafedeadbeef, nibble 4:
+ OUT: 0f00
+[8] L IN: f00dcafedeadbeef, nibble 4:
+ OUT: 00dc
+[6] R IN: b00bbabeface, nibble 4:
+ OUT: 0b00
+[6] L IN: b00bbabeface, nibble 4:
+ OUT: 00bb
+[8] R IN: f00dcafedeadbeef, nibble 5:
+ OUT: 0f00
+[8] L IN: f00dcafedeadbeef, nibble 5:
+ OUT: 00dc
+[6] R IN: b00bbabeface, nibble 5:
+ OUT: 0b00
+[6] L IN: b00bbabeface, nibble 5:
+ OUT: 00bb
+[8] R IN: f00dcafedeadbeef, nibble 6:
+ OUT: 0f00dc
+[8] L IN: f00dcafedeadbeef, nibble 6:
+ OUT: 00dcaf
+[6] R IN: b00bbabeface, nibble 6:
+ OUT: 0b00bb
+[6] L IN: b00bbabeface, nibble 6:
+ OUT: 00bbab
+[8] R IN: f00dcafedeadbeef, nibble 7:
+ OUT: 0f00dc
+[8] L IN: f00dcafedeadbeef, nibble 7:
+ OUT: 00dcaf
+[6] R IN: b00bbabeface, nibble 7:
+ OUT: 0b00bb
+[6] L IN: b00bbabeface, nibble 7:
+ OUT: 00bbab
+[8] R IN: f00dcafedeadbeef, nibble 8:
+ OUT: 0f00dcaf
+[8] L IN: f00dcafedeadbeef, nibble 8:
+ OUT: 00dcafed
+[6] R IN: b00bbabeface, nibble 8:
+ OUT: 0b00bbab
+[6] L IN: b00bbabeface, nibble 8:
+ OUT: 00bbabef
+[8] R IN: f00dcafedeadbeef, nibble 9:
+ OUT: 0f00dcaf
+[8] L IN: f00dcafedeadbeef, nibble 9:
+ OUT: 00dcafed
+[6] R IN: b00bbabeface, nibble 9:
+ OUT: 0b00bbab
+[6] L IN: b00bbabeface, nibble 9:
+ OUT: 00bbabef
+[8] R IN: f00dcafedeadbeef, nibble 10:
+ OUT: 0f00dcafed
+[8] L IN: f00dcafedeadbeef, nibble 10:
+ OUT: 00dcafedea
+[6] R IN: b00bbabeface, nibble 10:
+ OUT: 0b00bbabef
+[6] L IN: b00bbabeface, nibble 10:
+ OUT: 00bbabefac
+[8] R IN: f00dcafedeadbeef, nibble 11:
+ OUT: 0f00dcafed
+[8] L IN: f00dcafedeadbeef, nibble 11:
+ OUT: 00dcafedea
+[6] R IN: b00bbabeface, nibble 11:
+ OUT: 0b00bbabef
+[6] L IN: b00bbabeface, nibble 11:
+ OUT: 00bbabefac
+[8] R IN: f00dcafedeadbeef, nibble 12:
+ OUT: 0f00dcafedea
+[8] L IN: f00dcafedeadbeef, nibble 12:
+ OUT: 00dcafedeadb
+[6] R IN: b00bbabeface, nibble 12:
+ OUT: 0b00bbabefac
+[6] L IN: b00bbabeface, nibble 12:
+ OUT: 00bbabeface0