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-rw-r--r--unittest/mysys/crc32-t.c69
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diff --git a/unittest/mysys/crc32-t.c b/unittest/mysys/crc32-t.c
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+/* Copyright (c) MariaDB 2020
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; version 2 of the License.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+#include <my_global.h>
+#include <my_sys.h>
+#include <my_crypt.h>
+#include <tap.h>
+#include <string.h>
+#include <ctype.h>
+#include <zlib.h>
+
+/*
+ Check that optimized crc32 (ieee, or ethernet polynomical) returns the same
+ result as zlib (not so well optimized, yet, but trustworthy)
+*/
+#define DO_TEST_CRC32(crc,str) \
+ ok(crc32(crc,(const Bytef *)str,(uint)(sizeof(str)-1)) == my_checksum(crc, str, sizeof(str)-1), "crc32 '%s'",str)
+
+/* Check that CRC32-C calculation returns correct result*/
+#define DO_TEST_CRC32C(crc,str,expected) \
+ do { \
+ unsigned int v = my_crc32c(crc, str, sizeof(str)-1); \
+ printf("crc32(%u,'%s',%zu)=%u\n",crc,str,sizeof(str)-1,v); \
+ ok(expected == my_crc32c(crc, str, sizeof(str)-1),"crc32c '%s'",str); \
+ }while(0)
+
+
+#define LONG_STR "1234567890234568900212345678901231213123321212123123123123123"\
+ "............................................................................." \
+ "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" \
+ "yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy" \
+ "zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"
+
+int main(int argc __attribute__((unused)),char *argv[])
+{
+ MY_INIT(argv[0]);
+ plan(14);
+ printf("%s\n",my_crc32c_implementation());
+ DO_TEST_CRC32(0,"");
+ DO_TEST_CRC32(1,"");
+ DO_TEST_CRC32(0,"12345");
+ DO_TEST_CRC32(1,"12345");
+ DO_TEST_CRC32(0,"1234567890123456789");
+ DO_TEST_CRC32(0, LONG_STR);
+ ok(0 == my_checksum(0, NULL, 0) , "crc32 data = NULL, length = 0");
+
+ DO_TEST_CRC32C(0,"", 0);
+ DO_TEST_CRC32C(1,"", 1);
+ DO_TEST_CRC32C(0, "12345", 416359221);
+ DO_TEST_CRC32C(1, "12345", 549473433);
+ DO_TEST_CRC32C(0, "1234567890123456789", 2366987449U);
+ DO_TEST_CRC32C(0, LONG_STR, 3009234172U);
+ ok(0 == my_crc32c(0, NULL, 0), "crc32c data = NULL, length = 0");
+
+ my_end(0);
+ return exit_status();
+}