mysql5/mysql-5.7.27/unittest/gunit/mysys_base64-t.cc

101 lines
2.8 KiB
C++

/* Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
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 02110-1301 USA */
// First include (the generated) my_config.h, to get correct platform defines.
#include "my_config.h"
#include <gtest/gtest.h>
#include <my_global.h>
#include <my_sys.h>
#include <base64.h>
#include <string.h>
namespace mysys_base64_unittest {
const int BASE64_LOOP_COUNT= 500;
TEST(Mysys, Base64)
{
int i, cmp;
size_t j, k, l, dst_len, needed_length;
MY_INIT("base64-t");
for (i= 0; i < BASE64_LOOP_COUNT; i++)
{
/* Create source data */
const size_t src_len= rand() % 1000 + 1;
char * src= (char *) malloc(src_len);
char * s= src;
char * str;
char * dst;
for (j= 0; j<src_len; j++)
{
char c= rand();
*s++= c;
}
/* Encode */
needed_length= base64_needed_encoded_length(src_len);
str= (char *) malloc(needed_length);
for (k= 0; k < needed_length; k++)
str[k]= (char)0xff; /* Fill memory to check correct NUL termination */
EXPECT_EQ(0, base64_encode(src, src_len, str))
<< "base64_encode: size " << i;
EXPECT_EQ(needed_length, strlen(str) + 1)
<< "base64_needed_encoded_length: " << i;
/* Decode */
dst= (char *) malloc(base64_needed_decoded_length(strlen(str)));
dst_len= base64_decode(str, strlen(str), dst, NULL, 0);
EXPECT_EQ(dst_len, src_len) << "Comparing lengths";
cmp= memcmp(src, dst, src_len);
EXPECT_EQ(0, cmp) << "Comparing encode-decode result";
if (cmp != 0)
{
char buf[80];
ADD_FAILURE() <<
" --------- src --------- --------- dst ---------";
for (k= 0; k<src_len; k+=8)
{
sprintf(buf, "%.4x ", (uint) k);
for (l=0; l<8 && k+l<src_len; l++)
{
unsigned char c= src[k+l];
sprintf(buf, "%.2x ", (unsigned)c);
}
sprintf(buf, " ");
for (l=0; l<8 && k+l<dst_len; l++)
{
unsigned char c= dst[k+l];
sprintf(buf, "%.2x ", (unsigned)c);
}
ADD_FAILURE() << buf;
}
ADD_FAILURE() << "src length: " << src_len
<< "dst length: " << dst_len;
}
free(str);
free(src);
free(dst);
}
}
}