Charon/blockchain
1
0
Fork 0
forked from lthn/blockchain
Code Pull requests Activity

unittests: lmdb.2gb_test improved to catch a stochastic bug

Browse source
This commit is contained in:
sowle 2019-12-19 03:29:32 +03:00
parent 8548e2d006
commit e80f778ec2
No known key found for this signature in database
GPG key ID: C07A24B2D89D49FC
1 changed files with 51 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

52
tests/unit_tests/lmdb_tests.cpp
View file

@ -5,6 +5,8 @@
#include <memory>
#include <thread>
#include <atomic>
#include <boost/format.hpp>
#include <bitset>
#include "epee/include/include_base_utils.h"
@ -963,7 +965,55 @@ namespace lmdb_test
ASSERT_TRUE(r);
ASSERT_EQ(buffer_size, out_buffer.size());
ASSERT_TRUE(0 == memcmp(buffer.data(), out_buffer.c_str(), buffer_size));
if (memcmp(buffer.data(), out_buffer.c_str(), buffer_size) != 0)
{
// read data doesn't match with written one
std::cout << "ERROR: data missmatch at key " << key << ", total_data = " << total_data << std::endl;
size_t wrong_bytes = 0;
size_t wrong_bytes_min_idx = SIZE_MAX;
size_t wrong_bytes_max_idx = 0;
for (size_t i = 0; i < buffer_size; ++i)
{
if (buffer[i] != static_cast<unsigned char>(out_buffer[i]))
{
++wrong_bytes;
if (wrong_bytes_min_idx == SIZE_MAX)
wrong_bytes_min_idx = i;
if (wrong_bytes_max_idx < i)
wrong_bytes_max_idx = i;
if (wrong_bytes < 10)
{
std::cout << "wrong byte at buffer offset " << boost::format("0x%04x") % i << ", file offset " << boost::format("0x%08x") % (total_data + i) << ": " <<
boost::format("%02x") % static_cast<unsigned int>(static_cast<unsigned char>(out_buffer[i])) << " = " << std::bitset<8>(out_buffer[i]) << " instead of " <<
boost::format("%02x") % static_cast<unsigned int>(buffer[i]) << " = " << std::bitset<8>(buffer[i]) << std::endl;
}
}
}
std::cout << "wrong bytes: " << wrong_bytes << " of " << buffer_size << " (" << std::fixed << std::setprecision(2) << 100.0 * wrong_bytes / buffer_size << "%)" << std::endl;
size_t line_len = 32;
size_t wrong_bytes_min_line = wrong_bytes_min_idx / line_len;
size_t wrong_bytes_max_line = wrong_bytes_max_idx / line_len + 1;
for (size_t l = wrong_bytes_min_line; l < wrong_bytes_max_line; ++l)
{
std::cout << boost::format("\n0x%04x ") % ( l * line_len );
for(size_t i = l * line_len; i < (l + 1) * line_len; ++i)
std::cout << boost::format("%02x") % static_cast<unsigned int>(buffer[i]) << (i % 4 == 3 ? " " : "");
std::cout << " ";
for(size_t i = l * line_len; i < (l + 1) * line_len; ++i)
std::cout << boost::format("%02x") % static_cast<unsigned int>(static_cast<unsigned char>(out_buffer[i])) << (i % 4 == 3 ? " " : "");
}
std::cout << std::endl;
ASSERT_TRUE(false);
}
total_data += buffer_size;
if (key % 1024 == 0)