76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
// Copyright (c) 2012-2013 The Cryptonote developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "gtest/gtest.h"
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#include "include_base_utils.h"
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#include "currency_core/currency_format_utils.h"
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bool if_alt_chain_stronger(const currency::wide_difficulty_type& pos, const currency::wide_difficulty_type& pow)
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{
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currency::difficulties main_cumul_diff;
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main_cumul_diff.pos_diff = 400000;
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main_cumul_diff.pow_diff = 4000;
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currency::difficulties alt_cumul_diff;
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alt_cumul_diff.pow_diff = pow;
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alt_cumul_diff.pos_diff = pos;
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static currency::wide_difficulty_type difficulty_pos_at_split_point = 400000;
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static currency::wide_difficulty_type difficulty_pow_at_split_point = 4000;
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boost::multiprecision::uint1024_t main = currency::get_a_to_b_relative_cumulative_difficulty(difficulty_pos_at_split_point, difficulty_pow_at_split_point, main_cumul_diff, alt_cumul_diff);
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boost::multiprecision::uint1024_t alt = currency::get_a_to_b_relative_cumulative_difficulty(difficulty_pos_at_split_point, difficulty_pow_at_split_point, alt_cumul_diff, main_cumul_diff);
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if (alt > main)
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return true;
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return false;
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}
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TEST(fork_choice_rule_test, fork_choice_rule_test_1)
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{
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// std::stringstream ss;
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// for (uint64_t pos = 100000; pos < 1000001; pos += 10000)
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// {
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// for (uint64_t pow = 100; pow < 18000; pow += 100)
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// {
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// bool r = if_alt_chain_stronger(pos, pow);
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// if(r)
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// ss << pos << "\t" << pow << std::endl;
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// //ss << pos << "\t" << pow << "\t" << (r ? "1" : "0") << std::endl;
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//
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//
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// }
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// }
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// bool r = epee::file_io_utils::save_string_to_file("stat.txt", ss.str());
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bool res = false;
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res = if_alt_chain_stronger(1000000, 1000);
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ASSERT_FALSE(res);
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res = if_alt_chain_stronger(1000000, 1500);
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ASSERT_TRUE(res);
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res = if_alt_chain_stronger(800000, 1700);
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ASSERT_FALSE(res);
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res = if_alt_chain_stronger(800000, 2000);
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ASSERT_TRUE(res);
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res = if_alt_chain_stronger(600000, 2200);
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ASSERT_FALSE(res);
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res = if_alt_chain_stronger(600000, 2800);
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ASSERT_TRUE(res);
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res = if_alt_chain_stronger(400000, 3999);
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ASSERT_FALSE(res);
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res = if_alt_chain_stronger(400000, 4001);
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ASSERT_TRUE(res);
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res = if_alt_chain_stronger(200000, 7000);
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ASSERT_FALSE(res);
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res = if_alt_chain_stronger(200000, 7700);
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ASSERT_TRUE(res);
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res = if_alt_chain_stronger(200000, 7000);
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ASSERT_FALSE(res);
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res = if_alt_chain_stronger(200000, 7700);
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ASSERT_TRUE(res);
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res = if_alt_chain_stronger(100000, 10000);
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ASSERT_FALSE(res);
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res = if_alt_chain_stronger(200000, 14000);
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ASSERT_TRUE(res);
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}
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