forked from townforge/townforge
275 lines
11 KiB
C++
275 lines
11 KiB
C++
// Copyright (c) 2014-2020, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#include "chaingen.h"
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#include "block_reward.h"
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using namespace epee;
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using namespace cryptonote;
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namespace
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{
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bool construct_miner_tx_by_weight(transaction& miner_tx, uint64_t height, uint64_t already_generated_coins,
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const account_public_address& miner_address, std::vector<size_t>& block_weights, size_t target_tx_weight,
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size_t target_block_weight, uint64_t fee = 0)
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{
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if (!construct_miner_tx(height, misc_utils::median(block_weights), already_generated_coins, target_block_weight, fee, miner_address, miner_tx))
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return false;
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size_t current_weight = get_transaction_weight(miner_tx);
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size_t try_count = 0;
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while (target_tx_weight != current_weight)
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{
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++try_count;
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if (10 < try_count)
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return false;
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if (target_tx_weight < current_weight)
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{
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size_t diff = current_weight - target_tx_weight;
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if (diff <= miner_tx.extra.size())
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miner_tx.extra.resize(miner_tx.extra.size() - diff);
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else
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return false;
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}
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else
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{
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size_t diff = target_tx_weight - current_weight;
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miner_tx.extra.resize(miner_tx.extra.size() + diff);
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}
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current_weight = get_transaction_weight(miner_tx);
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}
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return true;
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}
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bool construct_max_weight_block(test_generator& generator, block& blk, const block& blk_prev, const account_base& miner_account,
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size_t median_block_count = CRYPTONOTE_REWARD_BLOCKS_WINDOW)
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{
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std::vector<size_t> block_weights;
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generator.get_last_n_block_weights(block_weights, get_block_hash(blk_prev), median_block_count);
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size_t median = misc_utils::median(block_weights);
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median = std::max(median, static_cast<size_t>(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1));
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transaction miner_tx;
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bool r = construct_miner_tx_by_weight(miner_tx, get_block_height(blk_prev) + 1, generator.get_already_generated_coins(blk_prev),
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miner_account.get_keys().m_account_address, block_weights, 2 * median, 2 * median);
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if (!r)
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return false;
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return generator.construct_block_manually(blk, blk_prev, miner_account, test_generator::bf_miner_tx, 0, 0, 0,
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crypto::hash(), 0, miner_tx);
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}
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bool rewind_blocks(std::vector<test_event_entry>& events, test_generator& generator, block& blk, const block& blk_prev,
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const account_base& miner_account, size_t block_count)
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{
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blk = blk_prev;
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for (size_t i = 0; i < block_count; ++i)
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{
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block blk_i;
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if (!construct_max_weight_block(generator, blk_i, blk, miner_account))
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return false;
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events.push_back(blk_i);
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blk = blk_i;
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}
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return true;
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}
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uint64_t get_tx_out_amount(const transaction& tx)
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{
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uint64_t amount = 0;
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BOOST_FOREACH(auto& o, tx.vout)
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amount += o.amount;
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return amount;
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}
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}
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gen_block_reward::gen_block_reward()
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: m_invalid_block_index(0)
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{
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REGISTER_CALLBACK_METHOD(gen_block_reward, mark_invalid_block);
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REGISTER_CALLBACK_METHOD(gen_block_reward, mark_checked_block);
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REGISTER_CALLBACK_METHOD(gen_block_reward, check_block_rewards);
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}
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bool gen_block_reward::generate(std::vector<test_event_entry>& events) const
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{
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uint64_t ts_start = 1338224400;
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GENERATE_ACCOUNT(miner_account);
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MAKE_GENESIS_BLOCK(events, blk_0, miner_account, ts_start);
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DO_CALLBACK(events, "mark_checked_block");
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MAKE_ACCOUNT(events, bob_account);
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// Test: miner transactions without outputs (block reward == 0)
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block blk_0r;
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if (!rewind_blocks(events, generator, blk_0r, blk_0, miner_account, CRYPTONOTE_REWARD_BLOCKS_WINDOW))
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return false;
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// Test: block reward is calculated using median of the latest CRYPTONOTE_REWARD_BLOCKS_WINDOW blocks
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DO_CALLBACK(events, "mark_invalid_block");
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block blk_1_bad_1;
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if (!construct_max_weight_block(generator, blk_1_bad_1, blk_0r, miner_account, CRYPTONOTE_REWARD_BLOCKS_WINDOW + 1))
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return false;
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events.push_back(blk_1_bad_1);
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DO_CALLBACK(events, "mark_invalid_block");
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block blk_1_bad_2;
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if (!construct_max_weight_block(generator, blk_1_bad_2, blk_0r, miner_account, CRYPTONOTE_REWARD_BLOCKS_WINDOW - 1))
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return false;
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events.push_back(blk_1_bad_2);
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block blk_1;
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if (!construct_max_weight_block(generator, blk_1, blk_0r, miner_account))
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return false;
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events.push_back(blk_1);
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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MAKE_NEXT_BLOCK(events, blk_2, blk_1, miner_account);
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DO_CALLBACK(events, "mark_checked_block");
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MAKE_NEXT_BLOCK(events, blk_3, blk_2, miner_account);
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DO_CALLBACK(events, "mark_checked_block");
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MAKE_NEXT_BLOCK(events, blk_4, blk_3, miner_account);
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DO_CALLBACK(events, "mark_checked_block");
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MAKE_NEXT_BLOCK(events, blk_5, blk_4, miner_account);
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DO_CALLBACK(events, "mark_checked_block");
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block blk_5r;
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if (!rewind_blocks(events, generator, blk_5r, blk_5, miner_account, CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW))
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return false;
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// Test: fee increases block reward
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transaction tx_0(construct_tx_with_fee(events, blk_5, miner_account, bob_account, MK_COINS(1), 3 * TESTS_DEFAULT_FEE));
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MAKE_NEXT_BLOCK_TX1(events, blk_6, blk_5r, miner_account, tx_0);
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DO_CALLBACK(events, "mark_checked_block");
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// Test: fee from all block transactions increase block reward
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std::list<transaction> txs_0;
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txs_0.push_back(construct_tx_with_fee(events, blk_5, miner_account, bob_account, MK_COINS(1), 5 * TESTS_DEFAULT_FEE));
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txs_0.push_back(construct_tx_with_fee(events, blk_5, miner_account, bob_account, MK_COINS(1), 7 * TESTS_DEFAULT_FEE));
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MAKE_NEXT_BLOCK_TX_LIST(events, blk_7, blk_6, miner_account, txs_0);
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DO_CALLBACK(events, "mark_checked_block");
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// Test: block reward == transactions fee
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{
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transaction tx_1 = construct_tx_with_fee(events, blk_5, miner_account, bob_account, MK_COINS(1), 11 * TESTS_DEFAULT_FEE);
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transaction tx_2 = construct_tx_with_fee(events, blk_5, miner_account, bob_account, MK_COINS(1), 13 * TESTS_DEFAULT_FEE);
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size_t txs_1_weight = get_transaction_weight(tx_1) + get_transaction_weight(tx_2);
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uint64_t txs_fee = get_tx_fee(tx_1) + get_tx_fee(tx_2);
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std::vector<size_t> block_weights;
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generator.get_last_n_block_weights(block_weights, get_block_hash(blk_7), CRYPTONOTE_REWARD_BLOCKS_WINDOW);
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size_t median = misc_utils::median(block_weights);
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transaction miner_tx;
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bool r = construct_miner_tx_by_weight(miner_tx, get_block_height(blk_7) + 1, generator.get_already_generated_coins(blk_7),
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miner_account.get_keys().m_account_address, block_weights, 2 * median - txs_1_weight, 2 * median, txs_fee);
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if (!r)
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return false;
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std::vector<crypto::hash> txs_1_hashes;
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txs_1_hashes.push_back(get_transaction_hash(tx_1));
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txs_1_hashes.push_back(get_transaction_hash(tx_2));
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block blk_8;
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generator.construct_block_manually(blk_8, blk_7, miner_account, test_generator::bf_miner_tx | test_generator::bf_tx_hashes,
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0, 0, 0, crypto::hash(), 0, miner_tx, txs_1_hashes, txs_1_weight);
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events.push_back(blk_8);
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DO_CALLBACK(events, "mark_checked_block");
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}
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DO_CALLBACK(events, "check_block_rewards");
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return true;
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}
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bool gen_block_reward::check_block_verification_context(const cryptonote::block_verification_context& bvc, size_t event_idx, const cryptonote::block& /*blk*/)
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{
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if (m_invalid_block_index == event_idx)
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{
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m_invalid_block_index = 0;
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return bvc.m_verifivation_failed;
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}
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else
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{
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return !bvc.m_verifivation_failed;
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}
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}
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bool gen_block_reward::mark_invalid_block(cryptonote::core& /*c*/, size_t ev_index, const std::vector<test_event_entry>& /*events*/)
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{
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m_invalid_block_index = ev_index + 1;
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return true;
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}
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bool gen_block_reward::mark_checked_block(cryptonote::core& /*c*/, size_t ev_index, const std::vector<test_event_entry>& /*events*/)
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{
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m_checked_blocks_indices.push_back(ev_index - 1);
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return true;
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}
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bool gen_block_reward::check_block_rewards(cryptonote::core& /*c*/, size_t /*ev_index*/, const std::vector<test_event_entry>& events)
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{
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DEFINE_TESTS_ERROR_CONTEXT("gen_block_reward_without_txs::check_block_rewards");
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std::array<uint64_t, 7> blk_rewards;
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blk_rewards[0] = MONEY_SUPPLY >> EMISSION_SPEED_FACTOR_PER_BLOCK;
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uint64_t cumulative_reward = blk_rewards[0];
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for (size_t i = 1; i < blk_rewards.size(); ++i)
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{
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blk_rewards[i] = (MONEY_SUPPLY - cumulative_reward) >> EMISSION_SPEED_FACTOR_PER_BLOCK;
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cumulative_reward += blk_rewards[i];
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}
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for (size_t i = 0; i < 5; ++i)
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{
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block blk_i = boost::get<block>(events[m_checked_blocks_indices[i]]);
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CHECK_EQ(blk_rewards[i], get_tx_out_amount(blk_i.miner_tx));
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}
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block blk_n1 = boost::get<block>(events[m_checked_blocks_indices[5]]);
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CHECK_EQ(blk_rewards[5] + 3 * TESTS_DEFAULT_FEE, get_tx_out_amount(blk_n1.miner_tx));
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block blk_n2 = boost::get<block>(events[m_checked_blocks_indices[6]]);
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CHECK_EQ(blk_rewards[6] + (5 + 7) * TESTS_DEFAULT_FEE, get_tx_out_amount(blk_n2.miner_tx));
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block blk_n3 = boost::get<block>(events[m_checked_blocks_indices[7]]);
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CHECK_EQ((11 + 13) * TESTS_DEFAULT_FEE, get_tx_out_amount(blk_n3.miner_tx));
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return true;
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}
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