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danicoin/tests/unit_tests/block_reward.cpp
moneromooo-monero eee44e62bc
unit_tests: fix block reward test using post hard fork settings 
This would fail, as the post hard fork settings would yield
different data, and the test expects pre hard fork data.
2015-12-13 11:18:59 +00:00

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// Copyright (c) 2014-2015, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
#include "gtest/gtest.h"
#include "cryptonote_core/cryptonote_basic_impl.h"
using namespace cryptonote;
namespace
{
//--------------------------------------------------------------------------------------------------------------------
class block_reward_and_already_generated_coins : public ::testing::Test
{
protected:
static const size_t current_block_size = CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1 / 2;
bool m_block_not_too_big;
uint64_t m_block_reward;
};
#define TEST_ALREADY_GENERATED_COINS(already_generated_coins, expected_reward) \
m_block_not_too_big = get_block_reward(0, current_block_size, already_generated_coins, m_block_reward,1); \
ASSERT_TRUE(m_block_not_too_big); \
ASSERT_EQ(m_block_reward, expected_reward);
TEST_F(block_reward_and_already_generated_coins, handles_first_values)
{
// 17592186044415 from neozaru, confirmed by fluffypony
TEST_ALREADY_GENERATED_COINS(0, UINT64_C(17592186044415));
TEST_ALREADY_GENERATED_COINS(m_block_reward, UINT64_C(17592169267200));
TEST_ALREADY_GENERATED_COINS(UINT64_C(2756434948434199641), UINT64_C(14963444829249));
}
TEST_F(block_reward_and_already_generated_coins, correctly_steps_from_2_to_1)
{
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - ((2 << 20) + 1), FINAL_SUBSIDY_PER_MINUTE);
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - (2 << 20) , FINAL_SUBSIDY_PER_MINUTE);
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - ((2 << 20) - 1), FINAL_SUBSIDY_PER_MINUTE);
}
TEST_F(block_reward_and_already_generated_coins, handles_max)
{
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - ((1 << 20) + 1), FINAL_SUBSIDY_PER_MINUTE);
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - (1 << 20) , FINAL_SUBSIDY_PER_MINUTE);
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - ((1 << 20) - 1), FINAL_SUBSIDY_PER_MINUTE);
}
//--------------------------------------------------------------------------------------------------------------------
class block_reward_and_current_block_size : public ::testing::Test
{
protected:
virtual void SetUp()
{
m_block_not_too_big = get_block_reward(0, 0, already_generated_coins, m_standard_block_reward, 1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_LT(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1, m_standard_block_reward);
}
void do_test(size_t median_block_size, size_t current_block_size)
{
m_block_not_too_big = get_block_reward(median_block_size, current_block_size, already_generated_coins, m_block_reward, 1);
}
static const uint64_t already_generated_coins = 0;
bool m_block_not_too_big;
uint64_t m_block_reward;
uint64_t m_standard_block_reward;
};
TEST_F(block_reward_and_current_block_size, handles_block_size_less_relevance_level)
{
do_test(0, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1 - 1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(m_block_reward, m_standard_block_reward);
}
TEST_F(block_reward_and_current_block_size, handles_block_size_eq_relevance_level)
{
do_test(0, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(m_block_reward, m_standard_block_reward);
}
TEST_F(block_reward_and_current_block_size, handles_block_size_gt_relevance_level)
{
do_test(0, CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1 + 1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_LT(m_block_reward, m_standard_block_reward);
}
TEST_F(block_reward_and_current_block_size, handles_block_size_less_2_relevance_level)
{
do_test(0, 2 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1 - 1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_LT(m_block_reward, m_standard_block_reward);
ASSERT_LT(0, m_block_reward);
}
TEST_F(block_reward_and_current_block_size, handles_block_size_eq_2_relevance_level)
{
do_test(0, 2 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(0, m_block_reward);
}
TEST_F(block_reward_and_current_block_size, handles_block_size_gt_2_relevance_level)
{
do_test(0, 2 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1 + 1);
ASSERT_FALSE(m_block_not_too_big);
}
TEST_F(block_reward_and_current_block_size, fails_on_huge_median_size)
{
#if !defined(NDEBUG)
size_t huge_size = std::numeric_limits<uint32_t>::max() + UINT64_C(2);
ASSERT_DEATH(do_test(huge_size, huge_size + 1), "");
#endif
}
TEST_F(block_reward_and_current_block_size, fails_on_huge_block_size)
{
#if !defined(NDEBUG)
size_t huge_size = std::numeric_limits<uint32_t>::max() + UINT64_C(2);
ASSERT_DEATH(do_test(huge_size - 2, huge_size), "");
#endif
}
//--------------------------------------------------------------------------------------------------------------------
class block_reward_and_last_block_sizes : public ::testing::Test
{
protected:
virtual void SetUp()
{
m_last_block_sizes.push_back(3 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1);
m_last_block_sizes.push_back(5 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1);
m_last_block_sizes.push_back(7 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1);
m_last_block_sizes.push_back(11 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1);
m_last_block_sizes.push_back(13 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1);
m_last_block_sizes_median = 7 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1;
m_block_not_too_big = get_block_reward(epee::misc_utils::median(m_last_block_sizes), 0, already_generated_coins, m_standard_block_reward, 1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_LT(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1, m_standard_block_reward);
}
void do_test(size_t current_block_size)
{
m_block_not_too_big = get_block_reward(epee::misc_utils::median(m_last_block_sizes), current_block_size, already_generated_coins, m_block_reward, 1);
}
static const uint64_t already_generated_coins = 0;
std::vector<size_t> m_last_block_sizes;
uint64_t m_last_block_sizes_median;
bool m_block_not_too_big;
uint64_t m_block_reward;
uint64_t m_standard_block_reward;
};
TEST_F(block_reward_and_last_block_sizes, handles_block_size_less_median)
{
do_test(m_last_block_sizes_median - 1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(m_block_reward, m_standard_block_reward);
}
TEST_F(block_reward_and_last_block_sizes, handles_block_size_eq_median)
{
do_test(m_last_block_sizes_median);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(m_block_reward, m_standard_block_reward);
}
TEST_F(block_reward_and_last_block_sizes, handles_block_size_gt_median)
{
do_test(m_last_block_sizes_median + 1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_LT(m_block_reward, m_standard_block_reward);
}
TEST_F(block_reward_and_last_block_sizes, handles_block_size_less_2_medians)
{
do_test(2 * m_last_block_sizes_median - 1);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_LT(m_block_reward, m_standard_block_reward);
ASSERT_LT(0, m_block_reward);
}
TEST_F(block_reward_and_last_block_sizes, handles_block_size_eq_2_medians)
{
do_test(2 * m_last_block_sizes_median);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(0, m_block_reward);
}
TEST_F(block_reward_and_last_block_sizes, handles_block_size_gt_2_medians)
{
do_test(2 * m_last_block_sizes_median + 1);
ASSERT_FALSE(m_block_not_too_big);
}
TEST_F(block_reward_and_last_block_sizes, calculates_correctly)
{
ASSERT_EQ(0, m_last_block_sizes_median % 8);
do_test(m_last_block_sizes_median * 9 / 8);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(m_block_reward, m_standard_block_reward * 63 / 64);
// 3/2 = 12/8
do_test(m_last_block_sizes_median * 3 / 2);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(m_block_reward, m_standard_block_reward * 3 / 4);
do_test(m_last_block_sizes_median * 15 / 8);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_EQ(m_block_reward, m_standard_block_reward * 15 / 64);
}
}
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