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// Copyright (c) 2012-2013 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#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 / 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); \
ASSERT_TRUE(m_block_not_too_big); \
ASSERT_EQ(m_block_reward, UINT64_C(expected_reward));
TEST_F(block_reward_and_already_generated_coins, handles_first_values)
{
TEST_ALREADY_GENERATED_COINS(0, 70368744177663);
TEST_ALREADY_GENERATED_COINS(m_block_reward, 70368475742208);
TEST_ALREADY_GENERATED_COINS(UINT64_C(2756434948434199641), 59853779316998);
}
TEST_F(block_reward_and_already_generated_coins, correctly_steps_from_2_to_1)
{
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - ((2 << 18) + 1), 2);
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - (2 << 18) , 2);
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - ((2 << 18) - 1), 1);
}
TEST_F(block_reward_and_already_generated_coins, handles_max)
{
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - ((1 << 18) + 1), 1);
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - (1 << 18) , 1);
TEST_ALREADY_GENERATED_COINS(MONEY_SUPPLY - ((1 << 18) - 1), 0);
}
//--------------------------------------------------------------------------------------------------------------------
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);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_LT(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE, 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);
}
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 - 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);
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 + 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 - 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);
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 + 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);
m_last_block_sizes.push_back(5 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE);
m_last_block_sizes.push_back(7 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE);
m_last_block_sizes.push_back(11 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE);
m_last_block_sizes.push_back(13 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE);
m_last_block_sizes_median = 7 * CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE;
m_block_not_too_big = get_block_reward(epee::misc_utils::median(m_last_block_sizes), 0, already_generated_coins, m_standard_block_reward);
ASSERT_TRUE(m_block_not_too_big);
ASSERT_LT(CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE, 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);
}
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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