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monero/tests/unit_tests/hardfork.cpp

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// Copyright (c) 2014-2017, 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 <algorithm>
#include "gtest/gtest.h"
#include "blockchain_db/lmdb/db_lmdb.h"
#include "cryptonote_basic/cryptonote_format_utils.h"
#include "cryptonote_basic/hardfork.h"
using namespace cryptonote;
#define BLOCKS_PER_YEAR 525960
#define SECONDS_PER_YEAR 31557600
class TestDB: public BlockchainDB {
public:
TestDB() {};
virtual void open(const std::string& filename, const int db_flags = 0) { }
virtual void close() {}
virtual void sync() {}
virtual void reset() {}
virtual std::vector<std::string> get_filenames() const { return std::vector<std::string>(); }
virtual std::string get_db_name() const { return std::string(); }
virtual bool lock() { return true; }
virtual void unlock() { }
virtual bool batch_start(uint64_t batch_num_blocks=0) { return true; }
virtual void batch_stop() {}
virtual void set_batch_transactions(bool) {}
virtual void block_txn_start(bool readonly=false) {}
virtual void block_txn_stop() {}
virtual void block_txn_abort() {}
virtual void drop_hard_fork_info() {}
virtual bool block_exists(const crypto::hash& h, uint64_t *height) const { return false; }
virtual blobdata get_block_blob_from_height(const uint64_t& height) const { return cryptonote::t_serializable_object_to_blob(get_block_from_height(height)); }
virtual blobdata get_block_blob(const crypto::hash& h) const { return blobdata(); }
virtual bool get_tx_blob(const crypto::hash& h, cryptonote::blobdata &tx) const { return false; }
virtual uint64_t get_block_height(const crypto::hash& h) const { return 0; }
virtual block_header get_block_header(const crypto::hash& h) const { return block_header(); }
virtual uint64_t get_block_timestamp(const uint64_t& height) const { return 0; }
virtual uint64_t get_top_block_timestamp() const { return 0; }
virtual size_t get_block_size(const uint64_t& height) const { return 128; }
virtual difficulty_type get_block_cumulative_difficulty(const uint64_t& height) const { return 10; }
virtual difficulty_type get_block_difficulty(const uint64_t& height) const { return 0; }
virtual uint64_t get_block_already_generated_coins(const uint64_t& height) const { return 10000000000; }
virtual crypto::hash get_block_hash_from_height(const uint64_t& height) const { return crypto::hash(); }
virtual std::vector<block> get_blocks_range(const uint64_t& h1, const uint64_t& h2) const { return std::vector<block>(); }
virtual std::vector<crypto::hash> get_hashes_range(const uint64_t& h1, const uint64_t& h2) const { return std::vector<crypto::hash>(); }
virtual crypto::hash top_block_hash() const { return crypto::hash(); }
virtual block get_top_block() const { return block(); }
virtual uint64_t height() const { return blocks.size(); }
virtual bool tx_exists(const crypto::hash& h) const { return false; }
virtual bool tx_exists(const crypto::hash& h, uint64_t& tx_index) const { return false; }
virtual uint64_t get_tx_unlock_time(const crypto::hash& h) const { return 0; }
virtual transaction get_tx(const crypto::hash& h) const { return transaction(); }
virtual bool get_tx(const crypto::hash& h, transaction &tx) const { return false; }
virtual uint64_t get_tx_count() const { return 0; }
virtual std::vector<transaction> get_tx_list(const std::vector<crypto::hash>& hlist) const { return std::vector<transaction>(); }
virtual uint64_t get_tx_block_height(const crypto::hash& h) const { return 0; }
virtual uint64_t get_num_outputs(const uint64_t& amount) const { return 1; }
virtual uint64_t get_indexing_base() const { return 0; }
virtual output_data_t get_output_key(const uint64_t& amount, const uint64_t& index) { return output_data_t(); }
virtual output_data_t get_output_key(const uint64_t& global_index) const { return output_data_t(); }
virtual tx_out_index get_output_tx_and_index_from_global(const uint64_t& index) const { return tx_out_index(); }
virtual tx_out_index get_output_tx_and_index(const uint64_t& amount, const uint64_t& index) const { return tx_out_index(); }
virtual void get_output_tx_and_index(const uint64_t& amount, const std::vector<uint64_t> &offsets, std::vector<tx_out_index> &indices) const {}
virtual void get_output_key(const uint64_t &amount, const std::vector<uint64_t> &offsets, std::vector<output_data_t> &outputs, bool allow_partial = false) {}
virtual bool can_thread_bulk_indices() const { return false; }
virtual std::vector<uint64_t> get_tx_output_indices(const crypto::hash& h) const { return std::vector<uint64_t>(); }
virtual std::vector<uint64_t> get_tx_amount_output_indices(const uint64_t tx_index) const { return std::vector<uint64_t>(); }
virtual bool has_key_image(const crypto::key_image& img) const { return false; }
virtual void remove_block() { blocks.pop_back(); }
virtual uint64_t add_transaction_data(const crypto::hash& blk_hash, const transaction& tx, const crypto::hash& tx_hash) {return 0;}
virtual void remove_transaction_data(const crypto::hash& tx_hash, const transaction& tx) {}
virtual uint64_t add_output(const crypto::hash& tx_hash, const tx_out& tx_output, const uint64_t& local_index, const uint64_t unlock_time, const rct::key *commitment) {return 0;}
virtual void add_tx_amount_output_indices(const uint64_t tx_index, const std::vector<uint64_t>& amount_output_indices) {}
virtual void add_spent_key(const crypto::key_image& k_image) {}
virtual void remove_spent_key(const crypto::key_image& k_image) {}
virtual bool for_all_key_images(std::function<bool(const crypto::key_image&)>) const { return true; }
virtual bool for_all_blocks(std::function<bool(uint64_t, const crypto::hash&, const cryptonote::block&)>) const { return true; }
virtual bool for_all_transactions(std::function<bool(const crypto::hash&, const cryptonote::transaction&)>) const { return true; }
virtual bool for_all_outputs(std::function<bool(uint64_t amount, const crypto::hash &tx_hash, size_t tx_idx)> f) const { return true; }
virtual bool is_read_only() const { return false; }
virtual std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> get_output_histogram(const std::vector<uint64_t> &amounts, bool unlocked, uint64_t recent_cutoff) const { return std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>>(); }
virtual void add_block( const block& blk
, const size_t& block_size
, const difficulty_type& cumulative_difficulty
, const uint64_t& coins_generated
, const crypto::hash& blk_hash
) {
blocks.push_back(blk);
}
virtual block get_block_from_height(const uint64_t& height) const {
return blocks.at(height);
}
virtual void set_hard_fork_version(uint64_t height, uint8_t version) {
if (versions.size() <= height)
versions.resize(height+1);
versions[height] = version;
}
virtual uint8_t get_hard_fork_version(uint64_t height) const {
return versions.at(height);
}
virtual void check_hard_fork_info() {}
private:
std::vector<block> blocks;
std::deque<uint8_t> versions;
};
static cryptonote::block mkblock(uint8_t version, uint8_t vote)
{
cryptonote::block b;
b.major_version = version;
b.minor_version = vote;
return b;
}
static cryptonote::block mkblock(const HardFork &hf, uint64_t height, uint8_t vote)
{
cryptonote::block b;
b.major_version = hf.get(height);
b.minor_version = vote;
return b;
}
TEST(major, Only)
{
TestDB db;
HardFork hf(db, 1, 0, 0, 0, 1, 0); // no voting
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(2, 2, 1));
hf.init();
// block height 0, only version 1 is accepted
ASSERT_FALSE(hf.add(mkblock(0, 2), 0));
ASSERT_FALSE(hf.add(mkblock(2, 2), 0));
ASSERT_TRUE(hf.add(mkblock(1, 2), 0));
db.add_block(mkblock(1, 1), 0, 0, 0, crypto::hash());
// block height 1, only version 1 is accepted
ASSERT_FALSE(hf.add(mkblock(0, 2), 1));
ASSERT_FALSE(hf.add(mkblock(2, 2), 1));
ASSERT_TRUE(hf.add(mkblock(1, 2), 1));
db.add_block(mkblock(1, 1), 0, 0, 0, crypto::hash());
// block height 2, only version 2 is accepted
ASSERT_FALSE(hf.add(mkblock(0, 2), 2));
ASSERT_FALSE(hf.add(mkblock(1, 2), 2));
ASSERT_FALSE(hf.add(mkblock(3, 2), 2));
ASSERT_TRUE(hf.add(mkblock(2, 2), 2));
db.add_block(mkblock(2, 1), 0, 0, 0, crypto::hash());
}
TEST(empty_hardforks, Success)
{
TestDB db;
HardFork hf(db);
ASSERT_TRUE(hf.add_fork(1, 0, 0));
hf.init();
ASSERT_TRUE(hf.get_state(time(NULL)) == HardFork::Ready);
ASSERT_TRUE(hf.get_state(time(NULL) + 3600*24*400) == HardFork::Ready);
for (uint64_t h = 0; h <= 10; ++h) {
db.add_block(mkblock(hf, h, 1), 0, 0, 0, crypto::hash());
ASSERT_TRUE(hf.add(db.get_block_from_height(h), h));
}
ASSERT_EQ(hf.get(0), 1);
ASSERT_EQ(hf.get(1), 1);
ASSERT_EQ(hf.get(10), 1);
}
TEST(ordering, Success)
{
TestDB db;
HardFork hf(db);
ASSERT_TRUE(hf.add_fork(2, 2, 1));
ASSERT_FALSE(hf.add_fork(3, 3, 1));
ASSERT_FALSE(hf.add_fork(3, 2, 2));
ASSERT_FALSE(hf.add_fork(2, 3, 2));
ASSERT_TRUE(hf.add_fork(3, 10, 2));
ASSERT_TRUE(hf.add_fork(4, 20, 3));
ASSERT_FALSE(hf.add_fork(5, 5, 4));
}
TEST(states, Success)
{
TestDB db;
HardFork hf(db);
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(2, BLOCKS_PER_YEAR, SECONDS_PER_YEAR));
ASSERT_TRUE(hf.get_state(0) == HardFork::Ready);
ASSERT_TRUE(hf.get_state(SECONDS_PER_YEAR / 2) == HardFork::Ready);
ASSERT_TRUE(hf.get_state(SECONDS_PER_YEAR + HardFork::DEFAULT_UPDATE_TIME / 2) == HardFork::Ready);
ASSERT_TRUE(hf.get_state(SECONDS_PER_YEAR + (HardFork::DEFAULT_UPDATE_TIME + HardFork::DEFAULT_FORKED_TIME) / 2) == HardFork::UpdateNeeded);
ASSERT_TRUE(hf.get_state(SECONDS_PER_YEAR + HardFork::DEFAULT_FORKED_TIME * 2) == HardFork::LikelyForked);
ASSERT_TRUE(hf.add_fork(3, BLOCKS_PER_YEAR * 5, SECONDS_PER_YEAR * 5));
ASSERT_TRUE(hf.get_state(0) == HardFork::Ready);
ASSERT_TRUE(hf.get_state(SECONDS_PER_YEAR / 2) == HardFork::Ready);
ASSERT_TRUE(hf.get_state(SECONDS_PER_YEAR + HardFork::DEFAULT_UPDATE_TIME / 2) == HardFork::Ready);
ASSERT_TRUE(hf.get_state(SECONDS_PER_YEAR + (HardFork::DEFAULT_UPDATE_TIME + HardFork::DEFAULT_FORKED_TIME) / 2) == HardFork::Ready);
ASSERT_TRUE(hf.get_state(SECONDS_PER_YEAR + HardFork::DEFAULT_FORKED_TIME * 2) == HardFork::Ready);
}
TEST(steps_asap, Success)
{
TestDB db;
HardFork hf(db, 1,0,1,1,1);
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(4, 2, 1));
ASSERT_TRUE(hf.add_fork(7, 4, 2));
ASSERT_TRUE(hf.add_fork(9, 6, 3));
hf.init();
for (uint64_t h = 0; h < 10; ++h) {
db.add_block(mkblock(hf, h, 9), 0, 0, 0, crypto::hash());
ASSERT_TRUE(hf.add(db.get_block_from_height(h), h));
}
ASSERT_EQ(hf.get(0), 1);
ASSERT_EQ(hf.get(1), 1);
ASSERT_EQ(hf.get(2), 4);
ASSERT_EQ(hf.get(3), 4);
ASSERT_EQ(hf.get(4), 7);
ASSERT_EQ(hf.get(5), 7);
ASSERT_EQ(hf.get(6), 9);
ASSERT_EQ(hf.get(7), 9);
ASSERT_EQ(hf.get(8), 9);
ASSERT_EQ(hf.get(9), 9);
}
TEST(steps_1, Success)
{
TestDB db;
HardFork hf(db, 1,0,1,1,1);
ASSERT_TRUE(hf.add_fork(1, 0, 0));
for (int n = 1 ; n < 10; ++n)
ASSERT_TRUE(hf.add_fork(n+1, n, n));
hf.init();
for (uint64_t h = 0 ; h < 10; ++h) {
db.add_block(mkblock(hf, h, h+1), 0, 0, 0, crypto::hash());
ASSERT_TRUE(hf.add(db.get_block_from_height(h), h));
}
for (uint64_t h = 0; h < 10; ++h) {
ASSERT_EQ(hf.get(h), std::max(1,(int)h));
}
}
TEST(reorganize, Same)
{
for (int history = 1; history <= 12; ++history) {
TestDB db;
HardFork hf(db, 1, 0, 1, 1, history, 100);
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(4, 2, 1));
ASSERT_TRUE(hf.add_fork(7, 4, 2));
ASSERT_TRUE(hf.add_fork(9, 6, 3));
hf.init();
// index 0 1 2 3 4 5 6 7 8 9
static const uint8_t block_versions[] = { 1, 1, 4, 4, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9 };
for (uint64_t h = 0; h < 20; ++h) {
db.add_block(mkblock(hf, h, block_versions[h]), 0, 0, 0, crypto::hash());
ASSERT_TRUE(hf.add(db.get_block_from_height(h), h));
}
for (uint64_t rh = 0; rh < 20; ++rh) {
hf.reorganize_from_block_height(rh);
for (int hh = 0; hh < 20; ++hh) {
uint8_t version = hh >= history ? block_versions[hh - history] : 1;
ASSERT_EQ(hf.get(hh), version);
}
}
}
}
TEST(reorganize, Changed)
{
TestDB db;
HardFork hf(db, 1, 0, 1, 1, 4, 100);
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(4, 2, 1));
ASSERT_TRUE(hf.add_fork(7, 4, 2));
ASSERT_TRUE(hf.add_fork(9, 6, 3));
hf.init();
// fork 4 7 9
// index 0 1 2 3 4 5 6 7 8 9
static const uint8_t block_versions[] = { 1, 1, 4, 4, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9 };
static const uint8_t expected_versions[] = { 1, 1, 1, 1, 1, 1, 4, 4, 7, 7, 9, 9, 9, 9, 9, 9 };
for (uint64_t h = 0; h < 16; ++h) {
db.add_block(mkblock(hf, h, block_versions[h]), 0, 0, 0, crypto::hash());
ASSERT_TRUE (hf.add(db.get_block_from_height(h), h));
}
for (uint64_t rh = 0; rh < 16; ++rh) {
hf.reorganize_from_block_height(rh);
for (int hh = 0; hh < 16; ++hh) {
ASSERT_EQ(hf.get(hh), expected_versions[hh]);
}
}
// delay a bit for 9, and go back to 1 to check it stays at 9
static const uint8_t block_versions_new[] = { 1, 1, 4, 4, 7, 7, 4, 7, 7, 7, 9, 9, 9, 9, 9, 1 };
static const uint8_t expected_versions_new[] = { 1, 1, 1, 1, 1, 1, 4, 4, 4, 4, 4, 7, 7, 7, 9, 9 };
for (uint64_t h = 3; h < 16; ++h) {
db.remove_block();
}
ASSERT_EQ(db.height(), 3);
hf.reorganize_from_block_height(2);
for (uint64_t h = 3; h < 16; ++h) {
db.add_block(mkblock(hf, h, block_versions_new[h]), 0, 0, 0, crypto::hash());
bool ret = hf.add(db.get_block_from_height(h), h);
ASSERT_EQ (ret, h < 15);
}
db.remove_block(); // last block added to the blockchain, but not hf
ASSERT_EQ(db.height(), 15);
for (int hh = 0; hh < 15; ++hh) {
ASSERT_EQ(hf.get(hh), expected_versions_new[hh]);
}
}
TEST(voting, threshold)
{
for (int threshold = 87; threshold <= 88; ++threshold) {
TestDB db;
HardFork hf(db, 1, 0, 1, 1, 8, threshold);
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(2, 2, 1));
hf.init();
for (uint64_t h = 0; h <= 8; ++h) {
uint8_t v = 1 + !!(h % 8);
db.add_block(mkblock(hf, h, v), 0, 0, 0, crypto::hash());
bool ret = hf.add(db.get_block_from_height(h), h);
if (h >= 8 && threshold == 87) {
// for threshold 87, we reach the treshold at height 7, so from height 8, hard fork to version 2, but 8 tries to add 1
ASSERT_FALSE(ret);
}
else {
// for threshold 88, we never reach the threshold
ASSERT_TRUE(ret);
uint8_t expected = threshold == 88 ? 1 : h < 8 ? 1 : 2;
ASSERT_EQ(hf.get(h), expected);
}
}
}
}
TEST(voting, different_thresholds)
{
for (int threshold = 87; threshold <= 88; ++threshold) {
TestDB db;
HardFork hf(db, 1, 0, 1, 1, 4, 50); // window size 4
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(2, 5, 0, 1)); // asap
ASSERT_TRUE(hf.add_fork(3, 10, 100, 2)); // all votes
ASSERT_TRUE(hf.add_fork(4, 15, 3)); // default 50% votes
hf.init();
// 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
static const uint8_t block_versions[] = { 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4 };
static const uint8_t expected_versions[] = { 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4 };
for (uint64_t h = 0; h < sizeof(block_versions) / sizeof(block_versions[0]); ++h) {
db.add_block(mkblock(hf, h, block_versions[h]), 0, 0, 0, crypto::hash());
bool ret = hf.add(db.get_block_from_height(h), h);
ASSERT_EQ(ret, true);
}
for (uint64_t h = 0; h < sizeof(expected_versions) / sizeof(expected_versions[0]); ++h) {
ASSERT_EQ(hf.get(h), expected_versions[h]);
}
}
}
TEST(new_blocks, denied)
{
TestDB db;
HardFork hf(db, 1, 0, 1, 1, 4, 50);
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(2, 2, 1));
hf.init();
ASSERT_TRUE(hf.add(mkblock(1, 1), 0));
ASSERT_TRUE(hf.add(mkblock(1, 1), 1));
ASSERT_TRUE(hf.add(mkblock(1, 1), 2));
ASSERT_TRUE(hf.add(mkblock(1, 2), 3));
ASSERT_TRUE(hf.add(mkblock(1, 1), 4));
ASSERT_TRUE(hf.add(mkblock(1, 1), 5));
ASSERT_TRUE(hf.add(mkblock(1, 1), 6));
ASSERT_TRUE(hf.add(mkblock(1, 2), 7));
ASSERT_TRUE(hf.add(mkblock(1, 2), 8)); // we reach 50% of the last 4
ASSERT_FALSE(hf.add(mkblock(2, 1), 9)); // so this one can't get added
ASSERT_TRUE(hf.add(mkblock(2, 2), 9));
}
TEST(new_version, early)
{
TestDB db;
HardFork hf(db, 1, 0, 1, 1, 4, 50);
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(2, 4, 1));
hf.init();
ASSERT_TRUE(hf.add(mkblock(1, 2), 0));
ASSERT_TRUE(hf.add(mkblock(1, 2), 1)); // we have enough votes already
ASSERT_TRUE(hf.add(mkblock(1, 2), 2));
ASSERT_TRUE(hf.add(mkblock(1, 1), 3)); // we accept a previous version because we did not switch, even with all the votes
ASSERT_TRUE(hf.add(mkblock(2, 2), 4)); // but have to wait for the declared height anyway
ASSERT_TRUE(hf.add(mkblock(2, 2), 5));
ASSERT_FALSE(hf.add(mkblock(2, 1), 6)); // we don't accept 1 anymore
ASSERT_TRUE(hf.add(mkblock(2, 2), 7)); // but we do accept 2
}
TEST(reorganize, changed)
{
TestDB db;
HardFork hf(db, 1, 0, 1, 1, 4, 50);
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(2, 2, 1));
ASSERT_TRUE(hf.add_fork(3, 5, 2));
ASSERT_TRUE(hf.add_fork(4, 555, 222));
hf.init();
#define ADD(v, h, a) \
do { \
cryptonote::block b = mkblock(hf, h, v); \
db.add_block(b, 0, 0, 0, crypto::hash()); \
ASSERT_##a(hf.add(b, h)); \
} while(0)
#define ADD_TRUE(v, h) ADD(v, h, TRUE)
#define ADD_FALSE(v, h) ADD(v, h, FALSE)
ADD_TRUE(1, 0);
ADD_TRUE(1, 1);
ADD_TRUE(2, 2);
ADD_TRUE(2, 3); // switch to 2 here
ADD_TRUE(2, 4);
ADD_TRUE(2, 5);
ADD_TRUE(2, 6);
ASSERT_EQ(hf.get_current_version(), 2);
ADD_TRUE(3, 7);
ADD_TRUE(4, 8);
ADD_TRUE(4, 9);
ASSERT_EQ(hf.get_current_version(), 3);
// pop a few blocks and check current version goes back down
db.remove_block();
hf.reorganize_from_block_height(8);
ASSERT_EQ(hf.get_current_version(), 3);
db.remove_block();
hf.reorganize_from_block_height(7);
ASSERT_EQ(hf.get_current_version(), 2);
db.remove_block();
ASSERT_EQ(hf.get_current_version(), 2);
// add blocks again, but remaining at 2
ADD_TRUE(2, 7);
ADD_TRUE(2, 8);
ADD_TRUE(2, 9);
ASSERT_EQ(hf.get_current_version(), 2); // we did not bump to 3 this time
}
TEST(get, higher)
{
TestDB db;
HardFork hf(db, 1, 0, 1, 1, 4, 50);
// v h t
ASSERT_TRUE(hf.add_fork(1, 0, 0));
ASSERT_TRUE(hf.add_fork(2, 2, 1));
ASSERT_TRUE(hf.add_fork(3, 5, 2));
hf.init();
ASSERT_EQ(hf.get_ideal_version(0), 1);
ASSERT_EQ(hf.get_ideal_version(1), 1);
ASSERT_EQ(hf.get_ideal_version(2), 2);
ASSERT_EQ(hf.get_ideal_version(3), 2);
ASSERT_EQ(hf.get_ideal_version(4), 2);
ASSERT_EQ(hf.get_ideal_version(5), 3);
ASSERT_EQ(hf.get_ideal_version(6), 3);
ASSERT_EQ(hf.get_ideal_version(7), 3);
}
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