coretests: alt_chain_and_block_tx_fee_median test (#456)
* coretests: alt_chain_and_block_tx_fee_median test * Run test "alt_chain_and_block_tx_fee_median" on run core tests * Edit the test preamble
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Stёpa Dolgorukov
GitHub
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3 changed files with 257 additions and 1 deletions
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@ -817,3 +817,241 @@ bool chain_switching_when_out_spent_in_alt_chain_ref_id::generate(std::vector<te
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return true;
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}
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alt_chain_and_block_tx_fee_median::alt_chain_and_block_tx_fee_median()
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{
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REGISTER_CALLBACK_METHOD(alt_chain_and_block_tx_fee_median, check_after_hf4);
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REGISTER_CALLBACK_METHOD(alt_chain_and_block_tx_fee_median, check_before_hf4);
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}
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bool alt_chain_and_block_tx_fee_median::generate(
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std::vector<test_event_entry>& events) const
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{
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/* Test idea: check chain switching rules.
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Rules before and after HF4 for PoW blocks are different. There're only PoW
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blocks in the test situation. If the last blocks contain transactions (non
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empty blocks), then the chain with the largest this_block_tx_fee_median on its
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head becomes the main.
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0 10 11 21 22
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(0 ) - ... - (0r) - (1 ) - ... - (1r) - (2 )
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| main | \
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| | [tx_0]
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| |
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| | main
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\ - (1a) \ - (2a)
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\
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[tx_1]
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Chain with head blk_1 versus chain with head blk_1a: chain with head blk_1
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is the main, because blocks 1, 1a are empty.
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Chain with head blk_2 versus chain with head blk_2a: chain with head blk_2a
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is the main, because blocks 2, 2a aren't empty and the fee of tx_1 is larger
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than the fee of tx_0.
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*/
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bool success{};
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bool hf4_active{};
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std::vector<tx_source_entry> sources{};
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std::vector<tx_destination_entry> destinations{};
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transaction tx_0{}, tx_1{};
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uint64_t tx_version{};
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crypto::hash top_block{};
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GENERATE_ACCOUNT(miner);
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MAKE_GENESIS_BLOCK(events,
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blk_0,
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miner,
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test_core_time::get_time());
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DO_CALLBACK(events, "configure_core");
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REWIND_BLOCKS_N(events, blk_0r, blk_0, miner,
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CURRENCY_MINED_MONEY_UNLOCK_WINDOW);
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MAKE_NEXT_BLOCK(events, blk_1, blk_0r, miner);
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MAKE_NEXT_BLOCK(events, blk_1a, blk_0r, miner);
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/* It is decided which chain will be the main: with the head blk_1 or with the
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head blk_1a.
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0 10 11
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/ - (1 )
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(0 ) - ... - (0r)
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\ - (1a)
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*/
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CHECK_AND_ASSERT_EQ(is_pos_block(blk_1), false);
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CHECK_AND_ASSERT_EQ(is_pos_block(blk_1a), false);
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CHECK_AND_ASSERT_EQ(get_block_height(blk_1), 11);
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CHECK_AND_ASSERT_EQ(get_block_height(blk_1), get_block_height(blk_1a));
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/* Blocks blk_1, blk_1a do not contain transactions (they are empty blocks).
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Switching to the alternative chain with head blk_1a will not occur. The main
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chain is the chain with the head blk_1. */
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DO_CALLBACK_PARAMS(events,
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"check_top_block",
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params_top_block(get_block_height(blk_1),
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get_block_hash(blk_1)));
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REWIND_BLOCKS_N(events, blk_1r, blk_1, miner,
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CURRENCY_MINED_MONEY_UNLOCK_WINDOW);
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// Transaction tx_0 is constructed and placed in block blk_2.
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success = fill_tx_sources_and_destinations(
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events,
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/* head = */ blk_1r,
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/* from = */ miner.get_keys(),
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/* to = */ miner.get_public_address(),
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/* amount = */ MK_TEST_COINS(10),
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/* fee = */ m_fee_tx_0_blk_2,
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/* nmix = */ 0,
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sources,
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destinations);
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CHECK_AND_ASSERT_MES(success, false, "fail to fill sources, destinations");
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tx_version = get_tx_version(get_block_height(blk_1r),
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m_hardforks);
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success = construct_tx(miner.get_keys(),
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sources,
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destinations,
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empty_attachment,
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tx_0,
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tx_version,
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0);
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CHECK_AND_ASSERT_MES(success, false, "fail to construct tx_0");
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ADD_CUSTOM_EVENT(events, tx_0);
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MAKE_NEXT_BLOCK_TX1(events, blk_2, blk_1r, miner, tx_0);
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sources.clear();
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destinations.clear();
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// Transaction tx_1 is constructed and placed in block blk_2a.
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tx_version = get_tx_version(get_block_height(blk_1r),
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m_hardforks);
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success = fill_tx_sources_and_destinations(
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events,
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/* head = */ blk_1r,
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/* from = */ miner.get_keys(),
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/* to = */ miner.get_public_address(),
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/* amount = */ MK_TEST_COINS(10),
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/* fee = */ m_fee_tx_1_blk_2a,
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/* nmix = */ 0,
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sources,
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destinations);
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CHECK_AND_ASSERT_MES(success, false, "fail to fill sources, destinations");
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success = construct_tx(miner.get_keys(),
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sources,
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destinations,
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empty_attachment,
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tx_1,
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tx_version,
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0);
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CHECK_AND_ASSERT_MES(success, false, "fail to construct tx_1");
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ADD_CUSTOM_EVENT(events, tx_1);
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MAKE_NEXT_BLOCK_TX1(events, blk_2a, blk_1r, miner, tx_1);
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/* It is decided which chain will be the main: with the head blk_2 or with the
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head blk_2a.
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0 21 22
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/ - (2 )
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| \
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| [tx_0]
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(0 ) - ... - (1r)
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\ - (2a)
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\
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[tx_1]
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*/
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CHECK_AND_ASSERT_EQ(is_pos_block(blk_2), false);
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CHECK_AND_ASSERT_EQ(is_pos_block(blk_2a), false);
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CHECK_AND_ASSERT_GREATER(m_fee_tx_1_blk_2a, m_fee_tx_0_blk_2);
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CHECK_AND_ASSERT_EQ(get_block_height(blk_2), 22);
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CHECK_AND_ASSERT_EQ(get_block_height(blk_2), get_block_height(blk_2a));
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hf4_active =
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m_hardforks.is_hardfork_active_for_height(ZANO_HARDFORK_04_ZARCANUM,
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get_block_height(blk_2) + 1);
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if (hf4_active)
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{
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/* With HF4 active, the chain with head blk_2a wins because transaction tx_1
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has a greater fee than transaction tx_0. The main chain is the chain with
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the head blk_2a. */
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DO_CALLBACK(events, "check_after_hf4");
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top_block = get_block_hash(blk_2a);
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}
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else
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{
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/* The chains have the same commulative difficulty. Therefore, with HF4
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inactive, switching to the chain with the blk_2a head will not occur. The
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main chain is the chain with the head blk_2. */
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DO_CALLBACK(events, "check_before_hf4");
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top_block = get_block_hash(blk_2);
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}
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DO_CALLBACK_PARAMS(events,
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"check_top_block",
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params_top_block(/* height = */ 22, top_block));
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return true;
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}
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bool alt_chain_and_block_tx_fee_median::check_after_hf4(
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currency::core& c,
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size_t ev_index,
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const std::vector<test_event_entry>& events)
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{
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block_extended_info bei{};
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const uint64_t height_block{22};
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CHECK_AND_ASSERT_EQ(
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m_hardforks.is_hardfork_active_for_height(ZANO_HARDFORK_04_ZARCANUM,
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height_block),
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true);
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c.get_blockchain_storage().get_block_extended_info_by_height(height_block,
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bei);
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CHECK_AND_ASSERT_EQ(bei.this_block_tx_fee_median, m_fee_tx_1_blk_2a);
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return true;
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}
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bool alt_chain_and_block_tx_fee_median::check_before_hf4(
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currency::core& c,
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size_t ev_index,
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const std::vector<test_event_entry>& events)
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{
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block_extended_info bei{};
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const uint64_t height_block{22};
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CHECK_AND_ASSERT_EQ(
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m_hardforks.is_hardfork_active_for_height(ZANO_HARDFORK_04_ZARCANUM,
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height_block),
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false);
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c.get_blockchain_storage().get_block_extended_info_by_height(height_block,
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bei);
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CHECK_AND_ASSERT_EQ(bei.this_block_tx_fee_median, m_fee_tx_0_blk_2);
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return true;
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}
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@ -82,3 +82,21 @@ struct chain_switching_when_out_spent_in_alt_chain_ref_id : public test_chain_un
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{
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bool generate(std::vector<test_event_entry>& events) const;
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};
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struct alt_chain_and_block_tx_fee_median : public test_chain_unit_enchanced
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{
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alt_chain_and_block_tx_fee_median();
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bool generate(std::vector<test_event_entry>& events) const;
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bool check_after_hf4(currency::core& c,
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size_t ev_index,
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const std::vector<test_event_entry>& events);
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bool check_before_hf4(currency::core& c,
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size_t ev_index,
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const std::vector<test_event_entry>& events);
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private:
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const uint64_t m_fee_tx_0_blk_2{TESTS_DEFAULT_FEE};
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const uint64_t m_fee_tx_1_blk_2a{2 * m_fee_tx_0_blk_2};
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};
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@ -1140,7 +1140,7 @@ int main(int argc, char* argv[])
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GENERATE_AND_PLAY_HF(alt_blocks_with_the_same_txs, "3-*");
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GENERATE_AND_PLAY_HF(chain_switching_when_out_spent_in_alt_chain_mixin, "3-*");
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GENERATE_AND_PLAY_HF(chain_switching_when_out_spent_in_alt_chain_ref_id, "3-*");
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GENERATE_AND_PLAY_HF(alt_chain_and_block_tx_fee_median, "3-*");
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// miscellaneous tests
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GENERATE_AND_PLAY(test_blockchain_vs_spent_keyimges);
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