Examples with MiningBlock org.aion.zero.impl.types.MiningBlock used on opensource projects

Example 71 with MiningBlock

use of org.aion.zero.impl.types.MiningBlock in project aion by aionnetwork.

the class BlockchainRewardTest method testBlockchainRewardMonotonicallyIncreasing.

/**
 * Test that blocks between the lower and upper bounds follow a certain function [0, 259200]
 *
 * <p>Note: this test is resource consuming!
 *
 * <p>Check {@link org.aion.zero.impl.core.RewardsCalculator} for algorithm related to the
 * ramp-up block time
 */
@Ignore
@Test
public void testBlockchainRewardMonotonicallyIncreasing() {
    StandaloneBlockchain.Bundle bundle = new StandaloneBlockchain.Builder().withDefaultAccounts().withValidatorConfiguration("simple").build();
    StandaloneBlockchain bc = bundle.bc;
    MiningBlock block = bc.createNewMiningBlock(bc.getBestBlock(), Collections.EMPTY_LIST, true);
    ImportResult res = bc.tryToConnect(block);
    assertThat(res).isEqualTo(ImportResult.IMPORTED_BEST);
    AionAddress coinbase = block.getCoinbase();
    BigInteger previousBalance = bc.getRepository().getBalance(coinbase);
    // first block already sealed
    for (int i = 2; i < 99999; i++) {
        MiningBlock b = bc.createNewMiningBlock(bc.getBestBlock(), Collections.EMPTY_LIST, true);
        ImportResult r = bc.tryToConnect(b);
        assertThat(r).isEqualTo(ImportResult.IMPORTED_BEST);
        // note the assumption here that blocks are mined by one coinbase
        BigInteger balance = bc.getRepository().getBalance(coinbase);
        assertThat(balance).isGreaterThan(previousBalance);
        previousBalance = balance;
        if (b.getNumber() % 1000 == 0)
            System.out.println("added block #: " + i);
    }
}

Example 72 with MiningBlock

use of org.aion.zero.impl.types.MiningBlock in project aion by aionnetwork.

the class BlockchainAccountStateBenchmark method testExpandOneAccountStorage.

@Ignore
@Test
public void testExpandOneAccountStorage() throws InterruptedException {
    try {
        StandaloneBlockchain.Bundle bundle = this.bundle;
        StandaloneBlockchain bc = bundle.bc;
        ECKey senderKey = bundle.privateKeys.get(0);
        // deploy contract
        Pair<MiningBlock, byte[]> res = createContract(bc, senderKey, bc.getGenesis());
        bc.tryToConnect(res.getLeft());
        AionTxInfo info = bc.getTransactionInfo(res.getRight());
        assertThat(info.getReceipt().isValid()).isTrue();
        AionTransaction tx = info.getReceipt().getTransaction();
        AionAddress contractAddress = TxUtil.calculateContractAddress(tx);
        byte[] contractCode = bc.getRepository().getCode(contractAddress);
        System.out.println("deployed contract code: " + ByteUtil.toHexString(contractCode));
        System.out.println("deployed at: " + contractAddress);
        for (int i = 0; i < 100; i++) createContractBundle(bc, senderKey, bc.getBestBlock(), contractAddress);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        bundle.bc.getRepository().close();
        Thread.sleep(1000L);
    }
}

Example 73 with MiningBlock

use of org.aion.zero.impl.types.MiningBlock in project aion by aionnetwork.

the class BlockchainConcurrencyTest method testPublishBestBlockSafely.

@Test
public void testPublishBestBlockSafely() {
    ExecutorService blockCreationService = Executors.newSingleThreadExecutor();
    ExecutorService getBlockService = Executors.newSingleThreadExecutor();
    StandaloneBlockchain.Bundle bundle = new StandaloneBlockchain.Builder().withDefaultAccounts().withValidatorConfiguration("simple").build();
    StandaloneBlockchain bc = bundle.bc;
    final int MAX_COUNT = 100000;
    final CountDownLatch endLatch = new CountDownLatch(2);
    // this will not definitively prove
    try {
        blockCreationService.submit(() -> {
            int count = 0;
            List<AionTransaction> txList = Collections.emptyList();
            MiningBlock block = null;
            try {
                block = bc.createNewMiningBlock(bc.genesis, Collections.emptyList(), false);
            } catch (Exception e) {
                e.printStackTrace();
            }
            while (!Thread.currentThread().isInterrupted() && count < MAX_COUNT) {
                try {
                    block = bc.createNewMiningBlock(block, txList, false);
                } catch (Exception e) {
                    e.printStackTrace();
                }
                count++;
            }
            System.out.println("completed block creation");
            endLatch.countDown();
        });
        getBlockService.submit(() -> {
            int count = 0;
            long prevNumber = bc.getBestBlock().getNumber();
            while (!Thread.currentThread().isInterrupted() && count < MAX_COUNT) {
                // all three of these methods use {@link
                // AionBlockchainImpl#pubBestBlock}
                assertThat(bc.getBestBlockHash()).isNotNull();
                bc.getSize();
                Block block = bc.getBestBlock();
                assertThat(block).isNotNull();
                assertThat(block.getNumber()).isAtLeast(prevNumber);
                prevNumber = block.getNumber();
                count++;
            }
            endLatch.countDown();
        });
    } finally {
        blockCreationService.shutdown();
        getBlockService.shutdown();
    }
}

Example 74 with MiningBlock

use of org.aion.zero.impl.types.MiningBlock in project aion by aionnetwork.

the class BlockchainDataRecoveryTest method testRecoverIndex_wDeletedBlock.

@Test
public void testRecoverIndex_wDeletedBlock() {
    // build a blockchain with a few blocks
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    StandaloneBlockchain chain = bundle.bc;
    AionRepositoryImpl repo = chain.getRepository();
    BlockContext context;
    List<AionTransaction> txs;
    // all blocks will be incorrect
    long time = System.currentTimeMillis();
    Map<Long, byte[]> blocksToDelete = new HashMap<>();
    List<MiningBlock> blocksToImport = new ArrayList<>();
    for (int i = 0; i < NUMBER_OF_BLOCKS; i++) {
        txs = BlockchainTestUtils.generateTransactions(MAX_TX_PER_BLOCK, accounts, repo);
        context = chain.createNewMiningBlockInternal(chain.getBestBlock(), txs, true, time / 10000L);
        assertThat(chain.tryToConnect(context.block)).isEqualTo(ImportResult.IMPORTED_BEST);
        blocksToDelete.put(context.block.getNumber(), context.block.getHash());
        // skipping middle block
        if (context.block.getNumber() != NUMBER_OF_BLOCKS / 2) {
            blocksToImport.add(context.block);
        }
    }
    Block bestBlock = chain.getBestBlock();
    assertThat(bestBlock.getNumber()).isEqualTo(NUMBER_OF_BLOCKS);
    // delete middle block from db
    Block middle = chain.getBlockByNumber(NUMBER_OF_BLOCKS / 2);
    MockDB database = (MockDB) repo.getBlockDatabase();
    database.deleteAndCommit(middle.getHash());
    // delete index entries from the database
    MockDB indexDatabase = (MockDB) repo.getIndexDatabase();
    // 1: direct recovery call
    repo.flush();
    Map<Long, byte[]> deletedInfo = new HashMap<>();
    for (Map.Entry<Long, byte[]> entry : blocksToDelete.entrySet()) {
        byte[] indexKey = ByteUtil.intToBytes(entry.getKey().intValue());
        // saving the data for checking recovery
        deletedInfo.put(entry.getKey(), indexDatabase.get(indexKey).get());
        // deleting the block info
        indexDatabase.deleteAndCommit(indexKey);
        // ensure that the index was corrupted
        assertThat(repo.isIndexed(entry.getValue(), entry.getKey())).isFalse();
    }
    // ensure that the index was corrupted
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isFalse();
    // call the recovery functionality
    assertThat(chain.recoverIndexEntry(repo, bestBlock)).isFalse();
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the index was recovered
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isFalse();
    // 2: recovery at import
    repo.flush();
    for (Map.Entry<Long, byte[]> entry : blocksToDelete.entrySet()) {
        byte[] indexKey = ByteUtil.intToBytes(entry.getKey().intValue());
        // deleting the block info
        indexDatabase.deleteAndCommit(indexKey);
        // ensure that the index was corrupted
        assertThat(repo.isIndexed(entry.getValue(), entry.getKey())).isFalse();
    }
    // ensure that the index was corrupted
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isFalse();
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // index missing before import
        assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isFalse();
        assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
        if (block.getNumber() < middle.getNumber()) {
            // index present after import
            assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isTrue();
        } else {
            // blocks after missing one cannot be recovered
            assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isFalse();
        }
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the index was recovered
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isFalse();
    // importing middle block
    assertThat(chain.tryToConnect(middle)).isEqualTo(ImportResult.IMPORTED_NOT_BEST);
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // checking only failed blocks from before
        if (block.getNumber() > middle.getNumber()) {
            // index missing before import
            assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isFalse();
            assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
            // index present after import
            assertThat(repo.isIndexed(block.getHash(), block.getNumber())).isTrue();
        }
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the index was recovered
    assertThat(repo.isIndexed(bestBlock.getHash(), bestBlock.getNumber())).isTrue();
    // check that the index information is correct at database level
    for (Long key : blocksToDelete.keySet()) {
        // checking at database level
        byte[] indexKey = ByteUtil.intToBytes(key.intValue());
        assertThat(deletedInfo.get(key)).isEqualTo(indexDatabase.get(indexKey).get());
    }
}

Example 75 with MiningBlock

use of org.aion.zero.impl.types.MiningBlock in project aion by aionnetwork.

the class BlockchainDataRecoveryTest method testRecoverWorldStateWithStartFromGenesis.

/**
 * Test the recovery of the world state with start from the state of the genesis block.
 */
@Test
public void testRecoverWorldStateWithStartFromGenesis() {
    // build a blockchain with a few blocks
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    StandaloneBlockchain chain = bundle.bc;
    AionRepositoryImpl repo = chain.getRepository();
    BlockContext context;
    List<AionTransaction> txs;
    // all blocks will be incorrect
    long time = System.currentTimeMillis();
    List<byte[]> statesToDelete = new ArrayList<>();
    List<MiningBlock> blocksToImport = new ArrayList<>();
    for (int i = 0; i < NUMBER_OF_BLOCKS; i++) {
        txs = BlockchainTestUtils.generateTransactions(MAX_TX_PER_BLOCK, accounts, repo);
        context = chain.createNewMiningBlockInternal(chain.getBestBlock(), txs, true, time / 10000L);
        assertThat(chain.tryToConnect(context.block)).isEqualTo(ImportResult.IMPORTED_BEST);
        statesToDelete.add(context.block.getStateRoot());
        blocksToImport.add(context.block);
    }
    Block bestBlock = chain.getBestBlock();
    assertThat(bestBlock.getNumber()).isEqualTo(NUMBER_OF_BLOCKS);
    // delete some world state root entries from the database
    TrieImpl trie = (TrieImpl) repo.getWorldState();
    MockDB database = (MockDB) repo.getStateDatabase();
    // 1: direct recovery call
    repo.flush();
    for (byte[] key : statesToDelete) {
        database.deleteAndCommit(key);
        assertThat(trie.isValidRoot(key)).isFalse();
    }
    // ensure that the world state was corrupted
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // call the recovery functionality
    boolean worked = chain.recoverWorldState(repo, bestBlock);
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state is ok
    assertThat(worked).isTrue();
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isTrue();
    // 2: recovery at import
    repo.flush();
    for (byte[] key : statesToDelete) {
        database.deleteAndCommit(key);
        assertThat(trie.isValidRoot(key)).isFalse();
    }
    // ensure that the world state was corrupted
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isFalse();
    // call the recovery functionality indirectly
    for (MiningBlock block : blocksToImport) {
        // state missing before import
        assertThat(trie.isValidRoot(block.getStateRoot())).isFalse();
        assertThat(chain.tryToConnect(block)).isEqualTo(ImportResult.EXIST);
        // state present after import
        assertThat(trie.isValidRoot(block.getStateRoot())).isTrue();
    }
    // ensure that the blockchain is ok
    assertThat(chain.getBestBlockHash()).isEqualTo(bestBlock.getHash());
    // ensure that the world state is ok
    assertThat(trie.isValidRoot(chain.getBestBlock().getStateRoot())).isTrue();
}