Examples with ImportResult org.aion.zero.impl.core.ImportResult used on opensource projects

Example 36 with ImportResult

use of org.aion.zero.impl.core.ImportResult in project aion by aionnetwork.

the class BlockchainForkingTest method testForkWithRevertOnSmallContractStorage.

/**
 * Test the fork case when the block being replaced had contract storage changes that differ
 * from the previous block and are replaced by new changes in the updated block.
 *
 * <p>Ensures that the output of applying the block after the fork is the same as applying the
 * block first.
 */
@Test
public void testForkWithRevertOnSmallContractStorage() {
    // ****** setup ******
    // build a blockchain with CONCURRENT_THREADS_PER_TYPE blocks
    List<ECKey> accounts = generateAccounts(10);
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain sourceChain = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build().bc;
    StandaloneBlockchain testChain = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build().bc;
    assertThat(testChain).isNotEqualTo(sourceChain);
    assertThat(testChain.genesis).isEqualTo(sourceChain.genesis);
    long time = System.currentTimeMillis();
    // add a block with contract deploy
    ECKey sender = accounts.remove(0);
    AionTransaction deployTx = deployContract(sender);
    MiningBlock block = sourceChain.createNewMiningBlockInternal(sourceChain.genesis, Arrays.asList(deployTx), true, time / 10_000L).block;
    Pair<ImportResult, AionBlockSummary> connectResult = sourceChain.tryToConnectAndFetchSummary(block);
    AionTxReceipt receipt = connectResult.getRight().getReceipts().get(0);
    assertThat(receipt.isSuccessful()).isTrue();
    ImportResult result = connectResult.getLeft();
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    result = testChain.tryToConnect(block);
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    assertThat(testChain.getRepository().getRoot()).isEqualTo(sourceChain.getRepository().getRoot());
    AionAddress contract = TxUtil.calculateContractAddress(receipt.getTransaction());
    // add a block with transactions to both
    List<AionTransaction> txs = generateTransactions(20, accounts, sourceChain.getRepository());
    block = sourceChain.createNewMiningBlockInternal(sourceChain.getBestBlock(), txs, true, time / 10_000L).block;
    result = sourceChain.tryToConnect(block);
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    result = testChain.tryToConnect(block);
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    assertThat(testChain.getRepository().getRoot()).isEqualTo(sourceChain.getRepository().getRoot());
    // create a slow / fast block distinction
    AionTransaction callTx = callSetValue2(sender, contract, 5, 6, BigInteger.ONE);
    MiningBlock fastBlock = sourceChain.createNewMiningBlockInternal(sourceChain.getBestBlock(), Arrays.asList(callTx), true, time / 10_000L).block;
    callTx = callSetValue2(sender, contract, 1, 9, BigInteger.ONE);
    MiningBlock slowBlock = new MiningBlock(sourceChain.createNewMiningBlockInternal(sourceChain.getBestBlock(), Arrays.asList(callTx), true, time / 10_000L).block);
    MiningBlockHeader newBlockHeader = MiningBlockHeader.Builder.newInstance().withHeader(slowBlock.getHeader()).withTimestamp(time / 10_000L + 100).build();
    slowBlock.updateHeader(newBlockHeader);
    time += 100;
    // sourceChain imports only fast block
    assertThat(sourceChain.tryToConnect(fastBlock)).isEqualTo(ImportResult.IMPORTED_BEST);
    // testChain imports both blocks
    assertThat(testChain.tryToConnect(fastBlock)).isEqualTo(ImportResult.IMPORTED_BEST);
    assertThat(testChain.tryToConnect(slowBlock)).isEqualTo(ImportResult.IMPORTED_NOT_BEST);
    // build two blocks with different contract storage calls
    // the second block gets a higher total difficulty
    callTx = callSetValue(sender, contract, 5, BigInteger.TWO);
    MiningBlock lowBlock = testChain.createNewMiningBlockInternal(slowBlock, Arrays.asList(callTx), true, time / 10_000L + 101).block;
    callTx = callSetValue(sender, contract, 9, BigInteger.TWO);
    MiningBlock highBlock = sourceChain.createNewMiningBlockInternal(fastBlock, Arrays.asList(callTx), true, time / 10_000L).block;
    // System.out.println("***highBlock TD: " + highBlock.getDifficultyBI());
    // System.out.println("***lowBlock TD: " + lowBlock.getDifficultyBI());
    assertThat(highBlock.getDifficultyBI()).isGreaterThan(lowBlock.getDifficultyBI());
    // build first chain with highBlock applied directly
    connectResult = sourceChain.tryToConnectAndFetchSummary(highBlock);
    receipt = connectResult.getRight().getReceipts().get(0);
    assertThat(receipt.isSuccessful()).isTrue();
    result = connectResult.getLeft();
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    // collect the consensus information from the block & receipt
    AionBlockSummary blockSummary = connectResult.getRight();
    byte[] stateRoot = blockSummary.getBlock().getStateRoot();
    byte[] blockReceiptsRoot = blockSummary.getBlock().getReceiptsRoot();
    byte[] receiptTrieEncoded = receipt.getReceiptTrieEncoded();
    // ****** test fork behavior ******
    // first import lowBlock
    assertThat(testChain.tryToConnect(lowBlock)).isEqualTo(ImportResult.IMPORTED_BEST);
    // next import highBlock causing the fork
    connectResult = testChain.tryToConnectAndFetchSummary(highBlock);
    receipt = connectResult.getRight().getReceipts().get(0);
    assertThat(receipt.isSuccessful()).isTrue();
    System.out.println(receipt);
    result = connectResult.getLeft();
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    // collect the consensus information from the block & receipt
    blockSummary = connectResult.getRight();
    assertThat(testChain.getBestBlock()).isEqualTo(sourceChain.getBestBlock());
    assertThat(blockSummary.getBlock().getStateRoot()).isEqualTo(stateRoot);
    assertThat(blockSummary.getBlock().getReceiptsRoot()).isEqualTo(blockReceiptsRoot);
    assertThat(receipt.getReceiptTrieEncoded()).isEqualTo(receiptTrieEncoded);
}

Example 37 with ImportResult

use of org.aion.zero.impl.core.ImportResult in project aion by aionnetwork.

the class BlockchainForkingTest method testSameBlockDifferentNonceAndSolutionSimple.

/*-
     * Tests the case where multiple threads submit a single block (content) but
     * with different mining nonces and solutions. In this case our rules dictate
     * that all subsequent blocks are considered invalid.
     *
     *          (common ancestor)
     *          /               \
     *         /                 \
     *        /                   \
     *       (a)o                 (b)x
     *
     * Given:
     * a.td == b.td
     */
@Test
public void testSameBlockDifferentNonceAndSolutionSimple() {
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle b = builder.withValidatorConfiguration("simple").build();
    StandaloneBlockchain bc = b.bc;
    MiningBlock block = bc.createNewMiningBlock(bc.getBestBlock(), Collections.emptyList(), true);
    MiningBlock sameBlock = (MiningBlock) BlockUtil.newBlockFromRlp(block.getEncoded());
    ImportResult firstRes = bc.tryToConnect(block);
    // check that the returned block is the first block
    assertThat(bc.getBestBlock() == block).isTrue();
    assertThat(firstRes).isEqualTo(ImportResult.IMPORTED_BEST);
    // check that the correct caching context was used
    Pair<Long, BlockCachingContext> cacheContext = bc.getAvmCachingContext();
    assertThat(cacheContext.getLeft()).isEqualTo(block.getNumber() - 1);
    assertThat(cacheContext.getRight()).isEqualTo(BlockCachingContext.MAINCHAIN);
    ImportResult secondRes = bc.tryToConnect(sameBlock);
    // the second block should get rejected, so check that the reference still refers
    // to the first block (we dont change the published reference)
    assertThat(bc.getBestBlock() == block).isTrue();
    assertThat(secondRes).isEqualTo(ImportResult.EXIST);
    // the caching context does not change for already known blocks
    cacheContext = bc.getAvmCachingContext();
    assertThat(cacheContext.getLeft()).isEqualTo(block.getNumber() - 1);
    assertThat(cacheContext.getRight()).isEqualTo(BlockCachingContext.MAINCHAIN);
}

Example 38 with ImportResult

use of org.aion.zero.impl.core.ImportResult in project aion by aionnetwork.

the class BlockchainForkingTest method testVmTypeRetrieval_ForkWithConflictingContractVM.

/**
 * Ensures that if a side-chain block is imported after a main-chain block creating the same
 * contract address X but using different VMs, then each chain will operate on the correct VM.
 */
@Test
public void testVmTypeRetrieval_ForkWithConflictingContractVM() throws Exception {
    TestResourceProvider resourceProvider = TestResourceProvider.initializeAndCreateNewProvider(AvmPathManager.getPathOfProjectRootDirectory());
    IAvmResourceFactory resourceFactory = resourceProvider.factoryForVersion1;
    // blocks to be built
    MiningBlock block, fastBlock, slowBlock, lowBlock, highBlock;
    // transactions used in blocks
    AionTransaction deployOnAVM, deployOnFVM, callTxOnFVM;
    // for processing block results
    Pair<ImportResult, AionBlockSummary> connectResult;
    ImportResult result;
    AionTxReceipt receipt;
    // build a blockchain
    TransactionTypeRule.allowAVMContractTransaction();
    List<ECKey> accounts = generateAccounts(10);
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain sourceChain = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build().bc;
    StandaloneBlockchain testChain = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build().bc;
    ECKey sender = accounts.remove(0);
    assertThat(testChain).isNotEqualTo(sourceChain);
    assertThat(testChain.genesis).isEqualTo(sourceChain.genesis);
    long time = System.currentTimeMillis();
    // add a block to both chains
    block = sourceChain.createNewMiningBlockInternal(sourceChain.getBestBlock(), Collections.emptyList(), true, time / 10_000L).block;
    assertThat(sourceChain.tryToConnect(block)).isEqualTo(ImportResult.IMPORTED_BEST);
    assertThat(testChain.tryToConnect(block)).isEqualTo(ImportResult.IMPORTED_BEST);
    // ****** setup side chain ******
    // deploy contracts on different VMs for the two chains
    deployOnAVM = deployStatefulnessAVMContract(resourceFactory, sender);
    fastBlock = sourceChain.createNewMiningBlockInternal(sourceChain.getBestBlock(), Arrays.asList(deployOnAVM), true, time / 10_000L).block;
    deployOnFVM = deployContract(sender);
    slowBlock = new MiningBlock(sourceChain.createNewMiningBlockInternal(sourceChain.getBestBlock(), Arrays.asList(deployOnFVM), true, time / 10_000L).block);
    MiningBlockHeader newBlockHeader = MiningBlockHeader.Builder.newInstance().withHeader(slowBlock.getHeader()).withTimestamp(time / 10_000L + 100).build();
    slowBlock.updateHeader(newBlockHeader);
    time += 100;
    // sourceChain imports only fast block
    connectResult = sourceChain.tryToConnectAndFetchSummary(fastBlock);
    result = connectResult.getLeft();
    receipt = connectResult.getRight().getReceipts().get(0);
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    assertThat(receipt.isSuccessful()).isTrue();
    AionAddress contract = TxUtil.calculateContractAddress(receipt.getTransaction());
    // testChain imports both blocks
    connectResult = testChain.tryToConnectAndFetchSummary(fastBlock);
    result = connectResult.getLeft();
    receipt = connectResult.getRight().getReceipts().get(0);
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    assertThat(receipt.isSuccessful()).isTrue();
    assertThat(TxUtil.calculateContractAddress(receipt.getTransaction())).isEqualTo(contract);
    connectResult = testChain.tryToConnectAndFetchSummary(slowBlock);
    result = connectResult.getLeft();
    receipt = connectResult.getRight().getReceipts().get(0);
    assertThat(result).isEqualTo(ImportResult.IMPORTED_NOT_BEST);
    assertThat(receipt.isSuccessful()).isTrue();
    assertThat(TxUtil.calculateContractAddress(receipt.getTransaction())).isEqualTo(contract);
    // ****** check that the correct contract details are kept ******
    // check that both chains have the correct vm type for the AVM contract
    byte[] codeHashAVM = sourceChain.getRepository().getAccountState(contract).getCodeHash();
    assertThat(testChain.getRepository().getVMUsed(contract, codeHashAVM)).isEqualTo(sourceChain.getRepository().getVMUsed(contract, codeHashAVM));
    // check that only the second chain has the vm type for the FVM contract
    byte[] codeHashFVM = ((AionRepositoryImpl) testChain.getRepository().getSnapshotTo(slowBlock.getStateRoot())).getAccountState(contract).getCodeHash();
    assertThat(sourceChain.getRepository().getVMUsed(contract, codeHashFVM)).isEqualTo(InternalVmType.UNKNOWN);
    assertThat(testChain.getRepository().getVMUsed(contract, codeHashFVM)).isEqualTo(InternalVmType.FVM);
    // check the stored information details
    ContractInformation infoSingleImport = sourceChain.getRepository().getIndexedContractInformation(contract);
    System.out.println("without side chain:" + infoSingleImport);
    assertThat(infoSingleImport.getVmUsed(codeHashAVM)).isEqualTo(InternalVmType.AVM);
    assertThat(infoSingleImport.getInceptionBlocks(codeHashAVM)).isEqualTo(Set.of(fastBlock.getHashWrapper()));
    assertThat(infoSingleImport.getVmUsed(codeHashFVM)).isEqualTo(InternalVmType.UNKNOWN);
    assertThat(infoSingleImport.getInceptionBlocks(codeHashFVM)).isEmpty();
    ContractInformation infoMultiImport = testChain.getRepository().getIndexedContractInformation(contract);
    System.out.println("with side chain:" + infoMultiImport);
    assertThat(infoMultiImport.getVmUsed(codeHashAVM)).isEqualTo(InternalVmType.AVM);
    assertThat(infoMultiImport.getInceptionBlocks(codeHashAVM)).isEqualTo(Set.of(fastBlock.getHashWrapper()));
    assertThat(infoMultiImport.getVmUsed(codeHashFVM)).isEqualTo(InternalVmType.FVM);
    assertThat(infoMultiImport.getInceptionBlocks(codeHashFVM)).isEqualTo(Set.of(slowBlock.getHashWrapper()));
    // build two blocks where the second block has a higher total difficulty
    callTxOnFVM = callSetValue(sender, contract, 9, BigInteger.ONE);
    lowBlock = testChain.createNewMiningBlockInternal(slowBlock, Arrays.asList(callTxOnFVM), true, time / 10_000L + 101).block;
    int expectedCount = 3;
    List<AionTransaction> callTxOnAVM = callStatefulnessAVM(resourceFactory, sender, expectedCount, BigInteger.ONE, contract);
    highBlock = sourceChain.createNewMiningBlockInternal(fastBlock, callTxOnAVM, true, time / 10_000L).block;
    assertThat(highBlock.getDifficultyBI()).isGreaterThan(lowBlock.getDifficultyBI());
    // build first chain with highBlock applied directly
    connectResult = sourceChain.tryToConnectAndFetchSummary(highBlock);
    // get last tx
    receipt = connectResult.getRight().getReceipts().get(expectedCount);
    assertThat(receipt.isSuccessful()).isTrue();
    result = connectResult.getLeft();
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    // collect the consensus information from the block & receipt
    AionBlockSummary blockSummary = connectResult.getRight();
    byte[] stateRoot = blockSummary.getBlock().getStateRoot();
    byte[] blockReceiptsRoot = blockSummary.getBlock().getReceiptsRoot();
    byte[] receiptTrieEncoded = receipt.getReceiptTrieEncoded();
    int returnedCount = resourceFactory.newDecoder(blockSummary.getReceipts().get(expectedCount).getTransactionOutput()).decodeOneInteger();
    assertThat(returnedCount).isEqualTo(expectedCount);
    // ****** test fork behavior ******
    // first import lowBlock
    assertThat(testChain.tryToConnect(lowBlock)).isEqualTo(ImportResult.IMPORTED_BEST);
    // next import highBlock causing the fork
    connectResult = testChain.tryToConnectAndFetchSummary(highBlock);
    receipt = connectResult.getRight().getReceipts().get(expectedCount);
    assertThat(receipt.isSuccessful()).isTrue();
    System.out.println(receipt);
    result = connectResult.getLeft();
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    // collect the consensus information from the block & receipt
    blockSummary = connectResult.getRight();
    assertThat(testChain.getBestBlock()).isEqualTo(sourceChain.getBestBlock());
    assertThat(blockSummary.getBlock().getStateRoot()).isEqualTo(stateRoot);
    assertThat(blockSummary.getBlock().getReceiptsRoot()).isEqualTo(blockReceiptsRoot);
    assertThat(receipt.getReceiptTrieEncoded()).isEqualTo(receiptTrieEncoded);
    returnedCount = resourceFactory.newDecoder(blockSummary.getReceipts().get(expectedCount).getTransactionOutput()).decodeOneInteger();
    assertThat(returnedCount).isEqualTo(expectedCount);
}

Example 39 with ImportResult

use of org.aion.zero.impl.core.ImportResult in project aion by aionnetwork.

the class BlockchainConcurrentImportTest method generateBlocks.

private static void generateBlocks() {
    System.out.format("%nGenerating %d input blocks...%n", CONCURRENT_THREADS_PER_TYPE);
    Random rand = new Random();
    MiningBlock parent, block, mainChain;
    mainChain = sourceChain.getGenesis();
    knownBlocks.add(mainChain);
    List<AionTransaction> txs;
    AionRepositoryImpl sourceRepo = sourceChain.getRepository();
    long time = System.currentTimeMillis();
    for (int i = 0; i < CONCURRENT_THREADS_PER_TYPE; i++) {
        // ensuring that we add to the main chain at least every MAIN_CHAIN_FREQUENCY block
        if (i % MAIN_CHAIN_FREQUENCY == 0) {
            // the parent will be the main chain
            parent = mainChain;
        } else {
            // the parent is a random already imported block
            parent = knownBlocks.get(rand.nextInt(knownBlocks.size()));
        }
        // generate transactions for correct root
        byte[] originalRoot = sourceRepo.getRoot();
        sourceRepo.syncToRoot(parent.getStateRoot());
        txs = generateTransactions(MAX_TX_PER_BLOCK, accounts, sourceRepo);
        sourceRepo.syncToRoot(originalRoot);
        block = sourceChain.createNewMiningBlockInternal(parent, txs, true, time / 10000L).block;
        MiningBlockHeader newBlockHeader = MiningBlockHeader.Builder.newInstance().withHeader(block.getHeader()).withExtraData(String.valueOf(i).getBytes()).build();
        block.updateHeader(newBlockHeader);
        ImportResult result = sourceChain.tryToConnect(block);
        knownBlocks.add(block);
        if (result == ImportResult.IMPORTED_BEST) {
            mainChain = block;
        }
        if (DISPLAY_MESSAGES) {
            System.out.format("Created block with hash: %s, number: %6d, extra data: %6s, txs: %3d, import status: %20s %n", block.getShortHash(), block.getNumber(), new String(block.getExtraData()), block.getTransactionsList().size(), result.toString());
        }
    }
    // all blocks except the genesis will be imported by the other chain
    knownBlocks.remove(sourceChain.getGenesis());
}

Example 40 with ImportResult

use of org.aion.zero.impl.core.ImportResult in project aion by aionnetwork.

the class BlockchainConcurrentImportTest method addThread_tryToConnect.

/**
 * Adds a new thread for importing an already known block.
 *
 * @param _threads list of threads to be executed; the current thread will be added to this list
 * @param _chain the blockchain where the blocks will be imported
 * @param _block the block to import
 */
private void addThread_tryToConnect(List<Runnable> _threads, StandaloneBlockchain _chain, MiningBlock _block) {
    _threads.add(() -> {
        testChain.assertEqualTotalDifficulty();
        // importing the given block
        ImportResult result = _chain.tryToConnect(_block);
        testChain.assertEqualTotalDifficulty();
        if (DISPLAY_MESSAGES) {
            System.out.format("Import block with hash: %s, number: %6d, extra data: %6s, txs: %3d, status: %20s in thread: %20s %n", _block.getShortHash(), _block.getNumber(), new String(_block.getExtraData()), _block.getTransactionsList().size(), result.toString(), Thread.currentThread().getName());
        }
        // checking total difficulty
        if (result == ImportResult.IMPORTED_BEST || result == ImportResult.IMPORTED_NOT_BEST) {
            AionBlockStore store = _chain.getRepository().getBlockStore();
            BigInteger tdFromStore = _chain.getTotalDifficultyForHash(_block.getHash());
            BigInteger tdCalculated = _chain.getTotalDifficultyForHash(_block.getParentHash()).add(_block.getDifficultyBI());
            assertThat(tdFromStore).isEqualTo(tdCalculated);
            assertThat(tdCalculated).isEqualTo(_chain.getTotalDifficultyForHash(_block.getHash()));
            if (result == ImportResult.IMPORTED_BEST) {
                // can't check for equality since other blocks may have already been
                // imported
                Block bestBlock = store.getBestBlock();
                assertNotNull(bestBlock);
                assertThat(bestBlock.getTotalDifficulty()).isAtLeast(tdFromStore);
            }
        }
    });
}