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

Example 11 with MiningBlockHeader

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

the class BlockchainTestUtils method generateNextBlock.

/**
 * @param chain blockchain implementation to be populated
 * @param accounts existing accounts
 * @param txCount maximum number of transactions per block
 */
public static Block generateNextBlock(StandaloneBlockchain chain, List<ECKey> accounts, int txCount) {
    Block block, parent = chain.getBestBlock();
    AionRepositoryImpl repo = chain.getRepository();
    List<AionTransaction> txs = generateTransactions(txCount, accounts, repo);
    long time = System.currentTimeMillis();
    block = chain.createNewMiningBlockInternal(parent, txs, true, time / TEN_THOUSAND_MS).block;
    MiningBlockHeader newBlockHeader = MiningBlockHeader.Builder.newInstance().withHeader((MiningBlockHeader) block.getHeader()).withExtraData(String.valueOf(time).getBytes()).build();
    block.updateHeader(newBlockHeader);
    return block;
}

Example 12 with MiningBlockHeader

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

the class BlockchainIntegrationTest method testDisconnection.

/**
 * This is a special case for testing that the blockchain stores disconnected blocks if we
 * violate the contract of changing the block contents after importing best
 *
 * <p>This behaviour was originally observed when running a pooled miner
 */
@Test
public void testDisconnection() {
    StandaloneBlockchain.Bundle bundle = (new StandaloneBlockchain.Builder()).withValidatorConfiguration("simple").withDefaultAccounts().build();
    StandaloneBlockchain bc = bundle.bc;
    // store this as the best block,
    MiningBlock block = bundle.bc.createNewMiningBlock(bc.getGenesis(), Collections.emptyList(), true);
    byte[] block1Hash = block.getHash();
    // now modify this block to have a different value after connecting
    ImportResult result = bundle.bc.tryToConnect(block);
    assertThat(result).isEqualTo(ImportResult.IMPORTED_BEST);
    // now modify the block in some way
    MiningBlockHeader newBlockHeader = MiningBlockHeader.Builder.newInstance().withHeader(block.getHeader()).withExtraData("other block".getBytes()).build();
    block.updateHeader(newBlockHeader);
    // now try submitting the block again
    result = bundle.bc.tryToConnect(block);
    assertThat(result).isEqualTo(ImportResult.IMPORTED_NOT_BEST);
    // now try creating a new block
    MiningBlock newBlock = bundle.bc.createNewMiningBlock(bundle.bc.getBestBlock(), Collections.emptyList(), true);
    // gets the first main-chain block
    Block storedBlock1 = bundle.bc.getBlockByNumber(1L);
    System.out.println(ByteUtil.toHexString(storedBlock1.getHash()));
    System.out.println(ByteUtil.toHexString(newBlock.getParentHash()));
    assertThat(newBlock.getParentHash()).isNotEqualTo(storedBlock1.getHash());
    assertThat(newBlock.getParentHash()).isEqualTo(block.getHash());
}

Example 13 with MiningBlockHeader

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

the class PendingBlockStoreTest method testDropPendingQueues_wException.

@Test
public void testDropPendingQueues_wException() {
    Properties props = new Properties();
    props.setProperty(Props.DB_TYPE, DBVendor.MOCKDB.toValue());
    PendingBlockStore pb = null;
    try {
        pb = new PendingBlockStore(props);
    } catch (IOException e) {
        e.printStackTrace();
    }
    assertThat(pb.isOpen()).isTrue();
    // add first queue
    List<Block> blocks = TestResources.consecutiveBlocks(6);
    Block first = blocks.get(0);
    pb.addBlockRange(blocks);
    // add second queue
    MiningBlock altBlock = (MiningBlock) BlockUtil.newBlockFromRlp(first.getEncoded());
    MiningBlockHeader newHeader = MiningBlockHeader.Builder.newInstance().withHeader(altBlock.getHeader()).withExtraData("random".getBytes()).build();
    altBlock.updateHeader(newHeader);
    List<Block> sideChain = new ArrayList<>();
    sideChain.add(altBlock);
    pb.addBlockRange(sideChain);
    // check storage updates
    assertThat(pb.getIndexSize()).isEqualTo(7);
    assertThat(pb.getLevelSize()).isEqualTo(1);
    assertThat(pb.getQueueSize()).isEqualTo(2);
    // closing the pending block store to cause exception
    pb.close();
    // test drop functionality
    Map<ByteArrayWrapper, List<Block>> actual = pb.loadBlockRange(first.getNumber());
    pb.dropPendingQueues(first.getNumber(), actual.keySet(), actual);
}

Example 14 with MiningBlockHeader

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

the class SyncMgrTest method testValidateAndAddHeaders_withInvalidHeader.

@Test
public void testValidateAndAddHeaders_withInvalidHeader() {
    int nodeId = 1;
    String displayId = "peer1";
    List<BlockHeader> sequentialHeaders = new ArrayList<>();
    sequentialHeaders.add(consecutiveHeaders.get(0));
    sequentialHeaders.add(consecutiveHeaders.get(1));
    // Break energy consumed rule.
    List<BlockHeader> invalidHeaderList = new ArrayList<>(sequentialHeaders);
    assertThat(consecutiveHeaders.get(2).getEnergyConsumed()).isGreaterThan(0L);
    invalidHeaderList.add(MiningBlockHeader.Builder.newInstance().withHeader((MiningBlockHeader) consecutiveHeaders.get(2)).withEnergyConsumed(0L).build());
    syncMgr.validateAndAddHeaders(nodeId, displayId, invalidHeaderList);
    verify(p2pMgr, never()).errCheck(nodeId, displayId);
    // Check that the sequential subset of headers was stored.
    assertThat(syncMgr.syncHeaderRequestManager.matchAndDropHeaders(nodeId, invalidHeaderList.size(), invalidHeaderList.get(0).getTxTrieRootWrapper())).isNull();
    List<BlockHeader> stored = syncMgr.syncHeaderRequestManager.matchAndDropHeaders(nodeId, sequentialHeaders.size(), sequentialHeaders.get(0).getTxTrieRootWrapper());
    assertThat(stored.size()).isEqualTo(sequentialHeaders.size());
    assertThat(stored).containsAllIn(sequentialHeaders);
}

Example 15 with MiningBlockHeader

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

the class PendingBlockStoreTest method testLoadBlockRange.

@Test
public void testLoadBlockRange() {
    Properties props = new Properties();
    props.setProperty(Props.DB_TYPE, DBVendor.MOCKDB.toValue());
    PendingBlockStore pb = null;
    try {
        pb = new PendingBlockStore(props);
    } catch (IOException e) {
        e.printStackTrace();
    }
    assertThat(pb.isOpen()).isTrue();
    List<Block> allBlocks = TestResources.consecutiveBlocks(8);
    // 1. test with empty storage
    assertThat(pb.loadBlockRange(100)).isEmpty();
    // 2. test with valid range
    List<Block> blocks = allBlocks.subList(0, 6);
    Block first = blocks.get(0);
    assertThat(blocks.size()).isEqualTo(6);
    assertThat(pb.addBlockRange(blocks)).isEqualTo(6);
    Map<ByteArrayWrapper, List<Block>> actual = pb.loadBlockRange(first.getNumber());
    assertThat(actual.size()).isEqualTo(1);
    assertThat(actual.get(ByteArrayWrapper.wrap(first.getHash()))).isEqualTo(blocks);
    // 3. test with multiple queues
    // create side chain
    MiningBlock altBlock = (MiningBlock) BlockUtil.newBlockFromRlp(first.getEncoded());
    MiningBlockHeader newHeader = MiningBlockHeader.Builder.newInstance().withHeader(altBlock.getHeader()).withExtraData("random".getBytes()).build();
    altBlock.updateHeader(newHeader);
    assertThat(altBlock.equals(first)).isFalse();
    List<Block> sideChain = new ArrayList<>();
    sideChain.add(altBlock);
    assertThat(pb.addBlockRange(sideChain)).isEqualTo(1);
    // check functionality
    actual = pb.loadBlockRange(first.getNumber());
    assertThat(actual.size()).isEqualTo(2);
    assertThat(actual.get(ByteArrayWrapper.wrap(first.getHash()))).isEqualTo(blocks);
    assertThat(actual.get(ByteArrayWrapper.wrap(altBlock.getHash()))).isEqualTo(sideChain);
    // 4. test with empty level
    long level = first.getNumber();
    assertThat(pb.loadBlockRange(level - 1)).isEmpty();
    assertThat(pb.loadBlockRange(level + 1)).isEmpty();
}