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

Example 61 with Block

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

the class StandaloneBlockchainTest method testBlockChainShutdownhook.

@Test
public void testBlockChainShutdownhook() {
    exit.expectSystemExitWithStatus(SystemExitCodes.NORMAL);
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts().build();
    StandaloneBlockchain sb = bundle.bc;
    AionBlockchainImpl.shutdownHook = 2;
    Block block1 = sb.createBlock(sb.genesis, Collections.EMPTY_LIST, false, TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis()));
    ImportResult result = sb.tryToConnect(block1);
    assertThat(result.isBest()).isTrue();
    Block block2 = sb.createBlock(block1, Collections.EMPTY_LIST, false, TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis()));
    // expect the system will be shutdown when import the block2
    sb.tryToConnect(new BlockWrapper(block2));
}

Example 62 with Block

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

the class BlockchainImplementationTest method testGetListOfHeadersEndWith_wBestBlock.

@Test
public void testGetListOfHeadersEndWith_wBestBlock() {
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    StandaloneBlockchain chain = bundle.bc;
    // populate chain at random
    generateRandomChain(chain, 12, 2, accounts, MAX_TX_PER_BLOCK);
    Block best = chain.getBestBlock();
    assertThat(best.getNumber()).isGreaterThan(0L);
    byte[] bestHash = best.getHash();
    // expected result with qty >= chain height
    List<ByteArrayWrapper> expectedAll = new ArrayList<>();
    Block block = best;
    while (block.getNumber() > 0) {
        expectedAll.add(ByteArrayWrapper.wrap(block.getHash()));
        block = chain.getBlockByHash(block.getParentHash());
    }
    int qty;
    // get one block
    qty = 1;
    assertEndWith_expectedOne(chain, bestHash, qty);
    // get list of chain height from best block
    // chain height
    qty = (int) best.getNumber();
    assertEndWith(chain, bestHash, qty, expectedAll);
    // get list of half from best block
    qty = (int) (best.getNumber() / 2);
    List<ByteArrayWrapper> expectedHalf = new ArrayList<>();
    block = best;
    for (int i = 0; i < qty; i++) {
        expectedHalf.add(ByteArrayWrapper.wrap(block.getHash()));
        block = chain.getBlockByHash(block.getParentHash());
    }
    assertEndWith(chain, bestHash, qty, expectedHalf);
    // get list of 20 from genesis
    // larger than block height
    qty = 24;
    expectedAll.add(ByteArrayWrapper.wrap(chain.getGenesis().getHash()));
    assertEndWith(chain, bestHash, qty, expectedAll);
    // get list of -10 from best block
    // negative value
    qty = -10;
    assertEndWith_expectedOne(chain, bestHash, qty);
    // get list of 0 from best block
    // zero blocks requested
    qty = 0;
    assertEndWith_expectedOne(chain, bestHash, qty);
}

Example 63 with Block

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

the class BlockchainImplementationTest method testGetListOfHeadersStartFromBlock_wGenesisBlock.

@Test
public void testGetListOfHeadersStartFromBlock_wGenesisBlock() {
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").withDefaultAccounts(accounts).build();
    StandaloneBlockchain chain = bundle.bc;
    // populate chain at random
    generateRandomChain(chain, 12, 2, accounts, MAX_TX_PER_BLOCK);
    MiningBlock genesis = chain.getGenesis();
    Block best = chain.getBestBlock();
    assertThat(best.getNumber()).isGreaterThan(0L);
    byte[] genesisHash = genesis.getHash();
    // expected result with qty >= chain height
    List<ByteArrayWrapper> expectedAll = new ArrayList<>();
    Block block = chain.getBlockByHash(best.getParentHash());
    while (block.getNumber() > 0) {
        expectedAll.add(0, ByteArrayWrapper.wrap(block.getHash()));
        block = chain.getBlockByHash(block.getParentHash());
    }
    expectedAll.add(0, ByteArrayWrapper.wrap(genesis.getHash()));
    int qty;
    // get one block
    qty = 1;
    assertStartFromBlock_expectedOne(chain, genesisHash, 0, qty);
    // get list of chain height from genesis block
    // chain height
    qty = (int) best.getNumber();
    assertStartFromBlock(chain, 0, qty, expectedAll);
    // get list of half from genesis block
    qty = (int) (best.getNumber() / 2);
    List<ByteArrayWrapper> expectedHalf = new ArrayList<>();
    block = chain.getBlockByNumber(qty - 1);
    for (int i = 0; i < qty; i++) {
        expectedHalf.add(0, ByteArrayWrapper.wrap(block.getHash()));
        block = chain.getBlockByHash(block.getParentHash());
    }
    assertStartFromBlock(chain, 0, qty, expectedHalf);
    // get list of 20 from genesis
    // larger than block height
    qty = 24;
    expectedAll.add(ByteArrayWrapper.wrap(best.getHash()));
    assertStartFromBlock(chain, 0, qty, expectedAll);
    // get list of -10 from genesis block
    // negative value
    qty = -10;
    assertStartFromBlock_expectedOne(chain, genesisHash, 0, qty);
    // get list of 0 from genesis block
    // zero blocks requested
    qty = 0;
    assertStartFromBlock_expectedOne(chain, genesisHash, 0, qty);
}

Example 64 with Block

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

the class BlockchainImplementationTest method testFindMissingAncestor_withFirstMissing.

@Test
public void testFindMissingAncestor_withFirstMissing() {
    StandaloneBlockchain.Builder builder = new StandaloneBlockchain.Builder();
    StandaloneBlockchain.Bundle bundle = builder.withValidatorConfiguration("simple").build();
    StandaloneBlockchain chain = bundle.bc;
    // populate chain at random
    generateRandomChainWithoutTransactions(chain, 2, 1);
    Block best = chain.getBestBlock();
    byte[] bestHash = best.getHash();
    // delete the block from the db
    ((MockDB) chain.getRepository().getBlockDatabase()).deleteAndCommit(bestHash);
    Pair<ByteArrayWrapper, Long> pair = chain.findMissingAncestor(best);
    assertThat(pair.getLeft()).isEqualTo(ByteArrayWrapper.wrap(bestHash));
    assertThat(pair.getRight()).isEqualTo(best.getNumber());
}

Example 65 with Block

use of org.aion.zero.impl.types.Block 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());
}