Examples with BlockChainImpl co.rsk.core.bc.BlockChainImpl used on opensource projects

Example 16 with BlockChainImpl

use of co.rsk.core.bc.BlockChainImpl in project rskj by rsksmart.

the class MainNetMinerTest method submitBitcoinBlockProofOfWorkNotGoodEnough.

/*
     * This test is probabilistic, but it has a really high chance to pass. We will generate
     * a random block that it is unlikely to pass the Long.MAX_VALUE difficulty, though
     * it may happen once. Twice would be suspicious.
     */
@Test
public void submitBitcoinBlockProofOfWorkNotGoodEnough() {
    /* We need a low target */
    BlockChainImpl bc = new BlockChainBuilder().build();
    Genesis gen = (Genesis) BlockChainImplTest.getGenesisBlock(bc);
    gen.getHeader().setDifficulty(new BlockDifficulty(BigInteger.valueOf(Long.MAX_VALUE)));
    bc.setStatus(gen, gen.getCumulativeDifficulty());
    World world = new World(bc, gen);
    TransactionPool transactionPool = new TransactionPoolImpl(config, world.getRepository(), world.getBlockChain().getBlockStore(), null, null, null, 10, 100);
    blockchain = world.getBlockChain();
    EthereumImpl ethereumImpl = Mockito.mock(EthereumImpl.class);
    MinerServer minerServer = new MinerServerImpl(config, ethereumImpl, blockchain, null, DIFFICULTY_CALCULATOR, new ProofOfWorkRule(config).setFallbackMiningEnabled(false), blockToMineBuilder(), ConfigUtils.getDefaultMiningConfig());
    try {
        minerServer.start();
        MinerWork work = minerServer.getWork();
        co.rsk.bitcoinj.core.BtcBlock bitcoinMergedMiningBlock = getMergedMiningBlock(work);
        bitcoinMergedMiningBlock.setNonce(2);
        SubmitBlockResult result = minerServer.submitBitcoinBlock(work.getBlockHashForMergedMining(), bitcoinMergedMiningBlock);
        Assert.assertEquals("ERROR", result.getStatus());
        Assert.assertNull(result.getBlockInfo());
        Mockito.verify(ethereumImpl, Mockito.times(0)).addNewMinedBlock(Mockito.any());
    } finally {
        minerServer.stop();
    }
}

Example 17 with BlockChainImpl

use of co.rsk.core.bc.BlockChainImpl in project rskj by rsksmart.

the class CodeReplaceTest method replaceCodeTest1.

@Test
public void replaceCodeTest1() throws IOException, InterruptedException {
    BigInteger nonce = config.getBlockchainConfig().getCommonConstants().getInitialNonce();
    BlockChainImpl blockchain = org.ethereum.core.ImportLightTest.createBlockchain(GenesisLoader.loadGenesis(config, nonce, getClass().getResourceAsStream("/genesis/genesis-light.json"), false));
    ECKey sender = ECKey.fromPrivate(Hex.decode("3ec771c31cac8c0dba77a69e503765701d3c2bb62435888d4ffa38fed60c445c"));
    System.out.println("address: " + Hex.toHexString(sender.getAddress()));
    String asm = // (7b) Extract real code into address 0, skip first 12 bytes, copy 20 bytes
    "0x14 0x0C 0x00 CODECOPY " + // (5b) offset 0, size 0x14, now return the first code
    "0x14 0x00  RETURN " + // (4b) header script v1
    "HEADER !0x01 !0x01 !0x00 " + // (3b) store at offset 0, read data from offset 0. Transfer 32 bytes
    "0x00 CALLDATALOAD " + // (3b) store the data at address 0
    "0x00 MSTORE " + // We replace TWO TIMES to make sure that only the last replacement takes place
    "0x01 0x00 CODEREPLACE " + // This is the good one.
    "0x10 0x00 CODEREPLACE";
    // (5b) set new code: offset 0, size 16 bytes.
    EVMAssembler assembler = new EVMAssembler();
    byte[] code = assembler.assemble(asm);
    // Creates a contract
    Transaction tx1 = createTx(blockchain, sender, new byte[0], code);
    executeTransaction(blockchain, tx1);
    // Now we can directly check the store and see the new code.
    RskAddress createdContract = tx1.getContractAddress();
    byte[] expectedCode = Arrays.copyOfRange(code, 12, 12 + 20);
    byte[] installedCode = blockchain.getRepository().getContractDetails(createdContract).getCode();
    // assert the contract has been created
    Assert.assertTrue(Arrays.equals(expectedCode, installedCode));
    // Note that this code does not have a header, then its version == 0
    String asm2 = // (5b) Store at address 0x00, the value 0xFF
    "0xFF 0x00 MSTORE " + // (5b) And return such value 0xFF, at offset 0x1F
    "0x01 0x1F RETURN " + // fill with nops to make it 16 bytes in length
    "STOP STOP STOP STOP STOP STOP";
    // 16
    byte[] code2 = assembler.assemble(asm2);
    // The second transaction changes the contract code
    Transaction tx2 = createTx(blockchain, sender, tx1.getContractAddress().getBytes(), code2);
    TransactionExecutor executor2 = executeTransaction(blockchain, tx2);
    byte[] installedCode2 = blockchain.getRepository().getContractDetails(createdContract).getCode();
    // assert the contract code has been created
    Assert.assertTrue(Arrays.equals(installedCode2, code2));
    // there is one code change
    Assert.assertEquals(1, executor2.getResult().getCodeChanges().size());
    // We could add a third tx to execute the new code
    Transaction tx3 = createTx(blockchain, sender, tx1.getContractAddress().getBytes(), new byte[0]);
    TransactionExecutor executor3 = executeTransaction(blockchain, tx3);
    // check return code from contract call
    Assert.assertArrayEquals(Hex.decode("FF"), executor3.getResult().getHReturn());
}

Example 18 with BlockChainImpl

use of co.rsk.core.bc.BlockChainImpl in project rskj by rsksmart.

the class CodeReplaceTest method replaceCodeTest2.

@Test
public void replaceCodeTest2() throws IOException, InterruptedException {
    // We test code replacement during initialization: this is forbitten.
    BigInteger nonce = config.getBlockchainConfig().getCommonConstants().getInitialNonce();
    BlockChainImpl blockchain = org.ethereum.core.ImportLightTest.createBlockchain(GenesisLoader.loadGenesis(config, nonce, getClass().getResourceAsStream("/genesis/genesis-light.json"), false));
    ECKey sender = ECKey.fromPrivate(Hex.decode("3ec771c31cac8c0dba77a69e503765701d3c2bb62435888d4ffa38fed60c445c"));
    System.out.println("address: " + Hex.toHexString(sender.getAddress()));
    String asm = // (4b) header script v1
    "HEADER !0x01 !0x01 !0x00 " + // (5b) we attempt to replace the code
    "0x01 0x00 CODEREPLACE " + // (7b) Extract real code into address 0, skip first 12 bytes, copy 1 bytes
    "0x01 0x15 0x00 CODECOPY " + // (5b) offset 0, size 0x01, now return the first code
    "0x01 0x00  RETURN " + // (1b) REAL code to install
    "STOP ";
    EVMAssembler assembler = new EVMAssembler();
    byte[] code = assembler.assemble(asm);
    // Creates a contract
    Transaction tx1 = createTx(blockchain, sender, new byte[0], code);
    TransactionExecutor executor1 = executeTransaction(blockchain, tx1);
    // Now we can directly check the store and see the new code.
    Assert.assertTrue(executor1.getResult().getException() != null);
}

Example 19 with BlockChainImpl

use of co.rsk.core.bc.BlockChainImpl in project rskj by rsksmart.

the class BlockUnclesValidationRuleTest method rejectBlockWithUncleHavingHigherNumber.

@Test
public void rejectBlockWithUncleHavingHigherNumber() {
    BlockGenerator blockGenerator = new BlockGenerator();
    Block genesis = blockGenerator.getGenesisBlock();
    Block block1 = blockGenerator.createChildBlock(genesis);
    Block uncle1 = blockGenerator.createChildBlock(block1);
    Block uncle2 = blockGenerator.createChildBlock(uncle1);
    List<BlockHeader> uncles = new ArrayList<>();
    uncles.add(uncle2.getHeader());
    Block block = blockGenerator.createChildBlock(block1, null, uncles, 1, null);
    BlockChainImpl blockChain = BlockChainImplTest.createBlockChain();
    BlockStore store = blockChain.getBlockStore();
    store.saveBlock(genesis, new BlockDifficulty(BigInteger.valueOf(1)), true);
    store.saveBlock(block1, new BlockDifficulty(BigInteger.valueOf(2)), true);
    BlockUnclesValidationRule rule = new BlockUnclesValidationRule(config, store, 10, 10, new BlockCompositeRule(), new BlockParentCompositeRule());
    Assert.assertFalse(rule.isValid(block));
}

Example 20 with BlockChainImpl

use of co.rsk.core.bc.BlockChainImpl in project rskj by rsksmart.

the class Web3ImplLogsTest method createMainContractWithoutEvents.

@Test
public void createMainContractWithoutEvents() throws Exception {
    World world = new World();
    Account acc1 = new AccountBuilder(world).name("notDefault").balance(Coin.valueOf(10000000)).build();
    BlockChainImpl blockChain = world.getBlockChain();
    TransactionPool transactionPool = new TransactionPoolImpl(config, world.getRepository(), blockChain.getBlockStore(), null, null, null, 10, 100);
    SimpleEthereum eth = new SimpleEthereum();
    eth.repository = world.getBlockChain().getRepository();
    eth.blockchain = world.getBlockChain();
    Web3Impl web3 = createWeb3(eth, world.getBlockChain(), transactionPool, WalletFactory.createWallet());
    // TODO tricky link to listener
    blockChain.setListener(web3.setupListener());
    web3.personal_newAccountWithSeed("notDefault");
    Web3.FilterRequest fr = new Web3.FilterRequest();
    fr.fromBlock = "earliest";
    String id = web3.eth_newFilter(fr);
    Block genesis = world.getBlockByName("g00");
    Transaction tx;
    tx = getMainContractTransaction(acc1);
    List<Transaction> txs = new ArrayList<>();
    txs.add(tx);
    Block block1 = new BlockBuilder(world).parent(genesis).transactions(txs).build();
    blockChain.tryToConnect(block1);
    Object[] logs = web3.eth_getFilterChanges(id);
    Assert.assertNotNull(id);
    Assert.assertNotNull(logs);
    Assert.assertEquals(0, logs.length);
}