Beispiel #1
0
  @Test
  public void parseGenesisBlock() {
    // CREATE VALID BLOCK
    Block genesisBlock = new GenesisBlock();

    // CONVERT TO BYTES
    byte[] rawBlock = genesisBlock.toBytes();

    try {
      // PARSE FROM BYTES
      Block parsedBlock = BlockFactory.getInstance().parse(rawBlock);

      // CHECK INSTANCE
      assertEquals(true, parsedBlock instanceof GenesisBlock);

      // CHECK SIGNATURE
      assertEquals(true, Arrays.equals(genesisBlock.getSignature(), parsedBlock.getSignature()));

      // CHECK GENERATOR
      assertEquals(
          genesisBlock.getGenerator().getAddress(), parsedBlock.getGenerator().getAddress());

      // CHECK BASE TARGET
      assertEquals(genesisBlock.getGeneratingBalance(), parsedBlock.getGeneratingBalance());

      // CHECK FEE
      assertEquals(genesisBlock.getTotalFee(), parsedBlock.getTotalFee());

      // CHECK REFERENCE
      assertEquals(true, Arrays.equals(genesisBlock.getReference(), parsedBlock.getReference()));

      // CHECK TIMESTAMP
      assertEquals(genesisBlock.getTimestamp(), parsedBlock.getTimestamp());

      // CHECK TRANSACTION COUNT
      assertEquals(genesisBlock.getTransactionCount(), parsedBlock.getTransactionCount());
    } catch (Exception e) {
      fail("Exception while parsing transaction.");
    }

    // PARSE TRANSACTION FROM WRONG BYTES
    rawBlock = new byte[50];

    try {
      // PARSE FROM BYTES
      BlockFactory.getInstance().parse(rawBlock);

      // FAIL
      fail("this should throw an exception");
    } catch (Exception e) {
      // EXCEPTION IS THROWN OKE
    }
  }
Beispiel #2
0
  @Test
  public void processBlock() {
    // CREATE EMPTY MEMORY DATABASE
    DBSet databaseSet = DBSet.createEmptyDatabaseSet();

    // PROCESS GENESISBLOCK
    GenesisBlock genesisBlock = new GenesisBlock();
    genesisBlock.process(databaseSet);

    // CREATE KNOWN ACCOUNT
    byte[] seed = Crypto.getInstance().digest("test".getBytes());
    byte[] privateKey = Crypto.getInstance().createKeyPair(seed).getA();
    PrivateKeyAccount generator = new PrivateKeyAccount(privateKey);

    // PROCESS GENESIS TRANSACTION TO MAKE SURE GENERATOR HAS FUNDS
    Transaction transaction =
        new GenesisTransaction(generator, BigDecimal.valueOf(1000).setScale(8), NTP.getTime());
    transaction.process(databaseSet);

    // GENERATE NEXT BLOCK
    BlockGenerator blockGenerator = new BlockGenerator();
    Block block = blockGenerator.generateNextBlock(databaseSet, generator, genesisBlock);

    // FORK
    DBSet fork = databaseSet.fork();

    // GENERATE PAYMENT 1
    Account recipient = new Account("XUi2oga2pnGNcZ9es6pBqxydtRZKWdkL2g");
    long timestamp = block.getTimestamp();
    byte[] signature =
        PaymentTransaction.generateSignature(
            databaseSet,
            generator,
            recipient,
            BigDecimal.valueOf(100).setScale(8),
            BigDecimal.valueOf(1).setScale(8),
            timestamp);
    Transaction payment1 =
        new PaymentTransaction(
            generator,
            recipient,
            BigDecimal.valueOf(100).setScale(8),
            BigDecimal.valueOf(1).setScale(8),
            timestamp,
            generator.getLastReference(databaseSet),
            signature);
    payment1.process(fork);
    block.addTransaction(payment1);

    // GENERATE PAYMENT 2
    Account recipient2 = new Account("XLPYYfxKEiDcybCkFA7jXcxSdePMMoyZLt");
    signature =
        PaymentTransaction.generateSignature(
            fork,
            generator,
            recipient2,
            BigDecimal.valueOf(100).setScale(8),
            BigDecimal.valueOf(1).setScale(8),
            timestamp);
    Transaction payment2 =
        new PaymentTransaction(
            generator,
            recipient2,
            BigDecimal.valueOf(100).setScale(8),
            BigDecimal.valueOf(1).setScale(8),
            timestamp,
            generator.getLastReference(fork),
            signature);
    block.addTransaction(payment2);

    // ADD TRANSACTION SIGNATURE
    byte[] transactionsSignature = blockGenerator.calculateTransactionsSignature(block, generator);
    block.setTransactionsSignature(transactionsSignature);

    // CHECK VALID
    assertEquals(true, block.isSignatureValid());
    assertEquals(true, block.isValid(databaseSet));

    // PROCESS BLOCK
    block.process(databaseSet);

    // CHECK BALANCE GENERATOR
    assertEquals(
        true, generator.getConfirmedBalance(databaseSet).compareTo(BigDecimal.valueOf(800)) == 0);

    // CHECK LAST REFERENCE GENERATOR
    assertEquals(
        true, Arrays.equals(generator.getLastReference(databaseSet), payment2.getSignature()));

    // CHECK BALANCE RECIPIENT
    assertEquals(
        true, recipient.getConfirmedBalance(databaseSet).compareTo(BigDecimal.valueOf(1100)) == 0);

    // CHECK LAST REFERENCE RECIPIENT
    assertEquals(
        false, Arrays.equals(recipient.getLastReference(databaseSet), payment1.getSignature()));

    // CHECK BALANCE RECIPIENT2
    assertEquals(
        true, recipient2.getConfirmedBalance(databaseSet).compareTo(BigDecimal.valueOf(100)) == 0);

    // CHECK LAST REFERENCE RECIPIENT
    assertEquals(
        true, Arrays.equals(recipient2.getLastReference(databaseSet), payment2.getSignature()));

    // CHECK TOTAL FEE
    assertEquals(true, block.getTotalFee().compareTo(BigDecimal.valueOf(2)) == 0);

    // CHECK TOTAL TRANSACTIONS
    assertEquals(2, block.getTransactionCount());

    // CHECK LAST BLOCK
    assertEquals(
        true,
        Arrays.equals(
            block.getSignature(), databaseSet.getBlockMap().getLastBlock().getSignature()));
  }
Beispiel #3
0
  @Test
  public void parseBlock() {
    // CREATE EMPTY MEMORY DATABASE
    DBSet databaseSet = DBSet.createEmptyDatabaseSet();

    // PROCESS GENESISBLOCK
    GenesisBlock genesisBlock = new GenesisBlock();
    genesisBlock.process(databaseSet);

    // CREATE KNOWN ACCOUNT
    byte[] seed = Crypto.getInstance().digest("test".getBytes());
    byte[] privateKey = Crypto.getInstance().createKeyPair(seed).getA();
    PrivateKeyAccount generator = new PrivateKeyAccount(privateKey);

    // PROCESS GENESIS TRANSACTION TO MAKE SURE GENERATOR HAS FUNDS
    Transaction transaction =
        new GenesisTransaction(generator, BigDecimal.valueOf(1000).setScale(8), NTP.getTime());
    transaction.process(databaseSet);

    // GENERATE NEXT BLOCK
    BlockGenerator blockGenerator = new BlockGenerator();
    Block block = blockGenerator.generateNextBlock(databaseSet, generator, genesisBlock);

    // FORK
    DBSet fork = databaseSet.fork();

    // GENERATE PAYMENT 1
    Account recipient = new Account("XUi2oga2pnGNcZ9es6pBqxydtRZKWdkL2g");
    long timestamp = block.getTimestamp();
    byte[] signature =
        PaymentTransaction.generateSignature(
            databaseSet,
            generator,
            recipient,
            BigDecimal.valueOf(100).setScale(8),
            BigDecimal.valueOf(1).setScale(8),
            timestamp);
    Transaction payment1 =
        new PaymentTransaction(
            generator,
            recipient,
            BigDecimal.valueOf(100).setScale(8),
            BigDecimal.valueOf(1).setScale(8),
            timestamp,
            generator.getLastReference(databaseSet),
            signature);
    payment1.process(fork);
    block.addTransaction(payment1);

    // GENERATE PAYMENT 2
    Account recipient2 = new Account("XLPYYfxKEiDcybCkFA7jXcxSdePMMoyZLt");
    signature =
        PaymentTransaction.generateSignature(
            fork,
            generator,
            recipient2,
            BigDecimal.valueOf(100).setScale(8),
            BigDecimal.valueOf(1).setScale(8),
            timestamp);
    Transaction payment2 =
        new PaymentTransaction(
            generator,
            recipient2,
            BigDecimal.valueOf(100).setScale(8),
            BigDecimal.valueOf(1).setScale(8),
            timestamp,
            generator.getLastReference(fork),
            signature);
    block.addTransaction(payment2);

    // ADD TRANSACTION SIGNATURE
    byte[] transactionsSignature =
        Crypto.getInstance().sign(generator, block.getGeneratorSignature());
    block.setTransactionsSignature(transactionsSignature);

    // CONVERT TO BYTES
    byte[] rawBlock = block.toBytes();

    try {
      // PARSE FROM BYTES
      Block parsedBlock = BlockFactory.getInstance().parse(rawBlock);

      // CHECK INSTANCE
      assertEquals(false, parsedBlock instanceof GenesisBlock);

      // CHECK SIGNATURE
      assertEquals(true, Arrays.equals(block.getSignature(), parsedBlock.getSignature()));

      // CHECK GENERATOR
      assertEquals(block.getGenerator().getAddress(), parsedBlock.getGenerator().getAddress());

      // CHECK BASE TARGET
      assertEquals(block.getGeneratingBalance(), parsedBlock.getGeneratingBalance());

      // CHECK FEE
      assertEquals(block.getTotalFee(), parsedBlock.getTotalFee());

      // CHECK REFERENCE
      assertEquals(true, Arrays.equals(block.getReference(), parsedBlock.getReference()));

      // CHECK TIMESTAMP
      assertEquals(block.getTimestamp(), parsedBlock.getTimestamp());

      // CHECK TRANSACTIONS COUNT
      assertEquals(block.getTransactionCount(), parsedBlock.getTransactionCount());
    } catch (Exception e) {
      fail("Exception while parsing transaction.");
    }

    // PARSE TRANSACTION FROM WRONG BYTES
    rawBlock = new byte[50];

    try {
      // PARSE FROM BYTES
      BlockFactory.getInstance().parse(rawBlock);

      // FAIL
      fail("this should throw an exception");
    } catch (Exception e) {
      // EXCEPTION IS THROWN OKE
    }
  }