Beispiel #1
0
  @Test
  public void validateGenesisBlock() {
    // CREATE EMPTY DATABASE
    DBSet databaseSet = DBSet.createEmptyDatabaseSet();

    // CREATE GENESIS BLOCK
    Block genesisBlock = new GenesisBlock();

    // CHECK IF VALID
    assertEquals(true, genesisBlock.isValid(databaseSet));

    // ADD INVALID GENESIS TRANSACTION
    Transaction transaction =
        new GenesisTransaction(
            new Account("XUi2oga2pnGNcZ9es6pBqxydtRZKWdkL2g"),
            BigDecimal.valueOf(-1000).setScale(8),
            NTP.getTime());
    genesisBlock.addTransaction(transaction);

    // CHECK IF INVALID
    assertEquals(false, genesisBlock.isValid(databaseSet));

    // CREATE NEW BLOCK
    genesisBlock = new GenesisBlock();

    // CHECK IF VALID
    assertEquals(true, genesisBlock.isValid(databaseSet));

    // PROCESS
    genesisBlock.process(databaseSet);

    // CHECK IF INVALID
    assertEquals(false, genesisBlock.isValid(databaseSet));
  }
Beispiel #2
0
  @Test
  public void orphanBlock() {
    // 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);

    // ORPHAN BLOCK
    block.orphan(databaseSet);

    // CHECK BALANCE GENERATOR
    assertEquals(
        true, generator.getConfirmedBalance(databaseSet).compareTo(BigDecimal.valueOf(1000)) == 0);

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

    // CHECK BALANCE RECIPIENT
    assertEquals(
        true, recipient.getConfirmedBalance(databaseSet).compareTo(BigDecimal.valueOf(1000)) == 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(0)) == 0);

    // CHECK LAST REFERENCE RECIPIENT
    assertEquals(true, Arrays.equals(recipient2.getLastReference(databaseSet), new byte[0]));

    // CHECK LAST BLOCK
    assertEquals(
        true,
        Arrays.equals(
            genesisBlock.getSignature(), databaseSet.getBlockMap().getLastBlock().getSignature()));
  }