@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)); }
@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())); }