@Test
public void testGetOpenTransactionOutputs() throws Exception {
final int UNDOABLE_BLOCKS_STORED = 10;
store = createStore(params, UNDOABLE_BLOCKS_STORED);
chain = new FullPrunedBlockChain(params, store);
// Check that we aren't accidentally leaving any references
// to the full StoredUndoableBlock's lying around (ie memory leaks)
ECKey outKey = new ECKey();
int height = 1;
// Build some blocks on genesis block to create a spendable output
Block rollingBlock =
params
.getGenesisBlock()
.createNextBlockWithCoinbase(Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height++);
chain.add(rollingBlock);
Transaction transaction = rollingBlock.getTransactions().get(0);
TransactionOutPoint spendableOutput = new TransactionOutPoint(params, 0, transaction.getHash());
byte[] spendableOutputScriptPubKey = transaction.getOutputs().get(0).getScriptBytes();
for (int i = 1; i < params.getSpendableCoinbaseDepth(); i++) {
rollingBlock =
rollingBlock.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height++);
chain.add(rollingBlock);
}
rollingBlock = rollingBlock.createNextBlock(null);
// Create bitcoin spend of 1 BTC.
ECKey toKey = new ECKey();
Coin amount = Coin.valueOf(100000000);
Address address = new Address(params, toKey.getPubKeyHash());
Coin totalAmount = Coin.ZERO;
Transaction t = new Transaction(params);
t.addOutput(new TransactionOutput(params, t, amount, toKey));
t.addSignedInput(spendableOutput, new Script(spendableOutputScriptPubKey), outKey);
rollingBlock.addTransaction(t);
rollingBlock.solve();
chain.add(rollingBlock);
totalAmount = totalAmount.add(amount);
List<UTXO> outputs = store.getOpenTransactionOutputs(Lists.newArrayList(address));
assertNotNull(outputs);
assertEquals("Wrong Number of Outputs", 1, outputs.size());
UTXO output = outputs.get(0);
assertEquals("The address is not equal", address.toString(), output.getAddress());
assertEquals("The amount is not equal", totalAmount, output.getValue());
outputs = null;
output = null;
try {
store.close();
} catch (Exception e) {
}
}
@Test
public void skipScripts() throws Exception {
store = createStore(params, 10);
chain = new FullPrunedBlockChain(params, store);
// Check that we aren't accidentally leaving any references
// to the full StoredUndoableBlock's lying around (ie memory leaks)
ECKey outKey = new ECKey();
int height = 1;
// Build some blocks on genesis block to create a spendable output
Block rollingBlock =
params
.getGenesisBlock()
.createNextBlockWithCoinbase(Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height++);
chain.add(rollingBlock);
TransactionOutput spendableOutput = rollingBlock.getTransactions().get(0).getOutput(0);
for (int i = 1; i < params.getSpendableCoinbaseDepth(); i++) {
rollingBlock =
rollingBlock.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height++);
chain.add(rollingBlock);
}
rollingBlock = rollingBlock.createNextBlock(null);
Transaction t = new Transaction(params);
t.addOutput(new TransactionOutput(params, t, FIFTY_COINS, new byte[] {}));
TransactionInput input = t.addInput(spendableOutput);
// Invalid script.
input.clearScriptBytes();
rollingBlock.addTransaction(t);
rollingBlock.solve();
chain.setRunScripts(false);
try {
chain.add(rollingBlock);
} catch (VerificationException e) {
fail();
}
try {
store.close();
} catch (Exception e) {
}
}
@Test
public void testUTXOProviderWithWallet() throws Exception {
final int UNDOABLE_BLOCKS_STORED = 10;
store = createStore(params, UNDOABLE_BLOCKS_STORED);
chain = new FullPrunedBlockChain(params, store);
// Check that we aren't accidentally leaving any references
// to the full StoredUndoableBlock's lying around (ie memory leaks)
ECKey outKey = new ECKey();
int height = 1;
// Build some blocks on genesis block to create a spendable output.
Block rollingBlock =
params
.getGenesisBlock()
.createNextBlockWithCoinbase(Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height++);
chain.add(rollingBlock);
Transaction transaction = rollingBlock.getTransactions().get(0);
TransactionOutPoint spendableOutput = new TransactionOutPoint(params, 0, transaction.getHash());
byte[] spendableOutputScriptPubKey = transaction.getOutputs().get(0).getScriptBytes();
for (int i = 1; i < params.getSpendableCoinbaseDepth(); i++) {
rollingBlock =
rollingBlock.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height++);
chain.add(rollingBlock);
}
rollingBlock = rollingBlock.createNextBlock(null);
// Create 1 BTC spend to a key in this wallet (to ourselves).
Wallet wallet = new Wallet(params);
assertEquals(
"Available balance is incorrect",
Coin.ZERO,
wallet.getBalance(Wallet.BalanceType.AVAILABLE));
assertEquals(
"Estimated balance is incorrect",
Coin.ZERO,
wallet.getBalance(Wallet.BalanceType.ESTIMATED));
wallet.setUTXOProvider(store);
ECKey toKey = wallet.freshReceiveKey();
Coin amount = Coin.valueOf(100000000);
Transaction t = new Transaction(params);
t.addOutput(new TransactionOutput(params, t, amount, toKey));
t.addSignedInput(spendableOutput, new Script(spendableOutputScriptPubKey), outKey);
rollingBlock.addTransaction(t);
rollingBlock.solve();
chain.add(rollingBlock);
// Create another spend of 1/2 the value of BTC we have available using the wallet (store coin
// selector).
ECKey toKey2 = new ECKey();
Coin amount2 = amount.divide(2);
Address address2 = new Address(params, toKey2.getPubKeyHash());
Wallet.SendRequest req = Wallet.SendRequest.to(address2, amount2);
wallet.completeTx(req);
wallet.commitTx(req.tx);
Coin fee = req.fee;
// There should be one pending tx (our spend).
assertEquals(
"Wrong number of PENDING.4", 1, wallet.getPoolSize(WalletTransaction.Pool.PENDING));
Coin totalPendingTxAmount = Coin.ZERO;
for (Transaction tx : wallet.getPendingTransactions()) {
totalPendingTxAmount = totalPendingTxAmount.add(tx.getValueSentToMe(wallet));
}
// The availbale balance should be the 0 (as we spent the 1 BTC that's pending) and estimated
// should be 1/2 - fee BTC
assertEquals(
"Available balance is incorrect",
Coin.ZERO,
wallet.getBalance(Wallet.BalanceType.AVAILABLE));
assertEquals(
"Estimated balance is incorrect",
amount2.subtract(fee),
wallet.getBalance(Wallet.BalanceType.ESTIMATED));
assertEquals("Pending tx amount is incorrect", amount2.subtract(fee), totalPendingTxAmount);
try {
store.close();
} catch (Exception e) {
}
}
@Test
public void testFinalizedBlocks() throws Exception {
final int UNDOABLE_BLOCKS_STORED = 10;
store = createStore(params, UNDOABLE_BLOCKS_STORED);
chain = new FullPrunedBlockChain(params, store);
// Check that we aren't accidentally leaving any references
// to the full StoredUndoableBlock's lying around (ie memory leaks)
ECKey outKey = new ECKey();
int height = 1;
// Build some blocks on genesis block to create a spendable output
Block rollingBlock =
params
.getGenesisBlock()
.createNextBlockWithCoinbase(Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height++);
chain.add(rollingBlock);
TransactionOutPoint spendableOutput =
new TransactionOutPoint(params, 0, rollingBlock.getTransactions().get(0).getHash());
byte[] spendableOutputScriptPubKey =
rollingBlock.getTransactions().get(0).getOutputs().get(0).getScriptBytes();
for (int i = 1; i < params.getSpendableCoinbaseDepth(); i++) {
rollingBlock =
rollingBlock.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_GENESIS, outKey.getPubKey(), height++);
chain.add(rollingBlock);
}
WeakReference<UTXO> out =
new WeakReference<UTXO>(
store.getTransactionOutput(spendableOutput.getHash(), spendableOutput.getIndex()));
rollingBlock = rollingBlock.createNextBlock(null);
Transaction t = new Transaction(params);
// Entirely invalid scriptPubKey
t.addOutput(new TransactionOutput(params, t, FIFTY_COINS, new byte[] {}));
t.addSignedInput(spendableOutput, new Script(spendableOutputScriptPubKey), outKey);
rollingBlock.addTransaction(t);
rollingBlock.solve();
chain.add(rollingBlock);
WeakReference<StoredUndoableBlock> undoBlock =
new WeakReference<StoredUndoableBlock>(store.getUndoBlock(rollingBlock.getHash()));
StoredUndoableBlock storedUndoableBlock = undoBlock.get();
assertNotNull(storedUndoableBlock);
assertNull(storedUndoableBlock.getTransactions());
WeakReference<TransactionOutputChanges> changes =
new WeakReference<TransactionOutputChanges>(storedUndoableBlock.getTxOutChanges());
assertNotNull(changes.get());
storedUndoableBlock = null; // Blank the reference so it can be GCd.
// Create a chain longer than UNDOABLE_BLOCKS_STORED
for (int i = 0; i < UNDOABLE_BLOCKS_STORED; i++) {
rollingBlock = rollingBlock.createNextBlock(null);
chain.add(rollingBlock);
}
// Try to get the garbage collector to run
System.gc();
assertNull(undoBlock.get());
assertNull(changes.get());
assertNull(out.get());
try {
store.close();
} catch (Exception e) {
}
}
@Test
public void testAppearedAtChainHeightDepthAndWorkDone() throws Exception {
// Test the TransactionConfidence appearedAtChainHeight, depth and workDone field are stored.
BlockChain chain = new BlockChain(params, myWallet, new MemoryBlockStore(params));
final ArrayList<Transaction> txns = new ArrayList<Transaction>(2);
myWallet.addEventListener(
new AbstractWalletEventListener() {
@Override
public void onCoinsReceived(
Wallet wallet, Transaction tx, Coin prevBalance, Coin newBalance) {
txns.add(tx);
}
});
// Start by building two blocks on top of the genesis block.
Block b1 = params.getGenesisBlock().createNextBlock(myAddress);
BigInteger work1 = b1.getWork();
assertTrue(work1.signum() > 0);
Block b2 = b1.createNextBlock(myAddress);
BigInteger work2 = b2.getWork();
assertTrue(work2.signum() > 0);
assertTrue(chain.add(b1));
assertTrue(chain.add(b2));
// We now have the following chain:
// genesis -> b1 -> b2
// Check the transaction confidence levels are correct before wallet roundtrip.
Threading.waitForUserCode();
assertEquals(2, txns.size());
TransactionConfidence confidence0 = txns.get(0).getConfidence();
TransactionConfidence confidence1 = txns.get(1).getConfidence();
assertEquals(1, confidence0.getAppearedAtChainHeight());
assertEquals(2, confidence1.getAppearedAtChainHeight());
assertEquals(2, confidence0.getDepthInBlocks());
assertEquals(1, confidence1.getDepthInBlocks());
// Roundtrip the wallet and check it has stored the depth and workDone.
Wallet rebornWallet = roundTrip(myWallet);
Set<Transaction> rebornTxns = rebornWallet.getTransactions(false);
assertEquals(2, rebornTxns.size());
// The transactions are not guaranteed to be in the same order so sort them to be in chain
// height order if required.
Iterator<Transaction> it = rebornTxns.iterator();
Transaction txA = it.next();
Transaction txB = it.next();
Transaction rebornTx0, rebornTx1;
if (txA.getConfidence().getAppearedAtChainHeight() == 1) {
rebornTx0 = txA;
rebornTx1 = txB;
} else {
rebornTx0 = txB;
rebornTx1 = txA;
}
TransactionConfidence rebornConfidence0 = rebornTx0.getConfidence();
TransactionConfidence rebornConfidence1 = rebornTx1.getConfidence();
assertEquals(1, rebornConfidence0.getAppearedAtChainHeight());
assertEquals(2, rebornConfidence1.getAppearedAtChainHeight());
assertEquals(2, rebornConfidence0.getDepthInBlocks());
assertEquals(1, rebornConfidence1.getDepthInBlocks());
}
