@Test
public void testProofOfWork() throws Exception {
// This params accepts any difficulty target.
NetworkParameters params = UnitTestParams.get();
Block block = params.getDefaultSerializer().makeBlock(blockBytes);
block.setNonce(12346);
try {
block.verify(Block.BLOCK_HEIGHT_GENESIS, EnumSet.noneOf(Block.VerifyFlag.class));
fail();
} catch (VerificationException e) {
// Expected.
}
// Blocks contain their own difficulty target. The BlockChain verification mechanism is what
// stops real blocks
// from containing artificially weak difficulties.
block.setDifficultyTarget(Block.EASIEST_DIFFICULTY_TARGET);
// Now it should pass.
block.verify(Block.BLOCK_HEIGHT_GENESIS, EnumSet.noneOf(Block.VerifyFlag.class));
// Break the nonce again at the lower difficulty level so we can try solving for it.
block.setNonce(1);
try {
block.verify(Block.BLOCK_HEIGHT_GENESIS, EnumSet.noneOf(Block.VerifyFlag.class));
fail();
} catch (VerificationException e) {
// Expected to fail as the nonce is no longer correct.
}
// Should find an acceptable nonce.
block.solve();
block.verify(Block.BLOCK_HEIGHT_GENESIS, EnumSet.noneOf(Block.VerifyFlag.class));
assertEquals(block.getNonce(), 2);
}
@Test
public void derive() throws Exception {
ECKey key1 = chain.getKey(SimpleHDKeyChain.KeyPurpose.RECEIVE_FUNDS);
ECKey key2 = chain.getKey(SimpleHDKeyChain.KeyPurpose.RECEIVE_FUNDS);
final Address address = new Address(UnitTestParams.get(), "n1bQNoEx8uhmCzzA5JPG6sFdtsUQhwiQJV");
assertEquals(address, key1.toAddress(UnitTestParams.get()));
assertEquals(
"mnHUcqUVvrfi5kAaXJDQzBb9HsWs78b42R", key2.toAddress(UnitTestParams.get()).toString());
assertEquals(key1, chain.findKeyFromPubHash(address.getHash160()));
assertEquals(key2, chain.findKeyFromPubKey(key2.getPubKey()));
key1.sign(Sha256Hash.ZERO_HASH);
ECKey key3 = chain.getKey(SimpleHDKeyChain.KeyPurpose.CHANGE);
assertEquals(
"mqumHgVDqNzuXNrszBmi7A2UpmwaPMx4HQ", key3.toAddress(UnitTestParams.get()).toString());
key3.sign(Sha256Hash.ZERO_HASH);
}
@Test
public void testUpdateLength() {
NetworkParameters params = UnitTestParams.get();
Block block =
params
.getGenesisBlock()
.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_GENESIS, new ECKey().getPubKey(), Block.BLOCK_HEIGHT_GENESIS);
assertEquals(block.bitcoinSerialize().length, block.length);
final int origBlockLen = block.length;
Transaction tx = new Transaction(params);
// this is broken until the transaction has > 1 input + output (which is required anyway...)
// assertTrue(tx.length == tx.bitcoinSerialize().length && tx.length == 8);
byte[] outputScript = new byte[10];
Arrays.fill(outputScript, (byte) ScriptOpCodes.OP_FALSE);
tx.addOutput(new TransactionOutput(params, null, Coin.SATOSHI, outputScript));
tx.addInput(
new TransactionInput(
params,
null,
new byte[] {(byte) ScriptOpCodes.OP_FALSE},
new TransactionOutPoint(params, 0, Sha256Hash.of(new byte[] {1}))));
int origTxLength = 8 + 2 + 8 + 1 + 10 + 40 + 1 + 1;
assertEquals(tx.bitcoinSerialize().length, tx.length);
assertEquals(origTxLength, tx.length);
block.addTransaction(tx);
assertEquals(block.bitcoinSerialize().length, block.length);
assertEquals(origBlockLen + tx.length, block.length);
block
.getTransactions()
.get(1)
.getInputs()
.get(0)
.setScriptBytes(new byte[] {(byte) ScriptOpCodes.OP_FALSE, (byte) ScriptOpCodes.OP_FALSE});
assertEquals(block.length, origBlockLen + tx.length);
assertEquals(tx.length, origTxLength + 1);
block.getTransactions().get(1).getInputs().get(0).setScriptBytes(new byte[] {});
assertEquals(block.length, block.bitcoinSerialize().length);
assertEquals(block.length, origBlockLen + tx.length);
assertEquals(tx.length, origTxLength - 1);
block
.getTransactions()
.get(1)
.addInput(
new TransactionInput(
params,
null,
new byte[] {(byte) ScriptOpCodes.OP_FALSE},
new TransactionOutPoint(params, 0, Sha256Hash.of(new byte[] {1}))));
assertEquals(block.length, origBlockLen + tx.length);
assertEquals(tx.length, origTxLength + 41); // - 1 + 40 + 1 + 1
}
/** Returns the network parameters for the given string ID or NULL if not recognized. */
@Nullable
public static NetworkParameters fromID(String id) {
if (id.equals(ID_MAINNET)) {
return MainNetParams.get();
} else if (id.equals(ID_TESTNET)) {
return TestNet3Params.get();
} else if (id.equals(ID_UNITTESTNET)) {
return UnitTestParams.get();
} else if (id.equals(ID_REGTEST)) {
return RegTestParams.get();
} else {
return null;
}
}
/** Returns a testnet params modified to allow any difficulty target. */
@Deprecated
public static NetworkParameters unitTests() {
return UnitTestParams.get();
}
@RunWith(value = Parameterized.class)
public class TransactionBroadcastTest extends TestWithPeerGroup {
static final NetworkParameters params = UnitTestParams.get();
@Parameterized.Parameters
public static Collection<ClientType[]> parameters() {
return Arrays.asList(
new ClientType[] {ClientType.NIO_CLIENT_MANAGER},
new ClientType[] {ClientType.BLOCKING_CLIENT_MANAGER});
}
public TransactionBroadcastTest(ClientType clientType) {
super(clientType);
}
@Override
@Before
public void setUp() throws Exception {
Utils.setMockClock(); // Use mock clock
super.setUp();
// Fix the random permutation that TransactionBroadcast uses to shuffle the peers.
TransactionBroadcast.random = new Random(0);
peerGroup.setMinBroadcastConnections(2);
peerGroup.startAsync();
peerGroup.awaitRunning();
}
@Override
@After
public void tearDown() {
super.tearDown();
}
@Test
public void fourPeers() throws Exception {
InboundMessageQueuer[] channels = {
connectPeer(1), connectPeer(2), connectPeer(3), connectPeer(4)
};
Transaction tx = new Transaction(params);
TransactionBroadcast broadcast = new TransactionBroadcast(peerGroup, tx);
ListenableFuture<Transaction> future = broadcast.broadcast();
assertFalse(future.isDone());
// We expect two peers to receive a tx message, and at least one of the others must announce for
// the future to
// complete successfully.
Message[] messages = {
(Message) outbound(channels[0]),
(Message) outbound(channels[1]),
(Message) outbound(channels[2]),
(Message) outbound(channels[3])
};
// 0 and 3 are randomly selected to receive the broadcast.
assertEquals(tx, messages[0]);
assertEquals(tx, messages[3]);
assertNull(messages[1]);
assertNull(messages[2]);
Threading.waitForUserCode();
assertFalse(future.isDone());
inbound(channels[1], InventoryMessage.with(tx));
pingAndWait(channels[1]);
Threading.waitForUserCode();
assertTrue(future.isDone());
}
@Test
public void retryFailedBroadcast() throws Exception {
// If we create a spend, it's sent to a peer that swallows it, and the peergroup is
// removed/re-added then
// the tx should be broadcast again.
InboundMessageQueuer p1 = connectPeer(1);
connectPeer(2);
// Send ourselves a bit of money.
Block b1 = FakeTxBuilder.makeSolvedTestBlock(blockStore, address);
inbound(p1, b1);
assertNull(outbound(p1));
assertEquals(FIFTY_COINS, wallet.getBalance());
// Now create a spend, and expect the announcement on p1.
Address dest = new ECKey().toAddress(params);
Wallet.SendResult sendResult = wallet.sendCoins(peerGroup, dest, COIN);
assertFalse(sendResult.broadcastComplete.isDone());
Transaction t1;
{
Message m;
while (!((m = outbound(p1)) instanceof Transaction)) ;
t1 = (Transaction) m;
}
assertFalse(sendResult.broadcastComplete.isDone());
// p1 eats it :( A bit later the PeerGroup is taken down.
peerGroup.removeWallet(wallet);
peerGroup.addWallet(wallet);
// We want to hear about it again. Now, because we've disabled the randomness for the unit tests
// it will
// re-appear on p1 again. Of course in the real world it would end up with a different set of
// peers and
// select randomly so we get a second chance.
Transaction t2 = (Transaction) outbound(p1);
assertEquals(t1, t2);
}
@Test
public void peerGroupWalletIntegration() throws Exception {
// Make sure we can create spends, and that they are announced. Then do the same with offline
// mode.
// Set up connections and block chain.
VersionMessage ver = new VersionMessage(params, 2);
ver.localServices = VersionMessage.NODE_NETWORK;
InboundMessageQueuer p1 = connectPeer(1, ver);
InboundMessageQueuer p2 = connectPeer(2);
// Send ourselves a bit of money.
Block b1 = FakeTxBuilder.makeSolvedTestBlock(blockStore, address);
inbound(p1, b1);
pingAndWait(p1);
assertNull(outbound(p1));
assertEquals(FIFTY_COINS, wallet.getBalance());
// Check that the wallet informs us of changes in confidence as the transaction ripples across
// the network.
final Transaction[] transactions = new Transaction[1];
wallet.addEventListener(
new AbstractWalletEventListener() {
@Override
public void onTransactionConfidenceChanged(Wallet wallet, Transaction tx) {
transactions[0] = tx;
}
});
// Now create a spend, and expect the announcement on p1.
Address dest = new ECKey().toAddress(params);
Wallet.SendResult sendResult = wallet.sendCoins(peerGroup, dest, COIN);
assertNotNull(sendResult.tx);
Threading.waitForUserCode();
assertFalse(sendResult.broadcastComplete.isDone());
assertEquals(transactions[0], sendResult.tx);
assertEquals(0, transactions[0].getConfidence().numBroadcastPeers());
transactions[0] = null;
Transaction t1;
{
peerGroup.waitForJobQueue();
Message m = outbound(p1);
// Hack: bloom filters are recalculated asynchronously to sending transactions to avoid lock
// inversion, so we might or might not get the filter/mempool message first or second.
while (!(m instanceof Transaction)) m = outbound(p1);
t1 = (Transaction) m;
}
assertNotNull(t1);
// 49 BTC in change.
assertEquals(valueOf(49, 0), t1.getValueSentToMe(wallet));
// The future won't complete until it's heard back from the network on p2.
InventoryMessage inv = new InventoryMessage(params);
inv.addTransaction(t1);
inbound(p2, inv);
pingAndWait(p2);
Threading.waitForUserCode();
assertTrue(sendResult.broadcastComplete.isDone());
assertEquals(transactions[0], sendResult.tx);
assertEquals(1, transactions[0].getConfidence().numBroadcastPeers());
// Confirm it.
Block b2 = FakeTxBuilder.createFakeBlock(blockStore, t1).block;
inbound(p1, b2);
pingAndWait(p1);
assertNull(outbound(p1));
// Do the same thing with an offline transaction.
peerGroup.removeWallet(wallet);
Wallet.SendRequest req = Wallet.SendRequest.to(dest, valueOf(2, 0));
req.ensureMinRequiredFee = false;
Transaction t3 = checkNotNull(wallet.sendCoinsOffline(req));
assertNull(outbound(p1)); // Nothing sent.
// Add the wallet to the peer group (simulate initialization). Transactions should be announced.
peerGroup.addWallet(wallet);
// Transaction announced to the first peer. No extra Bloom filter because no change address was
// needed.
assertEquals(t3.getHash(), ((Transaction) outbound(p1)).getHash());
}
}
public class WalletProtobufSerializerTest {
static final NetworkParameters params = UnitTestParams.get();
private ECKey myKey;
private ECKey myWatchedKey;
private Address myAddress;
private Wallet myWallet;
public static String WALLET_DESCRIPTION =
"The quick brown fox lives in \u4f26\u6566"; // Beijing in Chinese
private long mScriptCreationTime;
@Before
public void setUp() throws Exception {
BriefLogFormatter.initVerbose();
Context ctx = new Context(params);
myWatchedKey = new ECKey();
myWallet = new Wallet(params);
myKey = new ECKey();
myKey.setCreationTimeSeconds(123456789L);
myWallet.importKey(myKey);
myAddress = myKey.toAddress(params);
myWallet = new Wallet(params);
myWallet.importKey(myKey);
mScriptCreationTime = new Date().getTime() / 1000 - 1234;
myWallet.addWatchedAddress(myWatchedKey.toAddress(params), mScriptCreationTime);
myWallet.setDescription(WALLET_DESCRIPTION);
}
@Test
public void empty() throws Exception {
// Check the base case of a wallet with one key and no transactions.
Wallet wallet1 = roundTrip(myWallet);
assertEquals(0, wallet1.getTransactions(true).size());
assertEquals(Coin.ZERO, wallet1.getBalance());
assertArrayEquals(
myKey.getPubKey(), wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPubKey());
assertArrayEquals(
myKey.getPrivKeyBytes(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPrivKeyBytes());
assertEquals(
myKey.getCreationTimeSeconds(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getCreationTimeSeconds());
assertEquals(mScriptCreationTime, wallet1.getWatchedScripts().get(0).getCreationTimeSeconds());
assertEquals(1, wallet1.getWatchedScripts().size());
assertEquals(
ScriptBuilder.createOutputScript(myWatchedKey.toAddress(params)),
wallet1.getWatchedScripts().get(0));
assertEquals(WALLET_DESCRIPTION, wallet1.getDescription());
}
@Test
public void oneTx() throws Exception {
// Check basic tx serialization.
Coin v1 = COIN;
Transaction t1 = createFakeTx(params, v1, myAddress);
t1.getConfidence().markBroadcastBy(new PeerAddress(InetAddress.getByName("1.2.3.4")));
t1.getConfidence().markBroadcastBy(new PeerAddress(InetAddress.getByName("5.6.7.8")));
t1.getConfidence().setSource(TransactionConfidence.Source.NETWORK);
myWallet.receivePending(t1, null);
Wallet wallet1 = roundTrip(myWallet);
assertEquals(1, wallet1.getTransactions(true).size());
assertEquals(v1, wallet1.getBalance(Wallet.BalanceType.ESTIMATED));
Transaction t1copy = wallet1.getTransaction(t1.getHash());
assertArrayEquals(t1.bitcoinSerialize(), t1copy.bitcoinSerialize());
assertEquals(2, t1copy.getConfidence().numBroadcastPeers());
assertEquals(TransactionConfidence.Source.NETWORK, t1copy.getConfidence().getSource());
Protos.Wallet walletProto = new WalletProtobufSerializer().walletToProto(myWallet);
assertEquals(Protos.Key.Type.ORIGINAL, walletProto.getKey(0).getType());
assertEquals(0, walletProto.getExtensionCount());
assertEquals(1, walletProto.getTransactionCount());
assertEquals(6, walletProto.getKeyCount());
Protos.Transaction t1p = walletProto.getTransaction(0);
assertEquals(0, t1p.getBlockHashCount());
assertArrayEquals(t1.getHash().getBytes(), t1p.getHash().toByteArray());
assertEquals(Protos.Transaction.Pool.PENDING, t1p.getPool());
assertFalse(t1p.hasLockTime());
assertFalse(t1p.getTransactionInput(0).hasSequence());
assertArrayEquals(
t1.getInputs().get(0).getOutpoint().getHash().getBytes(),
t1p.getTransactionInput(0).getTransactionOutPointHash().toByteArray());
assertEquals(0, t1p.getTransactionInput(0).getTransactionOutPointIndex());
assertEquals(t1p.getTransactionOutput(0).getValue(), v1.value);
}
@Test
public void raiseFeeTx() throws Exception {
// Check basic tx serialization.
Coin v1 = COIN;
Transaction t1 = createFakeTx(params, v1, myAddress);
t1.setPurpose(Purpose.RAISE_FEE);
myWallet.receivePending(t1, null);
Wallet wallet1 = roundTrip(myWallet);
Transaction t1copy = wallet1.getTransaction(t1.getHash());
assertEquals(Purpose.RAISE_FEE, t1copy.getPurpose());
}
@Test
public void doubleSpend() throws Exception {
// Check that we can serialize double spends correctly, as this is a slightly tricky case.
FakeTxBuilder.DoubleSpends doubleSpends =
FakeTxBuilder.createFakeDoubleSpendTxns(params, myAddress);
// t1 spends to our wallet.
myWallet.receivePending(doubleSpends.t1, null);
// t2 rolls back t1 and spends somewhere else.
myWallet.receiveFromBlock(doubleSpends.t2, null, BlockChain.NewBlockType.BEST_CHAIN, 0);
Wallet wallet1 = roundTrip(myWallet);
assertEquals(1, wallet1.getTransactions(true).size());
Transaction t1 = wallet1.getTransaction(doubleSpends.t1.getHash());
assertEquals(ConfidenceType.DEAD, t1.getConfidence().getConfidenceType());
assertEquals(Coin.ZERO, wallet1.getBalance());
// TODO: Wallet should store overriding transactions even if they are not wallet-relevant.
// assertEquals(doubleSpends.t2, t1.getConfidence().getOverridingTransaction());
}
@Test
public void testKeys() throws Exception {
for (int i = 0; i < 20; i++) {
myKey = new ECKey();
myAddress = myKey.toAddress(params);
myWallet = new Wallet(params);
myWallet.importKey(myKey);
Wallet wallet1 = roundTrip(myWallet);
assertArrayEquals(
myKey.getPubKey(), wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPubKey());
assertArrayEquals(
myKey.getPrivKeyBytes(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPrivKeyBytes());
}
}
@Test
public void testLastBlockSeenHash() throws Exception {
// Test the lastBlockSeenHash field works.
// LastBlockSeenHash should be empty if never set.
Wallet wallet = new Wallet(params);
Protos.Wallet walletProto = new WalletProtobufSerializer().walletToProto(wallet);
ByteString lastSeenBlockHash = walletProto.getLastSeenBlockHash();
assertTrue(lastSeenBlockHash.isEmpty());
// Create a block.
Block block = params.getDefaultSerializer().makeBlock(BlockTest.blockBytes);
Sha256Hash blockHash = block.getHash();
wallet.setLastBlockSeenHash(blockHash);
wallet.setLastBlockSeenHeight(1);
// Roundtrip the wallet and check it has stored the blockHash.
Wallet wallet1 = roundTrip(wallet);
assertEquals(blockHash, wallet1.getLastBlockSeenHash());
assertEquals(1, wallet1.getLastBlockSeenHeight());
// Test the Satoshi genesis block (hash of all zeroes) is roundtripped ok.
Block genesisBlock = MainNetParams.get().getGenesisBlock();
wallet.setLastBlockSeenHash(genesisBlock.getHash());
Wallet wallet2 = roundTrip(wallet);
assertEquals(genesisBlock.getHash(), wallet2.getLastBlockSeenHash());
}
@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());
}
private static Wallet roundTrip(Wallet wallet) throws Exception {
ByteArrayOutputStream output = new ByteArrayOutputStream();
new WalletProtobufSerializer().writeWallet(wallet, output);
ByteArrayInputStream test = new ByteArrayInputStream(output.toByteArray());
assertTrue(WalletProtobufSerializer.isWallet(test));
ByteArrayInputStream input = new ByteArrayInputStream(output.toByteArray());
return new WalletProtobufSerializer().readWallet(input);
}
@Test
public void testRoundTripNormalWallet() throws Exception {
Wallet wallet1 = roundTrip(myWallet);
assertEquals(0, wallet1.getTransactions(true).size());
assertEquals(Coin.ZERO, wallet1.getBalance());
assertArrayEquals(
myKey.getPubKey(), wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPubKey());
assertArrayEquals(
myKey.getPrivKeyBytes(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getPrivKeyBytes());
assertEquals(
myKey.getCreationTimeSeconds(),
wallet1.findKeyFromPubHash(myKey.getPubKeyHash()).getCreationTimeSeconds());
}
@Test
public void testRoundTripMarriedWallet() throws Exception {
// create 2-of-2 married wallet
myWallet = new Wallet(params);
final DeterministicKeyChain partnerChain = new DeterministicKeyChain(new SecureRandom());
DeterministicKey partnerKey =
DeterministicKey.deserializeB58(
null, partnerChain.getWatchingKey().serializePubB58(params), params);
MarriedKeyChain chain =
MarriedKeyChain.builder()
.random(new SecureRandom())
.followingKeys(partnerKey)
.threshold(2)
.build();
myWallet.addAndActivateHDChain(chain);
myAddress = myWallet.currentAddress(KeyChain.KeyPurpose.RECEIVE_FUNDS);
Wallet wallet1 = roundTrip(myWallet);
assertEquals(0, wallet1.getTransactions(true).size());
assertEquals(Coin.ZERO, wallet1.getBalance());
assertEquals(2, wallet1.getActiveKeyChain().getSigsRequiredToSpend());
assertEquals(myAddress, wallet1.currentAddress(KeyChain.KeyPurpose.RECEIVE_FUNDS));
}
@Test
public void coinbaseTxns() throws Exception {
// Covers issue 420 where the outpoint index of a coinbase tx input was being mis-serialized.
Block b =
params
.getGenesisBlock()
.createNextBlockWithCoinbase(
Block.BLOCK_VERSION_GENESIS,
myKey.getPubKey(),
FIFTY_COINS,
Block.BLOCK_HEIGHT_GENESIS);
Transaction coinbase = b.getTransactions().get(0);
assertTrue(coinbase.isCoinBase());
BlockChain chain = new BlockChain(params, myWallet, new MemoryBlockStore(params));
assertTrue(chain.add(b));
// Wallet now has a coinbase tx in it.
assertEquals(1, myWallet.getTransactions(true).size());
assertTrue(myWallet.getTransaction(coinbase.getHash()).isCoinBase());
Wallet wallet2 = roundTrip(myWallet);
assertEquals(1, wallet2.getTransactions(true).size());
assertTrue(wallet2.getTransaction(coinbase.getHash()).isCoinBase());
}
@Test
public void tags() throws Exception {
myWallet.setTag("foo", ByteString.copyFromUtf8("bar"));
assertEquals("bar", myWallet.getTag("foo").toStringUtf8());
myWallet = roundTrip(myWallet);
assertEquals("bar", myWallet.getTag("foo").toStringUtf8());
}
@Test
public void extensions() throws Exception {
myWallet.addExtension(new FooWalletExtension("com.whatever.required", true));
Protos.Wallet proto = new WalletProtobufSerializer().walletToProto(myWallet);
// Initial extension is mandatory: try to read it back into a wallet that doesn't know about it.
try {
new WalletProtobufSerializer().readWallet(params, null, proto);
fail();
} catch (UnreadableWalletException e) {
assertTrue(e.getMessage().contains("mandatory"));
}
Wallet wallet =
new WalletProtobufSerializer()
.readWallet(
params,
new WalletExtension[] {new FooWalletExtension("com.whatever.required", true)},
proto);
assertTrue(wallet.getExtensions().containsKey("com.whatever.required"));
// Non-mandatory extensions are ignored if the wallet doesn't know how to read them.
Wallet wallet2 = new Wallet(params);
wallet2.addExtension(new FooWalletExtension("com.whatever.optional", false));
Protos.Wallet proto2 = new WalletProtobufSerializer().walletToProto(wallet2);
Wallet wallet5 = new WalletProtobufSerializer().readWallet(params, null, proto2);
assertEquals(0, wallet5.getExtensions().size());
}
@Test
public void extensionsWithError() throws Exception {
WalletExtension extension =
new WalletExtension() {
@Override
public String getWalletExtensionID() {
return "test";
}
@Override
public boolean isWalletExtensionMandatory() {
return false;
}
@Override
public byte[] serializeWalletExtension() {
return new byte[0];
}
@Override
public void deserializeWalletExtension(Wallet containingWallet, byte[] data)
throws Exception {
throw new NullPointerException(); // Something went wrong!
}
};
myWallet.addExtension(extension);
Protos.Wallet proto = new WalletProtobufSerializer().walletToProto(myWallet);
Wallet wallet =
new WalletProtobufSerializer().readWallet(params, new WalletExtension[] {extension}, proto);
assertEquals(0, wallet.getExtensions().size());
}
@Test(expected = UnreadableWalletException.FutureVersion.class)
public void versions() throws Exception {
Protos.Wallet.Builder proto =
Protos.Wallet.newBuilder(new WalletProtobufSerializer().walletToProto(myWallet));
proto.setVersion(2);
new WalletProtobufSerializer().readWallet(params, null, proto.build());
}
}