/*
* Copyright 2012 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.feathercoin.core;
import com.google.feathercoin.core.TransactionConfidence.ConfidenceType;
import com.google.feathercoin.store.MemoryBlockStore;
import com.google.feathercoin.utils.BriefLogFormatter;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.math.BigInteger;
import java.util.ArrayList;
import static org.junit.Assert.*;
public class ChainSplitTest {
private static final Logger log = LoggerFactory.getLogger(ChainSplitTest.class);
private NetworkParameters unitTestParams;
private Wallet wallet;
private BlockChain chain;
private Address coinsTo;
private Address coinsTo2;
private Address someOtherGuy;
@Before
public void setUp() throws Exception {
BriefLogFormatter.init();
unitTestParams = NetworkParameters.unitTests();
wallet = new Wallet(unitTestParams);
wallet.addKey(new ECKey());
wallet.addKey(new ECKey());
chain = new BlockChain(unitTestParams, wallet, new MemoryBlockStore(unitTestParams));
coinsTo = wallet.keychain.get(0).toAddress(unitTestParams);
coinsTo2 = wallet.keychain.get(1).toAddress(unitTestParams);
someOtherGuy = new ECKey().toAddress(unitTestParams);
}
@Test
public void testForking1() throws Exception {
// Check that if the block chain forks, we end up using the right chain. Only tests inbound transactions
// (receiving coins). Checking that we understand reversed spends is in testForking2.
final boolean[] reorgHappened = new boolean[1];
final int[] walletChanged = new int[1];
wallet.addEventListener(new AbstractWalletEventListener() {
@Override
public void onReorganize(Wallet wallet) {
reorgHappened[0] = true;
}
@Override
public void onWalletChanged(Wallet wallet) {
walletChanged[0]++;
}
});
// Start by building a couple of blocks on top of the genesis block.
Block b1 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
Block b2 = b1.createNextBlock(coinsTo);
assertTrue(chain.add(b1));
assertTrue(chain.add(b2));
assertFalse(reorgHappened[0]);
assertEquals(2, walletChanged[0]);
// We got two blocks which generated 50 coins each, to us.
assertEquals("100.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
// We now have the following chain:
// genesis -> b1 -> b2
//
// so fork like this:
//
// genesis -> b1 -> b2
// \-> b3
//
// Nothing should happen at this point. We saw b2 first so it takes priority.
Block b3 = b1.createNextBlock(someOtherGuy);
assertTrue(chain.add(b3));
assertFalse(reorgHappened[0]); // No re-org took place.
assertEquals(2, walletChanged[0]);
assertEquals("100.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
// Now we add another block to make the alternative chain longer.
assertTrue(chain.add(b3.createNextBlock(someOtherGuy)));
assertTrue(reorgHappened[0]); // Re-org took place.
assertEquals(3, walletChanged[0]);
reorgHappened[0] = false;
//
// genesis -> b1 -> b2
// \-> b3 -> b4
//
// We lost some coins! b2 is no longer a part of the best chain so our available balance should drop to 50.
assertEquals("50.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
// ... and back to the first chain.
Block b5 = b2.createNextBlock(coinsTo);
Block b6 = b5.createNextBlock(coinsTo);
assertTrue(chain.add(b5));
assertTrue(chain.add(b6));
//
// genesis -> b1 -> b2 -> b5 -> b6
// \-> b3 -> b4
//
assertTrue(reorgHappened[0]);
assertEquals(4, walletChanged[0]);
assertEquals("200.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
}
@Test
public void testForking2() throws Exception {
// Check that if the chain forks and new coins are received in the alternate chain our balance goes up
// after the re-org takes place.
Block b1 = unitTestParams.genesisBlock.createNextBlock(someOtherGuy);
Block b2 = b1.createNextBlock(someOtherGuy);
assertTrue(chain.add(b1));
assertTrue(chain.add(b2));
// genesis -> b1 -> b2
// \-> b3 -> b4
assertEquals(BigInteger.ZERO, wallet.getBalance());
Block b3 = b1.createNextBlock(coinsTo);
Block b4 = b3.createNextBlock(someOtherGuy);
assertTrue(chain.add(b3));
assertEquals(BigInteger.ZERO, wallet.getBalance());
assertTrue(chain.add(b4));
assertEquals("50.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
}
@Test
public void testForking3() throws Exception {
// Check that we can handle our own spends being rolled back by a fork.
Block b1 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
chain.add(b1);
assertEquals("50.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
Address dest = new ECKey().toAddress(unitTestParams);
Transaction spend = wallet.createSend(dest, Utils.toNanoCoins(10, 0));
wallet.commitTx(spend);
// Waiting for confirmation ...
assertEquals(BigInteger.ZERO, wallet.getBalance());
Block b2 = b1.createNextBlock(someOtherGuy);
b2.addTransaction(spend);
b2.solve();
chain.add(b2);
assertEquals(Utils.toNanoCoins(40, 0), wallet.getBalance());
// genesis -> b1 (receive coins) -> b2 (spend coins)
// \-> b3 -> b4
Block b3 = b1.createNextBlock(someOtherGuy);
Block b4 = b3.createNextBlock(someOtherGuy);
chain.add(b3);
chain.add(b4);
// b4 causes a re-org that should make our spend go inactive. Because the inputs are already spent our
// available balance drops to zero again.
assertEquals(BigInteger.ZERO, wallet.getBalance(Wallet.BalanceType.AVAILABLE));
// We estimate that it'll make it back into the block chain (we know we won't double spend).
// assertEquals(Utils.toNanoCoins(40, 0), wallet.getBalance(Wallet.BalanceType.ESTIMATED));
}
@Test
public void testForking4() throws Exception {
// Check that we can handle external spends on an inactive chain becoming active. An external spend is where
// we see a transaction that spends our own coins but we did not broadcast it ourselves. This happens when
// keys are being shared between wallets.
Block b1 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
chain.add(b1);
assertEquals("50.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
Address dest = new ECKey().toAddress(unitTestParams);
Transaction spend = wallet.createSend(dest, Utils.toNanoCoins(50, 0));
// We do NOT confirm the spend here. That means it's not considered to be pending because createSend is
// stateless. For our purposes it is as if some other program with our keys created the tx.
//
// genesis -> b1 (receive 50) --> b2
// \-> b3 (external spend) -> b4
Block b2 = b1.createNextBlock(someOtherGuy);
chain.add(b2);
Block b3 = b1.createNextBlock(someOtherGuy);
b3.addTransaction(spend);
b3.solve();
chain.add(b3);
// The external spend is not active yet.
assertEquals(Utils.toNanoCoins(50, 0), wallet.getBalance());
Block b4 = b3.createNextBlock(someOtherGuy);
chain.add(b4);
// The external spend is now active.
assertEquals(Utils.toNanoCoins(0, 0), wallet.getBalance());
}
@Test
public void testForking5() throws Exception {
// Test the standard case in which a block containing identical transactions appears on a side chain.
Block b1 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
chain.add(b1);
assertEquals("50.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
// genesis -> b1
// -> b2
Block b2 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
Transaction b2coinbase = b2.transactions.get(0);
b2.transactions.clear();
b2.addTransaction(b2coinbase);
b2.addTransaction(b1.transactions.get(1));
b2.solve();
chain.add(b2);
assertEquals("50.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
assertTrue(wallet.isConsistent());
}
@Test
public void testForking6() throws Exception {
// Test the case in which a side chain block contains a tx, and then it appears in the main chain too.
Block b1 = unitTestParams.genesisBlock.createNextBlock(someOtherGuy);
chain.add(b1);
// genesis -> b1
// -> b2
Block b2 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
chain.add(b2);
assertEquals(BigInteger.ZERO, wallet.getBalance());
// genesis -> b1 -> b3
// -> b2
Block b3 = b1.createNextBlock(someOtherGuy);
b3.addTransaction(b2.transactions.get(1));
b3.solve();
chain.add(b3);
assertEquals("50.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
}
@Test
public void testDoubleSpendOnFork() throws Exception {
// Check what happens when a re-org happens and one of our confirmed transactions becomes invalidated by a
// double spend on the new best chain.
final boolean[] eventCalled = new boolean[1];
wallet.addEventListener(new AbstractWalletEventListener() {
@Override
public void onTransactionConfidenceChanged(Wallet wallet, Transaction tx) {
super.onTransactionConfidenceChanged(wallet, tx);
if (tx.getConfidence().getConfidenceType() == TransactionConfidence.ConfidenceType.DEAD)
eventCalled[0] = true;
}
});
Block b1 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
chain.add(b1);
Transaction t1 = wallet.createSend(someOtherGuy, Utils.toNanoCoins(10, 0));
Address yetAnotherGuy = new ECKey().toAddress(unitTestParams);
Transaction t2 = wallet.createSend(yetAnotherGuy, Utils.toNanoCoins(20, 0));
wallet.commitTx(t1);
// Receive t1 as confirmed by the network.
Block b2 = b1.createNextBlock(new ECKey().toAddress(unitTestParams));
b2.addTransaction(t1);
b2.solve();
chain.add(b2);
// Now we make a double spend become active after a re-org.
Block b3 = b1.createNextBlock(new ECKey().toAddress(unitTestParams));
b3.addTransaction(t2);
b3.solve();
chain.add(b3); // Side chain.
Block b4 = b3.createNextBlock(new ECKey().toAddress(unitTestParams));
chain.add(b4); // New best chain.
// Should have seen a double spend.
assertTrue(eventCalled[0]);
assertEquals(Utils.toNanoCoins(30, 0), wallet.getBalance());
}
@Test
public void testDoubleSpendOnForkPending() throws Exception {
// Check what happens when a re-org happens and one of our UNconfirmed transactions becomes invalidated by a
// double spend on the new best chain.
final Transaction[] eventDead = new Transaction[1];
final Transaction[] eventReplacement = new Transaction[1];
wallet.addEventListener(new AbstractWalletEventListener() {
@Override
public void onTransactionConfidenceChanged(Wallet wallet, Transaction tx) {
super.onTransactionConfidenceChanged(wallet, tx);
if (tx.getConfidence().getConfidenceType() ==
TransactionConfidence.ConfidenceType.DEAD) {
eventDead[0] = tx;
eventReplacement[0] = tx.getConfidence().getOverridingTransaction();
}
}
});
// Start with 50 coins.
Block b1 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
chain.add(b1);
Transaction t1 = wallet.createSend(someOtherGuy, Utils.toNanoCoins(10, 0));
Address yetAnotherGuy = new ECKey().toAddress(unitTestParams);
Transaction t2 = wallet.createSend(yetAnotherGuy, Utils.toNanoCoins(20, 0));
wallet.commitTx(t1);
// t1 is still pending ...
Block b2 = b1.createNextBlock(new ECKey().toAddress(unitTestParams));
chain.add(b2);
assertEquals(Utils.toNanoCoins(0, 0), wallet.getBalance());
assertEquals(Utils.toNanoCoins(40, 0), wallet.getBalance(Wallet.BalanceType.ESTIMATED));
// Now we make a double spend become active after a re-org.
// genesis -> b1 -> b2 [t1 pending]
// \-> b3 (t2) -> b4
Block b3 = b1.createNextBlock(new ECKey().toAddress(unitTestParams));
b3.addTransaction(t2);
b3.solve();
chain.add(b3); // Side chain.
Block b4 = b3.createNextBlock(new ECKey().toAddress(unitTestParams));
chain.add(b4); // New best chain.
// Should have seen a double spend against the pending pool.
assertEquals(t1, eventDead[0]);
assertEquals(t2, eventReplacement[0]);
assertEquals(Utils.toNanoCoins(30, 0), wallet.getBalance());
// ... and back to our own parallel universe.
Block b5 = b2.createNextBlock(new ECKey().toAddress(unitTestParams));
chain.add(b5);
Block b6 = b5.createNextBlock(new ECKey().toAddress(unitTestParams));
chain.add(b6);
// genesis -> b1 -> b2 -> b5 -> b6 [t1 pending]
// \-> b3 [t2 inactive] -> b4
assertEquals(Utils.toNanoCoins(0, 0), wallet.getBalance());
assertEquals(Utils.toNanoCoins(40, 0), wallet.getBalance(Wallet.BalanceType.ESTIMATED));
}
@Test
public void txConfidenceLevels() throws Exception {
// Check that as the chain forks and re-orgs, the confidence data associated with each transaction is
// maintained correctly.
final ArrayList<Transaction> txns = new ArrayList<Transaction>(3);
wallet.addEventListener(new AbstractWalletEventListener() {
@Override
public void onCoinsReceived(Wallet wallet, Transaction tx, BigInteger prevBalance, BigInteger newBalance) {
txns.add(tx);
}
});
// Start by building three blocks on top of the genesis block. All send to us.
Block b1 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
BigInteger work1 = b1.getWork();
Block b2 = b1.createNextBlock(coinsTo2);
BigInteger work2 = b2.getWork();
Block b3 = b2.createNextBlock(coinsTo2);
BigInteger work3 = b3.getWork();
assertTrue(chain.add(b1));
assertTrue(chain.add(b2));
assertTrue(chain.add(b3));
// Check the transaction confidence levels are correct.
assertEquals(3, txns.size());
assertEquals(1, txns.get(0).getConfidence().getAppearedAtChainHeight());
assertEquals(2, txns.get(1).getConfidence().getAppearedAtChainHeight());
assertEquals(3, txns.get(2).getConfidence().getAppearedAtChainHeight());
assertEquals(3, txns.get(0).getConfidence().getDepthInBlocks());
assertEquals(2, txns.get(1).getConfidence().getDepthInBlocks());
assertEquals(1, txns.get(2).getConfidence().getDepthInBlocks());
assertEquals(work1.add(work2).add(work3), txns.get(0).getConfidence().getWorkDone());
assertEquals(work2.add(work3), txns.get(1).getConfidence().getWorkDone());
assertEquals(work3, txns.get(2).getConfidence().getWorkDone());
// We now have the following chain:
// genesis -> b1 -> b2 -> b3
//
// so fork like this:
//
// genesis -> b1 -> b2 -> b3
// \-> b4 -> b5
//
// Nothing should happen at this point. We saw b2 and b3 first so it takes priority.
Block b4 = b1.createNextBlock(someOtherGuy);
BigInteger work4 = b4.getWork();
Block b5 = b4.createNextBlock(someOtherGuy);
BigInteger work5 = b5.getWork();
assertTrue(chain.add(b4));
assertTrue(chain.add(b5));
assertEquals(3, txns.size());
assertEquals(1, txns.get(0).getConfidence().getAppearedAtChainHeight());
assertEquals(2, txns.get(1).getConfidence().getAppearedAtChainHeight());
assertEquals(3, txns.get(2).getConfidence().getAppearedAtChainHeight());
assertEquals(3, txns.get(0).getConfidence().getDepthInBlocks());
assertEquals(2, txns.get(1).getConfidence().getDepthInBlocks());
assertEquals(1, txns.get(2).getConfidence().getDepthInBlocks());
assertEquals(work1.add(work2).add(work3), txns.get(0).getConfidence().getWorkDone());
assertEquals(work2.add(work3), txns.get(1).getConfidence().getWorkDone());
assertEquals(work3, txns.get(2).getConfidence().getWorkDone());
// Now we add another block to make the alternative chain longer.
Block b6 = b5.createNextBlock(someOtherGuy);
BigInteger work6 = b6.getWork();
assertTrue(chain.add(b6));
//
// genesis -> b1 -> b2 -> b3
// \-> b4 -> b5 -> b6
//
assertEquals(3, txns.size());
assertEquals(1, txns.get(0).getConfidence().getAppearedAtChainHeight());
assertEquals(4, txns.get(0).getConfidence().getDepthInBlocks());
assertEquals(work1.add(work4).add(work5).add(work6), txns.get(0).getConfidence().getWorkDone());
// Transaction 1 (in block b2) is now on a side chain.
assertEquals(TransactionConfidence.ConfidenceType.NOT_IN_BEST_CHAIN, txns.get(1).getConfidence().getConfidenceType());
try {
txns.get(1).getConfidence().getAppearedAtChainHeight();
fail();
} catch (IllegalStateException e) {}
try {
txns.get(1).getConfidence().getDepthInBlocks();
fail();
} catch (IllegalStateException e) {}
try {
txns.get(1).getConfidence().getWorkDone();
fail();
} catch (IllegalStateException e) {}
// ... and back to the first chain.
Block b7 = b3.createNextBlock(coinsTo);
BigInteger work7 = b7.getWork();
Block b8 = b7.createNextBlock(coinsTo);
BigInteger work8 = b7.getWork();
assertTrue(chain.add(b7));
assertTrue(chain.add(b8));
//
// genesis -> b1 -> b2 -> b3 -> b7 -> b8
// \-> b4 -> b5 -> b6
//
// This should be enabled, once we figure out the best way to inform the user of how the wallet is changing
// during the re-org.
//assertEquals(5, txns.size());
assertEquals(1, txns.get(0).getConfidence().getAppearedAtChainHeight());
assertEquals(2, txns.get(1).getConfidence().getAppearedAtChainHeight());
assertEquals(3, txns.get(2).getConfidence().getAppearedAtChainHeight());
assertEquals(5, txns.get(0).getConfidence().getDepthInBlocks());
assertEquals(4, txns.get(1).getConfidence().getDepthInBlocks());
assertEquals(3, txns.get(2).getConfidence().getDepthInBlocks());
BigInteger newWork1 = work1.add(work2).add(work3).add(work7).add(work8);
assertEquals(newWork1, txns.get(0).getConfidence().getWorkDone());
BigInteger newWork2 = work2.add(work3).add(work7).add(work8);
assertEquals(newWork2, txns.get(1).getConfidence().getWorkDone());
BigInteger newWork3 = work3.add(work7).add(work8);
assertEquals(newWork3, txns.get(2).getConfidence().getWorkDone());
assertEquals("250.00", Utils.feathercoinValueToFriendlyString(wallet.getBalance()));
// Now add two more blocks that don't send coins to us. Despite being irrelevant the wallet should still update.
Block b9 = b8.createNextBlock(someOtherGuy);
Block b10 = b9.createNextBlock(someOtherGuy);
chain.add(b9);
chain.add(b10);
BigInteger extraWork = b9.getWork().add(b10.getWork());
assertEquals(7, txns.get(0).getConfidence().getDepthInBlocks());
assertEquals(6, txns.get(1).getConfidence().getDepthInBlocks());
assertEquals(5, txns.get(2).getConfidence().getDepthInBlocks());
assertEquals(newWork1.add(extraWork), txns.get(0).getConfidence().getWorkDone());
assertEquals(newWork2.add(extraWork), txns.get(1).getConfidence().getWorkDone());
assertEquals(newWork3.add(extraWork), txns.get(2).getConfidence().getWorkDone());
}
@Test
public void coinbaseDeath() throws Exception {
// Check that a coinbase tx is marked as dead after a reorg rather than inactive as normal non-double-spent transactions would be.
// Also check that a dead coinbase on a sidechain is resurrected if the sidechain becomes the best chain once more.
final ArrayList<Transaction> txns = new ArrayList<Transaction>(3);
wallet.addEventListener(new AbstractWalletEventListener() {
@Override
public void onCoinsReceived(Wallet wallet, Transaction tx, BigInteger prevBalance, BigInteger newBalance) {
txns.add(tx);
}
});
// Start by building three blocks on top of the genesis block.
// The first block contains a normal transaction that spends to coinTo.
// The second block contains a coinbase transaction that spends to coinTo2.
// The third block contains a normal transaction that spends to coinTo.
Block b1 = unitTestParams.genesisBlock.createNextBlock(coinsTo);
Block b2 = b1.createNextBlockWithCoinbase(wallet.keychain.get(1).getPubKey());
Block b3 = b2.createNextBlock(coinsTo);
log.debug("Adding block b1");
assertTrue(chain.add(b1));
log.debug("Adding block b2");
assertTrue(chain.add(b2));
log.debug("Adding block b3");
assertTrue(chain.add(b3));
// We now have the following chain:
// genesis -> b1 -> b2 -> b3
//
// Check we have seen the three transactions.
assertEquals(3, txns.size());
// Check the coinbase transaction is building and in the unspent pool only.
assertEquals(ConfidenceType.BUILDING, txns.get(1).getConfidence().getConfidenceType());
assertTrue(!wallet.pending.containsKey(txns.get(1).getHash()));
assertTrue(wallet.unspent.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.spent.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.inactive.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.dead.containsKey(txns.get(1).getHash()));
// Fork like this:
//
// genesis -> b1 -> b2 -> b3
// \-> b4 -> b5 -> b6
//
// The b4/ b5/ b6 is now the best chain
Block b4 = b1.createNextBlock(someOtherGuy);
Block b5 = b4.createNextBlock(someOtherGuy);
Block b6 = b5.createNextBlock(someOtherGuy);
log.debug("Adding block b4");
assertTrue(chain.add(b4));
log.debug("Adding block b5");
assertTrue(chain.add(b5));
log.debug("Adding block b6");
assertTrue(chain.add(b6));
// Transaction 1 (in block b2) is now on a side chain and should have confidence type of dead and be in the dead pool only
assertEquals(TransactionConfidence.ConfidenceType.DEAD, txns.get(1).getConfidence().getConfidenceType());
assertTrue(!wallet.pending.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.unspent.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.spent.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.inactive.containsKey(txns.get(1).getHash()));
assertTrue(wallet.dead.containsKey(txns.get(1).getHash()));
// ... and back to the first chain.
Block b7 = b3.createNextBlock(coinsTo);
Block b8 = b7.createNextBlock(coinsTo);
log.debug("Adding block b7");
assertTrue(chain.add(b7));
log.debug("Adding block b8");
assertTrue(chain.add(b8));
//
// genesis -> b1 -> b2 -> b3 -> b7 -> b8
// \-> b4 -> b5 -> b6
//
// The coinbase transaction should now have confidence type of building once more and in the unspent pool only.
assertEquals(TransactionConfidence.ConfidenceType.BUILDING, txns.get(1).getConfidence().getConfidenceType());
assertTrue(!wallet.pending.containsKey(txns.get(1).getHash()));
assertTrue(wallet.unspent.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.spent.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.inactive.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.dead.containsKey(txns.get(1).getHash()));
// ... make the side chain dominant again.
Block b9 = b6.createNextBlock(coinsTo);
Block b10 = b9.createNextBlock(coinsTo);
log.debug("Adding block b9");
assertTrue(chain.add(b9));
log.debug("Adding block b10");
assertTrue(chain.add(b10));
//
// genesis -> b1 -> b2 -> b3 -> b7 -> b8
// \-> b4 -> b5 -> b6 -> b9 -> b10
//
// The coinbase transaction should now have the confidence type of dead and be in the dead pool only.
assertEquals(TransactionConfidence.ConfidenceType.DEAD, txns.get(1).getConfidence().getConfidenceType());
assertTrue(!wallet.pending.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.unspent.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.spent.containsKey(txns.get(1).getHash()));
assertTrue(!wallet.inactive.containsKey(txns.get(1).getHash()));
assertTrue(wallet.dead.containsKey(txns.get(1).getHash()));
}
}