public void TestShorterChainWins()
{
using (var daemon = new TestDaemon())
{
// add some simple blocks
var block1 = daemon.MineAndAddEmptyBlock();
var block2 = daemon.MineAndAddEmptyBlock();
var block3a = daemon.MineAndAddEmptyBlock();
var block4a = daemon.MineAndAddEmptyBlock();
var block5a = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(5, block5a.Hash);
// create a split with 3b, but do more work than current height 5 chain
var testBlocksFork = daemon.TestBlocks.Fork(3);
daemon.ChainParams.HighestTarget = UnitTestParams.Target2;
var block3b = daemon.AddBlock(testBlocksFork.MineAndAddEmptyBlock(UnitTestParams.Target2));
// check that blockchain reorganized to shorter chain
daemon.WaitForUpdate();
daemon.AssertAtBlock(3, block3b.Hash);
}
}
public void TestDoubleSpend()
{
using (var daemon = new TestDaemon())
{
// create a new keypair to spend to
var toKeyPair = daemon.TxManager.CreateKeyPair();
var toPrivateKey = toKeyPair.Item1;
var toPublicKey = toKeyPair.Item2;
// create a new keypair to double spend to
var toKeyPairBad = daemon.TxManager.CreateKeyPair();
var toPrivateKeyBad = toKeyPair.Item1;
var toPublicKeyBad = toKeyPair.Item2;
// add some simple blocks
var block1 = daemon.MineAndAddEmptyBlock();
var block2 = daemon.MineAndAddEmptyBlock();
// add some blocks so coinbase is mature to spend
Block lastBlock = null;
for (var i = 0; i < 100; i++)
{
lastBlock = daemon.MineAndAddEmptyBlock();
}
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(102, lastBlock.Hash);
// spend block 2's coinbase in block 3
var spendTx = daemon.TxManager.CreateSpendTransaction(block2.Transactions[0], 0, (byte)ScriptHashType.SIGHASH_ALL, 50 * SATOSHI_PER_BTC, daemon.CoinbasePrivateKey, daemon.CoinbasePublicKey, toPublicKey);
var block3Unmined = daemon.CreateEmptyBlock(lastBlock.Hash)
.CreateWithAddedTransactions(spendTx);
var block3 = daemon.MineAndAddBlock(block3Unmined);
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(103, block3.Hash);
// attempt to spend block 2's coinbase again in block 4
var doubleSpendTx = daemon.TxManager.CreateSpendTransaction(block2.Transactions[0], 0, (byte)ScriptHashType.SIGHASH_ALL, 50 * SATOSHI_PER_BTC, daemon.CoinbasePrivateKey, daemon.CoinbasePublicKey, toPublicKeyBad);
var block4BadUmined = daemon.CreateEmptyBlock(block3.Hash)
.CreateWithAddedTransactions(doubleSpendTx);
var block4Bad = daemon.MineAndAddBlock(block4BadUmined);
// check that bad block wasn't added
daemon.WaitForUpdate();
daemon.AssertAtBlock(103, block3.Hash);
// add a simple block
daemon.TestBlocks.Rollback(1);
var block4Good = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(104, block4Good.Hash);
}
}
public void TestDoubleSpend()
{
using (var daemon = new TestDaemon())
{
// create a new keypair to spend to
var toKeyPair = daemon.TxManager.CreateKeyPair();
var toPrivateKey = toKeyPair.Item1;
var toPublicKey = toKeyPair.Item2;
// create a new keypair to double spend to
var toKeyPairBad = daemon.TxManager.CreateKeyPair();
var toPrivateKeyBad = toKeyPair.Item1;
var toPublicKeyBad = toKeyPair.Item2;
// add some simple blocks
var block1 = daemon.MineAndAddEmptyBlock();
var block2 = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(2, block2.Hash);
// spend block 2's coinbase in block 3
var spendTx = daemon.TxManager.CreateSpendTransaction(block2.Transactions[0], 0, (byte)ScriptHashType.SIGHASH_ALL, 50 * SATOSHI_PER_BTC, daemon.CoinbasePrivateKey, daemon.CoinbasePublicKey, toPublicKey);
var block3Unmined = daemon.CreateEmptyBlock(block2.Hash)
.WithAddedTransactions(spendTx);
var block3 = daemon.MineAndAddBlock(block3Unmined);
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(3, block3.Hash);
// attempt to spend block 2's coinbase again in block 4
var doubleSpendTx = daemon.TxManager.CreateSpendTransaction(block2.Transactions[0], 0, (byte)ScriptHashType.SIGHASH_ALL, 50 * SATOSHI_PER_BTC, daemon.CoinbasePrivateKey, daemon.CoinbasePublicKey, toPublicKeyBad);
var block4BadUmined = daemon.CreateEmptyBlock(block3.Hash)
.WithAddedTransactions(doubleSpendTx);
var block4Bad = daemon.MineAndAddBlock(block4BadUmined);
// check that bad block wasn't added
daemon.WaitForUpdate();
daemon.AssertAtBlock(3, block3.Hash);
// add a simple block
daemon.TestBlocks.Rollback(1);
var block4Good = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(4, block4Good.Hash);
}
}
public void TestAddSingleBlock()
{
using (var daemon = new TestDaemon())
{
var block1 = daemon.MineAndAddEmptyBlock();
daemon.WaitForUpdate();
daemon.AssertAtBlock(1, block1.Hash);
}
}
public void TestAddSingleBlock()
{
using (var daemon = new TestDaemon())
{
var block1 = daemon.MineAndAddEmptyBlock();
daemon.WaitForUpdate();
daemon.AssertAtBlock(1, block1.Hash);
}
}
public void TestSimpleSpend()
{
using (var daemon = new TestDaemon())
{
// create a new keypair to spend to
var toKeyPair = daemon.TxManager.CreateKeyPair();
var toPrivateKey = toKeyPair.Item1;
var toPublicKey = toKeyPair.Item2;
// add some simple blocks
var block1 = daemon.MineAndAddEmptyBlock();
var block2 = daemon.MineAndAddEmptyBlock();
// add some blocks so coinbase is mature to spend
Block lastBlock = null;
for (var i = 0; i < 100; i++)
lastBlock = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(102, lastBlock.Hash);
// attempt to spend block 2's coinbase in block 3
var spendTx = daemon.TxManager.CreateSpendTransaction(block2.Transactions[0], 0, (byte)ScriptHashType.SIGHASH_ALL, 50 * SATOSHI_PER_BTC, daemon.CoinbasePrivateKey, daemon.CoinbasePublicKey, toPublicKey);
var block3Unmined = daemon.CreateEmptyBlock(lastBlock.Hash)
.CreateWithAddedTransactions(spendTx);
var block3 = daemon.MineAndAddBlock(block3Unmined);
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(103, block3.Hash);
// add a simple block
var block4 = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(104, block4.Hash);
}
}
public void TestInsufficientBalance()
{
using (var daemon = new TestDaemon())
{
// create a new keypair to spend to
var toKeyPair = daemon.TxManager.CreateKeyPair();
var toPrivateKey = toKeyPair.Item1;
var toPublicKey = toKeyPair.Item2;
// add some simple blocks
var block1 = daemon.MineAndAddEmptyBlock();
var block2 = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(2, block2.Hash);
// attempt to spend block 2's coinbase in block 3, using twice its value
var spendTx = daemon.TxManager.CreateSpendTransaction(block2.Transactions[0], 0, (byte)ScriptHashType.SIGHASH_ALL, 100 * SATOSHI_PER_BTC, daemon.CoinbasePrivateKey, daemon.CoinbasePublicKey, toPublicKey);
var block3BadUnmined = daemon.CreateEmptyBlock(block2.Hash)
.CreateWithAddedTransactions(spendTx);
var block3Bad = daemon.MineAndAddBlock(block3BadUnmined);
// check that bad block wasn't added
daemon.WaitForUpdate();
daemon.AssertAtBlock(2, block2.Hash);
// add a simple block
daemon.TestBlocks.Rollback(1);
var block3Good = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(3, block3Good.Hash);
}
}
public void TestLongBlockchain()
{
using (var daemon = new TestDaemon())
{
var count = 1.THOUSAND();
var height = 0;
var block = daemon.GenesisBlock;
for (var i = 0; i < count; i++)
{
height++;
block = daemon.MineAndAddEmptyBlock();
}
daemon.WaitForUpdate();
daemon.AssertAtBlock(height, block.Hash);
}
}
public void TestLongBlockchain()
{
using (var daemon = new TestDaemon())
{
var count = 1.THOUSAND();
var height = 0;
var block = daemon.GenesisBlock;
for (var i = 0; i < count; i++)
{
height++;
block = daemon.MineAndAddEmptyBlock();
}
daemon.WaitForUpdate();
daemon.AssertAtBlock(height, block.Hash);
}
}
public void TestSimpleBlockchainSplit()
{
using (var daemon1 = new TestDaemon())
{
// add some simple blocks
var block1 = daemon1.MineAndAddEmptyBlock();
var block2 = daemon1.MineAndAddEmptyBlock();
var block3a = daemon1.MineAndAddEmptyBlock();
daemon1.WaitForUpdate();
// create a fork test block chain, starting at block2
var testBlocksFork = daemon1.TestBlocks.Fork(1);
// wait for daemon
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(3, block3a.Hash);
// introduce a tie split
var block3b = daemon1.AddBlock(testBlocksFork.MineAndAddEmptyBlock());
// check that 3a is still current as it was first
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(3, block3a.Hash);
// continue with currently winning branch
var block4a = daemon1.MineAndAddEmptyBlock();
// wait for daemon
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(4, block4a.Hash);
// continue with tied branch
var block4b = daemon1.AddBlock(testBlocksFork.MineAndAddEmptyBlock());
// check that 4a is still current as it was first
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(4, block4a.Hash);
// resolve tie split, with other chain winning
var block5b = daemon1.AddBlock(testBlocksFork.MineAndAddEmptyBlock());
// check that blockchain reorged to the winning chain
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(5, block5b.Hash);
// continue on winning fork
var block6b = daemon1.AddBlock(testBlocksFork.MineAndAddEmptyBlock());
// check that blockchain continued on the winning chain
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(6, block6b.Hash);
// create a second blockchain, reusing the genesis from the first
using (var daemon2 = new TestDaemon(daemon1.GenesisBlock))
{
// add only the winning blocks to the second blockchain
daemon2.AddBlock(block1);
daemon2.AddBlock(block2);
daemon2.AddBlock(block3b);
daemon2.AddBlock(block4b);
daemon2.AddBlock(block5b);
daemon2.AddBlock(block6b);
// check second blockchain
daemon2.WaitForUpdate();
daemon2.AssertAtBlock(6, block6b.Hash);
// verify that re-organized blockchain matches winning-only blockchain
using (var expectedChainState = daemon2.CoreDaemon.GetChainState())
using (var actualChainState = daemon1.CoreDaemon.GetChainState())
{
var expectedUtxo = expectedChainState.ReadUnspentTransactions().ToList();
var actualUtxo = actualChainState.ReadUnspentTransactions().ToList();
CollectionAssert.AreEqual(expectedUtxo, actualUtxo);
}
}
}
}
public void TestShorterChainWins()
{
using (var daemon = new TestDaemon())
{
// add some simple blocks
var block1 = daemon.MineAndAddEmptyBlock();
var block2 = daemon.MineAndAddEmptyBlock();
var block3a = daemon.MineAndAddEmptyBlock();
var block4a = daemon.MineAndAddEmptyBlock();
var block5a = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(5, block5a.Hash);
// create a split with 3b, but do more work than current height 5 chain
var testBlocksFork = daemon.TestBlocks.Fork(3);
daemon.ChainParams.HighestTarget = UnitTestParams.Target2;
var block3b = daemon.AddBlock(testBlocksFork.MineAndAddEmptyBlock(UnitTestParams.Target2));
// check that blockchain reorganized to shorter chain
daemon.WaitForUpdate();
daemon.AssertAtBlock(3, block3b.Hash);
}
}
public void TestSimpleBlockchainSplit()
{
using (var daemon1 = new TestDaemon())
{
// add some simple blocks
var block1 = daemon1.MineAndAddEmptyBlock();
var block2 = daemon1.MineAndAddEmptyBlock();
var block3a = daemon1.MineAndAddEmptyBlock();
daemon1.WaitForUpdate();
// create a fork test block chain, starting at block2
var testBlocksFork = daemon1.TestBlocks.Fork(1);
// wait for daemon
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(3, block3a.Hash);
// introduce a tie split
var block3b = daemon1.AddBlock(testBlocksFork.MineAndAddEmptyBlock());
// check that 3a is still current as it was first
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(3, block3a.Hash);
// continue with currently winning branch
var block4a = daemon1.MineAndAddEmptyBlock();
// wait for daemon
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(4, block4a.Hash);
// continue with tied branch
var block4b = daemon1.AddBlock(testBlocksFork.MineAndAddEmptyBlock());
// check that 4a is still current as it was first
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(4, block4a.Hash);
// resolve tie split, with other chain winning
var block5b = daemon1.AddBlock(testBlocksFork.MineAndAddEmptyBlock());
// check that blockchain reorged to the winning chain
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(5, block5b.Hash);
// continue on winning fork
var block6b = daemon1.AddBlock(testBlocksFork.MineAndAddEmptyBlock());
// check that blockchain continued on the winning chain
daemon1.WaitForUpdate();
daemon1.AssertAtBlock(6, block6b.Hash);
// create a second blockchain, reusing the genesis from the first
using (var daemon2 = new TestDaemon(daemon1.GenesisBlock))
{
// add only the winning blocks to the second blockchain
daemon2.AddBlock(block1);
daemon2.AddBlock(block2);
daemon2.AddBlock(block3b);
daemon2.AddBlock(block4b);
daemon2.AddBlock(block5b);
daemon2.AddBlock(block6b);
// check second blockchain
daemon2.WaitForUpdate();
daemon2.AssertAtBlock(6, block6b.Hash);
// verify that re-organized blockchain matches winning-only blockchain
using (var expectedChainState = daemon2.CoreDaemon.GetChainState())
using (var actualChainState = daemon1.CoreDaemon.GetChainState())
{
var expectedUtxo = expectedChainState.ReadUnspentTransactions().ToList();
var actualUtxo = actualChainState.ReadUnspentTransactions().ToList();
CollectionAssert.AreEqual(expectedUtxo, actualUtxo);
}
}
}
}
public void TestInsufficientBalance()
{
using (var daemon = new TestDaemon())
{
// create a new keypair to spend to
var toKeyPair = daemon.TxManager.CreateKeyPair();
var toPrivateKey = toKeyPair.Item1;
var toPublicKey = toKeyPair.Item2;
// add some simple blocks
var block1 = daemon.MineAndAddEmptyBlock();
var block2 = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(2, block2.Hash);
// attempt to spend block 2's coinbase in block 3, using twice its value
var spendTx = daemon.TxManager.CreateSpendTransaction(block2.Transactions[0], 0, (byte)ScriptHashType.SIGHASH_ALL, 100 * SATOSHI_PER_BTC, daemon.CoinbasePrivateKey, daemon.CoinbasePublicKey, toPublicKey);
var block3BadUnmined = daemon.CreateEmptyBlock(block2.Hash)
.CreateWithAddedTransactions(spendTx);
var block3Bad = daemon.MineAndAddBlock(block3BadUnmined);
// check that bad block wasn't added
daemon.WaitForUpdate();
daemon.AssertAtBlock(2, block2.Hash);
// add a simple block
daemon.TestBlocks.Rollback(1);
var block3Good = daemon.MineAndAddEmptyBlock();
// check
daemon.WaitForUpdate();
daemon.AssertAtBlock(3, block3Good.Hash);
}
}