public async Task GenerateBlocksAsync_does_not_use_small_coins()
{
var walletSecret = new WalletSecret()
{
WalletName = "wallet", WalletPassword = "******"
};
var wallet = new Wallet.Wallet()
{
Network = this.network
};
var milliseconds550MinutesAgo = (uint)Math.Max(this.chain.Tip.Header.Time - TimeSpan.FromMinutes(550).Milliseconds, 0);
this.AddAccountWithSpendableOutputs(wallet);
var spendableTransactions = wallet.GetAllSpendableTransactions(CoinType.Stratis, this.chain.Tip.Height, 0).ToList();
this.walletManager.Setup(w => w.GetSpendableTransactionsInWalletForStaking(It.IsAny <string>(), It.IsAny <int>()))
.Returns(spendableTransactions);
var fetchedUtxos = spendableTransactions
.Select(t => new UnspentOutputs(t.Transaction.Id, new Coins()
{
CoinBase = false,
CoinStake = false,
Height = 0,
Outputs = { new TxOut(t.Transaction.Amount ?? Money.Zero, t.Address.ScriptPubKey) },
Time = milliseconds550MinutesAgo,
Version = 1
}))
.ToArray();
var fetchCoinsResponse = new FetchCoinsResponse(fetchedUtxos, this.chain.Tip.HashBlock);
fetchCoinsResponse.UnspentOutputs
.Where(u => u.Outputs.Any(o => o.Value < this.posMinting.MinimumStakingCoinValue)).Should()
.NotBeEmpty("otherwise we are not sure the code actually excludes them");
fetchCoinsResponse.UnspentOutputs
.Where(u => u.Outputs.Any(o => o.Value >= this.posMinting.MinimumStakingCoinValue)).Should()
.NotBeEmpty("otherwise we are not sure the code actually includes them");
this.coinView.Setup(c => c.FetchCoins(It.IsAny <uint256[]>(), It.IsAny <CancellationToken>()))
.Returns(fetchCoinsResponse);
this.consensusManager.Setup(c => c.Tip).Returns(this.chain.Tip);
this.dateTimeProvider.Setup(c => c.GetAdjustedTimeAsUnixTimestamp())
.Returns(this.chain.Tip.Header.Time + 16);
var ct = CancellationToken.None;
var utxoStakeDescriptions = await this.posMinting.GetUtxoStakeDescriptionsAsync(walletSecret, ct);
utxoStakeDescriptions.Select(d => d.TxOut.Value).Where(v => v < this.posMinting.MinimumStakingCoinValue)
.Should().BeEmpty("small coins should not be included");
utxoStakeDescriptions.Select(d => d.TxOut.Value).Where(v => v >= this.posMinting.MinimumStakingCoinValue)
.Should().NotBeEmpty("big enough coins should be included");
var expectedAmounts = spendableTransactions.Select(s => s.Transaction.Amount)
.Where(a => a >= this.posMinting.MinimumStakingCoinValue).ToArray();
utxoStakeDescriptions.Count.Should().Be(expectedAmounts.Length);
utxoStakeDescriptions.Select(d => d.TxOut.Value).Should().Contain(expectedAmounts);
}
public void GenerateBlocks_does_not_use_small_coins()
{
var walletSecret = new WalletSecret()
{
WalletName = "wallet", WalletPassword = "******"
};
var wallet = new Wallet.Wallet(this.network);
var milliseconds550MinutesAgo = (uint)Math.Max(this.chainIndexer.Tip.Header.Time - TimeSpan.FromMinutes(550).Milliseconds, 0);
this.AddAccountWithSpendableOutputs(wallet);
var spendableTransactions = wallet.GetAllSpendableTransactions(this.chainIndexer.Tip.Height, 0).ToList();
this.walletManager.Setup(w => w.GetSpendableTransactionsInWalletForStaking(It.IsAny <string>(), It.IsAny <int>()))
.Returns(spendableTransactions);
var fetchedUtxos = spendableTransactions
.Select(t =>
new UnspentOutput(
new OutPoint(t.Transaction.Id, 0),
new Utilities.Coins(0, new TxOut(t.Transaction.Amount ?? Money.Zero, t.Address.ScriptPubKey),
false,
false)))
.ToArray();
var fetchCoinsResponse = new FetchCoinsResponse();
foreach (var fetch in fetchedUtxos)
{
fetchCoinsResponse.UnspentOutputs.Add(fetch.OutPoint, fetch);
}
fetchCoinsResponse.UnspentOutputs
.Where(u => u.Value.Coins.TxOut.Value < this.posMinting.MinimumStakingCoinValue).Should()
.NotBeEmpty("otherwise we are not sure the code actually excludes them");
fetchCoinsResponse.UnspentOutputs
.Where(u => u.Value.Coins.TxOut.Value >= this.posMinting.MinimumStakingCoinValue).Should()
.NotBeEmpty("otherwise we are not sure the code actually includes them");
this.coinView.Setup(c => c.FetchCoins(It.IsAny <OutPoint[]>()))
.Returns(fetchCoinsResponse);
this.consensusManager.Setup(c => c.Tip).Returns(this.chainIndexer.Tip);
this.dateTimeProvider.Setup(c => c.GetAdjustedTimeAsUnixTimestamp())
.Returns(this.chainIndexer.Tip.Header.Time + 16);
var ct = CancellationToken.None;
var utxoStakeDescriptions = this.posMinting.GetUtxoStakeDescriptions(walletSecret, ct);
utxoStakeDescriptions.Select(d => d.TxOut.Value).Where(v => v < this.posMinting.MinimumStakingCoinValue)
.Should().BeEmpty("small coins should not be included");
utxoStakeDescriptions.Select(d => d.TxOut.Value).Where(v => v >= this.posMinting.MinimumStakingCoinValue)
.Should().NotBeEmpty("big enough coins should be included");
var expectedAmounts = spendableTransactions.Select(s => s.Transaction.Amount)
.Where(a => a >= this.posMinting.MinimumStakingCoinValue).ToArray();
utxoStakeDescriptions.Count.Should().Be(expectedAmounts.Length);
utxoStakeDescriptions.Select(d => d.TxOut.Value).Should().Contain(expectedAmounts);
}
public Task Mine(WalletSecret walletSecret)
{
if (this.mining != null)
{
return(this.mining); // already mining
}
this.mining = this.asyncLoopFactory.Run("PosMining.Mine", token =>
{
this.GenerateBlocks(walletSecret);
return(Task.CompletedTask);
},
this.nodeLifetime.ApplicationStopping,
repeatEvery: TimeSpan.FromMilliseconds(this.minerSleep),
startAfter: TimeSpans.TenSeconds);
return(this.mining);
}
public Task Mine(WalletSecret walletSecret)
{
if (this.mining != null)
{
return(this.mining); // already mining
}
this.mining = AsyncLoop.Run("PosMining.Mine", token =>
{
this.GenerateBlocks(walletSecret);
return(Task.CompletedTask);
},
this.cancellationProvider.Cancellation.Token,
repeatEvery: TimeSpan.FromMilliseconds(this.minerSleep),
startAfter: TimeSpans.TenSeconds);
return(this.mining);
}
public void GenerateBlocks(WalletSecret walletSecret)
{
this.LastCoinStakeSearchInterval = 0;
BlockTemplate pblocktemplate = null;
bool tryToSync = true;
while (true)
{
if (this.chain.Tip != this.consensusLoop.Tip)
{
return;
}
while (!this.connection.ConnectedNodes.Any() || this.chainState.IsInitialBlockDownload)
{
this.LastCoinStakeSearchInterval = 0;
tryToSync = true;
Task.Delay(TimeSpan.FromMilliseconds(this.minerSleep), this.nodeLifetime.ApplicationStopping).GetAwaiter().GetResult();
}
if (tryToSync)
{
tryToSync = false;
if (this.connection.ConnectedNodes.Count() < 3 ||
this.chain.Tip.Header.Time < this.dateTimeProvider.GetTime() - 10 * 60)
{
//this.cancellationProvider.Cancellation.Token.WaitHandle.WaitOne(TimeSpan.FromMilliseconds(60000));
continue;
}
}
if (pblocktemplate == null)
{
pblocktemplate = this.blockAssemblerFactory.Create(new AssemblerOptions()
{
IsProofOfStake = true
}).CreateNewBlock(new Script());
}
var pblock = pblocktemplate.Block;
var pindexPrev = this.consensusLoop.Tip;
var stakeTxes = new List <StakeTx>();
var spendable = this.wallet.GetSpendableTransactions(1);
var coinset = this.coinView.FetchCoinsAsync(spendable.SelectMany(s => s.Transactions.Select(t => t.Id)).ToArray()).GetAwaiter().GetResult();
foreach (var unspentInfo in spendable)
{
foreach (var infoTransaction in unspentInfo.Transactions)
{
var set = coinset.UnspentOutputs.FirstOrDefault(f => f?.TransactionId == infoTransaction.Id);
var utxo = set?._Outputs[infoTransaction.Index.Value];
if (utxo != null && utxo.Value > Money.Zero)
{
var stakeTx = new StakeTx();
stakeTx.TxOut = utxo;
stakeTx.OutPoint = new OutPoint(set.TransactionId, infoTransaction.Index.Value);
stakeTx.Address = unspentInfo.Address;
stakeTx.OutputIndex = infoTransaction.Index.Value;
stakeTx.HashBlock = this.chain.GetBlock((int)set.Height).HashBlock;
stakeTx.UtxoSet = set;
stakeTx.Secret = walletSecret; //temporary
stakeTxes.Add(stakeTx);
}
}
}
// Trying to sign a block
if (this.SignBlock(stakeTxes, pblock, pindexPrev, pblocktemplate.TotalFee))
{
var blockResult = new BlockResult {
Block = pblock
};
this.CheckState(new ContextInformation(blockResult, this.network.Consensus), pindexPrev);
pblocktemplate = null;
}
else
{
Task.Delay(TimeSpan.FromMilliseconds(this.minerSleep), this.nodeLifetime.ApplicationStopping).GetAwaiter().GetResult();
}
}
}
