public static Gen <TxIn> Input() => from prevout in OutPoint()
from ss in ScriptGenerator.RandomScriptSig()
from nSequence in PrimitiveGenerator.UInt32()
select new TxIn(prevout, ss)
{
Sequence = nSequence
};
/// <summary>
/// This is slow, provably because `Add*` methods will iterate over inputs.
/// </summary>
/// <param name="network"></param>
/// <returns></returns>
public static Gen <PSBT> SanePSBT(Network network) =>
from inputN in Gen.Choose(0, 8)
from scripts in Gen.ListOf(inputN, ScriptGenerator.RandomScriptSig())
from txOuts in Gen.Sequence(scripts.Select(sc => OutputFromRedeem(sc)))
from prevN in Gen.Choose(0, 5)
from prevTxs in Gen.Sequence(txOuts.Select(o => TXFromOutput(o, network, prevN)))
let txins = prevTxs.Select(tx => new TxIn(new OutPoint(tx.GetHash(), prevN)))
from locktime in PrimitiveGenerator.UInt32()
let tx = LegacyTransactionGenerators.ComposeTx(network.CreateTransaction(), txins.ToList(), txOuts.ToList(), locktime)
from TxsToAdd in Gen.SubListOf(prevTxs)
from CoinsToAdd in Gen.SubListOf(prevTxs.SelectMany(tx => tx.Outputs.AsCoins()))
from scriptsToAdd in Gen.SubListOf <Script>(scripts)
let psbt = tx.CreatePSBT(network)
.AddTransactions(prevTxs.ToArray())
.AddCoins(CoinsToAdd.ToArray())
.AddScripts(scriptsToAdd.ToArray())
select psbt;