public void ShouldPreserveOriginalTxPropertyAsPossible()
{
var keys = new Key[] { new Key(), new Key(), new Key() };
var redeem = PayToMultiSigTemplate.Instance.GenerateScriptPubKey(3, keys.Select(k => k.PubKey).ToArray());
var network = Network.Main;
var funds = CreateDummyFunds(network, keys, redeem);
// 1. without signature nor scripts.
var tx = CreateTxToSpendFunds(funds, keys, redeem, false, false);
// 2. with (unsigned) scriptSig and witness.
tx = CreateTxToSpendFunds(funds, keys, redeem, true, false);
var psbt = new PSBT(tx, true);
Assert.Null(psbt.Inputs[0].FinalScriptSig); // it is not finalized since it is not signed
Assert.Null(psbt.Inputs[1].FinalScriptWitness); // This too
Assert.NotNull(psbt.Inputs[2].RedeemScript); // But it holds redeem script.
Assert.NotNull(psbt.Inputs[3].WitnessScript); // And witness script.
Assert.NotNull(psbt.Inputs[5].WitnessScript); // even in p2sh-nested-p2wsh
Assert.NotNull(psbt.Inputs[5].RedeemScript);
// 3. with finalized scriptSig and witness
tx = CreateTxToSpendFunds(funds, keys, redeem, true, true);
psbt = new PSBT(tx, true);
Assert.NotNull(psbt.Inputs[0].FinalScriptSig); // it should be finalized
Assert.NotNull(psbt.Inputs[1].FinalScriptWitness); // p2wpkh too
Assert.NotNull(psbt.Inputs[2].RedeemScript); // But it holds redeem script.
Assert.NotNull(psbt.Inputs[3].WitnessScript); // And witness script.
Assert.NotNull(psbt.Inputs[4].FinalScriptSig); // Same principle holds for p2sh-nested version.
Assert.NotNull(psbt.Inputs[4].FinalScriptWitness);
Assert.NotNull(psbt.Inputs[5].WitnessScript);
Assert.NotNull(psbt.Inputs[5].RedeemScript);
Assert.Empty(psbt.Inputs[2].PartialSigs); // But it still can not hold partial_sigs
Assert.Empty(psbt.Inputs[3].PartialSigs); // Even in p2wsh
Assert.Empty(psbt.Inputs[5].PartialSigs); // And p2sh-p2wsh
psbt.AddTransactions(funds); // when we add previous outputs, it will be able to resurrect signatures.
Assert.NotEmpty(psbt.Inputs[2].PartialSigs);
Assert.NotEmpty(psbt.Inputs[3].PartialSigs);
Assert.NotEmpty(psbt.Inputs[5].PartialSigs);
}