public void TestCanSpend_NegativeIndex()
{
// prepare utxo storage
var unspentTransactions = ImmutableDictionary.CreateBuilder <UInt256, UnspentTx>();
var unspentOutputs = ImmutableDictionary.CreateBuilder <TxOutputKey, TxOutput>();
// prepare unspent output
var txHash = new UInt256(0);
unspentTransactions.Add(txHash, new UnspentTx(confirmedBlockHash: 0, length: 1, state: OutputState.Unspent));
unspentOutputs.Add(new TxOutputKey(txHash, UInt32.MaxValue), new TxOutput(0, ImmutableArray.Create <byte>()));
// prepare utxo
var chainStateStorage = new MemoryChainStateStorage(0, unspentTransactions.ToImmutable(), unspentOutputs.ToImmutable());
var utxo = new Utxo(chainStateStorage);
// prepare output reference
var prevTxOutput = new TxOutputKey(txHash, txOutputIndex: UInt32.MaxValue);
// check if output can be spent
var canSpend = utxo.CanSpend(prevTxOutput);
// verify output cannot be spent
Assert.IsFalse(canSpend);
}
public void TestCanSpend_Missing()
{
// prepare utxo storage
var unspentTransactions = ImmutableDictionary.CreateBuilder <UInt256, UnspentTx>();
var unspentOutputs = ImmutableDictionary.CreateBuilder <TxOutputKey, TxOutput>();
// prepare utxo
var chainStateStorage = new MemoryChainStateStorage(0, unspentTransactions.ToImmutable(), unspentOutputs.ToImmutable());
var utxo = new Utxo(chainStateStorage);
// prepare output reference
var prevTxOutput = new TxOutputKey(txHash: 0, txOutputIndex: 0);
// check if output can be spent
var canSpend = utxo.CanSpend(prevTxOutput);
// verify output cannot be spent
Assert.IsFalse(canSpend);
}