public void TestCanSpend_Spent()
{
// prepare utxo storage
var chain = Chain.CreateForGenesisBlock(new FakeHeaders().GenesisChained());
var unspentTransactions = ImmutableSortedDictionary.CreateBuilder<UInt256, UnspentTx>();
// prepare spent output
var txHash = new UInt256(0);
unspentTransactions.Add(txHash, new UnspentTx(txHash, blockIndex: 0, txIndex: 0, txVersion: 0, isCoinbase: false, length: 1, state: OutputState.Spent));
// prepare utxo
var memoryStorage = new MemoryStorageManager(unspentTransactions: unspentTransactions.ToImmutable());
var chainStateStorage = memoryStorage.OpenChainStateCursor().Item;
chainStateStorage.BeginTransaction();
chainStateStorage.ChainTip = chain.GenesisBlock;
chainStateStorage.CommitTransaction();
var utxo = new ChainState(chain, memoryStorage);
// prepare output reference
var prevTxOutput = new TxOutputKey(txHash, txOutputIndex: 0);
// 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
var chain = Chain.CreateForGenesisBlock(new FakeHeaders().GenesisChained());
var memoryStorage = new MemoryStorageManager();
var chainStateStorage = memoryStorage.OpenChainStateCursor().Item;
chainStateStorage.BeginTransaction();
chainStateStorage.ChainTip = chain.GenesisBlock;
chainStateStorage.CommitTransaction();
var utxo = new ChainState(chain, memoryStorage);
// prepare output reference
var prevTxOutput = new TxOutputKey(txHash: UInt256.Zero, txOutputIndex: 0);
// check if output can be spent
var canSpend = utxo.CanSpend(prevTxOutput);
// verify output cannot be spent
Assert.IsFalse(canSpend);
}