/// <summary>
/// Calculate merkle tree root of transaction.
/// </summary>
/// <returns></returns>
public static Hash CalculateMerkleTreeRoot(this BlockBody blockBody)
{
if (blockBody.TransactionsCount == 0)
{
return(Hash.Empty);
}
var merkleTreeRoot = BinaryMerkleTree.FromLeafNodes(blockBody.TransactionIds).Root;
return(merkleTreeRoot);
}
private Block GenerateBlock(BlockHeader blockHeader, IEnumerable <Hash> transactionIds)
{
var leafNodes = transactionIds as Hash[] ?? transactionIds.ToArray();
blockHeader.MerkleTreeRootOfTransactions = BinaryMerkleTree.FromLeafNodes(leafNodes).Root;
blockHeader.MerkleTreeRootOfWorldState = Hash.Empty;
blockHeader.MerkleTreeRootOfTransactionStatus = Hash.Empty;
blockHeader.SignerPubkey = ByteString.CopyFromUtf8("SignerPubkey");
var block = new Block
{
Header = blockHeader,
Body = new BlockBody()
};
block.Body.TransactionIds.AddRange(leafNodes);
return(block);
}
public void BlockBody_Test()
{
var blockBody = new BlockBody();
blockBody.CalculateMerkleTreeRoot().ShouldBe(Hash.Empty);
var transaction1 = _kernelTestHelper.GenerateTransaction();
var transaction2 = _kernelTestHelper.GenerateTransaction();
var transaction3 = _kernelTestHelper.GenerateTransaction();
blockBody.AddTransaction(transaction1);
blockBody.TransactionIds.Count.ShouldBe(1);
blockBody.TransactionIds.ShouldContain(transaction1.GetHash());
blockBody.AddTransactions(new[] { transaction2.GetHash(), transaction3.GetHash() });
blockBody.TransactionIds.Count.ShouldBe(3);
blockBody.TransactionIds.ShouldContain(transaction2.GetHash());
blockBody.TransactionIds.ShouldContain(transaction3.GetHash());
blockBody.CalculateMerkleTreeRoot().ShouldBe(BinaryMerkleTree.FromLeafNodes(blockBody.TransactionIds).Root);
}