public async Task <bool> ValidateBlockBeforeExecuteAsync(IBlock block)
{
if (block?.Header == null || block.Body == null)
{
return(false);
}
if (block.Body.TransactionsCount == 0)
{
return(false);
}
// Verify that the transaction has been packaged in the current branch
foreach (var transactionId in block.TransactionIds)
{
var blockIndex =
await _transactionBlockIndexService.GetCachedTransactionBlockIndexAsync(transactionId,
block.Header.PreviousBlockHash);
if (blockIndex != null)
{
Logger.LogWarning($"Transaction: {transactionId} repackaged.");
return(false);
}
}
return(true);
}
public async Task UpdateOneBlockIndexWithoutBestChain()
{
var previousBlockHeader = _kernelTestHelper.BestBranchBlockList.Last().Header;
var block = _kernelTestHelper.GenerateBlock(previousBlockHeader.Height, Hash.FromString("PreBlockHash"));
var chain = await _blockchainService.GetChainAsync();
await AddBlockAsync(chain, block);
var txId = Hash.FromString("Transaction");
var blockIndex = new BlockIndex
{
BlockHash = block.GetHash(),
BlockHeight = block.Height
};
await _transactionBlockIndexService.UpdateTransactionBlockIndexAsync(new List <Hash> {
txId
}, blockIndex);
var actual = await _transactionBlockIndexService.GetTransactionBlockIndexAsync(txId);
Assert.Null(actual);
var cacheInBestBranch = await _transactionBlockIndexService.GetCachedTransactionBlockIndexAsync(txId);
Assert.Null(cacheInBestBranch);
var cacheInForkBranch =
await _transactionBlockIndexService.GetCachedTransactionBlockIndexAsync(txId, block.GetHash());
Assert.NotNull(cacheInForkBranch);
}
