public async Task TxHub_Test()
{
TransactionValidationStatusChangedEvent transactionValidationStatusChangedEventData = null;
_eventBus.Subscribe <TransactionValidationStatusChangedEvent>(d =>
{
transactionValidationStatusChangedEventData = d;
return(Task.CompletedTask);
});
TransactionAcceptedEvent transactionAcceptedEvent = null;
_eventBus.Subscribe <TransactionAcceptedEvent>(d =>
{
transactionAcceptedEvent = d;
return(Task.CompletedTask);
});
{
// Empty transaction pool
// Chain:
// BestChainHeight: 11
// TxHub:
// BestChainHeight: 0
// AllTransaction: 0
// ValidatedTransaction: 0
await TxHubBestChainShouldBeAsync(Hash.Empty, 0);
await TransactionPoolSizeShouldBeAsync(0, 0);
transactionValidationStatusChangedEventData.ShouldBeNull();
transactionAcceptedEvent.ShouldBeNull();
}
{
// Receive a valid transaction
// Chain:
// BestChainHeight: 11
// TxHub:
// BestChainHeight: 0
// AllTransaction: 0
// ValidatedTransaction: 0
var chain = await _blockchainService.GetChainAsync();
var transactionValid =
_kernelTestHelper.GenerateTransaction(chain.BestChainHeight, chain.BestChainHash);
await AddTransactionsAsync(new List <Transaction> {
transactionValid
});
await TxHubBestChainShouldBeAsync(Hash.Empty, 0);
await TransactionPoolSizeShouldBeAsync(0, 0);
await CheckTransactionInPoolAsync(transactionValid, false);
transactionValidationStatusChangedEventData.ShouldBeNull();
transactionAcceptedEvent.ShouldBeNull();
}
{
// Receive best chain found event
// Chain:
// BestChainHeight: 12
// TxHub:
// BestChainHeight: 12
// AllTransaction: 0
// ValidatedTransaction: 0
await _kernelTestHelper.AttachBlockToBestChain();
var chain = await _blockchainService.GetChainAsync();
await _txHub.UpdateTransactionPoolByBestChainAsync(chain.BestChainHash, chain.BestChainHeight);
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 12);
await TransactionPoolSizeShouldBeAsync(0, 0);
}
{
// Receive a different branch transaction
// Chain:
// BestChainHeight: 12
// TxHub:
// BestChainHeight: 12
// AllTransaction: 1
// ValidatedTransaction: 0
var transactionDifferent = _kernelTestHelper.GenerateTransaction(12);
var chain = await _blockchainService.GetChainAsync();
await AddTransactionsAsync(new List <Transaction> {
transactionDifferent
});
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 12);
await TransactionPoolSizeShouldBeAsync(1, 0);
await CheckTransactionInPoolAsync(transactionDifferent, true);
transactionValidationStatusChangedEventData.ShouldBeNull();
transactionAcceptedEvent.ShouldBeNull();
}
{
// Receive a future transaction
// Chain:
// BestChainHeight: 12
// TxHub:
// BestChainHeight: 12
// AllTransaction: 1
// ValidatedTransaction: 0
var chain = await _blockchainService.GetChainAsync();
var transactionFuture = _kernelTestHelper.GenerateTransaction(chain.BestChainHeight + 1);
await AddTransactionsAsync(new List <Transaction> {
transactionFuture
});
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 12);
await TransactionPoolSizeShouldBeAsync(1, 0);
await CheckTransactionInPoolAsync(transactionFuture, false);
transactionAcceptedEvent.ShouldBeNull();
transactionValidationStatusChangedEventData.ShouldNotBeNull();
transactionValidationStatusChangedEventData.TransactionId.ShouldBe(transactionFuture.GetHash());
transactionValidationStatusChangedEventData.TransactionResultStatus.ShouldBe(TransactionResultStatus
.NodeValidationFailed);
transactionValidationStatusChangedEventData.Error.ShouldContain("Transaction expired");
transactionValidationStatusChangedEventData = null;
}
{
// Receive a invalid transaction
// Chain:
// BestChainHeight: 12
// TxHub:
// BestChainHeight: 12
// AllTransaction: 1
// ValidatedTransaction: 0
var chain = await _blockchainService.GetChainAsync();
var transactionInvalid =
_kernelTestHelper.GenerateTransaction(chain.BestChainHeight, chain.BestChainHash);
transactionInvalid.Signature = ByteString.Empty;
await AddTransactionsAsync(new List <Transaction> {
transactionInvalid
});
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 12);
await TransactionPoolSizeShouldBeAsync(1, 0);
await CheckTransactionInPoolAsync(transactionInvalid, false);
transactionValidationStatusChangedEventData.ShouldNotBeNull();
transactionValidationStatusChangedEventData.TransactionId.ShouldBe(transactionInvalid.GetHash());
transactionValidationStatusChangedEventData.TransactionResultStatus.ShouldBe(TransactionResultStatus
.NodeValidationFailed);
transactionValidationStatusChangedEventData.Error.ShouldBe("Incorrect transaction signature.");
transactionAcceptedEvent.ShouldBeNull();
transactionValidationStatusChangedEventData = null;
}
{
// Receive a transaction already in DB
// Chain:
// BestChainHeight: 12
// TxHub:
// BestChainHeight: 12
// AllTransaction: 1
// ValidatedTransaction: 0
var chain = await _blockchainService.GetChainAsync();
var transactionInDB =
_kernelTestHelper.GenerateTransaction(chain.BestChainHeight, chain.BestChainHash);
await _blockchainService.AddTransactionsAsync(new List <Transaction> {
transactionInDB
});
await AddTransactionsAsync(new List <Transaction> {
transactionInDB
});
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 12);
await TransactionPoolSizeShouldBeAsync(1, 0);
await CheckTransactionInPoolAsync(transactionInDB, false);
transactionValidationStatusChangedEventData.ShouldBeNull();
transactionAcceptedEvent.ShouldBeNull();
}
{
// Receive a valid transaction
// Chain:
// BestChainHeight: 12
// TxHub:
// BestChainHeight: 12
// AllTransaction: 2
// ValidatedTransaction: 1
var chain = await _blockchainService.GetChainAsync();
var transactionValid =
_kernelTestHelper.GenerateTransaction(chain.BestChainHeight, chain.BestChainHash);
await AddTransactionsAsync(new List <Transaction> {
transactionValid
});
await _txHub.UpdateTransactionPoolByBestChainAsync(chain.BestChainHash, chain.BestChainHeight);
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 12);
await TransactionPoolSizeShouldBeAsync(2, 1);
await CheckTransactionInPoolAsync(transactionValid, true);
transactionValidationStatusChangedEventData.ShouldBeNull();
transactionAcceptedEvent.ShouldNotBeNull();
transactionAcceptedEvent.Transaction.ShouldBe(transactionValid);
transactionAcceptedEvent.ChainId.ShouldBe(chain.Id);
transactionAcceptedEvent = null;
// Receive the valid transaction again
// Chain:
// BestChainHeight: 12
// TxHub:
// BestChainHeight: 12
// AllTransaction: 2
// ValidatedTransaction: 1
await AddTransactionsAsync(new List <Transaction> {
transactionValid
});
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 12);
await TransactionPoolSizeShouldBeAsync(2, 1);
await CheckTransactionInPoolAsync(transactionValid, true);
transactionValidationStatusChangedEventData.ShouldBeNull();
transactionAcceptedEvent.ShouldBeNull();
// Mined a block
// Chain:
// BestChainHeight: 13
// TxHub:
// BestChainHeight: 12
// AllTransaction: 1
// ValidatedTransaction: 0
var transactionNotInPool =
_kernelTestHelper.GenerateTransaction(chain.BestChainHeight, chain.BestChainHash);
var newBlock = await _kernelTestHelper.AttachBlockToBestChain(new List <Transaction>
{
transactionValid,
transactionNotInPool
});
await _txHub.CleanByTransactionIdsAsync(newBlock.TransactionIds);
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 12);
await TransactionPoolSizeShouldBeAsync(1, 1);
await CheckTransactionInPoolAsync(transactionValid, false);
}
{
// Receive best chain found event
// Chain:
// BestChainHeight: 13
// TxHub:
// BestChainHeight: 13
// AllTransaction: 1
// ValidatedTransaction: 0
var chain = await _blockchainService.GetChainAsync();
await _txHub.UpdateTransactionPoolByBestChainAsync(chain.BestChainHash, chain.BestChainHeight);
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 13);
await TransactionPoolSizeShouldBeAsync(1, 0);
}
{
// Receive a valid transaction and a expired transaction
// Chain:
// BestChainHeight: 13
// TxHub:
// BestChainHeight: 13
// AllTransaction: 2
// ValidatedTransaction: 1
var chain = await _blockchainService.GetChainAsync();
var transactionValid =
_kernelTestHelper.GenerateTransaction(chain.BestChainHeight, chain.BestChainHash);
var transactionExpired = _kernelTestHelper.GenerateTransaction(chain.BestChainHeight + 100);
await AddTransactionsAsync(new List <Transaction>
{
transactionValid,
transactionExpired
});
await _txHub.UpdateTransactionPoolByBestChainAsync(chain.BestChainHash, chain.BestChainHeight);
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 13);
await TransactionPoolSizeShouldBeAsync(2, 1);
await CheckTransactionInPoolAsync(transactionValid, true);
await CheckTransactionInPoolAsync(transactionExpired, false);
transactionValidationStatusChangedEventData.ShouldNotBeNull();
transactionValidationStatusChangedEventData.TransactionId.ShouldBe(transactionExpired.GetHash());
transactionValidationStatusChangedEventData.TransactionResultStatus.ShouldBe(TransactionResultStatus
.NodeValidationFailed);
transactionValidationStatusChangedEventData.Error.ShouldContain("Transaction expired");
transactionAcceptedEvent.ShouldNotBeNull();
transactionAcceptedEvent.Transaction.ShouldBe(transactionValid);
transactionAcceptedEvent.ChainId.ShouldBe(chain.Id);
transactionAcceptedEvent = null;
transactionValidationStatusChangedEventData = null;
}
{
// Set lib 12
// Chain:
// BestChainHeight: 13
// TxHub:
// BestChainHeight: 13
// AllTransaction: 1
// ValidatedTransaction: 1
var chain = await _blockchainService.GetChainAsync();
await _txHub.CleanByHeightAsync(12);
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 13);
await TransactionPoolSizeShouldBeAsync(1, 1);
}
{
// After 513 blocks
// Chain:
// BestChainHeight: 526
// TxHub:
// BestChainHeight: 526
// AllTransaction: 1
// ValidatedTransaction: 0
var chain = await _blockchainService.GetChainAsync();
var bestChainHeight = chain.BestChainHeight;
for (var i = 0; i < KernelConstants.ReferenceBlockValidPeriod + 1; i++)
{
var transaction = _kernelTestHelper.GenerateTransaction(bestChainHeight + i);
await _kernelTestHelper.AttachBlockToBestChain(new List <Transaction> {
transaction
});
chain = await _blockchainService.GetChainAsync();
await _txHub.UpdateTransactionPoolByBestChainAsync(chain.BestChainHash, chain.BestChainHeight);
}
await TxHubBestChainShouldBeAsync(chain.BestChainHash, 526);
await TransactionPoolSizeShouldBeAsync(0, 0);
}
}
public async Task UpdateTransactionPoolByLibAsync(long libHeight)
{
await _txHub.CleanByHeightAsync(libHeight);
}