public void should_pick_tx_with_lowest_nonce_from_bucket()
{
_txPoolConfig = new TxPoolConfig()
{
PeerNotificationThreshold = 5
};
_broadcaster = new TxBroadcaster(_comparer, TimerFactory.Default, _txPoolConfig, _headInfo, _logManager);
_headInfo.CurrentBaseFee.Returns(0.GWei());
const int addedTxsCount = 5;
Transaction[] transactions = new Transaction[addedTxsCount];
for (int i = 0; i < addedTxsCount; i++)
{
transactions[i] = Build.A.Transaction
.WithNonce((UInt256)i)
.WithGasPrice(i.GWei())
.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeyA)
.TestObject;
_broadcaster.Broadcast(transactions[i], true);
}
_broadcaster.GetSnapshot().Length.Should().Be(addedTxsCount);
IList <Transaction> pickedTxs = _broadcaster.GetPersistentTxsToSend();
pickedTxs.Count.Should().Be(1);
List <Transaction> expectedTxs = new() { transactions[0] };
expectedTxs.Should().BeEquivalentTo(pickedTxs);
}
}
public void should_pick_best_persistent_txs_to_broadcast(int threshold)
{
_txPoolConfig = new TxPoolConfig()
{
PeerNotificationThreshold = threshold
};
_broadcaster = new TxBroadcaster(_comparer, TimerFactory.Default, _txPoolConfig, _headInfo, _logManager);
_headInfo.CurrentBaseFee.Returns(0.GWei());
int addedTxsCount = TestItem.PrivateKeys.Length;
Transaction[] transactions = new Transaction[addedTxsCount];
for (int i = 0; i < addedTxsCount; i++)
{
transactions[i] = Build.A.Transaction
.WithGasPrice(i.GWei())
.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeys[i])
.TestObject;
_broadcaster.Broadcast(transactions[i], true);
}
_broadcaster.GetSnapshot().Length.Should().Be(addedTxsCount);
List <Transaction> pickedTxs = _broadcaster.GetPersistentTxsToSend().ToList();
int expectedCount = threshold <= 0 ? 0 : addedTxsCount;
pickedTxs.Count.Should().Be(expectedCount);
}
public void should_not_pick_1559_txs_with_MaxFeePerGas_lower_than_CurrentBaseFee(int threshold)
{
_txPoolConfig = new TxPoolConfig()
{
PeerNotificationThreshold = threshold
};
_broadcaster = new TxBroadcaster(_comparer, TimerFactory.Default, _txPoolConfig, _headInfo, _logManager);
const int currentBaseFeeInGwei = 250;
_headInfo.CurrentBaseFee.Returns(currentBaseFeeInGwei.GWei());
Block headBlock = Build.A.Block
.WithNumber(RopstenSpecProvider.LondonBlockNumber)
.WithBaseFeePerGas(currentBaseFeeInGwei.GWei())
.TestObject;
_blockTree.Head.Returns(headBlock);
int addedTxsCount = TestItem.PrivateKeys.Length;
Transaction[] transactions = new Transaction[addedTxsCount];
for (int i = 0; i < addedTxsCount; i++)
{
transactions[i] = Build.A.Transaction
.WithType(TxType.EIP1559)
.WithMaxFeePerGas(i.GWei())
.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeys[i])
.TestObject;
_broadcaster.Broadcast(transactions[i], true);
}
_broadcaster.GetSnapshot().Length.Should().Be(addedTxsCount);
IList <Transaction> pickedTxs = _broadcaster.GetPersistentTxsToSend();
int expectedCount = Math.Min(addedTxsCount * threshold / 100 + 1, addedTxsCount - currentBaseFeeInGwei);
pickedTxs.Count.Should().Be(expectedCount);
List <Transaction> expectedTxs = new();
for (int i = 1; i <= expectedCount; i++)
{
expectedTxs.Add(transactions[addedTxsCount - i]);
}
expectedTxs.Should().BeEquivalentTo(pickedTxs, o => o.Excluding(transaction => transaction.MaxFeePerGas));
}