public async Task MinerCreateBlockAbsoluteHeightLockedAsync()
{
var context = new TestContext();
await context.InitializeAsync();
var tx = new Transaction();
tx.AddInput(new TxIn());
tx.AddOutput(new TxOut());
Transaction.LockTimeFlags flags = Transaction.LockTimeFlags.VerifySequence | Transaction.LockTimeFlags.MedianTimePast;
int MedianTimeSpan = 11;
var prevheights = new List <int>();
prevheights.Add(1);
tx.Version = 2;
tx.Inputs[0].PrevOut.Hash = context.txFirst[1].GetHash();
tx.Inputs[0].ScriptSig = new Script(OpcodeType.OP_1);
tx.Inputs[0].PrevOut.N = 0;
tx.Inputs[0].Sequence = new Sequence(TimeSpan.FromMinutes(10)); // txFirst[1] is the 3rd block
tx.Outputs[0].Value = context.BLOCKSUBSIDY - context.HIGHFEE;
tx.Outputs[0].ScriptPubKey = new Script(OpcodeType.OP_1);
tx.LockTime = 0;
prevheights[0] = context.baseheight + 2;
for (int i = 0; i < MedianTimeSpan; i++)
{
context.chain.SetTip(new BlockHeader {
HashPrevBlock = context.chain.Tip.HashBlock, Time = Utils.DateTimeToUnixTime(context.chain.Tip.GetMedianTimePast()) + 512
});
}
SequenceLock locks = (tx.CalculateSequenceLocks(prevheights.ToArray(), context.chain.Tip, flags));
Assert.True(locks.Evaluate(context.chain.Tip));
context = new TestContext();
await context.InitializeAsync();
// absolute height locked
tx.Inputs[0].PrevOut.Hash = context.txFirst[2].GetHash();
tx.Inputs[0].Sequence = Sequence.Final - 1;
prevheights[0] = context.baseheight + 3;
tx.LockTime = context.chain.Tip.Height + 1;
context.hash = tx.GetHash();
context.mempool.AddUnchecked(context.hash, context.entry.Time(context.DateTimeProvider.GetTime()).FromTx(tx));
Assert.True(!MempoolValidator.CheckFinalTransaction(context.chain, context.DateTimeProvider, tx, flags)); // Locktime fails
Assert.True(this.TestSequenceLocks(context, context.chain.Tip, tx, flags)); // Sequence locks pass
context.chain.SetTip(new BlockHeader {
HashPrevBlock = context.chain.Tip.HashBlock, Time = Utils.DateTimeToUnixTime(context.chain.Tip.GetMedianTimePast()) + 512
});
context.chain.SetTip(new BlockHeader {
HashPrevBlock = context.chain.Tip.HashBlock, Time = Utils.DateTimeToUnixTime(context.chain.Tip.GetMedianTimePast()) + 512
});
Assert.True(tx.IsFinal(context.chain.Tip.GetMedianTimePast(), context.chain.Tip.Height + 2)); // Locktime passes on 2nd block
}
public async Task MinerCreateBlockNonFinalTxsInMempoolAsync()
{
var context = new TestContext();
await context.InitializeAsync();
var tx = context.network.CreateTransaction();
tx.AddInput(new TxIn());
tx.AddOutput(new TxOut());
// non - final txs in mempool
(context.DateTimeProvider as DateTimeProviderSet).time = context.ChainIndexer.Tip.Header.Time + 1;
//SetMockTime(chainActive.Tip().GetMedianTimePast() + 1);
Transaction.LockTimeFlags flags = Transaction.LockTimeFlags.VerifySequence | Transaction.LockTimeFlags.MedianTimePast;
// height map
var prevheights = new List <int>();
// relative height locked
tx.Version = 2;
prevheights.Add(1);
tx.Inputs[0].PrevOut.Hash = context.txFirst[0].GetHash(); // only 1 transaction
tx.Inputs[0].PrevOut.N = 0;
tx.Inputs[0].ScriptSig = new Script(OpcodeType.OP_1);
tx.Inputs[0].Sequence = new Sequence(context.ChainIndexer.Tip.Height + 1); // txFirst[0] is the 2nd block
prevheights[0] = context.baseheight + 1;
tx.Outputs[0].Value = context.BLOCKSUBSIDY - context.HIGHFEE;
tx.Outputs[0].ScriptPubKey = new Script(OpcodeType.OP_1);
tx.LockTime = 0;
context.hash = tx.GetHash();
context.mempool.AddUnchecked(context.hash, context.entry.Fee(context.HIGHFEE).Time(context.DateTimeProvider.GetTime()).SpendsCoinbase(true).FromTx(tx));
Assert.True(MempoolValidator.CheckFinalTransaction(context.ChainIndexer, context.DateTimeProvider, tx, flags)); // Locktime passes
Assert.True(!this.TestSequenceLocks(context, context.ChainIndexer.Tip, tx, flags)); // Sequence locks fail
BlockHeader blockHeader = context.network.Consensus.ConsensusFactory.CreateBlockHeader();
blockHeader.HashPrevBlock = context.ChainIndexer.Tip.HashBlock;
blockHeader.Time = Utils.DateTimeToUnixTime(context.ChainIndexer.Tip.GetMedianTimePast()) + 1;
context.ChainIndexer.SetTip(blockHeader);
blockHeader = context.network.Consensus.ConsensusFactory.CreateBlockHeader();
blockHeader.HashPrevBlock = context.ChainIndexer.Tip.HashBlock;
blockHeader.Time = Utils.DateTimeToUnixTime(context.ChainIndexer.Tip.GetMedianTimePast()) + 1;
context.ChainIndexer.SetTip(blockHeader);
blockHeader = context.network.Consensus.ConsensusFactory.CreateBlockHeader();
blockHeader.HashPrevBlock = context.ChainIndexer.Tip.HashBlock;
blockHeader.Time = Utils.DateTimeToUnixTime(context.ChainIndexer.Tip.GetMedianTimePast()) + 1;
context.ChainIndexer.SetTip(blockHeader);
SequenceLock locks = tx.CalculateSequenceLocks(prevheights.ToArray(), context.ChainIndexer.Tip, flags);
Assert.True(locks.Evaluate(context.ChainIndexer.Tip)); // Sequence locks pass on 2nd block
}
