public async Task ResumeChainListenerFromHigher()
{
// root -> A -> B(invalidated) -> C
// resume from C to A
var c = _cli.RPCClient;
var blockSource = new BitcoinRPCBlockSource(c);
var rootBlock = await c.GetBestBlockAsync(GetBlockVerbosity.WithFullTx);
var listener = new DummyChainListener(rootBlock.Block, (uint)rootBlock.Height, _output);
GetBlockRPCResponse?oldTip = null;
for (int i = 0; i < 3; i++)
{
await c.GenerateToOwnAddressAsync(1);
oldTip = await c.GetBestBlockAsync(GetBlockVerbosity.WithFullTx);
listener.BlockConnected(oldTip.Block, (uint)oldTip.Height);
}
var blockB = await c.GetBlockHeaderAsync(rootBlock.Height + 2);
await c.InvalidateBlockAsync(blockB.GetHash());
var newTip = await c.GetBestBlockAsync(GetBlockVerbosity.WithFullTx);
await listener.SyncChainListener(oldTip?.Header.GetHash(), newTip.Header, (uint)newTip.Height, blockSource, Network.RegTest, _loggerFactory.CreateLogger(nameof(ResumeChainListenerFromHigher)));
Assert.True(listener.Blocks.Peek().ToBytes().SequenceEqual(newTip.Block.ToBytes()));
}
public async Task ResumeChainListenerFromLowerFork()
{
// root -> A(invalidated)
// \
// B -> C
// resume from A to C
var c = _cli.RPCClient;
var blockSource = new BitcoinRPCBlockSource(c);
var rootBlock = await c.GetBestBlockAsync(GetBlockVerbosity.WithFullTx);
var listener = new DummyChainListener(rootBlock.Block, (uint)rootBlock.Height, _output);
var addr = await c.GetNewAddressAsync();
await c.GenerateToAddressAsync(1, addr);
var oldTipHash = await c.GetBestBlockHashAsync();
var oldTip = await c.GetBlockAsync(oldTipHash, GetBlockVerbosity.WithFullTx);
listener.BlockConnected(oldTip.Block, (uint)oldTip.Height);
await c.InvalidateBlockAsync(oldTipHash);
addr = await c.GetNewAddressAsync();
await c.GenerateToAddressAsync(2, addr);
var newTipHash = await c.GetBestBlockHashAsync();
var newTip = await c.GetBlockAsync(newTipHash, GetBlockVerbosity.WithFullTx);
Assert.True(oldTip.Height < newTip.Height);
await listener.SyncChainListener(oldTipHash, newTip.Header, (uint)newTip.Height, blockSource, Network.RegTest, _loggerFactory.CreateLogger(nameof(ResumeChainListenerFromLowerFork)));
Assert.True(listener.Blocks.Peek().ToBytes().SequenceEqual(newTip.Block.ToBytes()));
var blockB = await c.GetBlockAsync(newTip.Block.Header.HashPrevBlock, GetBlockVerbosity.WithFullTx);
Assert.True(listener.Blocks.Peek().ToBytes().SequenceEqual(newTip.Block.ToBytes()));
Assert.True(listener.Blocks.Peek().ToBytes().SequenceEqual(newTip.Block.ToBytes()));
Assert.Equal(listener.Blocks.Count - 2, blockB.Height);
Assert.Equal(listener.Blocks.ElementAt(1).Header.GetHash(), blockB.Block.Header.GetHash());
Assert.True(listener.Blocks.ElementAt(1).ToBytes().SequenceEqual(blockB.Block.ToBytes()));
}