public void CheckNextChainedBlockExists_WithNextChainedBlock_Exists_SetStoreTipAndBlockHash()
{
var blocks = this.CreateBlocks(5);
using (var fluent = new FluentBlockStoreLoop())
{
fluent.WithConcreteRepository(Path.Combine(AppContext.BaseDirectory, "BlockStore", "CheckNextChainedBlockExists_Integration"));
// Push 5 blocks to the repository
fluent.BlockRepository.PutAsync(blocks.Last().GetHash(), blocks).GetAwaiter().GetResult();
// The chain has 4 blocks appended
var chain = new ConcurrentChain(blocks[0].Header);
this.AppendBlocksToChain(chain, blocks.Skip(1).Take(3));
// Create the last chained block without appending to the chain
var block03 = chain.GetBlock(blocks[3].GetHash());
var block04 = new ChainedBlock(blocks[4].Header, blocks[4].Header.GetHash(), block03);
fluent.Create(chain);
Assert.Null(fluent.Loop.StoreTip);
var nextChainedBlock = block04;
var checkExistsStep = new CheckNextChainedBlockExistStep(fluent.Loop, this.loggerFactory);
checkExistsStep.ExecuteAsync(nextChainedBlock, new CancellationToken(), false).GetAwaiter().GetResult();
Assert.Equal(fluent.Loop.StoreTip.Header.GetHash(), block04.Header.GetHash());
Assert.Equal(fluent.Loop.BlockRepository.BlockHash, block04.Header.GetHash());
}
}
public void ProcessPendingStorage_PushToRepo_BeforeDownloadingNewBlocks()
{
var blocks = this.CreateBlocks(15);
using (var fluent = new FluentBlockStoreLoop().AsIBD())
{
fluent.WithConcreteRepository(Path.Combine(AppContext.BaseDirectory, "BlockStore", "ProcessPendingStorage_Integration"));
// Push 5 blocks to the repository
fluent.BlockRepository.PutAsync(blocks.Take(5).Last().GetHash(), blocks.Take(5).ToList()).GetAwaiter().GetResult();
// The chain has 15 blocks appended
var chain = new ConcurrentChain(blocks[0].Header);
this.AppendBlocksToChain(chain, blocks.Skip(1).Take(14));
// Create block store loop
fluent.Create(chain);
//Set the store's tip
fluent.Loop.SetStoreTip(fluent.Loop.Chain.GetBlock(blocks.Take(5).Last().GetHash()));
// Add chained blocks 5 - 14 to PendingStorage
for (int i = 5; i <= 14; i++)
{
this.AddBlockToPendingStorage(fluent.Loop, blocks[i]);
}
//Start processing pending blocks from block 5
var nextChainedBlock = fluent.Loop.Chain.GetBlock(blocks[5].GetHash());
var processPendingStorageStep = new ProcessPendingStorageStep(fluent.Loop, this.loggerFactory);
processPendingStorageStep.ExecuteAsync(nextChainedBlock, new CancellationToken(), false).GetAwaiter().GetResult();
Assert.Equal(blocks[14].GetHash(), fluent.Loop.BlockRepository.BlockHash);
Assert.Equal(blocks[14].GetHash(), fluent.Loop.StoreTip.HashBlock);
}
}
public void ReorganiseBlockRepository_WithBlockRepositoryAndChainOutofSync_ReorganiseBlocks()
{
var blocks = this.CreateBlocks(15);
using (var fluent = new FluentBlockStoreLoop())
{
fluent.WithConcreteRepository(Path.Combine(AppContext.BaseDirectory, "BlockStore", "ReorganiseBlockRepository_Integration"));
// Push 15 blocks to the repository
fluent.BlockRepository.PutAsync(blocks.Last().GetHash(), blocks).GetAwaiter().GetResult();
// The chain has 10 blocks appended
var chain = new ConcurrentChain(blocks[0].Header);
this.AppendBlocksToChain(chain, blocks.Skip(1).Take(9));
// Create the last 5 chained blocks without appending to the chain
var block9 = chain.GetBlock(blocks[9].Header.GetHash());
var block10 = new ChainedBlock(blocks[10].Header, blocks[10].Header.GetHash(), block9);
var block11 = new ChainedBlock(blocks[11].Header, blocks[11].Header.GetHash(), block10);
var block12 = new ChainedBlock(blocks[12].Header, blocks[12].Header.GetHash(), block11);
var block13 = new ChainedBlock(blocks[13].Header, blocks[13].Header.GetHash(), block12);
var block14 = new ChainedBlock(blocks[14].Header, blocks[14].Header.GetHash(), block13);
fluent.Create(chain);
fluent.Loop.SetStoreTip(block14);
Assert.Equal(fluent.Loop.StoreTip.Header.GetHash(), block14.Header.GetHash());
Assert.Equal(fluent.Loop.BlockRepository.BlockHash, block14.Header.GetHash());
var nextChainedBlock = block10;
var reorganiseStep = new ReorganiseBlockRepositoryStep(fluent.Loop, this.loggerFactory);
reorganiseStep.ExecuteAsync(nextChainedBlock, new CancellationToken(), false).GetAwaiter().GetResult();
Assert.Equal(fluent.Loop.StoreTip.Header.GetHash(), block10.Previous.Header.GetHash());
Assert.Equal(fluent.Loop.BlockRepository.BlockHash, block10.Previous.Header.GetHash());
}
}
public void DownloadBlockStep_WithNewBlocksToDownload_DownloadBlocksAndPushToRepo()
{
var blocks = this.CreateBlocks(10);
using (var fluent = new FluentBlockStoreLoop())
{
fluent.WithConcreteRepository(Path.Combine(AppContext.BaseDirectory, "BlockStore", "DownloadBlocks_Integration"));
// Push 5 blocks to the repository
fluent.BlockRepository.PutAsync(blocks.Take(5).Last().GetHash(), blocks.Take(5).ToList()).GetAwaiter().GetResult();
// The chain has 10 blocks appended
var chain = new ConcurrentChain(blocks[0].Header);
this.AppendBlocksToChain(chain, blocks.Skip(1).Take(9));
// Create block store loop
fluent.Create(chain);
// Push blocks 5 - 9 to the downloaded blocks collection
for (int i = 5; i <= 9; i++)
{
fluent.Loop.BlockPuller.InjectBlock(blocks[i].GetHash(), new DownloadedBlock {
Length = blocks[i].GetSerializedSize(), Block = blocks[i]
}, new CancellationToken());
}
// Start processing blocks to download from block 5
var nextChainedBlock = fluent.Loop.Chain.GetBlock(blocks[5].GetHash());
var step = new DownloadBlockStep(fluent.Loop, this.loggerFactory, DateTimeProvider.Default);
step.ExecuteAsync(nextChainedBlock, new CancellationToken(), false).GetAwaiter().GetResult();
Assert.Equal(blocks[9].GetHash(), fluent.Loop.BlockRepository.BlockHash);
Assert.Equal(blocks[9].GetHash(), fluent.Loop.StoreTip.HashBlock);
}
}