public void TestTransactionsWithCache()
{
string testFolder = TestUtils.PrepareTestFolder(GetType(), nameof(TestTransactionsWithCache), "*.db");
using (SQLiteBlockchainStorage storage = SQLiteBlockchainStorage.Open(testFolder))
{
CachingBlockchainStorage cache = new CachingBlockchainStorage(storage);
StoredBlockBuilder blockBuilder = new StoredBlockBuilder(GenesisBlock.GetHeader());
blockBuilder.IsInBestHeaderChain = true;
blockBuilder.IsInBestBlockChain = false;
StoredBlock block = blockBuilder.Build();
Assert.Throws<InvalidOperationException>(() => cache.AddBlock(block));
using (new TransactionScope(TransactionScopeOption.Required))
{
cache.AddBlock(block);
Assert.That(cache.FindBlockByHash(block.Hash), Is.Not.Null);
Assert.That(cache.FindSubchain(block.Hash, 10), Is.Not.Null);
}
Assert.That(cache.FindBlockByHash(block.Hash), Is.Null);
Assert.That(cache.FindSubchain(block.Hash, 10), Is.Null);
using (var tx = new TransactionScope(TransactionScopeOption.Required))
{
cache.AddBlock(block);
tx.Complete();
}
Assert.That(cache.FindBlockByHash(block.Hash), Is.Not.Null);
Assert.That(cache.FindSubchain(block.Hash, 10), Is.Not.Null);
blockBuilder = new StoredBlockBuilder(block);
blockBuilder.IsInBestBlockChain = true;
block = blockBuilder.Build();
Assert.Throws<InvalidOperationException>(() => cache.UpdateBlock(block));
using (new TransactionScope(TransactionScopeOption.Required))
{
cache.UpdateBlock(block);
Assert.True(cache.FindBlockByHash(block.Hash).IsInBestBlockChain);
Assert.True(cache.FindSubchain(block.Hash, 10).GetBlockByOffset(0).IsInBestBlockChain);
}
Assert.False(cache.FindBlockByHash(block.Hash).IsInBestBlockChain);
Assert.False(cache.FindSubchain(block.Hash, 10).GetBlockByOffset(0).IsInBestBlockChain);
using (var tx = new TransactionScope(TransactionScopeOption.Required))
{
cache.UpdateBlock(block);
tx.Complete();
}
Assert.True(cache.FindBlockByHash(block.Hash).IsInBestBlockChain);
Assert.True(cache.FindSubchain(block.Hash, 10).GetBlockByOffset(0).IsInBestBlockChain);
Assert.Throws<InvalidOperationException>(() => cache.AddBlockContent(block.Hash, GenesisBlock.Raw));
using (new TransactionScope(TransactionScopeOption.Required))
{
cache.AddBlockContent(block.Hash, GenesisBlock.Raw);
Assert.True(cache.FindBlockByHash(block.Hash).HasContent);
Assert.True(cache.FindSubchain(block.Hash, 10).GetBlockByOffset(0).HasContent);
}
Assert.False(cache.FindBlockByHash(block.Hash).HasContent);
Assert.False(cache.FindSubchain(block.Hash, 10).GetBlockByOffset(0).HasContent);
using (var tx = new TransactionScope(TransactionScopeOption.Required))
{
cache.AddBlockContent(block.Hash, GenesisBlock.Raw);
tx.Complete();
}
Assert.True(cache.FindBlockByHash(block.Hash).HasContent);
Assert.True(cache.FindSubchain(block.Hash, 10).GetBlockByOffset(0).HasContent);
}
}
public void TestTransactionsWithInternalBlockchain()
{
string testFolder = TestUtils.PrepareTestFolder(GetType(), nameof(TestTransactionsWithInternalBlockchain), "*.db");
using (SQLiteBlockchainStorage storage = SQLiteBlockchainStorage.Open(testFolder))
{
CachingBlockchainStorage cache = new CachingBlockchainStorage(storage);
InternalBlockchain blockchain = new InternalBlockchain(cache);
using (var tx = new TransactionScope(TransactionScopeOption.Required))
{
blockchain.Init();
tx.Complete();
}
using (new TransactionScope(TransactionScopeOption.Required))
{
Assert.That(blockchain.CommitedState.BestHeader.Height, Is.EqualTo(0));
Assert.That(blockchain.CommitedState.BestChain.Height, Is.EqualTo(0));
blockchain.AddHeaders(new List<StoredBlock> {new StoredBlockBuilder(BitcoinStreamReader.FromBytes(KnownBlocks.Block1, BlockHeader.Read)).Build()});
}
using (var tx = new TransactionScope(TransactionScopeOption.Required))
{
Assert.That(blockchain.CommitedState.BestHeader.Height, Is.EqualTo(0));
Assert.That(blockchain.CommitedState.BestChain.Height, Is.EqualTo(0));
blockchain.AddHeaders(new List<StoredBlock> {new StoredBlockBuilder(BitcoinStreamReader.FromBytes(KnownBlocks.Block1, BlockHeader.Read)).Build()});
tx.Complete();
}
using (new TransactionScope(TransactionScopeOption.Required))
{
Assert.That(blockchain.CommitedState.BestHeader.Height, Is.EqualTo(1));
Assert.That(blockchain.CommitedState.BestChain.Height, Is.EqualTo(0));
}
}
}
public Blockchain(IBlockchainStorage storage)
{
CachingBlockchainStorage cache = new CachingBlockchainStorage(storage);
blockchain = new InternalBlockchain(cache);
}