public void TestDBreezeInsertOrder()
{
using (NodeContext ctx = NodeContext.Create())
{
using (var engine = new DBreeze.DBreezeEngine(ctx.FolderName + "/2"))
{
var data = new[]
{
new uint256(3),
new uint256(2),
new uint256(2439425),
new uint256(5),
new uint256(243945),
new uint256(10),
new uint256(Hashes.Hash256(new byte[0])),
new uint256(Hashes.Hash256(new byte[] { 1 })),
new uint256(Hashes.Hash256(new byte[] { 2 })),
};
Array.Sort(data, new UInt256Comparer());
using (var tx = engine.GetTransaction())
{
foreach (var d in data)
{
tx.Insert("Table", d.ToBytes(false), d.ToBytes());
}
tx.Commit();
}
var data2 = new uint256[data.Length];
using (var tx = engine.GetTransaction())
{
int i = 0;
foreach (var row in tx.SelectForward <byte[], byte[]>("Table"))
{
data2[i++] = new uint256(row.Key, false);
}
}
Assert.True(data.SequenceEqual(data2));
}
}
}
public void TestDBreezeSerialization()
{
using (NodeContext ctx = NodeContext.Create())
{
var genesis = ctx.Network.GetGenesis();
var genesisChainedBlock = new ChainedBlock(genesis.Header, ctx.Network.GenesisHash, 0);
var chained = this.MakeNext(genesisChainedBlock, ctx.Network);
ctx.PersistentCoinView.SaveChangesAsync(new UnspentOutputs[] { new UnspentOutputs(genesis.Transactions[0].GetHash(), new Coins(genesis.Transactions[0], 0)) }, null, genesisChainedBlock.HashBlock, chained.HashBlock).Wait();
Assert.NotNull(ctx.PersistentCoinView.FetchCoinsAsync(new[] { genesis.Transactions[0].GetHash() }).Result.UnspentOutputs[0]);
Assert.Null(ctx.PersistentCoinView.FetchCoinsAsync(new[] { new uint256() }).Result.UnspentOutputs[0]);
var previous = chained;
chained = this.MakeNext(this.MakeNext(genesisChainedBlock, ctx.Network), ctx.Network);
chained = this.MakeNext(this.MakeNext(genesisChainedBlock, ctx.Network), ctx.Network);
ctx.PersistentCoinView.SaveChangesAsync(new UnspentOutputs[0], null, previous.HashBlock, chained.HashBlock).Wait();
Assert.Equal(chained.HashBlock, ctx.PersistentCoinView.GetBlockHashAsync().GetAwaiter().GetResult());
ctx.ReloadPersistentCoinView();
Assert.Equal(chained.HashBlock, ctx.PersistentCoinView.GetBlockHashAsync().GetAwaiter().GetResult());
Assert.NotNull(ctx.PersistentCoinView.FetchCoinsAsync(new[] { genesis.Transactions[0].GetHash() }).Result.UnspentOutputs[0]);
Assert.Null(ctx.PersistentCoinView.FetchCoinsAsync(new[] { new uint256() }).Result.UnspentOutputs[0]);
}
}
public void CanRewind()
{
using (NodeContext ctx = NodeContext.Create())
{
var cacheCoinView = new CachedCoinView(ctx.PersistentCoinView, DateTimeProvider.Default, this.loggerFactory);
var tester = new CoinViewTester(cacheCoinView);
var coins = tester.CreateCoins(5);
var coin = tester.CreateCoins(1);
// 1
var h1 = tester.NewBlock();
cacheCoinView.FlushAsync().Wait();
Assert.True(tester.Exists(coins[2]));
Assert.True(tester.Exists(coin[0]));
tester.Spend(coins[2]);
tester.Spend(coin[0]);
//2
tester.NewBlock();
//3
tester.NewBlock();
//4
var coin2 = tester.CreateCoins(1);
tester.NewBlock();
Assert.True(tester.Exists(coins[0]));
Assert.True(tester.Exists(coin2[0]));
Assert.False(tester.Exists(coins[2]));
Assert.False(tester.Exists(coin[0]));
//1
tester.Rewind();
Assert.False(tester.Exists(coin2[0]));
Assert.True(tester.Exists(coins[2]));
Assert.True(tester.Exists(coin[0]));
tester.Spend(coins[2]);
tester.Spend(coin[0]);
//2
var h2 = tester.NewBlock();
cacheCoinView.FlushAsync().Wait();
Assert.False(tester.Exists(coins[2]));
Assert.False(tester.Exists(coin[0]));
//1
Assert.True(h1 == tester.Rewind());
Assert.True(tester.Exists(coins[2]));
Assert.True(tester.Exists(coin[0]));
var coins2 = tester.CreateCoins(7);
tester.Spend(coins2[0]);
coin2 = tester.CreateCoins(1);
tester.Spend(coin2[0]);
//2
tester.NewBlock();
Assert.True(tester.Exists(coins2[1]));
Assert.False(tester.Exists(coins2[0]));
cacheCoinView.FlushAsync().Wait();
//3
tester.NewBlock();
//2
tester.Rewind();
Assert.True(tester.Exists(coins2[1]));
Assert.False(tester.Exists(coins2[0]));
Assert.False(tester.Exists(coin2[0]));
Assert.True(tester.Exists(coins[2]));
Assert.True(tester.Exists(coin[0]));
}
}