public void OutPointCacheCanRetrieveExisting()
{
const string CollectionName = "DummyCollection";
var dataFolder = new DataFolder(TestBase.CreateTestDir(this));
string dbPath = Path.Combine(dataFolder.RootPath, CollectionName);
FileMode fileMode = RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ? FileMode.Exclusive : FileMode.Shared;
var database = new LiteDatabase(new ConnectionString()
{
Filename = dbPath, Mode = fileMode
});
var cache = new AddressIndexerOutpointsRepository(database, new ExtendedLoggerFactory());
var outPoint = new OutPoint(uint256.Parse("0000af9ab2c8660481328d0444cf167dfd31f24ca2dbba8e5e963a2434cffa93"), 0);
var data = new OutPointData()
{
Outpoint = outPoint.ToString(), ScriptPubKeyBytes = new byte[] { 0, 0, 0, 0 }, Money = Money.Coins(1)
};
cache.AddOutPointData(data);
Assert.True(cache.TryGetOutPointData(outPoint, out OutPointData retrieved));
Assert.NotNull(retrieved);
Assert.Equal(outPoint.ToString(), retrieved.Outpoint);
}
public void OutPointCacheEvicts()
{
const string CollectionName = "OutputsData";
var dataFolder = new DataFolder(TestBase.CreateTestDir(this));
string dbPath = Path.Combine(dataFolder.RootPath, CollectionName);
var database = new LiteDatabase(new ConnectionString()
{
Filename = dbPath, Upgrade = true
});
var cache = new AddressIndexerOutpointsRepository(database, new ExtendedLoggerFactory(), 2);
Assert.Equal(0, cache.Count);
Assert.Equal(0, database.GetCollection <OutPointData>(CollectionName).Count());
var outPoint1 = new OutPoint(uint256.Parse("0000af9ab2c8660481328d0444cf167dfd31f24ca2dbba8e5e963a2434cffa93"), 1);;
var pair1 = new OutPointData()
{
Outpoint = outPoint1.ToString(), ScriptPubKeyBytes = new byte[] { 0, 0, 0, 0 }, Money = Money.Coins(1)
};
cache.AddOutPointData(pair1);
Assert.Equal(1, cache.Count);
Assert.Equal(0, database.GetCollection <OutPointData>(CollectionName).Count());
var outPoint2 = new OutPoint(uint256.Parse("cf8ce1419bbc4870b7d4f1c084534d91126dd3283b51ec379e0a20e27bd23633"), 2);;
var pair2 = new OutPointData()
{
Outpoint = outPoint2.ToString(), ScriptPubKeyBytes = new byte[] { 1, 1, 1, 1 }, Money = Money.Coins(2)
};
cache.AddOutPointData(pair2);
Assert.Equal(2, cache.Count);
Assert.Equal(0, database.GetCollection <OutPointData>(CollectionName).Count());
var outPoint3 = new OutPoint(uint256.Parse("126dd3283b51ec379e0a20e27bd23633cf8ce1419bbc4870b7d4f1c084534d91"), 3);;
var pair3 = new OutPointData()
{
Outpoint = outPoint3.ToString(), ScriptPubKeyBytes = new byte[] { 2, 2, 2, 2 }, Money = Money.Coins(3)
};
cache.AddOutPointData(pair3);
Assert.Equal(2, cache.Count);
// One of the cache items should have been evicted, and will therefore be persisted on disk.
Assert.Equal(1, database.GetCollection <OutPointData>(CollectionName).Count());
// The evicted item should be pair1.
Assert.Equal(pair1.ScriptPubKeyBytes, database.GetCollection <OutPointData>(CollectionName).FindAll().First().ScriptPubKeyBytes);
// It should still be possible to retrieve pair1 from the cache (it will pull it from disk).
Assert.True(cache.TryGetOutPointData(outPoint1, out OutPointData pair1AfterEviction));
Assert.NotNull(pair1AfterEviction);
Assert.Equal(pair1.ScriptPubKeyBytes, pair1AfterEviction.ScriptPubKeyBytes);
Assert.Equal(pair1.Money, pair1AfterEviction.Money);
}
public void CanRewind()
{
var rewindDataBlockHash = new uint256(RandomUtils.GetUInt64());
var outPoint = new OutPoint(new uint256(RandomUtils.GetUInt64()), 1);
var data = new OutPointData()
{
Outpoint = outPoint.ToString(), Money = 1, ScriptPubKeyBytes = RandomUtils.GetBytes(20)
};
var rewindData = new AddressIndexerRewindData()
{
BlockHash = rewindDataBlockHash.ToString(),
BlockHeight = 100,
SpentOutputs = new List <OutPointData>()
{
data
}
};
this.repository.RecordRewindData(rewindData);
Assert.False(this.repository.TryGetOutPointData(outPoint, out OutPointData dataOut));
this.repository.Rewind(rewindDataBlockHash);
Assert.True(this.repository.TryGetOutPointData(outPoint, out dataOut));
// Now record and purge rewind data.
this.repository.RecordRewindData(rewindData);
this.repository.RemoveOutPointData(outPoint);
Assert.False(this.repository.TryGetOutPointData(outPoint, out dataOut));
this.repository.PurgeOldRewindData(rewindData.BlockHeight + 1);
Assert.Throws <Exception>(() => this.repository.Rewind(rewindDataBlockHash));
Assert.False(this.repository.TryGetOutPointData(outPoint, out dataOut));
}
public void CanAddAndRemoveOutpointData()
{
var outPoint = new OutPoint(new uint256(RandomUtils.GetUInt64()), 1);
var data = new OutPointData()
{
Outpoint = outPoint.ToString(), Money = 1, ScriptPubKeyBytes = RandomUtils.GetBytes(20)
};
this.repository.AddOutPointData(data);
// Add more to trigger eviction.
for (int i = 0; i < this.maxItems * 2; i++)
{
this.repository.AddOutPointData(new OutPointData()
{
Outpoint = this.RandomString(20)
});
}
Assert.True(this.repository.TryGetOutPointData(outPoint, out OutPointData dataOut));
Assert.True(data.ScriptPubKeyBytes.SequenceEqual(dataOut.ScriptPubKeyBytes));
}
