public void AllEntriesExpired()
{
var invalidBlockHashStore = new InvalidBlockHashStore(DateTimeProvider.Default, 6);
// Create some hashes that will be banned temporarily, but not after 5 seconds.
var hashesBannedTemporarily = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000011"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000012"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000013"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000014"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000015"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000016"),
};
foreach (uint256 hash in hashesBannedTemporarily)
{
invalidBlockHashStore.MarkInvalid(hash, DateTime.UtcNow.AddMilliseconds(rng.Next(2000, 5000)));
}
// Check all hashes are banned now.
foreach (uint256 hash in hashesBannedTemporarily)
{
Assert.True(invalidBlockHashStore.IsInvalid(hash));
}
// Wait 5 seconds and touch all the entries, so they are removed from the store's dictionary.
Thread.Sleep(5000);
// Check all hashes are no longer banned.
foreach (uint256 hash in hashesBannedTemporarily)
{
Assert.False(invalidBlockHashStore.IsInvalid(hash));
}
// Add a new hash, which should remove all the other entries from the store's circular array as well.
uint256 lastHash = uint256.Parse("0000000000000000000000000000000000000000000000000000000000000031");
invalidBlockHashStore.MarkInvalid(lastHash);
// Check all removed hashes are no longer banned.
foreach (uint256 hash in hashesBannedTemporarily)
{
Assert.False(invalidBlockHashStore.IsInvalid(hash));
}
// Check the number of entries is now 1.
var orderedHashList = invalidBlockHashStore.GetMemberValue("orderedHashList") as CircularArray <uint256>;
Assert.Equal(1, orderedHashList.Count);
// Check the last entry is banned.
Assert.True(invalidBlockHashStore.IsInvalid(lastHash));
}
public void MarkBlockInvalid_PermanentAndTemporaryBans()
{
var fullNode = new Mock <IFullNode>();
fullNode.Setup(f => f.NodeService <IDateTimeProvider>(true))
.Returns(DateTimeProvider.Default);
var store = new InvalidBlockHashStore(DateTimeProvider.Default);
// Create some hashes that will be banned forever.
var hashesBannedPermanently = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000001"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000002"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000003"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000004"),
};
foreach (uint256 hash in hashesBannedPermanently)
{
store.MarkInvalid(hash);
}
// Create some hashes that will be banned now, but not in 5 seconds.
var hashesBannedTemporarily1 = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000011"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000012"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000013"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000014"),
};
foreach (uint256 hash in hashesBannedTemporarily1)
{
store.MarkInvalid(hash, DateTime.UtcNow.AddMilliseconds(rng.Next(2000, 5000)));
}
// Create some hashes that will be banned now and also after 5 seconds.
var hashesBannedTemporarily2 = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000021"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000022"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000023"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000024"),
};
foreach (uint256 hash in hashesBannedTemporarily2)
{
store.MarkInvalid(hash, DateTime.UtcNow.AddMilliseconds(rng.Next(20000, 50000)));
}
// Check that all hashes we have generated are banned now.
var allHashes = new List <uint256>(hashesBannedPermanently);
allHashes.AddRange(hashesBannedTemporarily1);
allHashes.AddRange(hashesBannedTemporarily2);
foreach (uint256 hash in allHashes)
{
Assert.True(store.IsInvalid(hash));
}
// Wait 5 seconds and then check if hashes from first temporary group are no longer banned and all others still are.
Thread.Sleep(5000);
foreach (uint256 hash in allHashes)
{
uint num = hash.GetLow32();
bool isSecondGroup = (0x10 <= num) && (num < 0x20);
Assert.Equal(!isSecondGroup, store.IsInvalid(hash));
}
}
public void ReachingStoreCapacity_RemovesOldestEntries()
{
var invalidBlockHashStore = new InvalidBlockHashStore(DateTimeProvider.Default, 10);
// Create some hashes that will be banned forever.
var hashesBannedPermanently = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000001"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000002"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000003"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000004"),
};
foreach (uint256 hash in hashesBannedPermanently)
{
invalidBlockHashStore.MarkInvalid(hash);
}
// Create some hashes that will be banned.
var hashesBannedTemporarily1 = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000011"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000012"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000013"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000014"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000015"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000016"),
};
foreach (uint256 hash in hashesBannedTemporarily1)
{
invalidBlockHashStore.MarkInvalid(hash, DateTime.UtcNow.AddMilliseconds(rng.Next(2000, 5000)));
}
// Check that all hashes we have generated are banned now.
var allHashes = new List <uint256>(hashesBannedPermanently);
allHashes.AddRange(hashesBannedTemporarily1);
foreach (uint256 hash in allHashes)
{
Assert.True(invalidBlockHashStore.IsInvalid(hash));
}
// Add two more hashes that will be banned.
var hashesBannedTemporarily2 = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000031"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000032"),
};
foreach (uint256 hash in hashesBannedTemporarily2)
{
invalidBlockHashStore.MarkInvalid(hash, DateTime.UtcNow.AddMilliseconds(rng.Next(20000, 50000)));
}
// As the capacity is just 10, the first two hashes should no longer be banned at this point.
Assert.False(invalidBlockHashStore.IsInvalid(hashesBannedPermanently[0]));
Assert.False(invalidBlockHashStore.IsInvalid(hashesBannedPermanently[1]));
// And all other hashes are still banned.
var allBannedHashes = new List <uint256>();
allBannedHashes.Add(hashesBannedPermanently[2]);
allBannedHashes.Add(hashesBannedPermanently[3]);
allBannedHashes.AddRange(hashesBannedTemporarily1);
allBannedHashes.AddRange(hashesBannedTemporarily2);
foreach (uint256 hash in allBannedHashes)
{
Assert.True(invalidBlockHashStore.IsInvalid(hash));
}
}
public void ReachingStoreCapacity_CircularArraySkipsExpiredEntries()
{
var invalidBlockHashStore = new InvalidBlockHashStore(DateTimeProvider.Default, 10);
// Create some hashes that will be banned forever.
var hashesBannedPermanently1 = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000001"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000002"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000003"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000004"),
};
foreach (uint256 hash in hashesBannedPermanently1)
{
invalidBlockHashStore.MarkInvalid(hash);
}
// Create some hashes that will be banned temporarily, but not after 5 seconds.
var hashesBannedTemporarily = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000011"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000012"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000013"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000014"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000015"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000016"),
};
foreach (uint256 hash in hashesBannedTemporarily)
{
invalidBlockHashStore.MarkInvalid(hash, DateTime.UtcNow.AddMilliseconds(rng.Next(2000, 5000)));
}
// Add more forever bans.
var hashesBannedPermanently2 = new uint256[]
{
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000021"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000022"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000023"),
uint256.Parse("0000000000000000000000000000000000000000000000000000000000000024"),
};
foreach (uint256 hash in hashesBannedPermanently2)
{
invalidBlockHashStore.MarkInvalid(hash);
}
// Now check that all hashes from the first group are no longer banned and all others still are.
var allBannedHashes = new List <uint256>(hashesBannedTemporarily);
allBannedHashes.AddRange(hashesBannedPermanently2);
foreach (uint256 hash in hashesBannedPermanently1)
{
Assert.False(invalidBlockHashStore.IsInvalid(hash));
}
foreach (uint256 hash in allBannedHashes)
{
Assert.True(invalidBlockHashStore.IsInvalid(hash));
}
// Now we wait 5 seconds and touch the first four temporarily banned hashes,
// which should remove them from the dictionary.
Thread.Sleep(5000);
Assert.False(invalidBlockHashStore.IsInvalid(hashesBannedTemporarily[0]));
Assert.False(invalidBlockHashStore.IsInvalid(hashesBannedTemporarily[1]));
Assert.False(invalidBlockHashStore.IsInvalid(hashesBannedTemporarily[2]));
Assert.False(invalidBlockHashStore.IsInvalid(hashesBannedTemporarily[3]));
// Then we add a new hash, which should remove the four hashes from the circular array as well.
invalidBlockHashStore.MarkInvalid(uint256.Parse("0000000000000000000000000000000000000000000000000000000000000031"));
Assert.Equal(6, invalidBlockHashStore.orderedHashList.Count);
}