public ScenarioBuilder IfThisNodeJustFinishedFastBlocksAndFastSync()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number - MultiSyncModeSelector.FastSyncLag);
SyncProgressResolver.FindBestFullBlock().Returns(0);
SyncProgressResolver.FindBestFullState().Returns(0);
SyncProgressResolver.FindBestProcessedBlock().Returns(0);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns(UInt256.Zero);
return("just after fast blocks and fast sync");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeFinishedStateSyncButNotFastBlocks()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number - MultiSyncModeSelector.FastSyncLag);
SyncProgressResolver.FindBestFullBlock().Returns(0);
SyncProgressResolver.FindBestFullState().Returns(ChainHead.Number - MultiSyncModeSelector.FastSyncLag);
SyncProgressResolver.FindBestProcessedBlock().Returns(0);
SyncProgressResolver.IsFastBlocksFinished().Returns(false);
SyncProgressResolver.ChainDifficulty.Returns(UInt256.Zero);
return("just finished state sync but not fast blocks");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeJustFinishedStateSyncButNeedsToCatchUpToHeaders()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number - MultiSyncModeSelector.FastSyncLag);
SyncProgressResolver.FindBestFullBlock().Returns(0);
SyncProgressResolver.FindBestFullState().Returns(ChainHead.Number - MultiSyncModeSelector.FastSyncLag - 7);
SyncProgressResolver.FindBestProcessedBlock().Returns(0);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns(UInt256.Zero);
return("just finished state sync and needs to catch up");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeJustCameBackFromBeingOfflineForLongTimeAndFinishedFastSyncCatchUp()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullBlock().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullState().Returns(ChainHead.Number - FastSyncCatchUpHeightDelta - 1);
SyncProgressResolver.FindBestProcessedBlock().Returns(ChainHead.Number - FastSyncCatchUpHeightDelta - 1);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns(UInt256.Zero);
return("mid fast sync");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeFinishedFastBlocksButNotFastSync()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(Pivot.Number + 16);
SyncProgressResolver.FindBestFullBlock().Returns(0);
SyncProgressResolver.FindBestFullState().Returns(0);
SyncProgressResolver.FindBestProcessedBlock().Returns(0);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns(UInt256.Zero);
return("mid fast sync");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeIsInTheMiddleOfFastSyncAndFastBlocks()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(Pivot.Number + 16);
SyncProgressResolver.FindBestFullBlock().Returns(0);
SyncProgressResolver.FindBestFullState().Returns(0);
SyncProgressResolver.FindBestProcessedBlock().Returns(0);
SyncProgressResolver.IsFastBlocksFinished().Returns(false);
SyncProgressResolver.ChainDifficulty.Returns(UInt256.Zero);
return("mid fast sync and fast blocks");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeIsProcessingAlreadyDownloadedBlocksInFullSync()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullBlock().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullState().Returns(ChainHead.Number - FastSyncCatchUpHeightDelta + 1);
SyncProgressResolver.FindBestProcessedBlock().Returns(ChainHead.Number - FastSyncCatchUpHeightDelta + 1);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns(ChainHead.TotalDifficulty ?? 0);
return("fully syncing");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeIsFullySynced()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullBlock().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullState().Returns(ChainHead.Number);
SyncProgressResolver.FindBestProcessedBlock().Returns(ChainHead.Number);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns(ChainHead.TotalDifficulty ?? 0);
return("fully synced node");
}
);
return(this);
}
/// <summary>
/// Empty clique chains do not update state root on empty blocks (no block reward)
/// </summary>
/// <returns></returns>
public ScenarioBuilder IfThisNodeRecentlyStartedFullSyncProcessingOnEmptyCliqueChain()
{
// so the state root check can think that state root is after processed
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullBlock().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullState().Returns(ChainHead.Number - MultiSyncModeSelector.FastSyncLag + 1);
SyncProgressResolver.FindBestProcessedBlock().Returns(ChainHead.Number - MultiSyncModeSelector.FastSyncLag);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns((UInt256)ChainHead.Number - MultiSyncModeSelector.FastSyncLag);
return("recently started full sync on empty clique chain");
}
);
return(this);
}
public ScenarioBuilder IfTheSyncProgressIsCorrupted()
{
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullBlock().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullState().Returns(ChainHead.Number - 1);
SyncProgressResolver.FindBestProcessedBlock().Returns(ChainHead.Number);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns((UInt256)ChainHead.Number);
return("corrupted progress");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeNearlyNeedsAFastSyncCatchUp()
{
long currentBlock = ChainHead.Number - FastSyncCatchUpHeightDelta + 1;
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(currentBlock);
SyncProgressResolver.FindBestFullBlock().Returns(currentBlock);
SyncProgressResolver.FindBestFullState().Returns(currentBlock);
SyncProgressResolver.FindBestProcessedBlock().Returns(currentBlock);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns((UInt256)currentBlock);
return("fast sync catch up");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeRecentlyStartedFullSyncProcessing()
{
long currentBlock = ChainHead.Number - MultiSyncModeSelector.FastSyncLag / 2;
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullBlock().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullState().Returns(currentBlock);
SyncProgressResolver.FindBestProcessedBlock().Returns(currentBlock);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns((UInt256)currentBlock);
return("recently started full sync");
}
);
return(this);
}
public ScenarioBuilder IfThisNodeHasStateThatIsFarInThePast()
{
// this is a scenario when we actually have state but the lookup depth is limiting
// our ability to find out at what level the state is
long currentBlock = ChainHead.Number - FastSyncCatchUpHeightDelta - 16;
_syncProgressSetups.Add(
() =>
{
SyncProgressResolver.FindBestHeader().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullBlock().Returns(ChainHead.Number);
SyncProgressResolver.FindBestFullState().Returns(0);
SyncProgressResolver.FindBestProcessedBlock().Returns(currentBlock);
SyncProgressResolver.IsFastBlocksFinished().Returns(true);
SyncProgressResolver.ChainDifficulty.Returns((UInt256)currentBlock);
return("fast sync catch up");
}
);
return(this);
}