public void EnumerateAndCheckTipBlock()
{
var store = new BlockStore(TestDataLocations.BlockFolderLocation, Network.PurpleMain);
// use the synchronize chain method to load all blocks and look for the tip (currently block 100k)
var block100K = uint256.Parse("af380a53467b70bc5d1ee61441586398a0a5907bb4fad7855442575483effa54");
ConcurrentChain chain = store.GetPurpleChain();
ChainedBlock lastblk = chain.GetBlock(block100K);
Assert.Equal(block100K, lastblk.Header.GetHash());
Assert.Equal(100000, lastblk.Height);
}
public void CanCalculateDifficulty()
{
var histories = File.ReadAllLines(TestDataLocations.DataFolder(@"targethistory.csv"));
var store = new BlockStore(TestDataLocations.BlockFolderLocation, Network.PurpleMain);
// todo: load the chain with a header only file
ConcurrentChain chain = store.GetPurpleChain();
var stakeChain = new MemoryStakeChain(Network.PurpleMain);
var indexStore = new IndexedBlockStore(new InMemoryNoSqlRepository(), store);
var reindexed = indexStore.ReIndex();
Assert.Equal(103952, reindexed);
var lastIndex = 0;
foreach (var history in histories)
{
var height = int.Parse(history.Split(',')[0]);
var expectedTarget = new Target(new BigInteger(history.Split(',')[1].Trim(), 10));
var chainedBlock = chain.GetBlock(height);
for (int i = height; i > lastIndex; i--)
{
var g = chain.GetBlock(i);
var block = indexStore.Get(g.HashBlock);
stakeChain.Set(g.HashBlock, new BlockStake(block));
}
lastIndex = height;
Assert.Equal(expectedTarget, chainedBlock.Header.Bits);
var target = stakeChain.GetWorkRequired(chainedBlock, stakeChain.Get(chainedBlock.HashBlock), Network.PurpleMain.Consensus);
//var target = chain.GetWorkRequired(Network.PurpleMain, height);
Assert.Equal(expectedTarget, target);
}
}