public async Task Does_not_do_full_sync_when_not_needed_with_split()
{
BlockTree minerTree = Build.A.BlockTree(_genesisBlock).OfChainLength(6).TestObject;
ISyncPeer miner1 = new SyncPeerMock(minerTree);
AutoResetEvent resetEvent = new AutoResetEvent(false);
_synchronizer.SyncEvent += (sender, args) =>
{
if (args.SyncEvent == SyncEvent.Completed || args.SyncEvent == SyncEvent.Failed)
{
resetEvent.Set();
}
};
_pool.Start();
_synchronizer.Start();
_pool.AddPeer(miner1);
resetEvent.WaitOne(_standardTimeoutUnit);
Assert.AreEqual(minerTree.BestSuggestedHeader.Hash, _blockTree.BestSuggestedHeader.Hash, "client agrees with miner before split");
Block newBlock = Build.A.Block.WithParent(minerTree.Head).TestObject;
minerTree.SuggestBlock(newBlock);
minerTree.UpdateMainChain(newBlock);
ISyncPeer miner2 = Substitute.For <ISyncPeer>();
miner2.GetHeadBlockHeader(Arg.Any <Keccak>(), Arg.Any <CancellationToken>()).Returns(miner1.GetHeadBlockHeader(null, CancellationToken.None));
miner2.Node.Id.Returns(TestItem.PublicKeyB);
Assert.AreEqual(newBlock.Number, await miner2.GetHeadBlockHeader(null, Arg.Any <CancellationToken>()), "number as expected");
_pool.Start();
_synchronizer.Start();
_pool.AddPeer(miner2);
resetEvent.WaitOne(_standardTimeoutUnit);
await miner2.Received().GetBlockHeaders(6, 1, 0, default(CancellationToken));
}