Exemplo n.º 1
0
        public void Capacity_grwoth_and_shrinkage()
        {
            StateDb db = new StateDb(new MemDb());

            for (int i = 0; i < 16; i++)
            {
                _hash1 = Keccak.Compute(_hash1.Bytes);
                db.Set(_hash1, _bytes1);
            }

            db.Restore(-1);

            byte[] getResult = db.Get(_hash1);
            Assert.AreEqual(null, getResult);

            for (int i = 0; i < 16; i++)
            {
                _hash1 = Keccak.Compute(_hash1.Bytes);
                db.Set(_hash1, _bytes1);
            }

            db.Commit();

            getResult = db.Get(_hash1);
            Assert.AreEqual(_bytes1, getResult);
        }
        public async Task Can_read_dependent_items_from_state_db_while_waiting_for_dependencies()
        {
            StateDb codeDb  = new StateDb();
            StateDb stateDB = new StateDb();
            MemDb   tempDb  = new MemDb();

            SyncConfig syncConfig = new SyncConfig();

            syncConfig.FastSync = true;

            IBlockTree    blockTree = Substitute.For <IBlockTree>();
            ISyncPeerPool pool      = Substitute.For <ISyncPeerPool>();

            SyncProgressResolver syncProgressResolver = new SyncProgressResolver(blockTree, NullReceiptStorage.Instance, stateDB, new MemDb(), syncConfig, LimboLogs.Instance);
            ISyncModeSelector    syncModeSelector     = new MultiSyncModeSelector(syncProgressResolver, pool, syncConfig, LimboLogs.Instance);
            StateSyncFeed        stateSyncFeed        = new StateSyncFeed(codeDb, stateDB, tempDb, syncModeSelector, blockTree, LimboLogs.Instance);

            // so we want to setup a trie in a structure of -> branch into two leaves
            // so we can respond with the branch node and with leaves missing
            // and we can prove that we can read the branch from the temp DB while it is still missing from the State DB

            AccountDecoder accountDecoder = new AccountDecoder();

            TrieNode leaf   = TrieNodeFactory.CreateLeaf(new HexPrefix(true, new byte[] { 1, 2, 3 }), accountDecoder.Encode(Account.TotallyEmpty).Bytes);
            TrieNode branch = TrieNodeFactory.CreateBranch();

            branch.SetChild(1, leaf);
            branch.ResolveKey(true);

            // PatriciaTree tree = new PatriciaTree();
            // tree = new PatriciaTree();
            // tree.Set(branch.Keccak.Bytes, branch.Value);

            stateSyncFeed.ResetStateRoot(0, branch.Keccak);

            var request = await stateSyncFeed.PrepareRequest();

            BuildRequestAndHandleResponse(branch, request, stateSyncFeed);

            byte[] value = tempDb.Get(branch.Keccak);
            value.Should().BeEquivalentTo(branch.FullRlp);

            byte[] valueFromState = stateDB.Get(branch.Keccak);
            valueFromState.Should().BeNull();

            request = await stateSyncFeed.PrepareRequest();

            BuildRequestAndHandleResponse(leaf, request, stateSyncFeed);

            value = tempDb.Get(branch.Keccak);
            value.Should().BeNull();

            valueFromState = stateDB.Get(branch.Keccak);
            valueFromState.Should().BeEquivalentTo(branch.FullRlp);
        }
Exemplo n.º 3
0
        public void Set_get()
        {
            StateDb db = new StateDb(new MemDb());

            db.Set(_hash1, _bytes1);
            byte[] getResult = db.Get(_hash1);
            Assert.AreEqual(_bytes1, getResult);
        }
Exemplo n.º 4
0
        public void Set_restore_get()
        {
            StateDb db = new StateDb(new MemDb());

            db.Set(_hash1, _bytes1);
            db.Restore(-1);
            byte[] getResult = db.Get(_hash1);
            Assert.AreEqual(null, getResult);
        }
Exemplo n.º 5
0
        public void Restore_in_the_middle()
        {
            StateDb db = new StateDb(new MemDb());

            db.Set(_hash1, _bytes1);
            int snapshot = db.TakeSnapshot();

            db.Set(_hash2, _bytes2);
            db.Restore(snapshot);
            byte[] getResult = db.Get(_hash2);
            Assert.IsNull(getResult);
        }