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);
}
public void Set_get()
{
StateDb db = new StateDb(new MemDb());
db.Set(_hash1, _bytes1);
byte[] getResult = db.Get(_hash1);
Assert.AreEqual(_bytes1, getResult);
}
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);
}
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);
}