public void Repository_CommitAndRollbackTest()
{
ISource <byte[], byte[]> stateDB = new NoDeleteSource <byte[], byte[]>(new MemoryDictionarySource());
StateRepositoryRoot repository = new StateRepositoryRoot(stateDB);
IStateRepository txTrack = repository.StartTracking();
txTrack.CreateAccount(testAddress);
txTrack.SetStorageValue(testAddress, dog, cat);
txTrack.Commit();
repository.Commit();
byte[] root1 = repository.Root;
IStateRepository txTrack2 = repository.StartTracking();
txTrack2.SetStorageValue(testAddress, dog, fish);
txTrack2.Rollback();
IStateRepository txTrack3 = repository.StartTracking();
txTrack3.SetStorageValue(testAddress, dodecahedron, bird);
txTrack3.Commit();
repository.Commit();
byte[] upToDateRoot = repository.Root;
Assert.Equal(cat, repository.GetStorageValue(testAddress, dog));
Assert.Equal(bird, repository.GetStorageValue(testAddress, dodecahedron));
IStateRepository snapshot = repository.GetSnapshotTo(root1);
repository.SyncToRoot(root1);
Assert.Equal(cat, snapshot.GetStorageValue(testAddress, dog));
Assert.Null(snapshot.GetStorageValue(testAddress, dodecahedron));
}
public void Repository_CommitPushesToUnderlyingSource()
{
ISource <byte[], byte[]> stateDB = new NoDeleteSource <byte[], byte[]>(new MemoryDictionarySource());
StateRepositoryRoot repository = new StateRepositoryRoot(stateDB);
IStateRepository txTrack = repository.StartTracking();
txTrack.CreateAccount(testAddress);
txTrack.SetStorageValue(testAddress, dog, cat);
Assert.Null(repository.GetStorageValue(testAddress, dog));
txTrack.Commit();
Assert.Equal(cat, repository.GetStorageValue(testAddress, dog));
}
public void Test20DBreeze()
{
DBreezeEngine engine = new DBreezeEngine(DbreezeTestLocation);
using (DBreeze.Transactions.Transaction t = engine.GetTransaction())
{
t.RemoveAllKeys(DbreezeTestDb, true);
t.Commit();
}
ISource <byte[], byte[]> stateDB = new NoDeleteSource <byte[], byte[]>(new DBreezeByteStore(engine, DbreezeTestDb));
StateRepositoryRoot repository = new StateRepositoryRoot(stateDB);
byte[] root = repository.Root;
uint160 cowAddress = new uint160(cow);
uint160 horseAddress = new uint160(horse);
IStateRepository track2 = repository.StartTracking(); //repository
track2.SetStorageValue(cowAddress, cowKey1, cowVal1);
track2.SetStorageValue(horseAddress, horseKey1, horseVal1);
track2.Commit();
repository.Commit();
byte[] root2 = repository.Root;
track2 = repository.StartTracking(); //repository
track2.SetStorageValue(cowAddress, cowKey2, cowVal0);
track2.SetStorageValue(horseAddress, horseKey2, horseVal0);
track2.Commit();
repository.Commit();
byte[] root3 = repository.Root;
IStateRepository snapshot = new StateRepositoryRoot(stateDB, root);
Assert.Null(snapshot.GetStorageValue(cowAddress, cowKey1));
Assert.Null(snapshot.GetStorageValue(cowAddress, cowKey2));
Assert.Null(snapshot.GetStorageValue(horseAddress, horseKey1));
Assert.Null(snapshot.GetStorageValue(horseAddress, horseKey2));
snapshot = new StateRepositoryRoot(stateDB, root2);
Assert.Equal(cowVal1, snapshot.GetStorageValue(cowAddress, cowKey1));
Assert.Null(snapshot.GetStorageValue(cowAddress, cowKey2));
Assert.Equal(horseVal1, snapshot.GetStorageValue(horseAddress, horseKey1));
Assert.Null(snapshot.GetStorageValue(horseAddress, horseKey2));
snapshot = new StateRepositoryRoot(stateDB, root3);
Assert.Equal(cowVal1, snapshot.GetStorageValue(cowAddress, cowKey1));
Assert.Equal(cowVal0, snapshot.GetStorageValue(cowAddress, cowKey2));
Assert.Equal(horseVal1, snapshot.GetStorageValue(horseAddress, horseKey1));
Assert.Equal(horseVal0, snapshot.GetStorageValue(horseAddress, horseKey2));
}
public void Test4()
{
MemoryDictionarySource source = new MemoryDictionarySource();
StateRepositoryRoot root = new StateRepositoryRoot(source);
IStateRepository repository = root.StartTracking();
repository.SetStorageValue(new uint160(cow), cowKey, cowValue);
repository.SetStorageValue(new uint160(horse), horseKey, horseValue);
repository.Commit();
Assert.Equal(cowValue, root.GetStorageValue(new uint160(cow), cowKey));
Assert.Equal(horseValue, root.GetStorageValue(new uint160(horse), horseKey));
}
public void Test20()
{
ISource <byte[], byte[]> stateDB = new NoDeleteSource <byte[], byte[]>(new MemoryDictionarySource());
StateRepositoryRoot repository = new StateRepositoryRoot(stateDB);
byte[] root = repository.Root;
uint160 cowAddress = new uint160(cow);
uint160 horseAddress = new uint160(horse);
IStateRepository track2 = repository.StartTracking(); //repository
track2.SetStorageValue(cowAddress, cowKey1, cowVal1);
track2.SetStorageValue(horseAddress, horseKey1, horseVal1);
track2.Commit();
repository.Commit();
byte[] root2 = repository.Root;
track2 = repository.StartTracking(); //repository
track2.SetStorageValue(cowAddress, cowKey2, cowVal0);
track2.SetStorageValue(horseAddress, horseKey2, horseVal0);
track2.Commit();
repository.Commit();
byte[] root3 = repository.Root;
IStateRepository snapshot = new StateRepositoryRoot(stateDB, root);
Assert.Null(snapshot.GetStorageValue(cowAddress, cowKey1));
Assert.Null(snapshot.GetStorageValue(cowAddress, cowKey2));
Assert.Null(snapshot.GetStorageValue(horseAddress, horseKey1));
Assert.Null(snapshot.GetStorageValue(horseAddress, horseKey2));
snapshot = new StateRepositoryRoot(stateDB, root2);
Assert.Equal(cowVal1, snapshot.GetStorageValue(cowAddress, cowKey1));
Assert.Null(snapshot.GetStorageValue(cowAddress, cowKey2));
Assert.Equal(horseVal1, snapshot.GetStorageValue(horseAddress, horseKey1));
Assert.Null(snapshot.GetStorageValue(horseAddress, horseKey2));
snapshot = new StateRepositoryRoot(stateDB, root3);
Assert.Equal(cowVal1, snapshot.GetStorageValue(cowAddress, cowKey1));
Assert.Equal(cowVal0, snapshot.GetStorageValue(cowAddress, cowKey2));
Assert.Equal(horseVal1, snapshot.GetStorageValue(horseAddress, horseKey1));
Assert.Equal(horseVal0, snapshot.GetStorageValue(horseAddress, horseKey2));
}
public void Repository_Null_Is_Stored_As_Null()
{
// Demonstrates that our repository stores null and returns null
ISource <byte[], byte[]> stateDB = new NoDeleteSource <byte[], byte[]>(new MemoryDictionarySource());
StateRepositoryRoot repository = new StateRepositoryRoot(stateDB);
repository.CreateAccount(testAddress);
repository.SetStorageValue(testAddress, dog, null);
Assert.Null(repository.GetStorageValue(testAddress, dog));
repository.Commit();
// We have pushed null to the kv store. Should come back as null
StateRepositoryRoot repository2 = new StateRepositoryRoot(stateDB, repository.Root);
Assert.Null(repository2.GetStorageValue(testAddress, dog));
}
public void Repository_Bytes0VsNull()
{
// Demonstrates that our repository treats byte[0] and null as the same.
ISource <byte[], byte[]> stateDB = new NoDeleteSource <byte[], byte[]>(new MemoryDictionarySource());
StateRepositoryRoot repository = new StateRepositoryRoot(stateDB);
repository.CreateAccount(testAddress);
repository.SetStorageValue(testAddress, dog, new byte[0]);
Assert.Equal(new byte[0], repository.GetStorageValue(testAddress, dog));
repository.Commit();
// We have pushed byte[0] to the kv store. Should come back as byte[0] right?
StateRepositoryRoot repository2 = new StateRepositoryRoot(stateDB, repository.Root);
// Nope, comes back null...
Assert.Null(repository2.GetStorageValue(testAddress, dog));
}
public void Repository_Empty_String_Is_Stored_As_Null()
{
// Demonstrates that our repository stores null and returns null
ISource <byte[], byte[]> stateDB = new NoDeleteSource <byte[], byte[]>(new MemoryDictionarySource());
StateRepositoryRoot repository = new StateRepositoryRoot(stateDB);
repository.CreateAccount(testAddress);
var emptyString = Encoding.UTF8.GetBytes(string.Empty);
Assert.Empty(empty); // Empty string is empty byte array
repository.SetStorageValue(testAddress, dog, emptyString);
Assert.Equal(emptyString, repository.GetStorageValue(testAddress, dog));
repository.Commit();
// We have pushed null to the kv store. Should come back as null
StateRepositoryRoot repository2 = new StateRepositoryRoot(stateDB, repository.Root);
Assert.Null(repository2.GetStorageValue(testAddress, dog));
}