public void Repository_CacheDoesntCarryOver()
{
const string testContractType = "A String";
ISource <byte[], byte[]> stateDB = new NoDeleteSource <byte[], byte[]>(new MemoryDictionarySource());
StateRepositoryRoot repository = new StateRepositoryRoot(stateDB);
byte[] initialRoot = repository.Root;
IStateRepository txTrack = repository.StartTracking();
txTrack.CreateAccount(testAddress);
txTrack.SetStorageValue(testAddress, dog, cat);
txTrack.SetContractType(testAddress, testContractType);
txTrack.Commit();
repository.Commit();
byte[] postChangesRoot = repository.Root;
IStateRepositoryRoot repository2 = repository.GetSnapshotTo(initialRoot);
Assert.Null(repository2.GetAccountState(testAddress));
repository2.SetContractType(testAddress, "Something Else");
repository2.SyncToRoot(postChangesRoot);
Assert.Equal(testContractType, repository2.GetContractType(testAddress));
}
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));
}