public void TestBlockchain_GetTransactionHeight()
{
var engine = GetEngine(hasSnapshot: true, addScript: false);
var state = new TransactionState()
{
BlockIndex = 0,
Transaction = TestUtils.CreateRandomHashTransaction()
};
UT_SmartContractHelper.TransactionAdd(engine.Snapshot, state);
engine.LoadScript(NativeContract.Ledger.Script, configureState: p => p.ScriptHash = NativeContract.Ledger.Hash);
var script = new ScriptBuilder();
script.EmitPush(state.Transaction.Hash.ToArray());
script.EmitPush("getTransactionHeight");
engine.LoadScript(script.ToArray());
engine.Execute();
Assert.AreEqual(engine.State, VMState.HALT);
var result = engine.ResultStack.Pop();
result.Should().BeOfType(typeof(VM.Types.Integer));
result.GetInteger().Should().Be(0);
}
public void System_Blockchain_GetBlock()
{
var tx = new Transaction()
{
Script = new byte[] { 0x01 },
Attributes = Array.Empty <TransactionAttribute>(),
Signers = Array.Empty <Signer>(),
NetworkFee = 0x02,
SystemFee = 0x03,
Nonce = 0x04,
ValidUntilBlock = 0x05,
Version = 0x06,
Witnesses = new Witness[] { new Witness()
{
VerificationScript = new byte[] { 0x07 }
} },
};
var block = new TrimmedBlock()
{
Header = new Header
{
Index = 0,
Timestamp = 2,
Witness = new Witness()
{
InvocationScript = new byte[0],
VerificationScript = new byte[0]
},
PrevHash = UInt256.Zero,
MerkleRoot = UInt256.Zero,
PrimaryIndex = 1,
NextConsensus = UInt160.Zero,
},
Hashes = new[] { tx.Hash }
};
var snapshot = TestBlockchain.GetTestSnapshot();
using (var script = new ScriptBuilder())
{
script.EmitDynamicCall(NativeContract.Ledger.Hash, "getBlock", block.Hash.ToArray());
// Without block
var engine = ApplicationEngine.Create(TriggerType.Application, null, snapshot);
engine.LoadScript(script.ToArray());
Assert.AreEqual(engine.Execute(), VMState.HALT);
Assert.AreEqual(1, engine.ResultStack.Count);
Assert.IsTrue(engine.ResultStack.Peek().IsNull);
// Not traceable block
const byte Prefix_Transaction = 11;
const byte Prefix_CurrentBlock = 12;
var height = snapshot[NativeContract.Ledger.CreateStorageKey(Prefix_CurrentBlock)].GetInteroperable <HashIndexState>();
height.Index = block.Index + ProtocolSettings.Default.MaxTraceableBlocks;
UT_SmartContractHelper.BlocksAdd(snapshot, block.Hash, block);
snapshot.Add(NativeContract.Ledger.CreateStorageKey(Prefix_Transaction, tx.Hash), new StorageItem(new TransactionState
{
BlockIndex = block.Index,
Transaction = tx
}, true));
engine = ApplicationEngine.Create(TriggerType.Application, null, snapshot);
engine.LoadScript(script.ToArray());
Assert.AreEqual(engine.Execute(), VMState.HALT);
Assert.AreEqual(1, engine.ResultStack.Count);
Assert.IsTrue(engine.ResultStack.Peek().IsNull);
// With block
height.Index = block.Index;
engine = ApplicationEngine.Create(TriggerType.Application, null, snapshot);
engine.LoadScript(script.ToArray());
Assert.AreEqual(engine.Execute(), VMState.HALT);
Assert.AreEqual(1, engine.ResultStack.Count);
var array = engine.ResultStack.Pop <VM.Types.Array>();
Assert.AreEqual(block.Hash, new UInt256(array[0].GetSpan()));
}
}