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Add some initial MemoryPool unit tests. Fix bug when Persisting the G…
…enesisBlock (neo-project#549)
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using System; | ||
using System.Linq; | ||
using System.Reflection; | ||
using Microsoft.VisualStudio.TestTools.UnitTesting; | ||
using Moq; | ||
using Neo.Ledger; | ||
using FluentAssertions; | ||
using Neo.Cryptography.ECC; | ||
using Neo.IO.Wrappers; | ||
using Neo.Network.P2P.Payloads; | ||
using Neo.Persistence; | ||
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namespace Neo.UnitTests | ||
{ | ||
[TestClass] | ||
public class UT_MemoryPool | ||
{ | ||
private static NeoSystem TheNeoSystem; | ||
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private readonly Random _random = new Random(); | ||
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private MemoryPool _unit; | ||
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[TestInitialize] | ||
public void TestSetup() | ||
{ | ||
if (TheNeoSystem == null) | ||
{ | ||
var mockSnapshot = new Mock<Snapshot>(); | ||
mockSnapshot.SetupGet(p => p.Blocks).Returns(new TestDataCache<UInt256, BlockState>()); | ||
mockSnapshot.SetupGet(p => p.Transactions).Returns(new TestDataCache<UInt256, TransactionState>()); | ||
mockSnapshot.SetupGet(p => p.Accounts).Returns(new TestDataCache<UInt160, AccountState>()); | ||
mockSnapshot.SetupGet(p => p.UnspentCoins).Returns(new TestDataCache<UInt256, UnspentCoinState>()); | ||
mockSnapshot.SetupGet(p => p.SpentCoins).Returns(new TestDataCache<UInt256, SpentCoinState>()); | ||
mockSnapshot.SetupGet(p => p.Validators).Returns(new TestDataCache<ECPoint, ValidatorState>()); | ||
mockSnapshot.SetupGet(p => p.Assets).Returns(new TestDataCache<UInt256, AssetState>()); | ||
mockSnapshot.SetupGet(p => p.Contracts).Returns(new TestDataCache<UInt160, ContractState>()); | ||
mockSnapshot.SetupGet(p => p.Storages).Returns(new TestDataCache<StorageKey, StorageItem>()); | ||
mockSnapshot.SetupGet(p => p.HeaderHashList) | ||
.Returns(new TestDataCache<UInt32Wrapper, HeaderHashList>()); | ||
mockSnapshot.SetupGet(p => p.ValidatorsCount).Returns(new TestMetaDataCache<ValidatorsCountState>()); | ||
mockSnapshot.SetupGet(p => p.BlockHashIndex).Returns(new TestMetaDataCache<HashIndexState>()); | ||
mockSnapshot.SetupGet(p => p.HeaderHashIndex).Returns(new TestMetaDataCache<HashIndexState>()); | ||
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var mockStore = new Mock<Store>(); | ||
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var defaultTx = CreateRandomHashInvocationTransaction(); | ||
defaultTx.Outputs = new TransactionOutput[1]; | ||
defaultTx.Outputs[0] = new TransactionOutput | ||
{ | ||
AssetId = Blockchain.UtilityToken.Hash, | ||
Value = new Fixed8(1000000), // 0.001 GAS (enough to be a high priority TX | ||
ScriptHash = UInt160.Zero // doesn't matter for our purposes. | ||
}; | ||
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mockStore.Setup(p => p.GetBlocks()).Returns(new TestDataCache<UInt256, BlockState>()); | ||
mockStore.Setup(p => p.GetTransactions()).Returns(new TestDataCache<UInt256, TransactionState>( | ||
new TransactionState | ||
{ | ||
BlockIndex = 1, | ||
Transaction = defaultTx | ||
})); | ||
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mockStore.Setup(p => p.GetAccounts()).Returns(new TestDataCache<UInt160, AccountState>()); | ||
mockStore.Setup(p => p.GetUnspentCoins()).Returns(new TestDataCache<UInt256, UnspentCoinState>()); | ||
mockStore.Setup(p => p.GetSpentCoins()).Returns(new TestDataCache<UInt256, SpentCoinState>()); | ||
mockStore.Setup(p => p.GetValidators()).Returns(new TestDataCache<ECPoint, ValidatorState>()); | ||
mockStore.Setup(p => p.GetAssets()).Returns(new TestDataCache<UInt256, AssetState>()); | ||
mockStore.Setup(p => p.GetContracts()).Returns(new TestDataCache<UInt160, ContractState>()); | ||
mockStore.Setup(p => p.GetStorages()).Returns(new TestDataCache<StorageKey, StorageItem>()); | ||
mockStore.Setup(p => p.GetHeaderHashList()).Returns(new TestDataCache<UInt32Wrapper, HeaderHashList>()); | ||
mockStore.Setup(p => p.GetValidatorsCount()).Returns(new TestMetaDataCache<ValidatorsCountState>()); | ||
mockStore.Setup(p => p.GetBlockHashIndex()).Returns(new TestMetaDataCache<HashIndexState>()); | ||
mockStore.Setup(p => p.GetHeaderHashIndex()).Returns(new TestMetaDataCache<HashIndexState>()); | ||
mockStore.Setup(p => p.GetSnapshot()).Returns(mockSnapshot.Object); | ||
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Console.WriteLine("initialize NeoSystem"); | ||
TheNeoSystem = new NeoSystem(mockStore.Object); // new Mock<NeoSystem>(mockStore.Object); | ||
} | ||
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// Create a MemoryPool with capacity of 100 | ||
_unit = new MemoryPool(TheNeoSystem, 100); | ||
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// Verify capacity equals the amount specified | ||
_unit.Capacity.ShouldBeEquivalentTo(100); | ||
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_unit.VerifiedCount.ShouldBeEquivalentTo(0); | ||
_unit.UnVerifiedCount.ShouldBeEquivalentTo(0); | ||
_unit.Count.ShouldBeEquivalentTo(0); | ||
} | ||
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private Transaction CreateRandomHashInvocationTransaction() | ||
{ | ||
var tx = new InvocationTransaction(); | ||
var randomBytes = new byte[16]; | ||
_random.NextBytes(randomBytes); | ||
tx.Script = randomBytes; | ||
tx.Attributes = new TransactionAttribute[0]; | ||
tx.Inputs = new CoinReference[0]; | ||
tx.Outputs = new TransactionOutput[0]; | ||
tx.Witnesses = new Witness[0]; | ||
// Force getting the references | ||
// Console.WriteLine($"Reference Count: {tx.References.Count}"); | ||
return tx; | ||
} | ||
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private Transaction CreateMockHighPriorityTransaction() | ||
{ | ||
var tx = CreateRandomHashInvocationTransaction(); | ||
tx.Inputs = new CoinReference[1]; | ||
// Any input will trigger reading the transaction output and get our mocked transaction output. | ||
tx.Inputs[0] = new CoinReference | ||
{ | ||
PrevHash = UInt256.Zero, | ||
PrevIndex = 0 | ||
}; | ||
return tx; | ||
} | ||
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private Transaction CreateMockLowPriorityTransaction() | ||
{ | ||
return CreateRandomHashInvocationTransaction(); | ||
} | ||
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private void AddTransactions(int count, bool isHighPriority=false) | ||
{ | ||
for (int i = 0; i < count; i++) | ||
{ | ||
var lowPrioTx = isHighPriority ? CreateMockHighPriorityTransaction(): CreateMockLowPriorityTransaction(); | ||
Console.WriteLine($"created tx: {lowPrioTx.Hash}"); | ||
_unit.TryAdd(lowPrioTx.Hash, lowPrioTx); | ||
} | ||
} | ||
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private void AddLowPriorityTransactions(int count) => AddTransactions(count); | ||
public void AddHighPriorityTransactions(int count) => AddTransactions(count, true); | ||
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[TestMethod] | ||
public void LowPriorityCapacityTest() | ||
{ | ||
// Add over the capacity items, verify that the verified count increases each time | ||
AddLowPriorityTransactions(50); | ||
_unit.VerifiedCount.ShouldBeEquivalentTo(50); | ||
AddLowPriorityTransactions(51); | ||
Console.WriteLine($"VerifiedCount: {_unit.VerifiedCount} LowPrioCount {_unit.SortedLowPrioTxCount} HighPrioCount {_unit.SortedHighPrioTxCount}"); | ||
_unit.SortedLowPrioTxCount.ShouldBeEquivalentTo(100); | ||
_unit.SortedHighPrioTxCount.ShouldBeEquivalentTo(0); | ||
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_unit.VerifiedCount.ShouldBeEquivalentTo(100); | ||
_unit.UnVerifiedCount.ShouldBeEquivalentTo(0); | ||
_unit.Count.ShouldBeEquivalentTo(100); | ||
} | ||
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[TestMethod] | ||
public void HighPriorityCapacityTest() | ||
{ | ||
// Add over the capacity items, verify that the verified count increases each time | ||
AddHighPriorityTransactions(101); | ||
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Console.WriteLine($"VerifiedCount: {_unit.VerifiedCount} LowPrioCount {_unit.SortedLowPrioTxCount} HighPrioCount {_unit.SortedHighPrioTxCount}"); | ||
_unit.SortedLowPrioTxCount.ShouldBeEquivalentTo(0); | ||
_unit.SortedHighPrioTxCount.ShouldBeEquivalentTo(100); | ||
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_unit.VerifiedCount.ShouldBeEquivalentTo(100); | ||
_unit.UnVerifiedCount.ShouldBeEquivalentTo(0); | ||
_unit.Count.ShouldBeEquivalentTo(100); | ||
} | ||
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[TestMethod] | ||
public void HighPriorityPushesOutLowPriority() | ||
{ | ||
// Add over the capacity items, verify that the verified count increases each time | ||
AddLowPriorityTransactions(70); | ||
AddHighPriorityTransactions(40); | ||
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Console.WriteLine($"VerifiedCount: {_unit.VerifiedCount} LowPrioCount {_unit.SortedLowPrioTxCount} HighPrioCount {_unit.SortedHighPrioTxCount}"); | ||
_unit.SortedLowPrioTxCount.ShouldBeEquivalentTo(60); | ||
_unit.SortedHighPrioTxCount.ShouldBeEquivalentTo(40); | ||
_unit.Count.ShouldBeEquivalentTo(100); | ||
} | ||
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[TestMethod] | ||
public void LowPriorityDoesNotPushOutHighPrority() | ||
{ | ||
AddHighPriorityTransactions(70); | ||
AddLowPriorityTransactions(40); | ||
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_unit.SortedLowPrioTxCount.ShouldBeEquivalentTo(30); | ||
_unit.SortedHighPrioTxCount.ShouldBeEquivalentTo(70); | ||
_unit.Count.ShouldBeEquivalentTo(100); | ||
} | ||
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[TestMethod] | ||
public void BlockPersistMovesTxToUnverified() | ||
{ | ||
AddLowPriorityTransactions(30); | ||
AddHighPriorityTransactions(70); | ||
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var block = new Block | ||
{ | ||
Transactions = _unit.GetSortedVerifiedTransactions().Take(10) | ||
.Concat(_unit.GetSortedVerifiedTransactions().Where(x => x.IsLowPriority).Take(5)).ToArray() | ||
}; | ||
_unit.UpdatePoolForBlockPersisted(block, Blockchain.Singleton.GetSnapshot()); | ||
_unit.SortedLowPrioTxCount.ShouldBeEquivalentTo(0); | ||
_unit.SortedHighPrioTxCount.ShouldBeEquivalentTo(0); | ||
_unit.UnverifiedSortedHighPrioTxCount.ShouldBeEquivalentTo(60); | ||
_unit.UnverifiedSortedLowPrioTxCount.ShouldBeEquivalentTo(25); | ||
} | ||
} | ||
} |
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