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TransactionProcessorEip7702Tests.cs
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// SPDX-FileCopyrightText: 2023 Demerzel Solutions Limited
// SPDX-License-Identifier: LGPL-3.0-only
using Nethermind.Core;
using Nethermind.Core.Extensions;
using Nethermind.Core.Specs;
using Nethermind.Specs;
using Nethermind.Core.Test.Builders;
using Nethermind.Crypto;
using Nethermind.Db;
using Nethermind.Evm.Tracing;
using Nethermind.Evm.TransactionProcessing;
using Nethermind.Logging;
using Nethermind.Specs.Forks;
using Nethermind.State;
using Nethermind.Trie.Pruning;
using NUnit.Framework;
using System.Collections.Generic;
using Nethermind.Core.Crypto;
using System;
using System.Linq;
using Nethermind.Int256;
namespace Nethermind.Evm.Test;
[TestFixture]
internal class TransactionProcessorEip7702Tests
{
private ISpecProvider _specProvider;
private IEthereumEcdsa _ethereumEcdsa;
private TransactionProcessor _transactionProcessor;
private IWorldState _stateProvider;
[SetUp]
public void Setup()
{
MemDb stateDb = new();
_specProvider = new TestSpecProvider(Prague.Instance);
TrieStore trieStore = new(stateDb, LimboLogs.Instance);
_stateProvider = new WorldState(trieStore, new MemDb(), LimboLogs.Instance);
CodeInfoRepository codeInfoRepository = new();
VirtualMachine virtualMachine = new(new TestBlockhashProvider(_specProvider), _specProvider, codeInfoRepository, LimboLogs.Instance);
_transactionProcessor = new TransactionProcessor(_specProvider, _stateProvider, virtualMachine, codeInfoRepository, LimboLogs.Instance);
_ethereumEcdsa = new EthereumEcdsa(_specProvider.ChainId);
}
[Test]
public void Execute_TxHasAuthorizationWithCodeThatSavesCallerAddress_ExpectedAddressIsSaved()
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
//Save caller in storage slot 0
byte[] code = Prepare.EvmCode
.Op(Instruction.CALLER)
.Op(Instruction.PUSH0)
.Op(Instruction.SSTORE)
.Done;
DeployCode(codeSource, code);
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(100_000)
.WithAuthorizationCode(_ethereumEcdsa.Sign(signer, _specProvider.ChainId, codeSource, 0))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), NullTxTracer.Instance);
StorageValue cell = _stateProvider.Get(new StorageCell(signer.Address, 0));
Assert.That(new Address(cell.ToArray()), Is.EqualTo(sender.Address));
}
public static IEnumerable<object[]> DelegatedAndNotDelegatedCodeCases()
{
byte[] delegatedCode = new byte[23];
Eip7702Constants.DelegationHeader.CopyTo(delegatedCode);
yield return new object[] { delegatedCode, true };
yield return new object[] { Prepare.EvmCode.Op(Instruction.GAS).Done, false };
}
[TestCaseSource(nameof(DelegatedAndNotDelegatedCodeCases))]
public void Execute_TxHasAuthorizationCodeButAuthorityHasCode_OnlyInsertIfExistingCodeIsDelegated(byte[] authorityCode, bool shouldInsert)
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
//Save caller in storage slot 0
byte[] code = Prepare.EvmCode
.Op(Instruction.CALLER)
.Op(Instruction.PUSH0)
.Op(Instruction.SSTORE)
.Done;
DeployCode(codeSource, code);
DeployCode(signer.Address, authorityCode);
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(60_000)
.WithAuthorizationCode(_ethereumEcdsa.Sign(signer, _specProvider.ChainId, codeSource, 0))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), NullTxTracer.Instance);
ReadOnlySpan<byte> signerCode = _stateProvider.GetCode(signer.Address);
byte[] expectedCode = shouldInsert ? [.. Eip7702Constants.DelegationHeader, .. codeSource.Bytes] : authorityCode;
Assert.That(signerCode.ToArray(), Is.EquivalentTo(expectedCode));
}
public static IEnumerable<object[]> SenderSignerCases()
{
yield return new object[] { TestItem.PrivateKeyA, TestItem.PrivateKeyB, 0ul };
yield return new object[] { TestItem.PrivateKeyA, TestItem.PrivateKeyA, 1ul };
}
[TestCaseSource(nameof(SenderSignerCases))]
public void Execute_SenderAndSignerIsTheSameOrNotWithCodeThatSavesCallerAddress_SenderAddressIsSaved(PrivateKey sender, PrivateKey signer, ulong nonce)
{
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
//Save caller in storage slot 0
byte[] code = Prepare.EvmCode
.Op(Instruction.CALLER)
.Op(Instruction.PUSH0)
.Op(Instruction.SSTORE)
.Done;
DeployCode(codeSource, code);
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(600_000)
.WithAuthorizationCode(_ethereumEcdsa.Sign(signer, _specProvider.ChainId, codeSource, nonce))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), NullTxTracer.Instance);
StorageValue cellValue = _stateProvider.Get(new StorageCell(signer.Address, 0));
Assert.That(cellValue.ToArray(), Is.EqualTo(sender.Address.Bytes));
}
public static IEnumerable<object[]> DifferentAuthorityTupleValues()
{
//Base case
yield return new object[] { 1ul, 0ul, true };
//Wrong nonce
yield return new object[] { 1ul, 1ul, false };
//Wrong chain id
yield return new object[] { 2ul, 0ul, false };
//Nonce is too high
yield return new object[] { 2ul, ulong.MaxValue, false };
}
[TestCaseSource(nameof(DifferentAuthorityTupleValues))]
public void Execute_AuthorityTupleHasDifferentData_EOACodeIsEmptyOrAsExpected(ulong chainId, ulong nonce, bool expectDelegation)
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
//Save caller in storage slot 0
byte[] code = Prepare.EvmCode
.Op(Instruction.CALLER)
.Op(Instruction.PUSH0)
.Op(Instruction.SSTORE)
.Done;
DeployCode(codeSource, code);
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(100_000)
.WithAuthorizationCode(_ethereumEcdsa.Sign(signer, chainId, codeSource, nonce))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), NullTxTracer.Instance);
byte[] actual = _stateProvider.GetCode(signer.Address);
Assert.That(Eip7702Constants.IsDelegatedCode(actual), Is.EqualTo(expectDelegation));
}
[TestCase(ulong.MaxValue, false)]
[TestCase(ulong.MaxValue - 1, true)]
public void Execute_AuthorityNonceHasMaxValueOrBelow_MaxValueNonceIsNotAllowed(ulong nonce, bool expectDelegation)
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
_stateProvider.CreateAccount(signer.Address, 0, nonce);
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(100_000)
.WithAuthorizationCode(_ethereumEcdsa.Sign(signer, 0, codeSource, nonce))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), NullTxTracer.Instance);
byte[] actual = _stateProvider.GetCode(signer.Address);
Assert.That(Eip7702Constants.IsDelegatedCode(actual), Is.EqualTo(expectDelegation));
}
[TestCase(0)]
[TestCase(1)]
[TestCase(10)]
[TestCase(99)]
public void Execute_TxHasDifferentAmountOfAuthorizedCode_UsedGasIsExpected(int count)
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(GasCostOf.Transaction + GasCostOf.NewAccount * count)
.WithAuthorizationCode(Enumerable.Range(0, count)
.Select(i => _ethereumEcdsa.Sign(
signer,
_specProvider.ChainId,
TestItem.AddressC,
0)).ToArray())
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(100000000).TestObject;
CallOutputTracer tracer = new();
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), tracer);
Assert.That(tracer.GasSpent, Is.EqualTo(GasCostOf.Transaction + GasCostOf.NewAccount * count));
}
public void Execute_TxHasDifferentAmount()
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(100_000)
.WithAuthorizationCode(Enumerable.Range(0, 2)
.Select(i => _ethereumEcdsa.Sign(
signer,
_specProvider.ChainId,
TestItem.AddressC,
0)).ToArray())
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(100000000).TestObject;
CallOutputTracer tracer = new();
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), tracer);
}
private static IEnumerable<object> EvmExecutionErrorCases()
{
byte[] runOutOfGasCode = Prepare.EvmCode
.Op(Instruction.CALLER)
.Op(Instruction.BALANCE)
.Op(Instruction.PUSH0)
.Op(Instruction.JUMP)
.Done;
yield return new object[] { runOutOfGasCode };
byte[] revertExecution = Prepare.EvmCode
.Op(Instruction.REVERT)
.Done;
yield return new object[] { revertExecution };
}
[TestCaseSource(nameof(EvmExecutionErrorCases))]
public void Execute_TxWithDelegationRunsOutOfGas_DelegationRefundIsStillApplied(byte[] executionErrorCode)
{
PrivateKey sender = TestItem.PrivateKeyA;
Address codeSource = TestItem.AddressB;
_stateProvider.CreateAccount(codeSource, 0);
_stateProvider.InsertCode(codeSource, executionErrorCode, Prague.Instance);
_stateProvider.CreateAccount(sender.Address, 1.Ether());
const long gasLimit = 10_000_000;
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(codeSource)
.WithGasLimit(gasLimit)
.WithAuthorizationCode(
_ethereumEcdsa.Sign(
sender,
_specProvider.ChainId,
Address.Zero,
1)
)
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(long.MaxValue).TestObject;
CallOutputTracer tracer = new();
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), tracer);
Assert.That(tracer.GasSpent, Is.EqualTo(gasLimit - GasCostOf.NewAccount + GasCostOf.PerAuthBaseCost));
}
[Test]
public void Execute_TxAuthorizationListWithBALANCE_WarmAccountReadGasIsCharged()
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
byte[] code = Prepare.EvmCode
.PushData(signer.Address)
.Op(Instruction.BALANCE)
.Done;
DeployCode(codeSource, code);
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(60_000)
.WithAuthorizationCode(
_ethereumEcdsa.Sign(
signer,
_specProvider.ChainId,
codeSource,
0))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(100000000).TestObject;
CallOutputTracer tracer = new();
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), tracer);
//Tx should only be charged for warm state read
Assert.That(tracer.GasSpent, Is.EqualTo(GasCostOf.Transaction
+ GasCostOf.NewAccount
+ Prague.Instance.GetBalanceCost()
+ GasCostOf.WarmStateRead
+ GasCostOf.VeryLow));
}
[TestCase(2)]
[TestCase(1)]
public void Execute_AuthorizationListHasSameAuthorityButDifferentCode_OnlyLastInstanceIsUsed(int expectedStoredValue)
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
Address firstCodeSource = TestItem.AddressC;
Address secondCodeSource = TestItem.AddressD;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
byte[] firstCode = Prepare.EvmCode
.PushData(0)
.Op(Instruction.PUSH0)
.Op(Instruction.SSTORE)
.Done;
DeployCode(firstCodeSource, firstCode);
byte[] secondCode = Prepare.EvmCode
.PushData(expectedStoredValue)
.Op(Instruction.PUSH0)
.Op(Instruction.SSTORE)
.Done;
DeployCode(secondCodeSource, secondCode);
AuthorizationTuple[] authList = [
_ethereumEcdsa.Sign(
signer,
_specProvider.ChainId,
firstCodeSource,
0),
_ethereumEcdsa.Sign(
signer,
_specProvider.ChainId,
secondCodeSource,
1),
];
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(100_000)
.WithAuthorizationCode(authList)
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), NullTxTracer.Instance);
Assert.That(_stateProvider.Get(new StorageCell(signer.Address, 0)).ToArray(), Is.EquivalentTo(new[] { expectedStoredValue }));
}
[TestCase]
public void Execute_FirstTxHasAuthorizedCodeThatIncrementsAndSecondDoesNot_StorageSlotIsOnlyIncrementedOnce()
{
PrivateKey sender = TestItem.PrivateKeyA;
PrivateKey signer = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
//Increment 1 everytime it's called
byte[] code = Prepare.EvmCode
.Op(Instruction.PUSH0)
.Op(Instruction.SLOAD)
.PushData(1)
.Op(Instruction.ADD)
.Op(Instruction.PUSH0)
.Op(Instruction.SSTORE)
.Done;
DeployCode(codeSource, code);
Transaction tx1 = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(60_000)
.WithAuthorizationCode(_ethereumEcdsa.Sign(
signer,
_specProvider.ChainId,
codeSource,
0))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Transaction tx2 = Build.A.Transaction
.WithType(TxType.SetCode)
.WithNonce(1)
.WithTo(signer.Address)
.WithGasLimit(60_000)
.WithAuthorizationCode([])
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx1, tx2)
.WithGasLimit(10000000).TestObject;
var blkCtx = new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header));
_transactionProcessor.Execute(tx1, blkCtx, NullTxTracer.Instance);
_transactionProcessor.Execute(tx2, blkCtx, NullTxTracer.Instance);
Assert.That(_stateProvider.Get(new StorageCell(signer.Address, 0)).ToArray(), Is.EquivalentTo(new[] { 1 }));
}
public static IEnumerable<object[]> OpcodesWithEXTCODE()
{
//EXTCODESIZE should return 23
yield return new object[] {
Prepare.EvmCode
.PushData(TestItem.AddressA)
.Op(Instruction.EXTCODESIZE)
.Op(Instruction.PUSH0)
.Op(Instruction.MSTORE8)
.PushData(1)
.Op(Instruction.PUSH0)
.Op(Instruction.RETURN)
.Done,
new byte[]{ (byte)Eip7702Constants.DelegationDesignatorLength } };
byte[] delegationCode = [.. Eip7702Constants.DelegationHeader, .. TestItem.AddressC.Bytes];
yield return new object[] {
Prepare.EvmCode
.PushData(TestItem.AddressA)
.Op(Instruction.EXTCODEHASH)
.Op(Instruction.PUSH0)
.Op(Instruction.MSTORE)
.PushData(32)
.Op(Instruction.PUSH0)
.Op(Instruction.RETURN)
.Done,
Keccak.Compute(delegationCode).Bytes.ToArray() };
//EXTCOPYCODE should copy the the delegation designator
byte[] code = Prepare.EvmCode
.PushData(TestItem.AddressA)
.Op(Instruction.DUP1)
.Op(Instruction.EXTCODESIZE)
.Op(Instruction.PUSH0)
.Op(Instruction.PUSH0)
.Op(Instruction.DUP4)
.Op(Instruction.EXTCODECOPY)
.PushData(23)
.Op(Instruction.PUSH0)
.Op(Instruction.RETURN)
.Done;
yield return new object[]
{
code,
delegationCode
};
}
[TestCaseSource(nameof(OpcodesWithEXTCODE))]
public void Execute_DelegatedCodeUsesEXTOPCODES_ReturnsExpectedValue(byte[] code, byte[] expectedValue)
{
PrivateKey signer = TestItem.PrivateKeyA;
PrivateKey sender = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
DeployCode(codeSource, code);
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(signer.Address)
.WithGasLimit(100_000)
.WithAuthorizationCode(_ethereumEcdsa.Sign(
signer,
_specProvider.ChainId,
codeSource,
0))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
CallOutputTracer callOutputTracer = new();
_ = _transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), callOutputTracer);
Assert.That(callOutputTracer.ReturnValue.ToArray(), Is.EquivalentTo(expectedValue));
}
public static IEnumerable<object[]> EXTCODEHASHAccountSetup()
{
yield return new object[] { static (IWorldState state, Address accountt) =>
{
//Account does not exists
},
new byte[] { 0x0 }
};
byte[] code = [.. Eip7702Constants.DelegationHeader, .. TestItem.AddressD.Bytes];
yield return new object[] {
static (IWorldState state, Address account) =>
{
//Account is delegated
byte[] code = [.. Eip7702Constants.DelegationHeader, .. TestItem.AddressD.Bytes];
state.CreateAccountIfNotExists(account, 0);
state.InsertCode(account, ValueKeccak.Compute(code), code, Prague.Instance);
},
ValueKeccak.Compute(code).Bytes.ToArray()
};
yield return new object[] { static (IWorldState state, Address account) =>
{
//Account exists but is not delegated
state.CreateAccountIfNotExists(account, 1);
},
Keccak.OfAnEmptyString.ValueHash256.ToByteArray()
};
yield return new object[] { static (IWorldState state, Address account) =>
{
//Account is dead
state.CreateAccountIfNotExists(account, 0);
},
new byte[] { 0x0 }
};
}
[TestCaseSource(nameof(EXTCODEHASHAccountSetup))]
public void Execute_CodeSavesEXTCODEHASHWhenAccountIsDelegatedOrNot_SavesExpectedValue(Action<IWorldState, Address> setupAccount, byte[] expected)
{
PrivateKey signer = TestItem.PrivateKeyA;
PrivateKey sender = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
setupAccount(_stateProvider, signer.Address);
_stateProvider.CreateAccount(sender.Address, 1.Ether());
byte[] code = Prepare.EvmCode
.PushData(signer.Address)
.Op(Instruction.EXTCODEHASH)
.Op(Instruction.PUSH0)
.Op(Instruction.SSTORE)
.Done;
DeployCode(codeSource, code);
_stateProvider.Commit(Prague.Instance, true);
Transaction tx = Build.A.Transaction
.WithTo(codeSource)
.WithGasLimit(100_000)
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_ = _transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), NullTxTracer.Instance);
StorageValue actual = _stateProvider.Get(new StorageCell(codeSource, 0));
Assert.That(actual.ToArray(), Is.EquivalentTo(expected));
}
public static IEnumerable<object[]> AccountAccessGasCases()
{
byte[] extcodesizeCode =
Prepare.EvmCode
.PushData(TestItem.AddressA)
.Op(Instruction.EXTCODESIZE)
.Done;
yield return new object[]
{
extcodesizeCode,
GasCostOf.Transaction
+ GasCostOf.ColdAccountAccess
+ GasCostOf.VeryLow,
true,
100_000,
false
};
yield return new object[]
{
extcodesizeCode,
23602,
true,
//Gas limit is set so it doesn't have enough for accessing the account
23602,
true
};
yield return new object[]
{
extcodesizeCode,
GasCostOf.Transaction
+ GasCostOf.ColdAccountAccess
+ GasCostOf.VeryLow,
false,
100_000,
false
};
byte[] extcodecopyCode =
Prepare.EvmCode
.Op(Instruction.PUSH0)
.Op(Instruction.PUSH0)
.Op(Instruction.PUSH0)
.PushData(TestItem.AddressA)
.Op(Instruction.EXTCODECOPY)
.Done;
yield return new object[]
{
extcodecopyCode,
GasCostOf.Transaction
+ GasCostOf.ColdAccountAccess
+ GasCostOf.VeryLow
+ GasCostOf.Base * 3,
true,
100_000,
false
};
yield return new object[]
{
extcodecopyCode,
GasCostOf.Transaction
+ GasCostOf.ColdAccountAccess
+ GasCostOf.VeryLow
+ GasCostOf.Base * 3,
false,
100_000,
false
};
byte[] extcodehashCode =
Prepare.EvmCode
.PushData(TestItem.AddressA)
.Op(Instruction.EXTCODEHASH)
.Done;
yield return new object[]
{
extcodehashCode,
GasCostOf.Transaction
+ GasCostOf.ColdAccountAccess
+ GasCostOf.VeryLow,
true,
100_000,
false
};
yield return new object[]
{
extcodehashCode,
GasCostOf.Transaction
+ GasCostOf.ColdAccountAccess
+ GasCostOf.VeryLow,
false,
100_000,
false
};
byte[] callOpcode =
Prepare.EvmCode
.PushData(0)
.PushData(0)
.PushData(0)
.PushData(0)
.PushData(0)
.PushData(TestItem.AddressA)
.PushData(0)
.Op(Instruction.CALL)
.Done;
yield return new object[]
{
callOpcode,
GasCostOf.Transaction
+ GasCostOf.WarmStateRead
+ GasCostOf.ColdAccountAccess
+ GasCostOf.VeryLow * 7,
true,
100_000,
false
};
yield return new object[]
{
callOpcode,
23621,
true,
//Gas limit is set so it doesn't have enough for accessing the account
23621,
true
};
yield return new object[]
{
callOpcode,
GasCostOf.Transaction
+ GasCostOf.ColdAccountAccess
+ GasCostOf.VeryLow * 7,
false,
100_000,
false
};
}
[TestCaseSource(nameof(AccountAccessGasCases))]
public void Execute_DiffentAccountAccessOpcodes_ChargesCorrectAccountAccessGas(byte[] code, long expectedGas, bool isDelegated, long gasLimit, bool shouldRunOutOfGas)
{
PrivateKey signer = TestItem.PrivateKeyA;
PrivateKey sender = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
Address secondDelegation = TestItem.AddressD;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
_stateProvider.CreateAccount(signer.Address, 0);
if (isDelegated)
{
//Delegation points to nothing
byte[] delegation = [.. Eip7702Constants.DelegationHeader, .. TestItem.AddressC.Bytes];
_stateProvider.InsertCode(signer.Address, delegation, Prague.Instance);
}
DeployCode(codeSource, code);
Transaction tx = Build.A.Transaction
.WithType(TxType.EIP1559)
.WithTo(codeSource)
.WithGasLimit(gasLimit)
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
EstimateGasTracer estimateGasTracer = new();
_ = _transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), estimateGasTracer);
Assert.That(estimateGasTracer.GasSpent, Is.EqualTo(expectedGas));
if (shouldRunOutOfGas)
{
Assert.That(estimateGasTracer.Error, Is.EqualTo(EvmExceptionType.OutOfGas.ToString()));
}
}
public static IEnumerable<object[]> CountsAsAccessedCases()
{
EthereumEcdsa ethereumEcdsa = new(BlockchainIds.GenericNonRealNetwork);
yield return new object[]
{
new AuthorizationTuple[]
{
ethereumEcdsa.Sign(TestItem.PrivateKeyA, 1, TestItem.AddressF, 0),
ethereumEcdsa.Sign(TestItem.PrivateKeyB, 1, TestItem.AddressF, 0),
},
new Address[]
{
TestItem.AddressA,
TestItem.AddressB
}
};
yield return new object[]
{
new AuthorizationTuple[]
{
ethereumEcdsa.Sign(TestItem.PrivateKeyA, 1, TestItem.AddressF, 0),
ethereumEcdsa.Sign(TestItem.PrivateKeyB, 2, TestItem.AddressF, 0),
},
new Address[]
{
TestItem.AddressA,
}
};
yield return new object[]
{
new AuthorizationTuple[]
{
ethereumEcdsa.Sign(TestItem.PrivateKeyA, 1, TestItem.AddressF, 0),
//Bad signature
new AuthorizationTuple(1, TestItem.AddressF, 0, new Signature(new byte[65]), TestItem.AddressA)
},
new Address[]
{
TestItem.AddressA,
}
};
}
[TestCaseSource(nameof(CountsAsAccessedCases))]
public void Execute_CombinationOfValidAndInvalidTuples_AddsTheCorrectAddressesToAccessedAddresses(AuthorizationTuple[] tuples, Address[] shouldCountAsAccessed)
{
PrivateKey sender = TestItem.PrivateKeyA;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(TestItem.AddressB)
.WithGasLimit(100_000)
.WithAuthorizationCode(tuples)
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
AccessTxTracer txTracer = new AccessTxTracer();
TransactionResult result = _transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), txTracer);
Assert.That(txTracer.AccessList.Select(static a => a.Address), Is.SupersetOf(shouldCountAsAccessed));
}
[TestCase(true)]
[TestCase(false)]
public void Execute_AuthorityAccountExistsOrNot_NonceIsIncrementedByOne(bool accountExists)
{
PrivateKey authority = TestItem.PrivateKeyA;
PrivateKey sender = TestItem.PrivateKeyB;
if (accountExists)
_stateProvider.CreateAccount(authority.Address, 0);
_stateProvider.CreateAccount(sender.Address, 1.Ether());
AuthorizationTuple[] tuples =
{
_ethereumEcdsa.Sign(authority, 1, sender.Address, 0),
};
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(TestItem.AddressB)
.WithGasLimit(100_000)
.WithAuthorizationCode(tuples)
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_ = _transactionProcessor.Execute(tx, new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header)), NullTxTracer.Instance);
Assert.That(_stateProvider.GetNonce(authority.Address), Is.EqualTo((UInt256)1));
}
[Test]
public void Execute_SetNormalDelegationAndThenSetDelegationWithZeroAddress_AccountCodeIsReset()
{
PrivateKey authority = TestItem.PrivateKeyA;
PrivateKey sender = TestItem.PrivateKeyB;
_stateProvider.CreateAccount(authority.Address, 0);
_stateProvider.CreateAccount(sender.Address, 1.Ether());
AuthorizationTuple[] tuples =
{
_ethereumEcdsa.Sign(authority, 1, sender.Address, 0),
};
Transaction tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithTo(TestItem.AddressB)
.WithGasLimit(100_000)
.WithAuthorizationCode(tuples)
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
Block block = Build.A.Block.WithNumber(long.MaxValue - 1)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
var blkCtx = new BlockExecutionContext(block.Header, _specProvider.GetSpec(block.Header));
_transactionProcessor.Execute(tx, blkCtx, NullTxTracer.Instance);
_stateProvider.CommitTree(block.Number);
byte[] actual = _stateProvider.GetCode(authority.Address);
Assert.That(Eip7702Constants.IsDelegatedCode(actual), Is.True);
tx = Build.A.Transaction
.WithType(TxType.SetCode)
.WithNonce(1)
.WithTo(TestItem.AddressB)
.WithGasLimit(100_000)
.WithAuthorizationCode(_ethereumEcdsa.Sign(authority, 1, Address.Zero, 1))
.SignedAndResolved(_ethereumEcdsa, sender, true)
.TestObject;
block = Build.A.Block.WithNumber(long.MaxValue)
.WithTimestamp(MainnetSpecProvider.PragueBlockTimestamp)
.WithTransactions(tx)
.WithGasLimit(10000000).TestObject;
_transactionProcessor.Execute(tx, blkCtx, NullTxTracer.Instance);
actual = _stateProvider.GetCode(authority.Address);
Assert.That(actual, Is.EqualTo(Array.Empty<byte>()));
Assert.That(_stateProvider.HasCode(authority.Address), Is.False);
}
[TestCase(true)]
[TestCase(false)]
public void Execute_EXTCODESIZEOnDelegatedThatTriggersOptimization_ReturnsZeroIfDelegated(bool isDelegated)
{
PrivateKey signer = TestItem.PrivateKeyA;
PrivateKey sender = TestItem.PrivateKeyB;
Address codeSource = TestItem.AddressC;
_stateProvider.CreateAccount(sender.Address, 1.Ether());
byte[] code = Prepare.EvmCode
.Op(Instruction.PUSH0)
.PushData(signer.Address)
.Op(Instruction.EXTCODESIZE)
.Op(Instruction.EQ)
.Op(Instruction.PUSH0)
.Op(Instruction.MSTORE8)
.PushData(1)
.Op(Instruction.PUSH0)
.Op(Instruction.RETURN)
.Done;
DeployCode(codeSource, code);
if (isDelegated)
{
byte[] delegation = [.. Eip7702Constants.DelegationHeader, .. codeSource.Bytes];
DeployCode(signer.Address, delegation);
}
_stateProvider.Commit(Prague.Instance, true);
Transaction tx = Build.A.Transaction
.WithTo(codeSource)
.WithGasLimit(100_000)
.SignedAndResolved(_ethereumEcdsa, sender, true)