public void Can_estimate_with_stipend()
{
byte[] initByteCode = Prepare.EvmCode
.CallWithValue(Address.Zero, 0, 1)
.Op(Instruction.STOP)
.Done;
long gasLimit = 100000;
Transaction tx = Build.A.Transaction.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeyA, _isEip155Enabled).WithInit(initByteCode).WithGasLimit(gasLimit).TestObject;
Block block = Build.A.Block.WithNumber(MainnetSpecProvider.MuirGlacierBlockNumber).WithTransactions(tx).WithGasLimit(2 * gasLimit).TestObject;
IntrinsicGasCalculator gasCalculator = new IntrinsicGasCalculator();
long intrinsic = gasCalculator.Calculate(tx, MuirGlacier.Instance);
GethLikeTxTracer gethTracer = new GethLikeTxTracer(GethTraceOptions.Default);
_transactionProcessor.CallAndRestore(tx, block.Header, gethTracer);
TestContext.WriteLine(new EthereumJsonSerializer().Serialize(gethTracer.BuildResult(), true));
EstimateGasTracer tracer = new EstimateGasTracer();
_transactionProcessor.CallAndRestore(tx, block.Header, tracer);
long actualIntrinsic = tx.GasLimit - tracer.IntrinsicGasAt;
actualIntrinsic.Should().Be(intrinsic);
tracer.CalculateAdditionalGasRequired(tx).Should().Be(2300);
tracer.GasSpent.Should().Be(85669L);
long estimate = tracer.CalculateEstimate(tx);
estimate.Should().Be(87969L);
ConfirmEnoughEstimate(tx, block, estimate);
}
public void Can_estimate_with_refund()
{
byte[] initByteCode = Prepare.EvmCode
.PushData(1)
.PushData(1)
.Op(Instruction.SSTORE)
.PushData(0)
.PushData(1)
.Op(Instruction.SSTORE)
.Op(Instruction.STOP)
.Done;
long gasLimit = 100000;
Transaction tx = Build.A.Transaction.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeyA, 1).WithInit(initByteCode).WithGasLimit(gasLimit).TestObject;
Block block = Build.A.Block.WithNumber(MainnetSpecProvider.MuirGlacierBlockNumber).WithTransactions(tx).WithGasLimit(2 * gasLimit).TestObject;
IntrinsicGasCalculator gasCalculator = new IntrinsicGasCalculator();
long intrinsic = gasCalculator.Calculate(tx, MuirGlacier.Instance);
GethLikeTxTracer gethTracer = new GethLikeTxTracer(GethTraceOptions.Default);
_transactionProcessor.CallAndRestore(tx, block.Header, gethTracer);
TestContext.WriteLine(new EthereumJsonSerializer().Serialize(gethTracer.BuildResult(), true));
EstimateGasTracer tracer = new EstimateGasTracer();
_transactionProcessor.CallAndRestore(tx, block.Header, tracer);
long actualIntrinsic = tx.GasLimit - tracer.IntrinsicGasAt;
actualIntrinsic.Should().Be(intrinsic);
tracer.CalculateAdditionalGasRequired(tx).Should().Be(RefundOf.SSetReversedEip2200 + GasCostOf.CallStipend - GasCostOf.SStoreNetMeteredEip2200 + 1);
tracer.GasSpent.Should().Be(54764L);
long estimate = tracer.CalculateEstimate(tx);
estimate.Should().Be(75465L);
ConfirmEnoughEstimate(tx, block, estimate);
}
public void Can_estimate_with_destroy_refund_and_below_intrinsic()
{
byte[] initByteCode = Prepare.EvmCode.ForInitOf(Prepare.EvmCode.PushData(Address.Zero).Op(Instruction.SELFDESTRUCT).Done).Done;
Address contractAddress = ContractAddress.From(TestItem.PrivateKeyA.Address, 0);
byte[] byteCode = Prepare.EvmCode
.Call(contractAddress, 46179)
.Op(Instruction.STOP).Done;
long gasLimit = 100000;
Transaction initTx = Build.A.Transaction.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeyA, _isEip155Enabled).WithInit(initByteCode).WithGasLimit(gasLimit).TestObject;
Transaction tx = Build.A.Transaction.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeyA, _isEip155Enabled).WithInit(byteCode).WithGasLimit(gasLimit).WithNonce(1).TestObject;
Block block = Build.A.Block.WithNumber(MainnetSpecProvider.MuirGlacierBlockNumber).WithTransactions(tx).WithGasLimit(2 * gasLimit).TestObject;
IntrinsicGasCalculator gasCalculator = new IntrinsicGasCalculator();
long intrinsic = gasCalculator.Calculate(tx, MuirGlacier.Instance);
_transactionProcessor.Execute(initTx, block.Header, NullTxTracer.Instance);
EstimateGasTracer tracer = new EstimateGasTracer();
GethLikeTxTracer gethTracer = new GethLikeTxTracer(GethTraceOptions.Default);
_transactionProcessor.CallAndRestore(tx, block.Header, tracer);
_transactionProcessor.CallAndRestore(tx, block.Header, gethTracer);
TestContext.WriteLine(new EthereumJsonSerializer().Serialize(gethTracer.BuildResult(), true));
long actualIntrinsic = tx.GasLimit - tracer.IntrinsicGasAt;
actualIntrinsic.Should().Be(intrinsic);
tracer.CalculateAdditionalGasRequired(tx).Should().Be(24080);
tracer.GasSpent.Should().Be(35228L);
long estimate = tracer.CalculateEstimate(tx);
estimate.Should().Be(59308);
ConfirmEnoughEstimate(tx, block, estimate);
}
public void Can_estimate_with_single_call()
{
byte[] initByteCode = Prepare.EvmCode
.ForInitOf(Bytes.FromHexString("6000")).Done;
Address contractAddress = ContractAddress.From(TestItem.PrivateKeyA.Address, 0);
byte[] byteCode = Prepare.EvmCode
.Call(contractAddress, 46179).Done;
long gasLimit = 100000;
Transaction initTx = Build.A.Transaction.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeyA, _isEip155Enabled).WithInit(initByteCode).WithGasLimit(gasLimit).TestObject;
Transaction tx = Build.A.Transaction.SignedAndResolved(_ethereumEcdsa, TestItem.PrivateKeyA, _isEip155Enabled).WithInit(byteCode).WithGasLimit(gasLimit).WithNonce(1).TestObject;
Block block = Build.A.Block.WithNumber(MainnetSpecProvider.MuirGlacierBlockNumber).WithTransactions(tx).WithGasLimit(2 * gasLimit).TestObject;
IntrinsicGasCalculator gasCalculator = new IntrinsicGasCalculator();
long intrinsic = gasCalculator.Calculate(tx, MuirGlacier.Instance);
_transactionProcessor.Execute(initTx, block.Header, NullTxTracer.Instance);
EstimateGasTracer tracer = new EstimateGasTracer();
_transactionProcessor.CallAndRestore(tx, block.Header, tracer);
long actualIntrinsic = tx.GasLimit - tracer.IntrinsicGasAt;
actualIntrinsic.Should().Be(intrinsic);
tracer.CalculateAdditionalGasRequired(tx).Should().Be(1);
tracer.GasSpent.Should().Be(54224L);
long estimate = tracer.CalculateEstimate(tx);
estimate.Should().Be(54225L);
ConfirmEnoughEstimate(tx, block, estimate);
}