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go-ethereum/core/vm/contracts_test.go
Tomasz Slabon 7aac5baf13
Added precompile context unit tests
2026-03-19 15:53:58 +01:00

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// Copyright 2017 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package vm
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"math/big"
"os"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/tracing"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/params"
"github.com/holiman/uint256"
)
// precompiledTest defines the input/output pairs for precompiled contract tests.
type precompiledTest struct {
Input, Expected string
Gas uint64
Name string
NoBenchmark bool // Benchmark primarily the worst-cases
}
// precompiledFailureTest defines the input/error pairs for precompiled
// contract failure tests.
type precompiledFailureTest struct {
Input string
ExpectedError string
Name string
}
// allPrecompiles does not map to the actual set of precompiles, as it also contains
// repriced versions of precompiles at certain slots
var allPrecompiles = map[common.Address]PrecompiledContract{
common.BytesToAddress([]byte{1}): &ecrecover{},
common.BytesToAddress([]byte{2}): &sha256hash{},
common.BytesToAddress([]byte{3}): &ripemd160hash{},
common.BytesToAddress([]byte{4}): &dataCopy{},
common.BytesToAddress([]byte{5}): &bigModExp{eip2565: false},
common.BytesToAddress([]byte{0xf5}): &bigModExp{eip2565: true},
common.BytesToAddress([]byte{6}): &bn256AddIstanbul{},
common.BytesToAddress([]byte{7}): &bn256ScalarMulIstanbul{},
common.BytesToAddress([]byte{8}): &bn256PairingIstanbul{},
common.BytesToAddress([]byte{9}): &blake2F{},
common.BytesToAddress([]byte{0x0a}): &kzgPointEvaluation{},
common.BytesToAddress([]byte{0x0f, 0x0a}): &bls12381G1Add{},
common.BytesToAddress([]byte{0x0f, 0x0b}): &bls12381G1Mul{},
common.BytesToAddress([]byte{0x0f, 0x0c}): &bls12381G1MultiExp{},
common.BytesToAddress([]byte{0x0f, 0x0d}): &bls12381G2Add{},
common.BytesToAddress([]byte{0x0f, 0x0e}): &bls12381G2Mul{},
common.BytesToAddress([]byte{0x0f, 0x0f}): &bls12381G2MultiExp{},
common.BytesToAddress([]byte{0x0f, 0x10}): &bls12381Pairing{},
common.BytesToAddress([]byte{0x0f, 0x11}): &bls12381MapG1{},
common.BytesToAddress([]byte{0x0f, 0x12}): &bls12381MapG2{},
}
// EIP-152 test vectors
var blake2FMalformedInputTests = []precompiledFailureTest{
{
Input: "",
ExpectedError: errBlake2FInvalidInputLength.Error(),
Name: "vector 0: empty input",
},
{
Input: "00000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
ExpectedError: errBlake2FInvalidInputLength.Error(),
Name: "vector 1: less than 213 bytes input",
},
{
Input: "000000000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000001",
ExpectedError: errBlake2FInvalidInputLength.Error(),
Name: "vector 2: more than 213 bytes input",
},
{
Input: "0000000c48c9bdf267e6096a3ba7ca8485ae67bb2bf894fe72f36e3cf1361d5f3af54fa5d182e6ad7f520e511f6c3e2b8c68059b6bbd41fbabd9831f79217e1319cde05b61626300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000002",
ExpectedError: errBlake2FInvalidFinalFlag.Error(),
Name: "vector 3: malformed final block indicator flag",
},
}
func testPrecompiled(addr string, test precompiledTest, t *testing.T) {
p := allPrecompiles[common.HexToAddress(addr)]
in := common.Hex2Bytes(test.Input)
gas := p.RequiredGas(in)
t.Run(fmt.Sprintf("%s-Gas=%d", test.Name, gas), func(t *testing.T) {
if res, _, err := runPrecompiledContract(&EVM{}, p, AccountRef(common.Address{}), in, gas, new(uint256.Int), false); err != nil {
t.Error(err)
} else if common.Bytes2Hex(res) != test.Expected {
t.Errorf("Expected %v, got %v", test.Expected, common.Bytes2Hex(res))
}
if expGas := test.Gas; expGas != gas {
t.Errorf("%v: gas wrong, expected %d, got %d", test.Name, expGas, gas)
}
// Verify that the precompile did not touch the input buffer
exp := common.Hex2Bytes(test.Input)
if !bytes.Equal(in, exp) {
t.Errorf("Precompiled %v modified input data", addr)
}
})
}
func testPrecompiledOOG(addr string, test precompiledTest, t *testing.T) {
p := allPrecompiles[common.HexToAddress(addr)]
in := common.Hex2Bytes(test.Input)
gas := p.RequiredGas(in) - 1
t.Run(fmt.Sprintf("%s-Gas=%d", test.Name, gas), func(t *testing.T) {
_, _, err := runPrecompiledContract(&EVM{}, p, AccountRef(common.Address{}), in, gas, new(uint256.Int), false)
if err.Error() != "out of gas" {
t.Errorf("Expected error [out of gas], got [%v]", err)
}
// Verify that the precompile did not touch the input buffer
exp := common.Hex2Bytes(test.Input)
if !bytes.Equal(in, exp) {
t.Errorf("Precompiled %v modified input data", addr)
}
})
}
func testPrecompiledFailure(addr string, test precompiledFailureTest, t *testing.T) {
p := allPrecompiles[common.HexToAddress(addr)]
in := common.Hex2Bytes(test.Input)
gas := p.RequiredGas(in)
t.Run(test.Name, func(t *testing.T) {
_, _, err := runPrecompiledContract(&EVM{}, p, AccountRef(common.Address{}), in, gas, new(uint256.Int), false)
if err.Error() != test.ExpectedError {
t.Errorf("Expected error [%v], got [%v]", test.ExpectedError, err)
}
// Verify that the precompile did not touch the input buffer
exp := common.Hex2Bytes(test.Input)
if !bytes.Equal(in, exp) {
t.Errorf("Precompiled %v modified input data", addr)
}
})
}
func benchmarkPrecompiled(addr string, test precompiledTest, bench *testing.B) {
if test.NoBenchmark {
return
}
p := allPrecompiles[common.HexToAddress(addr)]
in := common.Hex2Bytes(test.Input)
reqGas := p.RequiredGas(in)
var (
res []byte
err error
data = make([]byte, len(in))
)
bench.Run(fmt.Sprintf("%s-Gas=%d", test.Name, reqGas), func(bench *testing.B) {
bench.ReportAllocs()
start := time.Now()
bench.ResetTimer()
for i := 0; i < bench.N; i++ {
copy(data, in)
res, _, err = runPrecompiledContract(&EVM{}, p, AccountRef(common.Address{}), in, reqGas, new(uint256.Int), false)
}
bench.StopTimer()
elapsed := uint64(time.Since(start))
if elapsed < 1 {
elapsed = 1
}
gasUsed := reqGas * uint64(bench.N)
bench.ReportMetric(float64(reqGas), "gas/op")
// Keep it as uint64, multiply 100 to get two digit float later
mgasps := (100 * 1000 * gasUsed) / elapsed
bench.ReportMetric(float64(mgasps)/100, "mgas/s")
//Check if it is correct
if err != nil {
bench.Error(err)
return
}
if common.Bytes2Hex(res) != test.Expected {
bench.Errorf("Expected %v, got %v", test.Expected, common.Bytes2Hex(res))
return
}
})
}
// mockPrecompile is a test precompile used to record the arguments it is
// executed with.
type mockPrecompile struct {
addr common.Address
gas uint64
observedCaller common.Address
observedAddress common.Address
observedOrigin common.Address
observedValue *uint256.Int
observedInput []byte
observedReadOnly bool
}
func (p *mockPrecompile) Address() common.Address {
return p.addr
}
func (p *mockPrecompile) RequiredGas(input []byte) uint64 {
return p.gas
}
func (p *mockPrecompile) Run(evm *EVM, contract *Contract, readonly bool) ([]byte, error) {
// Record the execution arguments observed by the test precompile.
p.observedCaller = contract.Caller()
p.observedAddress = contract.Address()
if contract.Value() != nil {
p.observedValue = new(uint256.Int).Set(contract.Value())
}
p.observedInput = common.CopyBytes(contract.Input)
p.observedReadOnly = readonly
if evm != nil {
p.observedOrigin = evm.TxContext.Origin
}
return []byte{0xaa}, nil
}
type precompileContextExpectation struct {
caller common.Address
origin common.Address
readOnly bool
assertValue func(*testing.T, *uint256.Int)
}
func expectNilValue(t *testing.T, observed *uint256.Int) {
if observed != nil {
t.Fatalf("unexpected call value: want nil got %v", observed)
}
}
func expectZeroValue(t *testing.T, observed *uint256.Int) {
if observed == nil || !observed.IsZero() {
t.Fatalf("unexpected call value: want 0 got %v", observed)
}
}
func expectExactValue(expected *uint256.Int) func(*testing.T, *uint256.Int) {
return func(t *testing.T, observed *uint256.Int) {
t.Helper()
if observed == nil || observed.Cmp(expected) != 0 {
t.Fatalf("unexpected call value: want %s got %v", expected, observed)
}
}
}
func assertExpectedError(t *testing.T, err error, expectedErr error) {
t.Helper()
switch {
case expectedErr == nil && err == nil:
return
case expectedErr == nil && err != nil:
t.Fatalf("unexpected error: %v", err)
case expectedErr != nil && err == nil:
t.Fatalf("unexpected error: want %v got nil", expectedErr)
case err.Error() != expectedErr.Error():
t.Fatalf("unexpected error: want %v got %v", expectedErr, err)
}
}
func newPrecompileTestEVM(t *testing.T, origin common.Address) *EVM {
statedb, err := state.New(types.EmptyRootHash, state.NewDatabase(rawdb.NewMemoryDatabase()), nil)
if err != nil {
t.Fatalf("failed to create state db: %v", err)
}
return NewEVM(BlockContext{
CanTransfer: func(db StateDB, addr common.Address, amount *uint256.Int) bool {
return db.GetBalance(addr).Cmp(amount) >= 0
},
Transfer: func(db StateDB, from, to common.Address, amount *uint256.Int) {
if amount.IsZero() {
return
}
db.SubBalance(from, amount, tracing.BalanceChangeTransfer)
db.AddBalance(to, amount, tracing.BalanceChangeTransfer)
},
BlockNumber: new(big.Int),
}, TxContext{Origin: origin}, statedb, params.AllEthashProtocolChanges, Config{})
}
func addBalance(evm *EVM, addr common.Address, amount *uint256.Int) {
evm.StateDB.CreateAccount(addr)
evm.StateDB.AddBalance(addr, amount, tracing.BalanceChangeUnspecified)
}
func assertPrecompileContext(
t *testing.T,
precompile *mockPrecompile,
precompileAddr common.Address,
input []byte,
remainingGas uint64,
suppliedGas uint64,
gasCost uint64,
expect precompileContextExpectation,
) {
if remainingGas != suppliedGas-gasCost {
t.Fatalf("unexpected remaining gas: want %d got %d", suppliedGas-gasCost, remainingGas)
}
if precompile.observedCaller != expect.caller {
t.Fatalf("unexpected caller: want %s got %s", expect.caller, precompile.observedCaller)
}
if precompile.observedAddress != precompileAddr {
t.Fatalf("unexpected contract address: want %s got %s", precompileAddr, precompile.observedAddress)
}
if precompile.observedOrigin != expect.origin {
t.Fatalf("unexpected origin: want %s got %s", expect.origin, precompile.observedOrigin)
}
expect.assertValue(t, precompile.observedValue)
if !bytes.Equal(precompile.observedInput, input) {
t.Fatalf("unexpected input: want %x got %x", input, precompile.observedInput)
}
if precompile.observedReadOnly != expect.readOnly {
t.Fatalf("unexpected readonly flag: want %t got %t", expect.readOnly, precompile.observedReadOnly)
}
}
func TestEVMExecutePrecompileWithExpectedCallContexts(t *testing.T) {
const (
suppliedGas = uint64(100)
gasCost = uint64(10)
)
// callerAddr models msg.sender, the immediate caller seen by the precompile
// in that call frame.
callerAddr := common.HexToAddress("0x6001")
// originAddr models tx.origin, the address that started the transaction.
originAddr := common.HexToAddress("0x6002")
// precompileAddr is the address used to register the test precompile.
precompileAddr := common.HexToAddress("0x6003")
// calldata is the calldata sent to the precompile.
calldata := []byte{0x01, 0x02}
// delegateParentAddr is used to build the outer delegatecall frame.
delegateParentAddr := common.HexToAddress("0x5002")
// delegateCallerAddr is used in the delegatecall case, where the
// preserved delegate context is seen by the precompile as the caller.
delegateCallerAddr := common.HexToAddress("0x5003")
testCases := []struct {
name string
prepareCaller func(*EVM) ContractRef
executePrecompile func(*EVM, *mockPrecompile, ContractRef) ([]byte, uint64, error)
expect precompileContextExpectation
}{
{
name: "call",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, uint256.NewInt(1000))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, precompile *mockPrecompile, caller ContractRef) ([]byte, uint64, error) {
return evm.Call(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(13))
},
expect: precompileContextExpectation{
caller: callerAddr,
origin: originAddr,
readOnly: false,
assertValue: expectExactValue(uint256.NewInt(13)),
},
},
{
name: "staticcall",
prepareCaller: func(evm *EVM) ContractRef {
evm.StateDB.CreateAccount(callerAddr)
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, precompile *mockPrecompile, caller ContractRef) ([]byte, uint64, error) {
return evm.StaticCall(caller, precompileAddr, calldata, suppliedGas)
},
expect: precompileContextExpectation{
caller: callerAddr,
origin: originAddr,
readOnly: true,
assertValue: expectZeroValue,
},
},
{
name: "delegatecall",
prepareCaller: func(evm *EVM) ContractRef {
evm.StateDB.CreateAccount(delegateCallerAddr)
// Build a parent frame to simulate a delegatecall setup.
// In regular contract DELEGATECALL, caller context is derived
// from the parent frame. For precompiles, the implementation behaves
// like CALL for caller identity: the direct caller (delegateCallerAddr)
// is observed by the precompile, not the parent frame.
parent := NewContract(AccountRef(callerAddr), AccountRef(delegateParentAddr), uint256.NewInt(17), suppliedGas)
return NewContract(parent, AccountRef(delegateCallerAddr), nil, suppliedGas)
},
executePrecompile: func(evm *EVM, precompile *mockPrecompile, caller ContractRef) ([]byte, uint64, error) {
return evm.DelegateCall(caller, precompileAddr, calldata, suppliedGas)
},
// DELEGATECALL to a precompile is read-only. It keeps the direct caller
// which in this test is the caller passed to `evm.DelegateCall`
// (delegateCallerAddr). This differs from regular contract DELEGATECALL
// semantics, where caller context is derived from the parent frame
// via AsDelegate.
expect: precompileContextExpectation{
caller: delegateCallerAddr,
origin: originAddr,
readOnly: true,
assertValue: expectNilValue,
},
},
{
name: "callcode",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, uint256.NewInt(1000))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, precompile *mockPrecompile, caller ContractRef) ([]byte, uint64, error) {
return evm.CallCode(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(19))
},
// CALLCODE to a precompile is always read-only, unlike CALLCODE to
// a regular contract.
expect: precompileContextExpectation{
caller: callerAddr,
origin: originAddr,
readOnly: true,
assertValue: expectExactValue(uint256.NewInt(19)),
},
},
{
name: "runPrecompiledContract",
prepareCaller: func(evm *EVM) ContractRef {
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, precompile *mockPrecompile, caller ContractRef) ([]byte, uint64, error) {
// Execute the precompile via the low-level helper.
return runPrecompiledContract(evm, precompile, caller, calldata, suppliedGas, uint256.NewInt(42), true)
},
expect: precompileContextExpectation{
caller: callerAddr,
origin: originAddr,
readOnly: true,
assertValue: expectExactValue(uint256.NewInt(42)),
},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
evm := newPrecompileTestEVM(t, originAddr)
precompile := &mockPrecompile{addr: precompileAddr, gas: gasCost}
evm.WithPrecompiles(map[common.Address]PrecompiledContract{precompileAddr: precompile}, []common.Address{precompileAddr})
caller := tc.prepareCaller(evm)
ret, remainingGas, err := tc.executePrecompile(evm, precompile, caller)
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if !bytes.Equal(ret, []byte{0xaa}) {
t.Fatalf("unexpected return data: %x", ret)
}
assertPrecompileContext(t, precompile, precompileAddr, calldata, remainingGas, suppliedGas, gasCost, tc.expect)
})
}
}
// balanceMutatingMockPrecompile is a test precompile that mutates balances.
type balanceMutatingMockPrecompile struct {
addr common.Address
gas uint64
from common.Address
to common.Address
amount *uint256.Int
}
func (p *balanceMutatingMockPrecompile) Address() common.Address {
return p.addr
}
func (p *balanceMutatingMockPrecompile) RequiredGas(input []byte) uint64 {
return p.gas
}
func (p *balanceMutatingMockPrecompile) Run(evm *EVM, contract *Contract, readonly bool) ([]byte, error) {
if readonly {
return nil, fmt.Errorf("cannot run in read-only mode")
}
evm.StateDB.SubBalance(p.from, p.amount, tracing.BalanceChangeTransfer)
evm.StateDB.AddBalance(p.to, p.amount, tracing.BalanceChangeTransfer)
return []byte{0xaa}, nil
}
func TestEVMCallExecutesPrecompileStateMutation(t *testing.T) {
const (
suppliedGas = uint64(100)
gasCost = uint64(10)
)
callerAddr := common.HexToAddress("0x7001")
originAddr := common.HexToAddress("0x7002")
precompileAddr := common.HexToAddress("0x7003")
recipientAddr := common.HexToAddress("0x7004")
calldata := []byte{0x01}
delegateParentAddr := common.HexToAddress("0x7101")
delegateCallerAddr := common.HexToAddress("0x7102")
initialCallerBalance := uint256.NewInt(100)
transferAmount := uint256.NewInt(7)
testCases := []struct {
name string
prepareCaller func(*EVM) ContractRef
executePrecompile func(*EVM, ContractRef) ([]byte, uint64, error)
expectedErr error
expectedRet []byte
expectedGas uint64
expectedCallerBal *uint256.Int
expectedTargetBal *uint256.Int
}{
{
name: "call",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
addBalance(evm, recipientAddr, uint256.NewInt(0))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.Call(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(0))
},
expectedRet: []byte{0xaa},
expectedGas: suppliedGas - gasCost,
expectedCallerBal: uint256.NewInt(93),
expectedTargetBal: uint256.NewInt(7),
},
{
name: "staticcall",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
addBalance(evm, recipientAddr, uint256.NewInt(0))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.StaticCall(caller, precompileAddr, calldata, suppliedGas)
},
expectedErr: errors.New("cannot run in read-only mode"),
expectedRet: nil,
expectedGas: 0,
expectedCallerBal: initialCallerBalance,
expectedTargetBal: uint256.NewInt(0),
},
{
name: "delegatecall",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
addBalance(evm, recipientAddr, uint256.NewInt(0))
evm.StateDB.CreateAccount(delegateCallerAddr)
parent := NewContract(AccountRef(callerAddr), AccountRef(delegateParentAddr), uint256.NewInt(0), suppliedGas)
return NewContract(parent, AccountRef(delegateCallerAddr), nil, suppliedGas)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.DelegateCall(caller, precompileAddr, calldata, suppliedGas)
},
expectedErr: errors.New("cannot run in read-only mode"),
expectedRet: nil,
expectedGas: 0,
expectedCallerBal: initialCallerBalance,
expectedTargetBal: uint256.NewInt(0),
},
{
name: "callcode",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
addBalance(evm, recipientAddr, uint256.NewInt(0))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.CallCode(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(0))
},
expectedErr: errors.New("cannot run in read-only mode"),
expectedRet: nil,
expectedGas: 0,
expectedCallerBal: initialCallerBalance,
expectedTargetBal: uint256.NewInt(0),
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
evm := newPrecompileTestEVM(t, originAddr)
precompile := &balanceMutatingMockPrecompile{
addr: precompileAddr,
gas: gasCost,
from: callerAddr,
to: recipientAddr,
amount: transferAmount,
}
evm.WithPrecompiles(map[common.Address]PrecompiledContract{precompileAddr: precompile}, []common.Address{precompileAddr})
caller := tc.prepareCaller(evm)
ret, remainingGas, err := tc.executePrecompile(evm, caller)
assertExpectedError(t, err, tc.expectedErr)
if !bytes.Equal(ret, tc.expectedRet) {
t.Fatalf("unexpected return data: want %x got %x", tc.expectedRet, ret)
}
if remainingGas != tc.expectedGas {
t.Fatalf("unexpected remaining gas: want %d got %d", tc.expectedGas, remainingGas)
}
// Verify whether the precompile state mutation is persisted.
callerBalance := evm.StateDB.GetBalance(callerAddr)
if callerBalance.Cmp(tc.expectedCallerBal) != 0 {
t.Fatalf("unexpected caller balance: want %s got %s", tc.expectedCallerBal, callerBalance)
}
targetBalance := evm.StateDB.GetBalance(recipientAddr)
if targetBalance.Cmp(tc.expectedTargetBal) != 0 {
t.Fatalf("unexpected recipient balance: want %s got %s", tc.expectedTargetBal, targetBalance)
}
})
}
}
var errBalanceMutatingMockPrecompile = errors.New("balance-mutating precompile failed")
// balanceMutatingErrorMockPrecompile is a test precompile that mutates
// balances and then returns an error.
type balanceMutatingErrorMockPrecompile struct {
addr common.Address
gas uint64
from common.Address
to common.Address
amount *uint256.Int
}
func (p *balanceMutatingErrorMockPrecompile) Address() common.Address {
return p.addr
}
func (p *balanceMutatingErrorMockPrecompile) RequiredGas(input []byte) uint64 {
return p.gas
}
func (p *balanceMutatingErrorMockPrecompile) Run(evm *EVM, contract *Contract, readonly bool) ([]byte, error) {
// Intentionally ignore readonly so the tests can verify that all call modes
// roll back state changes when the precompile returns an error.
evm.StateDB.SubBalance(p.from, p.amount, tracing.BalanceChangeTransfer)
evm.StateDB.AddBalance(p.to, p.amount, tracing.BalanceChangeTransfer)
return nil, errBalanceMutatingMockPrecompile
}
func TestEVMCallRevertsPrecompileStateMutationOnError(t *testing.T) {
const (
suppliedGas = uint64(100)
gasCost = uint64(10)
)
callerAddr := common.HexToAddress("0x9001")
originAddr := common.HexToAddress("0x9002")
precompileAddr := common.HexToAddress("0x9003")
recipientAddr := common.HexToAddress("0x9004")
calldata := []byte{0x01}
delegateParentAddr := common.HexToAddress("0x9101")
delegateCallerAddr := common.HexToAddress("0x9102")
initialCallerBalance := uint256.NewInt(100)
transferAmount := uint256.NewInt(7)
testCases := []struct {
name string
prepareCaller func(*EVM) ContractRef
executePrecompile func(*EVM, ContractRef) ([]byte, uint64, error)
expectedErr error
expectedGas uint64
}{
{
name: "call",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
addBalance(evm, recipientAddr, uint256.NewInt(0))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.Call(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(0))
},
expectedErr: errBalanceMutatingMockPrecompile,
expectedGas: 0,
},
{
name: "staticcall",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
addBalance(evm, recipientAddr, uint256.NewInt(0))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.StaticCall(caller, precompileAddr, calldata, suppliedGas)
},
expectedErr: errBalanceMutatingMockPrecompile,
expectedGas: 0,
},
{
name: "delegatecall",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
addBalance(evm, recipientAddr, uint256.NewInt(0))
evm.StateDB.CreateAccount(delegateCallerAddr)
parent := NewContract(AccountRef(callerAddr), AccountRef(delegateParentAddr), uint256.NewInt(0), suppliedGas)
return NewContract(parent, AccountRef(delegateCallerAddr), nil, suppliedGas)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.DelegateCall(caller, precompileAddr, calldata, suppliedGas)
},
expectedErr: errBalanceMutatingMockPrecompile,
expectedGas: 0,
},
{
name: "callcode",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
addBalance(evm, recipientAddr, uint256.NewInt(0))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.CallCode(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(0))
},
expectedErr: errBalanceMutatingMockPrecompile,
expectedGas: 0,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
evm := newPrecompileTestEVM(t, originAddr)
precompile := &balanceMutatingErrorMockPrecompile{
addr: precompileAddr,
gas: gasCost,
from: callerAddr,
to: recipientAddr,
amount: transferAmount,
}
evm.WithPrecompiles(map[common.Address]PrecompiledContract{precompileAddr: precompile}, []common.Address{precompileAddr})
caller := tc.prepareCaller(evm)
_, remainingGas, err := tc.executePrecompile(evm, caller)
assertExpectedError(t, err, tc.expectedErr)
if remainingGas != tc.expectedGas {
t.Fatalf("unexpected remaining gas: want %d got %d", tc.expectedGas, remainingGas)
}
// Verify that the attempted state mutation is reverted.
callerBalance := evm.StateDB.GetBalance(callerAddr)
if callerBalance.Cmp(initialCallerBalance) != 0 {
t.Fatalf("unexpected caller balance: want %s got %s", initialCallerBalance, callerBalance)
}
targetBalance := evm.StateDB.GetBalance(recipientAddr)
if !targetBalance.IsZero() {
t.Fatalf("unexpected recipient balance: want 0 got %s", targetBalance)
}
})
}
}
// runTrackingMockPrecompile is a test precompile that records whether
// Run was entered.
type runTrackingMockPrecompile struct {
addr common.Address
gas uint64
runExecuted bool
}
func (p *runTrackingMockPrecompile) Address() common.Address {
return p.addr
}
func (p *runTrackingMockPrecompile) RequiredGas(input []byte) uint64 {
return p.gas
}
func (p *runTrackingMockPrecompile) Run(evm *EVM, contract *Contract, readonly bool) ([]byte, error) {
// This mock only tracks whether Run was entered, so it intentionally ignores
// readonly and always succeeds if execution reaches it.
p.runExecuted = true
return []byte{0xaa}, nil
}
func TestEVMPrecompileOutOfGas(t *testing.T) {
const (
// use more gas than supplied
suppliedGas = uint64(9)
gasCost = uint64(10)
)
callerAddr := common.HexToAddress("0x8001")
originAddr := common.HexToAddress("0x8002")
precompileAddr := common.HexToAddress("0x8003")
calldata := []byte{0x01}
delegateParentAddr := common.HexToAddress("0x8101")
delegateCallerAddr := common.HexToAddress("0x8102")
testCases := []struct {
name string
callerAddr common.Address
callerBalance *uint256.Int
prepareCaller func(*EVM) ContractRef
executePrecompile func(*EVM, ContractRef) ([]byte, uint64, error)
}{
{
name: "call",
callerAddr: callerAddr,
callerBalance: uint256.NewInt(100),
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, uint256.NewInt(100))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.Call(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(0))
},
},
{
name: "staticcall",
callerAddr: callerAddr,
callerBalance: uint256.NewInt(0),
prepareCaller: func(evm *EVM) ContractRef {
evm.StateDB.CreateAccount(callerAddr)
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.StaticCall(caller, precompileAddr, calldata, suppliedGas)
},
},
{
name: "delegatecall",
callerAddr: delegateCallerAddr,
callerBalance: uint256.NewInt(0),
prepareCaller: func(evm *EVM) ContractRef {
evm.StateDB.CreateAccount(delegateCallerAddr)
parent := NewContract(AccountRef(callerAddr), AccountRef(delegateParentAddr), uint256.NewInt(0), suppliedGas)
return NewContract(parent, AccountRef(delegateCallerAddr), nil, suppliedGas)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.DelegateCall(caller, precompileAddr, calldata, suppliedGas)
},
},
{
name: "callcode",
callerAddr: callerAddr,
callerBalance: uint256.NewInt(100),
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, uint256.NewInt(100))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.CallCode(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(0))
},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
evm := newPrecompileTestEVM(t, originAddr)
precompile := &runTrackingMockPrecompile{addr: precompileAddr, gas: gasCost}
evm.WithPrecompiles(map[common.Address]PrecompiledContract{precompileAddr: precompile}, []common.Address{precompileAddr})
caller := tc.prepareCaller(evm)
_, remainingGas, err := tc.executePrecompile(evm, caller)
if err != ErrOutOfGas {
t.Fatalf("unexpected error: want %v got %v", ErrOutOfGas, err)
}
if remainingGas != 0 {
t.Fatalf("unexpected remaining gas: want 0 got %d", remainingGas)
}
if precompile.runExecuted {
t.Fatal("precompile should not execute when gas is insufficient")
}
callerBalance := evm.StateDB.GetBalance(tc.callerAddr)
if callerBalance.Cmp(tc.callerBalance) != 0 {
t.Fatalf("unexpected caller balance: want %s got %s", tc.callerBalance, callerBalance)
}
if evm.StateDB.Exist(precompileAddr) {
t.Fatal("precompile account should not remain touched after out-of-gas")
}
})
}
}
func TestEVMPrecompileInsufficientBalance(t *testing.T) {
const (
suppliedGas = uint64(100)
gasCost = uint64(10)
)
callerAddr := common.HexToAddress("0xa001")
originAddr := common.HexToAddress("0xa002")
precompileAddr := common.HexToAddress("0xa003")
calldata := []byte{0x01}
delegateParentAddr := common.HexToAddress("0xa101")
delegateCallerAddr := common.HexToAddress("0xa102")
// Balance lower than call value.
initialCallerBalance := uint256.NewInt(5)
callValue := uint256.NewInt(13)
testCases := []struct {
name string
prepareCaller func(*EVM) ContractRef
executePrecompile func(*EVM, ContractRef) ([]byte, uint64, error)
expectedErr error
expectedGas uint64
expectedRun bool
expectedCallerBal *uint256.Int
}{
{
name: "call",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.Call(caller, precompileAddr, calldata, suppliedGas, callValue)
},
expectedErr: ErrInsufficientBalance,
expectedGas: suppliedGas,
expectedRun: false,
expectedCallerBal: initialCallerBalance,
},
{
name: "callcode",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, initialCallerBalance)
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.CallCode(caller, precompileAddr, calldata, suppliedGas, callValue)
},
expectedErr: ErrInsufficientBalance,
expectedGas: suppliedGas,
expectedRun: false,
expectedCallerBal: initialCallerBalance,
},
{
name: "staticcall",
prepareCaller: func(evm *EVM) ContractRef {
evm.StateDB.CreateAccount(callerAddr)
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.StaticCall(caller, precompileAddr, calldata, suppliedGas)
},
expectedGas: suppliedGas - gasCost,
expectedRun: true,
expectedCallerBal: uint256.NewInt(0),
},
{
name: "delegatecall",
prepareCaller: func(evm *EVM) ContractRef {
evm.StateDB.CreateAccount(delegateCallerAddr)
parent := NewContract(AccountRef(callerAddr), AccountRef(delegateParentAddr), uint256.NewInt(0), suppliedGas)
return NewContract(parent, AccountRef(delegateCallerAddr), nil, suppliedGas)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.DelegateCall(caller, precompileAddr, calldata, suppliedGas)
},
expectedGas: suppliedGas - gasCost,
expectedRun: true,
expectedCallerBal: uint256.NewInt(0),
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
evm := newPrecompileTestEVM(t, originAddr)
precompile := &runTrackingMockPrecompile{addr: precompileAddr, gas: gasCost}
evm.WithPrecompiles(map[common.Address]PrecompiledContract{precompileAddr: precompile}, []common.Address{precompileAddr})
caller := tc.prepareCaller(evm)
_, remainingGas, err := tc.executePrecompile(evm, caller)
assertExpectedError(t, err, tc.expectedErr)
if remainingGas != tc.expectedGas {
t.Fatalf("unexpected remaining gas: want %d got %d", tc.expectedGas, remainingGas)
}
if precompile.runExecuted != tc.expectedRun {
t.Fatalf("unexpected run flag: want %t got %t", tc.expectedRun, precompile.runExecuted)
}
callerBalance := evm.StateDB.GetBalance(callerAddr)
if callerBalance.Cmp(tc.expectedCallerBal) != 0 {
t.Fatalf("unexpected caller balance: want %s got %s", tc.expectedCallerBal, callerBalance)
}
})
}
}
func TestEVMPrecompileCallDepthExceeded(t *testing.T) {
const suppliedGas = uint64(100)
callerAddr := common.HexToAddress("0xb001")
originAddr := common.HexToAddress("0xb002")
precompileAddr := common.HexToAddress("0xb003")
calldata := []byte{0x01}
delegateParentAddr := common.HexToAddress("0xb101")
delegateCallerAddr := common.HexToAddress("0xb102")
testCases := []struct {
name string
prepareCaller func(*EVM) ContractRef
executePrecompile func(*EVM, ContractRef) ([]byte, uint64, error)
}{
{
name: "call",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, uint256.NewInt(100))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.Call(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(0))
},
},
{
name: "staticcall",
prepareCaller: func(evm *EVM) ContractRef {
evm.StateDB.CreateAccount(callerAddr)
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.StaticCall(caller, precompileAddr, calldata, suppliedGas)
},
},
{
name: "delegatecall",
prepareCaller: func(evm *EVM) ContractRef {
evm.StateDB.CreateAccount(delegateCallerAddr)
parent := NewContract(AccountRef(callerAddr), AccountRef(delegateParentAddr), uint256.NewInt(0), suppliedGas)
return NewContract(parent, AccountRef(delegateCallerAddr), nil, suppliedGas)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.DelegateCall(caller, precompileAddr, calldata, suppliedGas)
},
},
{
name: "callcode",
prepareCaller: func(evm *EVM) ContractRef {
addBalance(evm, callerAddr, uint256.NewInt(100))
return AccountRef(callerAddr)
},
executePrecompile: func(evm *EVM, caller ContractRef) ([]byte, uint64, error) {
return evm.CallCode(caller, precompileAddr, calldata, suppliedGas, uint256.NewInt(0))
},
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
evm := newPrecompileTestEVM(t, originAddr)
evm.depth = int(params.CallCreateDepth) + 1
precompile := &runTrackingMockPrecompile{addr: precompileAddr, gas: 1}
evm.WithPrecompiles(map[common.Address]PrecompiledContract{precompileAddr: precompile}, []common.Address{precompileAddr})
caller := tc.prepareCaller(evm)
_, remainingGas, err := tc.executePrecompile(evm, caller)
if err != ErrDepth {
t.Fatalf("unexpected error: want %v got %v", ErrDepth, err)
}
if remainingGas != suppliedGas {
t.Fatalf("unexpected remaining gas: want %d got %d", suppliedGas, remainingGas)
}
if precompile.runExecuted {
t.Fatal("precompile should not execute when call depth is exceeded")
}
})
}
}
// Benchmarks the sample inputs from the ECRECOVER precompile.
func BenchmarkPrecompiledEcrecover(bench *testing.B) {
t := precompiledTest{
Input: "38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e000000000000000000000000000000000000000000000000000000000000001b38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e789d1dd423d25f0772d2748d60f7e4b81bb14d086eba8e8e8efb6dcff8a4ae02",
Expected: "000000000000000000000000ceaccac640adf55b2028469bd36ba501f28b699d",
Name: "",
}
benchmarkPrecompiled("01", t, bench)
}
// Benchmarks the sample inputs from the SHA256 precompile.
func BenchmarkPrecompiledSha256(bench *testing.B) {
t := precompiledTest{
Input: "38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e000000000000000000000000000000000000000000000000000000000000001b38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e789d1dd423d25f0772d2748d60f7e4b81bb14d086eba8e8e8efb6dcff8a4ae02",
Expected: "811c7003375852fabd0d362e40e68607a12bdabae61a7d068fe5fdd1dbbf2a5d",
Name: "128",
}
benchmarkPrecompiled("02", t, bench)
}
// Benchmarks the sample inputs from the RIPEMD precompile.
func BenchmarkPrecompiledRipeMD(bench *testing.B) {
t := precompiledTest{
Input: "38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e000000000000000000000000000000000000000000000000000000000000001b38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e789d1dd423d25f0772d2748d60f7e4b81bb14d086eba8e8e8efb6dcff8a4ae02",
Expected: "0000000000000000000000009215b8d9882ff46f0dfde6684d78e831467f65e6",
Name: "128",
}
benchmarkPrecompiled("03", t, bench)
}
// Benchmarks the sample inputs from the identity precompile.
func BenchmarkPrecompiledIdentity(bench *testing.B) {
t := precompiledTest{
Input: "38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e000000000000000000000000000000000000000000000000000000000000001b38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e789d1dd423d25f0772d2748d60f7e4b81bb14d086eba8e8e8efb6dcff8a4ae02",
Expected: "38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e000000000000000000000000000000000000000000000000000000000000001b38d18acb67d25c8bb9942764b62f18e17054f66a817bd4295423adf9ed98873e789d1dd423d25f0772d2748d60f7e4b81bb14d086eba8e8e8efb6dcff8a4ae02",
Name: "128",
}
benchmarkPrecompiled("04", t, bench)
}
// Tests the sample inputs from the ModExp EIP 198.
func TestPrecompiledModExp(t *testing.T) { testJson("modexp", "05", t) }
func BenchmarkPrecompiledModExp(b *testing.B) { benchJson("modexp", "05", b) }
func TestPrecompiledModExpEip2565(t *testing.T) { testJson("modexp_eip2565", "f5", t) }
func BenchmarkPrecompiledModExpEip2565(b *testing.B) { benchJson("modexp_eip2565", "f5", b) }
// Tests the sample inputs from the elliptic curve addition EIP 213.
func TestPrecompiledBn256Add(t *testing.T) { testJson("bn256Add", "06", t) }
func BenchmarkPrecompiledBn256Add(b *testing.B) { benchJson("bn256Add", "06", b) }
// Tests OOG
func TestPrecompiledModExpOOG(t *testing.T) {
modexpTests, err := loadJson("modexp")
if err != nil {
t.Fatal(err)
}
for _, test := range modexpTests {
testPrecompiledOOG("05", test, t)
}
}
// Tests the sample inputs from the elliptic curve scalar multiplication EIP 213.
func TestPrecompiledBn256ScalarMul(t *testing.T) { testJson("bn256ScalarMul", "07", t) }
func BenchmarkPrecompiledBn256ScalarMul(b *testing.B) { benchJson("bn256ScalarMul", "07", b) }
// Tests the sample inputs from the elliptic curve pairing check EIP 197.
func TestPrecompiledBn256Pairing(t *testing.T) { testJson("bn256Pairing", "08", t) }
func BenchmarkPrecompiledBn256Pairing(b *testing.B) { benchJson("bn256Pairing", "08", b) }
func TestPrecompiledBlake2F(t *testing.T) { testJson("blake2F", "09", t) }
func BenchmarkPrecompiledBlake2F(b *testing.B) { benchJson("blake2F", "09", b) }
func TestPrecompileBlake2FMalformedInput(t *testing.T) {
for _, test := range blake2FMalformedInputTests {
testPrecompiledFailure("09", test, t)
}
}
func TestPrecompiledEcrecover(t *testing.T) { testJson("ecRecover", "01", t) }
func testJson(name, addr string, t *testing.T) {
tests, err := loadJson(name)
if err != nil {
t.Fatal(err)
}
for _, test := range tests {
testPrecompiled(addr, test, t)
}
}
func testJsonFail(name, addr string, t *testing.T) {
tests, err := loadJsonFail(name)
if err != nil {
t.Fatal(err)
}
for _, test := range tests {
testPrecompiledFailure(addr, test, t)
}
}
func benchJson(name, addr string, b *testing.B) {
tests, err := loadJson(name)
if err != nil {
b.Fatal(err)
}
for _, test := range tests {
benchmarkPrecompiled(addr, test, b)
}
}
func TestPrecompiledBLS12381G1Add(t *testing.T) { testJson("blsG1Add", "f0a", t) }
func TestPrecompiledBLS12381G1Mul(t *testing.T) { testJson("blsG1Mul", "f0b", t) }
func TestPrecompiledBLS12381G1MultiExp(t *testing.T) { testJson("blsG1MultiExp", "f0c", t) }
func TestPrecompiledBLS12381G2Add(t *testing.T) { testJson("blsG2Add", "f0d", t) }
func TestPrecompiledBLS12381G2Mul(t *testing.T) { testJson("blsG2Mul", "f0e", t) }
func TestPrecompiledBLS12381G2MultiExp(t *testing.T) { testJson("blsG2MultiExp", "f0f", t) }
func TestPrecompiledBLS12381Pairing(t *testing.T) { testJson("blsPairing", "f10", t) }
func TestPrecompiledBLS12381MapG1(t *testing.T) { testJson("blsMapG1", "f11", t) }
func TestPrecompiledBLS12381MapG2(t *testing.T) { testJson("blsMapG2", "f12", t) }
func TestPrecompiledPointEvaluation(t *testing.T) { testJson("pointEvaluation", "0a", t) }
func BenchmarkPrecompiledPointEvaluation(b *testing.B) { benchJson("pointEvaluation", "0a", b) }
func BenchmarkPrecompiledBLS12381G1Add(b *testing.B) { benchJson("blsG1Add", "f0a", b) }
func BenchmarkPrecompiledBLS12381G1Mul(b *testing.B) { benchJson("blsG1Mul", "f0b", b) }
func BenchmarkPrecompiledBLS12381G1MultiExp(b *testing.B) { benchJson("blsG1MultiExp", "f0c", b) }
func BenchmarkPrecompiledBLS12381G2Add(b *testing.B) { benchJson("blsG2Add", "f0d", b) }
func BenchmarkPrecompiledBLS12381G2Mul(b *testing.B) { benchJson("blsG2Mul", "f0e", b) }
func BenchmarkPrecompiledBLS12381G2MultiExp(b *testing.B) { benchJson("blsG2MultiExp", "f0f", b) }
func BenchmarkPrecompiledBLS12381Pairing(b *testing.B) { benchJson("blsPairing", "f10", b) }
func BenchmarkPrecompiledBLS12381MapG1(b *testing.B) { benchJson("blsMapG1", "f11", b) }
func BenchmarkPrecompiledBLS12381MapG2(b *testing.B) { benchJson("blsMapG2", "f12", b) }
// Failure tests
func TestPrecompiledBLS12381G1AddFail(t *testing.T) { testJsonFail("blsG1Add", "f0a", t) }
func TestPrecompiledBLS12381G1MulFail(t *testing.T) { testJsonFail("blsG1Mul", "f0b", t) }
func TestPrecompiledBLS12381G1MultiExpFail(t *testing.T) { testJsonFail("blsG1MultiExp", "f0c", t) }
func TestPrecompiledBLS12381G2AddFail(t *testing.T) { testJsonFail("blsG2Add", "f0d", t) }
func TestPrecompiledBLS12381G2MulFail(t *testing.T) { testJsonFail("blsG2Mul", "f0e", t) }
func TestPrecompiledBLS12381G2MultiExpFail(t *testing.T) { testJsonFail("blsG2MultiExp", "f0f", t) }
func TestPrecompiledBLS12381PairingFail(t *testing.T) { testJsonFail("blsPairing", "f10", t) }
func TestPrecompiledBLS12381MapG1Fail(t *testing.T) { testJsonFail("blsMapG1", "f11", t) }
func TestPrecompiledBLS12381MapG2Fail(t *testing.T) { testJsonFail("blsMapG2", "f12", t) }
func loadJson(name string) ([]precompiledTest, error) {
data, err := os.ReadFile(fmt.Sprintf("testdata/precompiles/%v.json", name))
if err != nil {
return nil, err
}
var testcases []precompiledTest
err = json.Unmarshal(data, &testcases)
return testcases, err
}
func loadJsonFail(name string) ([]precompiledFailureTest, error) {
data, err := os.ReadFile(fmt.Sprintf("testdata/precompiles/fail-%v.json", name))
if err != nil {
return nil, err
}
var testcases []precompiledFailureTest
err = json.Unmarshal(data, &testcases)
return testcases, err
}
// BenchmarkPrecompiledBLS12381G1MultiExpWorstCase benchmarks the worst case we could find that still fits a gaslimit of 10MGas.
func BenchmarkPrecompiledBLS12381G1MultiExpWorstCase(b *testing.B) {
task := "0000000000000000000000000000000008d8c4a16fb9d8800cce987c0eadbb6b3b005c213d44ecb5adeed713bae79d606041406df26169c35df63cf972c94be1" +
"0000000000000000000000000000000011bc8afe71676e6730702a46ef817060249cd06cd82e6981085012ff6d013aa4470ba3a2c71e13ef653e1e223d1ccfe9" +
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
input := task
for i := 0; i < 4787; i++ {
input = input + task
}
testcase := precompiledTest{
Input: input,
Expected: "0000000000000000000000000000000005a6310ea6f2a598023ae48819afc292b4dfcb40aabad24a0c2cb6c19769465691859eeb2a764342a810c5038d700f18000000000000000000000000000000001268ac944437d15923dc0aec00daa9250252e43e4b35ec7a19d01f0d6cd27f6e139d80dae16ba1c79cc7f57055a93ff5",
Name: "WorstCaseG1",
NoBenchmark: false,
}
benchmarkPrecompiled("f0c", testcase, b)
}
// BenchmarkPrecompiledBLS12381G2MultiExpWorstCase benchmarks the worst case we could find that still fits a gaslimit of 10MGas.
func BenchmarkPrecompiledBLS12381G2MultiExpWorstCase(b *testing.B) {
task := "000000000000000000000000000000000d4f09acd5f362e0a516d4c13c5e2f504d9bd49fdfb6d8b7a7ab35a02c391c8112b03270d5d9eefe9b659dd27601d18f" +
"000000000000000000000000000000000fd489cb75945f3b5ebb1c0e326d59602934c8f78fe9294a8877e7aeb95de5addde0cb7ab53674df8b2cfbb036b30b99" +
"00000000000000000000000000000000055dbc4eca768714e098bbe9c71cf54b40f51c26e95808ee79225a87fb6fa1415178db47f02d856fea56a752d185f86b" +
"000000000000000000000000000000001239b7640f416eb6e921fe47f7501d504fadc190d9cf4e89ae2b717276739a2f4ee9f637c35e23c480df029fd8d247c7" +
"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
input := task
for i := 0; i < 1040; i++ {
input = input + task
}
testcase := precompiledTest{
Input: input,
Expected: "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",
Name: "WorstCaseG2",
NoBenchmark: false,
}
benchmarkPrecompiled("f0f", testcase, b)
}
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