go-ethereum/eth/tracers/native/call_flat_test.go

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// Copyright 2024 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 native_test
import (
"errors"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/tracing"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/eth/tracers"
"github.com/ethereum/go-ethereum/params"
"github.com/stretchr/testify/require"
)
func TestCallFlatStop(t *testing.T) {
tracer, err := tracers.DefaultDirectory.New("flatCallTracer", &tracers.Context{}, nil)
require.NoError(t, err)
// this error should be returned by GetResult
stopError := errors.New("stop error")
// simulate a transaction
tx := types.NewTx(&types.LegacyTx{
Nonce: 0,
To: &common.Address{},
Value: big.NewInt(0),
Gas: 0,
GasPrice: big.NewInt(0),
Data: nil,
})
tracer.OnTxStart(&tracing.VMContext{
ChainConfig: params.MainnetChainConfig,
}, tx, common.Address{})
tracer.OnEnter(0, byte(vm.CALL), common.Address{}, common.Address{}, nil, 0, big.NewInt(0))
// stop before the transaction is finished
tracer.Stop(stopError)
tracer.OnTxEnd(&types.Receipt{GasUsed: 0}, nil)
// check that the error is returned by GetResult
_, tracerError := tracer.GetResult()
require.Equal(t, stopError, tracerError)
}