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// Copyright 2018 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 enode
import (
"bytes"
"crypto/ecdsa"
"encoding/hex"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/p2p/enr"
"github.com/ethereum/go-ethereum/rlp"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
var (
privkey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
pubkey = &privkey.PublicKey
)
func TestEmptyNodeID(t *testing.T) {
var r enr.Record
if addr := ValidSchemes.NodeAddr(&r); addr != nil {
t.Errorf("wrong address on empty record: got %v, want %v", addr, nil)
}
require.NoError(t, SignV4(&r, privkey))
expected := "a448f24c6d18e575453db13171562b71999873db5b286df957af199ec94617f7"
assert.Equal(t, expected, hex.EncodeToString(ValidSchemes.NodeAddr(&r)))
}
// Checks that failure to sign leaves the record unmodified.
func TestSignError(t *testing.T) {
invalidKey := &ecdsa.PrivateKey{D: new(big.Int), PublicKey: *pubkey}
var r enr.Record
emptyEnc, _ := rlp.EncodeToBytes(&r)
if err := SignV4(&r, invalidKey); err == nil {
t.Fatal("expected error from SignV4")
}
newEnc, _ := rlp.EncodeToBytes(&r)
if !bytes.Equal(newEnc, emptyEnc) {
t.Fatal("record modified even though signing failed")
}
}
// TestGetSetSecp256k1 tests encoding/decoding and setting/getting of the Secp256k1 key.
func TestGetSetSecp256k1(t *testing.T) {
var r enr.Record
if err := SignV4(&r, privkey); err != nil {
t.Fatal(err)
}
var pk Secp256k1
require.NoError(t, r.Load(&pk))
assert.EqualValues(t, pubkey, &pk)
}
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