1 files changed, 74 insertions, 0 deletions
diff --git a/p2p/enode/idscheme_test.go b/p2p/enode/idscheme_test.go
new file mode 100644
index 000000000..0910e6e83
--- /dev/null
+++ b/p2p/enode/idscheme_test.go
@@ -0,0 +1,74 @@
+// 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)
+}