plugeth/trie/node_test.go

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// Copyright 2016 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 trie
import (
"bytes"
"testing"
"github.com/ethereum/go-ethereum/rlp"
)
func newTestFullNode(v []byte) []interface{} {
fullNodeData := []interface{}{}
for i := 0; i < 16; i++ {
k := bytes.Repeat([]byte{byte(i + 1)}, 32)
fullNodeData = append(fullNodeData, k)
}
fullNodeData = append(fullNodeData, v)
return fullNodeData
}
func TestDecodeNestedNode(t *testing.T) {
fullNodeData := newTestFullNode([]byte("fullnode"))
data := [][]byte{}
for i := 0; i < 16; i++ {
data = append(data, nil)
}
data = append(data, []byte("subnode"))
fullNodeData[15] = data
buf := bytes.NewBuffer([]byte{})
rlp.Encode(buf, fullNodeData)
if _, err := decodeNode([]byte("testdecode"), buf.Bytes()); err != nil {
t.Fatalf("decode nested full node err: %v", err)
}
}
func TestDecodeFullNodeWrongSizeChild(t *testing.T) {
fullNodeData := newTestFullNode([]byte("wrongsizechild"))
fullNodeData[0] = []byte("00")
buf := bytes.NewBuffer([]byte{})
rlp.Encode(buf, fullNodeData)
_, err := decodeNode([]byte("testdecode"), buf.Bytes())
if _, ok := err.(*decodeError); !ok {
t.Fatalf("decodeNode returned wrong err: %v", err)
}
}
func TestDecodeFullNodeWrongNestedFullNode(t *testing.T) {
fullNodeData := newTestFullNode([]byte("fullnode"))
data := [][]byte{}
for i := 0; i < 16; i++ {
data = append(data, []byte("123456"))
}
data = append(data, []byte("subnode"))
fullNodeData[15] = data
buf := bytes.NewBuffer([]byte{})
rlp.Encode(buf, fullNodeData)
_, err := decodeNode([]byte("testdecode"), buf.Bytes())
if _, ok := err.(*decodeError); !ok {
t.Fatalf("decodeNode returned wrong err: %v", err)
}
}
func TestDecodeFullNode(t *testing.T) {
fullNodeData := newTestFullNode([]byte("decodefullnode"))
buf := bytes.NewBuffer([]byte{})
rlp.Encode(buf, fullNodeData)
_, err := decodeNode([]byte("testdecode"), buf.Bytes())
if err != nil {
t.Fatalf("decode full node err: %v", err)
}
}