Official Go implementation of the Ethereum protocol
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go-ethereum/cmd/rlpdump/rlpdump_test.go

84 lines
2.2 KiB

// Copyright 2021 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"bytes"
"fmt"
"strings"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
)
func TestRoundtrip(t *testing.T) {
t.Parallel()
for i, want := range []string{
"0xf880806482520894d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0d0a1010000000000000000000000000000000000000000000000000000000000000001801ba0c16787a8e25e941d67691954642876c08f00996163ae7dfadbbfd6cd436f549da06180e5626cae31590f40641fe8f63734316c4bfeb4cdfab6714198c1044d2e28",
"0xd5c0d3cb84746573742a2a808213378667617a6f6e6b",
"0xc780c0c1c0825208",
} {
var out strings.Builder
in := newInStream(bytes.NewReader(common.FromHex(want)), 0)
err := rlpToText(in, &out)
if err != nil {
t.Fatal(err)
}
text := out.String()
rlpBytes, err := textToRlp(strings.NewReader(text))
if err != nil {
t.Errorf("test %d: error %v", i, err)
continue
}
have := fmt.Sprintf("%#x", rlpBytes)
if have != want {
t.Errorf("test %d: have\n%v\nwant:\n%v\n", i, have, want)
}
}
}
func TestTextToRlp(t *testing.T) {
t.Parallel()
type tc struct {
text string
want string
}
cases := []tc{
{
text: `[
"",
[],
[
[],
],
5208,
]`,
want: "0xc780c0c1c0825208",
},
}
for i, tc := range cases {
have, err := textToRlp(strings.NewReader(tc.text))
if err != nil {
t.Errorf("test %d: error %v", i, err)
continue
}
if hexutil.Encode(have) != tc.want {
t.Errorf("test %d:\nhave %v\nwant %v", i, hexutil.Encode(have), tc.want)
}
}
}