repo_description: A BNB Smart Chain client based on the go-ethereum fork
repo_topics: blockchain bnb ethereum
code: // 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)
  		}
  	}
  }
  