github.com/klaytn/klaytn@v1.12.1/node/cn/api_test.go (about)

     1  // Modifications Copyright 2018 The klaytn Authors
     2  // Copyright 2017 The go-ethereum Authors
     3  // This file is part of go-ethereum.
     4  //
     5  // The go-ethereum library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The go-ethereum library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  // This file is derived from eth/api_test.go (2018/06/04).
    19  // Modified and improved for the klaytn development.
    20  package cn
    21  
    22  import (
    23  	"reflect"
    24  	"testing"
    25  
    26  	"github.com/davecgh/go-spew/spew"
    27  	"github.com/klaytn/klaytn/blockchain/state"
    28  	"github.com/klaytn/klaytn/common"
    29  	"github.com/klaytn/klaytn/storage/database"
    30  )
    31  
    32  var dumper = spew.ConfigState{Indent: "    "}
    33  
    34  func TestStorageRangeAt(t *testing.T) {
    35  	// Create a state where account 0x010000... has a few storage entries.
    36  	var (
    37  		state, _ = state.New(common.Hash{}, state.NewDatabase(database.NewMemoryDBManager()), nil, nil)
    38  		addr     = common.Address{0x01}
    39  		keys     = []common.Hash{ // hashes of Keys of storage
    40  			common.HexToHash("340dd630ad21bf010b4e676dbfa9ba9a02175262d1fa356232cfde6cb5b47ef2"),
    41  			common.HexToHash("426fcb404ab2d5d8e61a3d918108006bbb0a9be65e92235bb10eefbdb6dcd053"),
    42  			common.HexToHash("48078cfed56339ea54962e72c37c7f588fc4f8e5bc173827ba75cb10a63a96a5"),
    43  			common.HexToHash("5723d2c3a83af9b735e3b7f21531e5623d183a9095a56604ead41f3582fdfb75"),
    44  		}
    45  		storage = storageMap{
    46  			keys[0]: {Key: &common.Hash{0x02}, Value: common.Hash{0x01}},
    47  			keys[1]: {Key: &common.Hash{0x04}, Value: common.Hash{0x02}},
    48  			keys[2]: {Key: &common.Hash{0x01}, Value: common.Hash{0x03}},
    49  			keys[3]: {Key: &common.Hash{0x03}, Value: common.Hash{0x04}},
    50  		}
    51  	)
    52  	for _, entry := range storage {
    53  		state.SetState(addr, *entry.Key, entry.Value)
    54  	}
    55  
    56  	// Check a few combinations of limit and start/end.
    57  	tests := []struct {
    58  		start []byte
    59  		limit int
    60  		want  StorageRangeResult
    61  	}{
    62  		{
    63  			start: []byte{}, limit: 0,
    64  			want: StorageRangeResult{storageMap{}, &keys[0]},
    65  		},
    66  		{
    67  			start: []byte{}, limit: 100,
    68  			want: StorageRangeResult{storage, nil},
    69  		},
    70  		{
    71  			start: []byte{}, limit: 2,
    72  			want: StorageRangeResult{storageMap{keys[0]: storage[keys[0]], keys[1]: storage[keys[1]]}, &keys[2]},
    73  		},
    74  		{
    75  			start: []byte{0x00}, limit: 4,
    76  			want: StorageRangeResult{storage, nil},
    77  		},
    78  		{
    79  			start: []byte{0x40}, limit: 2,
    80  			want: StorageRangeResult{storageMap{keys[1]: storage[keys[1]], keys[2]: storage[keys[2]]}, &keys[3]},
    81  		},
    82  	}
    83  	for _, test := range tests {
    84  		result, err := storageRangeAt(state.StorageTrie(addr), test.start, test.limit)
    85  		if err != nil {
    86  			t.Error(err)
    87  		}
    88  		if !reflect.DeepEqual(result, test.want) {
    89  			t.Fatalf("wrong result for range 0x%x.., limit %d:\ngot %s\nwant %s",
    90  				test.start, test.limit, dumper.Sdump(result), dumper.Sdump(&test.want))
    91  		}
    92  	}
    93  }