github.com/sberex/go-sberex@v1.8.2-0.20181113200658-ed96ac38f7d7/eth/api_test.go (about)

     1  // This file is part of the go-sberex library. The go-sberex library is 
     2  // free software: you can redistribute it and/or modify it under the terms 
     3  // of the GNU Lesser General Public License as published by the Free 
     4  // Software Foundation, either version 3 of the License, or (at your option)
     5  // any later version.
     6  //
     7  // The go-sberex library is distributed in the hope that it will be useful, 
     8  // but WITHOUT ANY WARRANTY; without even the implied warranty of
     9  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 
    10  // General Public License <http://www.gnu.org/licenses/> for more details.
    11  
    12  package eth
    13  
    14  import (
    15  	"reflect"
    16  	"testing"
    17  
    18  	"github.com/davecgh/go-spew/spew"
    19  	"github.com/Sberex/go-sberex/common"
    20  	"github.com/Sberex/go-sberex/core/state"
    21  	"github.com/Sberex/go-sberex/ethdb"
    22  )
    23  
    24  var dumper = spew.ConfigState{Indent: "    "}
    25  
    26  func TestStorageRangeAt(t *testing.T) {
    27  	// Create a state where account 0x010000... has a few storage entries.
    28  	var (
    29  		db, _    = ethdb.NewMemDatabase()
    30  		state, _ = state.New(common.Hash{}, state.NewDatabase(db))
    31  		addr     = common.Address{0x01}
    32  		keys     = []common.Hash{ // hashes of Keys of storage
    33  			common.HexToHash("340dd630ad21bf010b4e676dbfa9ba9a02175262d1fa356232cfde6cb5b47ef2"),
    34  			common.HexToHash("426fcb404ab2d5d8e61a3d918108006bbb0a9be65e92235bb10eefbdb6dcd053"),
    35  			common.HexToHash("48078cfed56339ea54962e72c37c7f588fc4f8e5bc173827ba75cb10a63a96a5"),
    36  			common.HexToHash("5723d2c3a83af9b735e3b7f21531e5623d183a9095a56604ead41f3582fdfb75"),
    37  		}
    38  		storage = storageMap{
    39  			keys[0]: {Key: &common.Hash{0x02}, Value: common.Hash{0x01}},
    40  			keys[1]: {Key: &common.Hash{0x04}, Value: common.Hash{0x02}},
    41  			keys[2]: {Key: &common.Hash{0x01}, Value: common.Hash{0x03}},
    42  			keys[3]: {Key: &common.Hash{0x03}, Value: common.Hash{0x04}},
    43  		}
    44  	)
    45  	for _, entry := range storage {
    46  		state.SetState(addr, *entry.Key, entry.Value)
    47  	}
    48  
    49  	// Check a few combinations of limit and start/end.
    50  	tests := []struct {
    51  		start []byte
    52  		limit int
    53  		want  StorageRangeResult
    54  	}{
    55  		{
    56  			start: []byte{}, limit: 0,
    57  			want: StorageRangeResult{storageMap{}, &keys[0]},
    58  		},
    59  		{
    60  			start: []byte{}, limit: 100,
    61  			want: StorageRangeResult{storage, nil},
    62  		},
    63  		{
    64  			start: []byte{}, limit: 2,
    65  			want: StorageRangeResult{storageMap{keys[0]: storage[keys[0]], keys[1]: storage[keys[1]]}, &keys[2]},
    66  		},
    67  		{
    68  			start: []byte{0x00}, limit: 4,
    69  			want: StorageRangeResult{storage, nil},
    70  		},
    71  		{
    72  			start: []byte{0x40}, limit: 2,
    73  			want: StorageRangeResult{storageMap{keys[1]: storage[keys[1]], keys[2]: storage[keys[2]]}, &keys[3]},
    74  		},
    75  	}
    76  	for _, test := range tests {
    77  		result, err := storageRangeAt(state.StorageTrie(addr), test.start, test.limit)
    78  		if err != nil {
    79  			t.Error(err)
    80  		}
    81  		if !reflect.DeepEqual(result, test.want) {
    82  			t.Fatalf("wrong result for range 0x%x.., limit %d:\ngot %s\nwant %s",
    83  				test.start, test.limit, dumper.Sdump(result), dumper.Sdump(&test.want))
    84  		}
    85  	}
    86  }