92 lines
3.1 KiB
Go
92 lines
3.1 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package eth
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import (
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"reflect"
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"testing"
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"github.com/davecgh/go-spew/spew"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/ethdb"
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)
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var dumper = spew.ConfigState{Indent: " "}
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func TestStorageRangeAt(t *testing.T) {
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// Create a state where account 0x010000... has a few storage entries.
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var (
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db, _ = ethdb.NewMemDatabase()
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state, _ = state.New(common.Hash{}, state.NewDatabase(db))
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addr = common.Address{0x01}
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keys = []common.Hash{ // hashes of Keys of storage
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common.HexToHash("340dd630ad21bf010b4e676dbfa9ba9a02175262d1fa356232cfde6cb5b47ef2"),
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common.HexToHash("426fcb404ab2d5d8e61a3d918108006bbb0a9be65e92235bb10eefbdb6dcd053"),
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common.HexToHash("48078cfed56339ea54962e72c37c7f588fc4f8e5bc173827ba75cb10a63a96a5"),
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common.HexToHash("5723d2c3a83af9b735e3b7f21531e5623d183a9095a56604ead41f3582fdfb75"),
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}
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storage = storageMap{
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keys[0]: {Key: &common.Hash{0x02}, Value: common.Hash{0x01}},
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keys[1]: {Key: &common.Hash{0x04}, Value: common.Hash{0x02}},
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keys[2]: {Key: &common.Hash{0x01}, Value: common.Hash{0x03}},
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keys[3]: {Key: &common.Hash{0x03}, Value: common.Hash{0x04}},
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}
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)
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for _, entry := range storage {
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state.SetState(addr, *entry.Key, entry.Value)
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}
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// Check a few combinations of limit and start/end.
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tests := []struct {
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start []byte
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limit int
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want StorageRangeResult
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}{
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{
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start: []byte{}, limit: 0,
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want: StorageRangeResult{storageMap{}, &keys[0]},
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},
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{
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start: []byte{}, limit: 100,
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want: StorageRangeResult{storage, nil},
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},
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{
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start: []byte{}, limit: 2,
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want: StorageRangeResult{storageMap{keys[0]: storage[keys[0]], keys[1]: storage[keys[1]]}, &keys[2]},
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},
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{
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start: []byte{0x00}, limit: 4,
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want: StorageRangeResult{storage, nil},
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},
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{
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start: []byte{0x40}, limit: 2,
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want: StorageRangeResult{storageMap{keys[1]: storage[keys[1]], keys[2]: storage[keys[2]]}, &keys[3]},
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},
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}
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for _, test := range tests {
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result, err := storageRangeAt(state.StorageTrie(addr), test.start, test.limit)
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if err != nil {
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t.Error(err)
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}
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if !reflect.DeepEqual(result, test.want) {
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t.Fatalf("wrong result for range 0x%x.., limit %d:\ngot %s\nwant %s",
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test.start, test.limit, dumper.Sdump(result), dumper.Sdump(&test.want))
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}
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}
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}
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