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- // Copyright 2020 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library 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 Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package rawdb
- import (
- "bytes"
- "testing"
- "github.com/ethereum/go-ethereum/ethdb"
- )
- func TestTableDatabase(t *testing.T) { testTableDatabase(t, "prefix") }
- func TestEmptyPrefixTableDatabase(t *testing.T) { testTableDatabase(t, "") }
- type testReplayer struct {
- puts [][]byte
- dels [][]byte
- }
- func (r *testReplayer) Put(key []byte, value []byte) error {
- r.puts = append(r.puts, key)
- return nil
- }
- func (r *testReplayer) Delete(key []byte) error {
- r.dels = append(r.dels, key)
- return nil
- }
- func testTableDatabase(t *testing.T, prefix string) {
- db := NewTable(NewMemoryDatabase(), prefix)
- var entries = []struct {
- key []byte
- value []byte
- }{
- {[]byte{0x01, 0x02}, []byte{0x0a, 0x0b}},
- {[]byte{0x03, 0x04}, []byte{0x0c, 0x0d}},
- {[]byte{0x05, 0x06}, []byte{0x0e, 0x0f}},
- {[]byte{0xff, 0xff, 0x01}, []byte{0x1a, 0x1b}},
- {[]byte{0xff, 0xff, 0x02}, []byte{0x1c, 0x1d}},
- {[]byte{0xff, 0xff, 0x03}, []byte{0x1e, 0x1f}},
- }
- // Test Put/Get operation
- for _, entry := range entries {
- db.Put(entry.key, entry.value)
- }
- for _, entry := range entries {
- got, err := db.Get(entry.key)
- if err != nil {
- t.Fatalf("Failed to get value: %v", err)
- }
- if !bytes.Equal(got, entry.value) {
- t.Fatalf("Value mismatch: want=%v, got=%v", entry.value, got)
- }
- }
- // Test batch operation
- db = NewTable(NewMemoryDatabase(), prefix)
- batch := db.NewBatch()
- for _, entry := range entries {
- batch.Put(entry.key, entry.value)
- }
- batch.Write()
- for _, entry := range entries {
- got, err := db.Get(entry.key)
- if err != nil {
- t.Fatalf("Failed to get value: %v", err)
- }
- if !bytes.Equal(got, entry.value) {
- t.Fatalf("Value mismatch: want=%v, got=%v", entry.value, got)
- }
- }
- // Test batch replayer
- r := &testReplayer{}
- batch.Replay(r)
- for index, entry := range entries {
- got := r.puts[index]
- if !bytes.Equal(got, entry.key) {
- t.Fatalf("Key mismatch: want=%v, got=%v", entry.key, got)
- }
- }
- check := func(iter ethdb.Iterator, expCount, index int) {
- count := 0
- for iter.Next() {
- key, value := iter.Key(), iter.Value()
- if !bytes.Equal(key, entries[index].key) {
- t.Fatalf("Key mismatch: want=%v, got=%v", entries[index].key, key)
- }
- if !bytes.Equal(value, entries[index].value) {
- t.Fatalf("Value mismatch: want=%v, got=%v", entries[index].value, value)
- }
- index += 1
- count++
- }
- if count != expCount {
- t.Fatalf("Wrong number of elems, exp %d got %d", expCount, count)
- }
- iter.Release()
- }
- // Test iterators
- check(db.NewIterator(nil, nil), 6, 0)
- // Test iterators with prefix
- check(db.NewIterator([]byte{0xff, 0xff}, nil), 3, 3)
- // Test iterators with start point
- check(db.NewIterator(nil, []byte{0xff, 0xff, 0x02}), 2, 4)
- // Test iterators with prefix and start point
- check(db.NewIterator([]byte{0xee}, nil), 0, 0)
- check(db.NewIterator(nil, []byte{0x00}), 6, 0)
- }
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