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-rw-r--r--swarm/shed/index_test.go426
1 files changed, 426 insertions, 0 deletions
diff --git a/swarm/shed/index_test.go b/swarm/shed/index_test.go
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+// Copyright 2018 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 shed
+
+import (
+ "bytes"
+ "encoding/binary"
+ "fmt"
+ "sort"
+ "testing"
+ "time"
+
+ "github.com/syndtr/goleveldb/leveldb"
+)
+
+// Index functions for the index that is used in tests in this file.
+var retrievalIndexFuncs = IndexFuncs{
+ EncodeKey: func(fields IndexItem) (key []byte, err error) {
+ return fields.Address, nil
+ },
+ DecodeKey: func(key []byte) (e IndexItem, err error) {
+ e.Address = key
+ return e, nil
+ },
+ EncodeValue: func(fields IndexItem) (value []byte, err error) {
+ b := make([]byte, 8)
+ binary.BigEndian.PutUint64(b, uint64(fields.StoreTimestamp))
+ value = append(b, fields.Data...)
+ return value, nil
+ },
+ DecodeValue: func(value []byte) (e IndexItem, err error) {
+ e.StoreTimestamp = int64(binary.BigEndian.Uint64(value[:8]))
+ e.Data = value[8:]
+ return e, nil
+ },
+}
+
+// TestIndex validates put, get and delete functions of the Index implementation.
+func TestIndex(t *testing.T) {
+ db, cleanupFunc := newTestDB(t)
+ defer cleanupFunc()
+
+ index, err := db.NewIndex("retrieval", retrievalIndexFuncs)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ t.Run("put", func(t *testing.T) {
+ want := IndexItem{
+ Address: []byte("put-hash"),
+ Data: []byte("DATA"),
+ StoreTimestamp: time.Now().UTC().UnixNano(),
+ }
+
+ err := index.Put(want)
+ if err != nil {
+ t.Fatal(err)
+ }
+ got, err := index.Get(IndexItem{
+ Address: want.Address,
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkIndexItem(t, got, want)
+
+ t.Run("overwrite", func(t *testing.T) {
+ want := IndexItem{
+ Address: []byte("put-hash"),
+ Data: []byte("New DATA"),
+ StoreTimestamp: time.Now().UTC().UnixNano(),
+ }
+
+ err = index.Put(want)
+ if err != nil {
+ t.Fatal(err)
+ }
+ got, err := index.Get(IndexItem{
+ Address: want.Address,
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkIndexItem(t, got, want)
+ })
+ })
+
+ t.Run("put in batch", func(t *testing.T) {
+ want := IndexItem{
+ Address: []byte("put-in-batch-hash"),
+ Data: []byte("DATA"),
+ StoreTimestamp: time.Now().UTC().UnixNano(),
+ }
+
+ batch := new(leveldb.Batch)
+ index.PutInBatch(batch, want)
+ err := db.WriteBatch(batch)
+ if err != nil {
+ t.Fatal(err)
+ }
+ got, err := index.Get(IndexItem{
+ Address: want.Address,
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkIndexItem(t, got, want)
+
+ t.Run("overwrite", func(t *testing.T) {
+ want := IndexItem{
+ Address: []byte("put-in-batch-hash"),
+ Data: []byte("New DATA"),
+ StoreTimestamp: time.Now().UTC().UnixNano(),
+ }
+
+ batch := new(leveldb.Batch)
+ index.PutInBatch(batch, want)
+ db.WriteBatch(batch)
+ if err != nil {
+ t.Fatal(err)
+ }
+ got, err := index.Get(IndexItem{
+ Address: want.Address,
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkIndexItem(t, got, want)
+ })
+ })
+
+ t.Run("put in batch twice", func(t *testing.T) {
+ // ensure that the last item of items with the same db keys
+ // is actually saved
+ batch := new(leveldb.Batch)
+ address := []byte("put-in-batch-twice-hash")
+
+ // put the first item
+ index.PutInBatch(batch, IndexItem{
+ Address: address,
+ Data: []byte("DATA"),
+ StoreTimestamp: time.Now().UTC().UnixNano(),
+ })
+
+ want := IndexItem{
+ Address: address,
+ Data: []byte("New DATA"),
+ StoreTimestamp: time.Now().UTC().UnixNano(),
+ }
+ // then put the item that will produce the same key
+ // but different value in the database
+ index.PutInBatch(batch, want)
+ db.WriteBatch(batch)
+ if err != nil {
+ t.Fatal(err)
+ }
+ got, err := index.Get(IndexItem{
+ Address: address,
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkIndexItem(t, got, want)
+ })
+
+ t.Run("delete", func(t *testing.T) {
+ want := IndexItem{
+ Address: []byte("delete-hash"),
+ Data: []byte("DATA"),
+ StoreTimestamp: time.Now().UTC().UnixNano(),
+ }
+
+ err := index.Put(want)
+ if err != nil {
+ t.Fatal(err)
+ }
+ got, err := index.Get(IndexItem{
+ Address: want.Address,
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkIndexItem(t, got, want)
+
+ err = index.Delete(IndexItem{
+ Address: want.Address,
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ wantErr := leveldb.ErrNotFound
+ got, err = index.Get(IndexItem{
+ Address: want.Address,
+ })
+ if err != wantErr {
+ t.Fatalf("got error %v, want %v", err, wantErr)
+ }
+ })
+
+ t.Run("delete in batch", func(t *testing.T) {
+ want := IndexItem{
+ Address: []byte("delete-in-batch-hash"),
+ Data: []byte("DATA"),
+ StoreTimestamp: time.Now().UTC().UnixNano(),
+ }
+
+ err := index.Put(want)
+ if err != nil {
+ t.Fatal(err)
+ }
+ got, err := index.Get(IndexItem{
+ Address: want.Address,
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ checkIndexItem(t, got, want)
+
+ batch := new(leveldb.Batch)
+ index.DeleteInBatch(batch, IndexItem{
+ Address: want.Address,
+ })
+ err = db.WriteBatch(batch)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ wantErr := leveldb.ErrNotFound
+ got, err = index.Get(IndexItem{
+ Address: want.Address,
+ })
+ if err != wantErr {
+ t.Fatalf("got error %v, want %v", err, wantErr)
+ }
+ })
+}
+
+// TestIndex_iterate validates index iterator functions for correctness.
+func TestIndex_iterate(t *testing.T) {
+ db, cleanupFunc := newTestDB(t)
+ defer cleanupFunc()
+
+ index, err := db.NewIndex("retrieval", retrievalIndexFuncs)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ items := []IndexItem{
+ {
+ Address: []byte("iterate-hash-01"),
+ Data: []byte("data80"),
+ },
+ {
+ Address: []byte("iterate-hash-03"),
+ Data: []byte("data22"),
+ },
+ {
+ Address: []byte("iterate-hash-05"),
+ Data: []byte("data41"),
+ },
+ {
+ Address: []byte("iterate-hash-02"),
+ Data: []byte("data84"),
+ },
+ {
+ Address: []byte("iterate-hash-06"),
+ Data: []byte("data1"),
+ },
+ }
+ batch := new(leveldb.Batch)
+ for _, i := range items {
+ index.PutInBatch(batch, i)
+ }
+ err = db.WriteBatch(batch)
+ if err != nil {
+ t.Fatal(err)
+ }
+ item04 := IndexItem{
+ Address: []byte("iterate-hash-04"),
+ Data: []byte("data0"),
+ }
+ err = index.Put(item04)
+ if err != nil {
+ t.Fatal(err)
+ }
+ items = append(items, item04)
+
+ sort.SliceStable(items, func(i, j int) bool {
+ return bytes.Compare(items[i].Address, items[j].Address) < 0
+ })
+
+ t.Run("all", func(t *testing.T) {
+ var i int
+ err := index.IterateAll(func(item IndexItem) (stop bool, err error) {
+ if i > len(items)-1 {
+ return true, fmt.Errorf("got unexpected index item: %#v", item)
+ }
+ want := items[i]
+ checkIndexItem(t, item, want)
+ i++
+ return false, nil
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ })
+
+ t.Run("from", func(t *testing.T) {
+ startIndex := 2
+ i := startIndex
+ err := index.IterateFrom(items[startIndex], func(item IndexItem) (stop bool, err error) {
+ if i > len(items)-1 {
+ return true, fmt.Errorf("got unexpected index item: %#v", item)
+ }
+ want := items[i]
+ checkIndexItem(t, item, want)
+ i++
+ return false, nil
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ })
+
+ t.Run("stop", func(t *testing.T) {
+ var i int
+ stopIndex := 3
+ var count int
+ err := index.IterateAll(func(item IndexItem) (stop bool, err error) {
+ if i > len(items)-1 {
+ return true, fmt.Errorf("got unexpected index item: %#v", item)
+ }
+ want := items[i]
+ checkIndexItem(t, item, want)
+ count++
+ if i == stopIndex {
+ return true, nil
+ }
+ i++
+ return false, nil
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ wantItemsCount := stopIndex + 1
+ if count != wantItemsCount {
+ t.Errorf("got %v items, expected %v", count, wantItemsCount)
+ }
+ })
+
+ t.Run("no overflow", func(t *testing.T) {
+ secondIndex, err := db.NewIndex("second-index", retrievalIndexFuncs)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ secondIndexItem := IndexItem{
+ Address: []byte("iterate-hash-10"),
+ Data: []byte("data-second"),
+ }
+ err = secondIndex.Put(secondIndexItem)
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ var i int
+ err = index.IterateAll(func(item IndexItem) (stop bool, err error) {
+ if i > len(items)-1 {
+ return true, fmt.Errorf("got unexpected index item: %#v", item)
+ }
+ want := items[i]
+ checkIndexItem(t, item, want)
+ i++
+ return false, nil
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ i = 0
+ err = secondIndex.IterateAll(func(item IndexItem) (stop bool, err error) {
+ if i > 1 {
+ return true, fmt.Errorf("got unexpected index item: %#v", item)
+ }
+ checkIndexItem(t, item, secondIndexItem)
+ i++
+ return false, nil
+ })
+ if err != nil {
+ t.Fatal(err)
+ }
+ })
+}
+
+// checkIndexItem is a test helper function that compares if two Index items are the same.
+func checkIndexItem(t *testing.T, got, want IndexItem) {
+ t.Helper()
+
+ if !bytes.Equal(got.Address, want.Address) {
+ t.Errorf("got hash %q, expected %q", string(got.Address), string(want.Address))
+ }
+ if !bytes.Equal(got.Data, want.Data) {
+ t.Errorf("got data %q, expected %q", string(got.Data), string(want.Data))
+ }
+ if got.StoreTimestamp != want.StoreTimestamp {
+ t.Errorf("got store timestamp %v, expected %v", got.StoreTimestamp, want.StoreTimestamp)
+ }
+ if got.AccessTimestamp != want.AccessTimestamp {
+ t.Errorf("got access timestamp %v, expected %v", got.AccessTimestamp, want.AccessTimestamp)
+ }
+}
generated by cgit (git 2.34.1) at 2024-10-20 13:35:18 +0800