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// Copyright 2016 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 storage
import (
"bytes"
"context"
"io"
"io/ioutil"
"os"
"testing"
"github.com/ethereum/go-ethereum/swarm/testutil"
)
const testDataSize = 0x0001000
func TestFileStorerandom(t *testing.T) {
testFileStoreRandom(false, t)
testFileStoreRandom(true, t)
}
func testFileStoreRandom(toEncrypt bool, t *testing.T) {
tdb, cleanup, err := newTestDbStore(false, false)
defer cleanup()
if err != nil {
t.Fatalf("init dbStore failed: %v", err)
}
db := tdb.LDBStore
db.setCapacity(50000)
memStore := NewMemStore(NewDefaultStoreParams(), db)
localStore := &LocalStore{
memStore: memStore,
DbStore: db,
}
fileStore := NewFileStore(localStore, NewFileStoreParams())
defer os.RemoveAll("/tmp/bzz")
slice := testutil.RandomBytes(1, testDataSize)
ctx := context.TODO()
key, wait, err := fileStore.Store(ctx, bytes.NewReader(slice), testDataSize, toEncrypt)
if err != nil {
t.Fatalf("Store error: %v", err)
}
err = wait(ctx)
if err != nil {
t.Fatalf("Store waitt error: %v", err.Error())
}
resultReader, isEncrypted := fileStore.Retrieve(context.TODO(), key)
if isEncrypted != toEncrypt {
t.Fatalf("isEncrypted expected %v got %v", toEncrypt, isEncrypted)
}
resultSlice := make([]byte, testDataSize)
n, err := resultReader.ReadAt(resultSlice, 0)
if err != io.EOF {
t.Fatalf("Retrieve error: %v", err)
}
if n != testDataSize {
t.Fatalf("Slice size error got %d, expected %d.", n, testDataSize)
}
if !bytes.Equal(slice, resultSlice) {
t.Fatalf("Comparison error.")
}
ioutil.WriteFile("/tmp/slice.bzz.16M", slice, 0666)
ioutil.WriteFile("/tmp/result.bzz.16M", resultSlice, 0666)
localStore.memStore = NewMemStore(NewDefaultStoreParams(), db)
resultReader, isEncrypted = fileStore.Retrieve(context.TODO(), key)
if isEncrypted != toEncrypt {
t.Fatalf("isEncrypted expected %v got %v", toEncrypt, isEncrypted)
}
for i := range resultSlice {
resultSlice[i] = 0
}
n, err = resultReader.ReadAt(resultSlice, 0)
if err != io.EOF {
t.Fatalf("Retrieve error after removing memStore: %v", err)
}
if n != len(slice) {
t.Fatalf("Slice size error after removing memStore got %d, expected %d.", n, len(slice))
}
if !bytes.Equal(slice, resultSlice) {
t.Fatalf("Comparison error after removing memStore.")
}
}
func TestFileStoreCapacity(t *testing.T) {
testFileStoreCapacity(false, t)
testFileStoreCapacity(true, t)
}
func testFileStoreCapacity(toEncrypt bool, t *testing.T) {
tdb, cleanup, err := newTestDbStore(false, false)
defer cleanup()
if err != nil {
t.Fatalf("init dbStore failed: %v", err)
}
db := tdb.LDBStore
memStore := NewMemStore(NewDefaultStoreParams(), db)
localStore := &LocalStore{
memStore: memStore,
DbStore: db,
}
fileStore := NewFileStore(localStore, NewFileStoreParams())
slice := testutil.RandomBytes(1, testDataSize)
ctx := context.TODO()
key, wait, err := fileStore.Store(ctx, bytes.NewReader(slice), testDataSize, toEncrypt)
if err != nil {
t.Errorf("Store error: %v", err)
}
err = wait(ctx)
if err != nil {
t.Fatalf("Store error: %v", err)
}
resultReader, isEncrypted := fileStore.Retrieve(context.TODO(), key)
if isEncrypted != toEncrypt {
t.Fatalf("isEncrypted expected %v got %v", toEncrypt, isEncrypted)
}
resultSlice := make([]byte, len(slice))
n, err := resultReader.ReadAt(resultSlice, 0)
if err != io.EOF {
t.Fatalf("Retrieve error: %v", err)
}
if n != len(slice) {
t.Fatalf("Slice size error got %d, expected %d.", n, len(slice))
}
if !bytes.Equal(slice, resultSlice) {
t.Fatalf("Comparison error.")
}
// Clear memStore
memStore.setCapacity(0)
// check whether it is, indeed, empty
fileStore.ChunkStore = memStore
resultReader, isEncrypted = fileStore.Retrieve(context.TODO(), key)
if isEncrypted != toEncrypt {
t.Fatalf("isEncrypted expected %v got %v", toEncrypt, isEncrypted)
}
if _, err = resultReader.ReadAt(resultSlice, 0); err == nil {
t.Fatalf("Was able to read %d bytes from an empty memStore.", len(slice))
}
// check how it works with localStore
fileStore.ChunkStore = localStore
// localStore.dbStore.setCapacity(0)
resultReader, isEncrypted = fileStore.Retrieve(context.TODO(), key)
if isEncrypted != toEncrypt {
t.Fatalf("isEncrypted expected %v got %v", toEncrypt, isEncrypted)
}
for i := range resultSlice {
resultSlice[i] = 0
}
n, err = resultReader.ReadAt(resultSlice, 0)
if err != io.EOF {
t.Fatalf("Retrieve error after clearing memStore: %v", err)
}
if n != len(slice) {
t.Fatalf("Slice size error after clearing memStore got %d, expected %d.", n, len(slice))
}
if !bytes.Equal(slice, resultSlice) {
t.Fatalf("Comparison error after clearing memStore.")
}
}
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