142 lines
3.7 KiB
Go
142 lines
3.7 KiB
Go
// Copyright 2018 The go-ethereum Authors
|
|
// This file is part of go-ethereum.
|
|
//
|
|
// go-ethereum is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// go-ethereum 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 General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
// +build !windows
|
|
|
|
package main
|
|
|
|
import (
|
|
"bytes"
|
|
"crypto/md5"
|
|
"crypto/rand"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"os"
|
|
"strings"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/swarm"
|
|
)
|
|
|
|
// TestCLISwarmExportImport perform the following test:
|
|
// 1. runs swarm node
|
|
// 2. uploads a random file
|
|
// 3. runs an export of the local datastore
|
|
// 4. runs a second swarm node
|
|
// 5. imports the exported datastore
|
|
// 6. fetches the uploaded random file from the second node
|
|
func TestCLISwarmExportImport(t *testing.T) {
|
|
cluster := newTestCluster(t, 1)
|
|
|
|
// generate random 10mb file
|
|
f, cleanup := generateRandomFile(t, 10000000)
|
|
defer cleanup()
|
|
|
|
// upload the file with 'swarm up' and expect a hash
|
|
up := runSwarm(t, "--bzzapi", cluster.Nodes[0].URL, "up", f.Name())
|
|
_, matches := up.ExpectRegexp(`[a-f\d]{64}`)
|
|
up.ExpectExit()
|
|
hash := matches[0]
|
|
|
|
var info swarm.Info
|
|
if err := cluster.Nodes[0].Client.Call(&info, "bzz_info"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
cluster.Stop()
|
|
defer cluster.Cleanup()
|
|
|
|
// generate an export.tar
|
|
exportCmd := runSwarm(t, "db", "export", info.Path+"/chunks", info.Path+"/export.tar", strings.TrimPrefix(info.BzzKey, "0x"))
|
|
exportCmd.ExpectExit()
|
|
|
|
// start second cluster
|
|
cluster2 := newTestCluster(t, 1)
|
|
|
|
var info2 swarm.Info
|
|
if err := cluster2.Nodes[0].Client.Call(&info2, "bzz_info"); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// stop second cluster, so that we close LevelDB
|
|
cluster2.Stop()
|
|
defer cluster2.Cleanup()
|
|
|
|
// import the export.tar
|
|
importCmd := runSwarm(t, "db", "import", info2.Path+"/chunks", info.Path+"/export.tar", strings.TrimPrefix(info2.BzzKey, "0x"))
|
|
importCmd.ExpectExit()
|
|
|
|
// spin second cluster back up
|
|
cluster2.StartExistingNodes(t, 1, strings.TrimPrefix(info2.BzzAccount, "0x"))
|
|
|
|
// try to fetch imported file
|
|
res, err := http.Get(cluster2.Nodes[0].URL + "/bzz:/" + hash)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if res.StatusCode != 200 {
|
|
t.Fatalf("expected HTTP status %d, got %s", 200, res.Status)
|
|
}
|
|
|
|
// compare downloaded file with the generated random file
|
|
mustEqualFiles(t, f, res.Body)
|
|
}
|
|
|
|
func mustEqualFiles(t *testing.T, up io.Reader, down io.Reader) {
|
|
h := md5.New()
|
|
upLen, err := io.Copy(h, up)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
upHash := h.Sum(nil)
|
|
h.Reset()
|
|
downLen, err := io.Copy(h, down)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
downHash := h.Sum(nil)
|
|
|
|
if !bytes.Equal(upHash, downHash) || upLen != downLen {
|
|
t.Fatalf("downloaded imported file md5=%x (length %v) is not the same as the generated one mp5=%x (length %v)", downHash, downLen, upHash, upLen)
|
|
}
|
|
}
|
|
|
|
func generateRandomFile(t *testing.T, size int) (f *os.File, teardown func()) {
|
|
// create a tmp file
|
|
tmp, err := ioutil.TempFile("", "swarm-test")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// callback for tmp file cleanup
|
|
teardown = func() {
|
|
tmp.Close()
|
|
os.Remove(tmp.Name())
|
|
}
|
|
|
|
// write 10mb random data to file
|
|
buf := make([]byte, 10000000)
|
|
_, err = rand.Read(buf)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
ioutil.WriteFile(tmp.Name(), buf, 0755)
|
|
|
|
return tmp, teardown
|
|
}
|