syncthing/test/override_test.go

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// Copyright (C) 2015 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// +build integration
package integration
import (
"io/ioutil"
"log"
"os"
"strings"
"testing"
"time"
"github.com/syncthing/protocol"
"github.com/syncthing/syncthing/internal/config"
)
func TestOverride(t *testing.T) {
// Enable "Master" on s1/default
id, _ := protocol.DeviceIDFromString(id1)
cfg, _ := config.Load("h1/config.xml", id)
fld := cfg.Folders()["default"]
fld.ReadOnly = true
cfg.SetFolder(fld)
os.Rename("h1/config.xml", "h1/config.xml.orig")
defer os.Rename("h1/config.xml.orig", "h1/config.xml")
cfg.Save()
log.Println("Cleaning...")
err := removeAll("s1", "s2", "h1/index*", "h2/index*")
if err != nil {
t.Fatal(err)
}
log.Println("Generating files...")
err = generateFiles("s1", 100, 20, "../LICENSE")
if err != nil {
t.Fatal(err)
}
fd, err := os.Create("s1/testfile.txt")
if err != nil {
t.Fatal(err)
}
_, err = fd.WriteString("hello\n")
if err != nil {
t.Fatal(err)
}
err = fd.Close()
if err != nil {
t.Fatal(err)
}
expected, err := directoryContents("s1")
if err != nil {
t.Fatal(err)
}
log.Println("Starting master...")
master := syncthingProcess{ // id1
instance: "1",
argv: []string{"-home", "h1"},
port: 8081,
apiKey: apiKey,
}
err = master.start()
if err != nil {
t.Fatal(err)
}
defer master.stop()
// Wait for one scan to succeed, or up to 20 seconds... This is to let
// startup, UPnP etc complete and make sure the master has the full index
// before they connect.
for i := 0; i < 20; i++ {
err := master.rescan("default")
if err != nil {
time.Sleep(time.Second)
continue
}
break
}
log.Println("Starting slave...")
slave := syncthingProcess{ // id2
instance: "2",
argv: []string{"-home", "h2"},
port: 8082,
apiKey: apiKey,
}
err = slave.start()
if err != nil {
master.stop()
t.Fatal(err)
}
defer slave.stop()
log.Println("Syncing...")
if err = ovCompletion(100, master, slave); err != nil {
t.Fatal(err)
}
log.Println("Verifying...")
actual, err := directoryContents("s2")
if err != nil {
t.Fatal(err)
}
err = compareDirectoryContents(actual, expected)
if err != nil {
t.Fatal(err)
}
log.Println("Changing file on slave side...")
fd, err = os.OpenFile("s2/testfile.txt", os.O_WRONLY|os.O_APPEND, 0644)
if err != nil {
t.Fatal(err)
}
_, err = fd.WriteString("text added to s2\n")
if err != nil {
t.Fatal(err)
}
err = fd.Close()
if err != nil {
t.Fatal(err)
}
err = slave.rescan("default")
if err != nil {
t.Fatal(err)
}
log.Println("Syncing...")
time.Sleep(5 * time.Second)
// Expect ~99% completion since the change will be rejected by the master side
if err = ovCompletion(99, master, slave); err != nil {
t.Fatal(err)
}
log.Println("Hitting Override on master...")
2015-04-08 12:23:26 +00:00
resp, err := master.post("/rest/db/override?folder=default", nil)
if err != nil {
t.Fatal(err)
}
if resp.StatusCode != 200 {
t.Fatal(resp.Status)
}
log.Println("Syncing...")
if err = ovCompletion(100, master, slave); err != nil {
t.Fatal(err)
}
// Verify that the override worked
fd, err = os.Open("s1/testfile.txt")
if err != nil {
t.Fatal(err)
}
bs, err := ioutil.ReadAll(fd)
if err != nil {
t.Fatal(err)
}
fd.Close()
if strings.Contains(string(bs), "added to s2") {
t.Error("Change should not have been synced to master")
}
fd, err = os.Open("s2/testfile.txt")
if err != nil {
t.Fatal(err)
}
bs, err = ioutil.ReadAll(fd)
if err != nil {
t.Fatal(err)
}
fd.Close()
if strings.Contains(string(bs), "added to s2") {
t.Error("Change should have been overridden on slave")
}
}
func ovCompletion(expected int, p ...syncthingProcess) error {
mainLoop:
for {
time.Sleep(2500 * time.Millisecond)
tot := 0
for i := range p {
comp, err := p[i].peerCompletion()
if err != nil {
if isTimeout(err) {
continue mainLoop
}
return err
}
for _, pct := range comp {
tot += pct
}
}
if tot >= expected*len(p) {
return nil
}
log.Printf("%d / %d...", tot, expected*len(p))
}
}