syncthing/test/reconnect_test.go

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// Copyright (C) 2014 The Syncthing Authors.
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//
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// 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 https://mozilla.org/MPL/2.0/.
// +build integration
package integration
import (
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"log"
"sync"
"testing"
"time"
)
func TestRestartReceiverDuringTransfer(t *testing.T) {
testRestartDuringTransfer(t, false, true, 0, 0)
}
func TestRestartSenderDuringTransfer(t *testing.T) {
testRestartDuringTransfer(t, true, false, 0, 0)
}
func TestRestartSenderAndReceiverDuringTransfer(t *testing.T) {
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// Give the receiver some time to rot with needed files but
// without any peer. This triggers
// https://github.com/syncthing/syncthing/issues/463
testRestartDuringTransfer(t, true, true, 10*time.Second, 0)
}
func testRestartDuringTransfer(t *testing.T, restartSender, restartReceiver bool, senderDelay, receiverDelay time.Duration) {
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log.Println("Cleaning...")
err := removeAll("s1", "s2", "h1/index*", "h2/index*")
if err != nil {
t.Fatal(err)
}
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log.Println("Generating files...")
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err = generateFiles("s1", 250, 20, "../LICENSE")
if err != nil {
t.Fatal(err)
}
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log.Println("Starting up...")
sender := startInstance(t, 1)
defer func() {
// We need a closure over sender, since we'll update it later to point
// at another process.
checkedStop(t, sender)
}()
receiver := startInstance(t, 2)
defer func() {
// We need a receiver over sender, since we'll update it later to
// point at another process.
checkedStop(t, receiver)
}()
var prevBytes int
for {
recv, err := receiver.Model("default")
if err != nil {
t.Fatal(err)
}
if recv.InSyncBytes > 0 && recv.InSyncBytes == recv.GlobalBytes {
// Receiver is done
break
} else if recv.InSyncBytes > prevBytes+recv.GlobalBytes/10 {
// Receiver has made progress
prevBytes = recv.InSyncBytes
if restartReceiver {
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log.Printf("Stopping receiver...")
checkedStop(t, receiver)
}
if restartSender {
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log.Printf("Stopping sender...")
checkedStop(t, sender)
}
var wg sync.WaitGroup
if restartReceiver {
wg.Add(1)
go func() {
time.Sleep(receiverDelay)
receiver = startInstance(t, 2)
wg.Done()
}()
}
if restartSender {
wg.Add(1)
go func() {
time.Sleep(senderDelay)
sender = startInstance(t, 1)
wg.Done()
}()
}
wg.Wait()
}
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time.Sleep(time.Second)
}
checkedStop(t, sender)
checkedStop(t, receiver)
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log.Println("Comparing directories...")
err = compareDirectories("s1", "s2")
if err != nil {
t.Fatal(err)
}
}