536 lines
11 KiB
Go
536 lines
11 KiB
Go
// Copyright (C) 2015 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at https://mozilla.org/MPL/2.0/.
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//go:build integration
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// +build integration
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package integration
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import (
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"bytes"
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"log"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/syncthing/syncthing/lib/rc"
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)
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func TestConflictsDefault(t *testing.T) {
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log.Println("Cleaning...")
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err := removeAll("s1", "s2", "h1/index*", "h2/index*")
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if err != nil {
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t.Fatal(err)
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}
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log.Println("Generating files...")
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err = generateFiles("s1", 100, 20, "../LICENSE")
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if err != nil {
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t.Fatal(err)
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}
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fd, err := os.Create("s1/testfile.txt")
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if err != nil {
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t.Fatal(err)
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}
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_, err = fd.WriteString("hello\n")
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if err != nil {
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t.Fatal(err)
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}
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err = fd.Close()
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if err != nil {
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t.Fatal(err)
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}
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expected, err := directoryContents("s1")
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if err != nil {
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t.Fatal(err)
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}
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sender := startInstance(t, 1)
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defer checkedStop(t, sender)
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receiver := startInstance(t, 2)
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defer checkedStop(t, receiver)
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sender.ResumeAll()
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receiver.ResumeAll()
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// Rescan with a delay on the next one, so we are not surprised by a
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// sudden rescan while we're trying to introduce conflicts.
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if err := sender.RescanDelay("default", 86400); err != nil {
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t.Fatal(err)
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}
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if err := receiver.RescanDelay("default", 86400); err != nil {
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t.Fatal(err)
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}
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rc.AwaitSync("default", sender, receiver)
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log.Println("Verifying...")
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actual, err := directoryContents("s2")
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if err != nil {
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t.Fatal(err)
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}
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err = compareDirectoryContents(actual, expected)
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if err != nil {
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t.Fatal(err)
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}
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log.Println("Introducing a conflict (simultaneous edit)...")
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if err := sender.PauseDevice(receiver.ID()); err != nil {
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t.Fatal(err)
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}
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fd, err = os.OpenFile("s1/testfile.txt", os.O_WRONLY|os.O_APPEND, 0644)
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if err != nil {
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t.Fatal(err)
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}
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_, err = fd.WriteString("text added to s1\n")
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if err != nil {
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t.Fatal(err)
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}
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err = fd.Close()
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if err != nil {
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t.Fatal(err)
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}
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fd, err = os.OpenFile("s2/testfile.txt", os.O_WRONLY|os.O_APPEND, 0644)
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if err != nil {
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t.Fatal(err)
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}
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_, err = fd.WriteString("text added to s2\n")
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if err != nil {
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t.Fatal(err)
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}
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err = fd.Close()
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if err != nil {
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t.Fatal(err)
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}
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if err := sender.ResumeDevice(receiver.ID()); err != nil {
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t.Fatal(err)
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}
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log.Println("Syncing...")
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if err := sender.RescanDelay("default", 86400); err != nil {
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t.Fatal(err)
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}
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if err := receiver.RescanDelay("default", 86400); err != nil {
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t.Fatal(err)
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}
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rc.AwaitSync("default", sender, receiver)
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// Expect one conflict file, created on either side.
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files, err := filepath.Glob("s?/*sync-conflict*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 2 {
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t.Errorf("Expected 1 conflicted file on each side, instead of totally %d", len(files))
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} else if filepath.Base(files[0]) != filepath.Base(files[1]) {
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t.Errorf(`Expected same conflicted file on both sides, got "%v" and "%v"`, files[0], files[1])
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}
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log.Println("Introducing a conflict (edit plus delete)...")
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if err := sender.PauseDevice(receiver.ID()); err != nil {
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t.Fatal(err)
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}
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err = os.Remove("s1/testfile.txt")
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if err != nil {
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t.Fatal(err)
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}
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fd, err = os.OpenFile("s2/testfile.txt", os.O_WRONLY|os.O_APPEND, 0644)
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if err != nil {
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t.Fatal(err)
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}
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_, err = fd.WriteString("more text added to s2\n")
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if err != nil {
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t.Fatal(err)
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}
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err = fd.Close()
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if err != nil {
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t.Fatal(err)
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}
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if err := sender.ResumeDevice(receiver.ID()); err != nil {
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t.Fatal(err)
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}
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log.Println("Syncing...")
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if err := sender.RescanDelay("default", 86400); err != nil {
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t.Fatal(err)
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}
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if err := receiver.RescanDelay("default", 86400); err != nil {
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t.Fatal(err)
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}
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rc.AwaitSync("default", sender, receiver)
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// The conflict is resolved to the advantage of the edit over the delete.
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// As such, we get the edited content synced back to s1 where it was
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// removed.
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files, err = filepath.Glob("s2/*sync-conflict*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 1 {
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t.Errorf("Expected 1 conflicted files instead of %d", len(files))
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}
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bs, err := os.ReadFile("s1/testfile.txt")
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if err != nil {
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t.Error("reading file:", err)
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}
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if !bytes.Contains(bs, []byte("more text added to s2")) {
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t.Error("s1/testfile.txt should contain data added in s2")
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}
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}
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func TestConflictsInitialMerge(t *testing.T) {
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log.Println("Cleaning...")
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err := removeAll("s1", "s2", "h1/index*", "h2/index*")
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if err != nil {
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t.Fatal(err)
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}
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err = os.Mkdir("s1", 0755)
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if err != nil {
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t.Fatal(err)
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}
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err = os.Mkdir("s2", 0755)
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if err != nil {
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t.Fatal(err)
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}
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// File 1 is a conflict
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err = os.WriteFile("s1/file1", []byte("hello\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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err = os.WriteFile("s2/file1", []byte("goodbye\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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// File 2 exists on s1 only
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err = os.WriteFile("s1/file2", []byte("hello\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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// File 3 exists on s2 only
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err = os.WriteFile("s2/file3", []byte("goodbye\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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// Let them sync
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sender := startInstance(t, 1)
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defer checkedStop(t, sender)
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receiver := startInstance(t, 2)
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defer checkedStop(t, receiver)
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sender.ResumeAll()
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receiver.ResumeAll()
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log.Println("Syncing...")
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rc.AwaitSync("default", sender, receiver)
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// Do it once more so the conflict copies propagate to both sides.
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sender.Rescan("default")
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receiver.Rescan("default")
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rc.AwaitSync("default", sender, receiver)
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checkedStop(t, sender)
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checkedStop(t, receiver)
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log.Println("Verifying...")
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// s1 should have four files (there's a conflict)
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files, err := filepath.Glob("s1/file*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 4 {
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t.Errorf("Expected 4 files in s1 instead of %d", len(files))
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}
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// s2 should have four files (there's a conflict)
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files, err = filepath.Glob("s2/file*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 4 {
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t.Errorf("Expected 4 files in s2 instead of %d", len(files))
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}
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// file1 is in conflict, so there's two versions of that one
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files, err = filepath.Glob("s2/file1*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 2 {
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t.Errorf("Expected 2 'file1' files in s2 instead of %d", len(files))
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}
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}
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func TestConflictsIndexReset(t *testing.T) {
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log.Println("Cleaning...")
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err := removeAll("s1", "s2", "h1/index*", "h2/index*")
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if err != nil {
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t.Fatal(err)
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}
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err = os.Mkdir("s1", 0755)
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if err != nil {
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t.Fatal(err)
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}
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err = os.Mkdir("s2", 0755)
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if err != nil {
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t.Fatal(err)
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}
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// Three files on s1
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err = os.WriteFile("s1/file1", []byte("hello\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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err = os.WriteFile("s1/file2", []byte("hello\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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err = os.WriteFile("s2/file3", []byte("hello\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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// Let them sync
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sender := startInstance(t, 1)
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defer checkedStop(t, sender)
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receiver := startInstance(t, 2)
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defer checkedStop(t, receiver)
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sender.ResumeAll()
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receiver.ResumeAll()
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log.Println("Syncing...")
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rc.AwaitSync("default", sender, receiver)
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log.Println("Verifying...")
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// s1 should have three files
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files, err := filepath.Glob("s1/file*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 3 {
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t.Errorf("Expected 3 files in s1 instead of %d", len(files))
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}
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// s2 should have three files
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files, err = filepath.Glob("s2/file*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 3 {
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t.Errorf("Expected 3 files in s2 instead of %d", len(files))
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}
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log.Println("Updating...")
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// change s2/file2 a few times, so that its version counter increases.
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// This will make the file on the cluster look newer than what we have
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// locally after we rest the index, unless we have a fix for that.
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for i := 0; i < 5; i++ {
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err = os.WriteFile("s2/file2", []byte("hello1\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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err = receiver.Rescan("default")
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if err != nil {
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t.Fatal(err)
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}
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time.Sleep(time.Second)
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}
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rc.AwaitSync("default", sender, receiver)
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// Now nuke the index
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log.Println("Resetting...")
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checkedStop(t, receiver)
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removeAll("h2/index*")
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// s1/file1 (remote) changes while receiver is down
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err = os.WriteFile("s1/file1", []byte("goodbye\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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// s1 must know about it
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err = sender.Rescan("default")
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if err != nil {
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t.Fatal(err)
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}
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// s2/file2 (local) changes while receiver is down
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err = os.WriteFile("s2/file2", []byte("goodbye\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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receiver = startInstance(t, 2)
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defer checkedStop(t, receiver)
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receiver.ResumeAll()
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log.Println("Syncing...")
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rc.AwaitSync("default", sender, receiver)
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// s2 should have five files (three plus two conflicts)
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files, err = filepath.Glob("s2/file*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 5 {
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t.Errorf("Expected 5 files in s2 instead of %d", len(files))
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}
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// file1 is in conflict, so there's two versions of that one
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files, err = filepath.Glob("s2/file1*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 2 {
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t.Errorf("Expected 2 'file1' files in s2 instead of %d", len(files))
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}
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// file2 is in conflict, so there's two versions of that one
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files, err = filepath.Glob("s2/file2*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 2 {
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t.Errorf("Expected 2 'file2' files in s2 instead of %d", len(files))
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}
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}
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func TestConflictsSameContent(t *testing.T) {
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log.Println("Cleaning...")
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err := removeAll("s1", "s2", "h1/index*", "h2/index*")
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if err != nil {
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t.Fatal(err)
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}
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err = os.Mkdir("s1", 0755)
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if err != nil {
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t.Fatal(err)
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}
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err = os.Mkdir("s2", 0755)
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if err != nil {
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t.Fatal(err)
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}
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// Two files on s1
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err = os.WriteFile("s1/file1", []byte("hello\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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err = os.WriteFile("s1/file2", []byte("hello\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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// Two files on s2, content differs in file1 only, timestamps differ on both.
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err = os.WriteFile("s2/file1", []byte("goodbye\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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err = os.WriteFile("s2/file2", []byte("hello\n"), 0644)
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if err != nil {
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t.Fatal(err)
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}
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ts := time.Now().Add(-time.Hour)
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os.Chtimes("s2/file1", ts, ts)
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os.Chtimes("s2/file2", ts, ts)
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// Let them sync
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sender := startInstance(t, 1)
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defer checkedStop(t, sender)
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receiver := startInstance(t, 2)
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defer checkedStop(t, receiver)
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sender.ResumeAll()
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receiver.ResumeAll()
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log.Println("Syncing...")
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rc.AwaitSync("default", sender, receiver)
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// Let conflict copies propagate
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sender.Rescan("default")
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receiver.Rescan("default")
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rc.AwaitSync("default", sender, receiver)
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log.Println("Verifying...")
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// s1 should have three files
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files, err := filepath.Glob("s1/file*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 3 {
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t.Errorf("Expected 3 files in s1 instead of %d", len(files))
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}
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// s2 should have three files
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files, err = filepath.Glob("s2/file*")
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if err != nil {
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t.Fatal(err)
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}
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if len(files) != 3 {
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t.Errorf("Expected 3 files in s2 instead of %d", len(files))
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}
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}
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