mirror of
https://github.com/octoleo/syncthing.git
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445 lines
11 KiB
Go
445 lines
11 KiB
Go
// 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
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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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package model
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import (
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"fmt"
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"path/filepath"
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"runtime"
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"testing"
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"time"
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"github.com/syncthing/syncthing/lib/config"
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"github.com/syncthing/syncthing/lib/events"
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"github.com/syncthing/syncthing/lib/protocol"
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"github.com/syncthing/syncthing/lib/sync"
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)
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var timeout = 100 * time.Millisecond
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func caller(skip int) string {
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_, file, line, ok := runtime.Caller(skip + 1)
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if !ok {
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return "unknown"
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}
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return fmt.Sprintf("%s:%d", filepath.Base(file), line)
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}
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func expectEvent(w *events.Subscription, t *testing.T, size int) {
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event, err := w.Poll(timeout)
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if err != nil {
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t.Fatal("Unexpected error:", err, "at", caller(1))
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}
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if event.Type != events.DownloadProgress {
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t.Fatal("Unexpected event:", event, "at", caller(1))
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}
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data := event.Data.(map[string]map[string]*pullerProgress)
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if len(data) != size {
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t.Fatal("Unexpected event data size:", data, "at", caller(1))
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}
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}
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func expectTimeout(w *events.Subscription, t *testing.T) {
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_, err := w.Poll(timeout)
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if err != events.ErrTimeout {
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t.Fatal("Unexpected non-Timeout error:", err, "at", caller(1))
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}
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}
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func TestProgressEmitter(t *testing.T) {
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w := events.Default.Subscribe(events.DownloadProgress)
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c := config.Wrap("/tmp/test", config.Configuration{})
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c.SetOptions(config.OptionsConfiguration{
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ProgressUpdateIntervalS: 0,
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})
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p := NewProgressEmitter(c)
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go p.Serve()
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p.interval = 0
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expectTimeout(w, t)
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s := sharedPullerState{
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updated: time.Now(),
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mut: sync.NewRWMutex(),
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}
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p.Register(&s)
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expectEvent(w, t, 1)
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expectTimeout(w, t)
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s.copyDone(protocol.BlockInfo{})
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expectEvent(w, t, 1)
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expectTimeout(w, t)
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s.copiedFromOrigin()
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expectEvent(w, t, 1)
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expectTimeout(w, t)
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s.pullStarted()
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expectEvent(w, t, 1)
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expectTimeout(w, t)
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s.pullDone(protocol.BlockInfo{})
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expectEvent(w, t, 1)
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expectTimeout(w, t)
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p.Deregister(&s)
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expectEvent(w, t, 0)
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expectTimeout(w, t)
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}
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func TestSendDownloadProgressMessages(t *testing.T) {
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c := config.Wrap("/tmp/test", config.Configuration{})
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c.SetOptions(config.OptionsConfiguration{
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ProgressUpdateIntervalS: 0,
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TempIndexMinBlocks: 10,
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})
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fc := &fakeConnection{}
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p := NewProgressEmitter(c)
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p.temporaryIndexSubscribe(fc, []string{"folder", "folder2"})
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expect := func(updateIdx int, state *sharedPullerState, updateType protocol.FileDownloadProgressUpdateType, version protocol.Vector, blocks []int32, remove bool) {
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messageIdx := -1
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for i, msg := range fc.downloadProgressMessages {
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if msg.folder == state.folder {
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messageIdx = i
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break
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}
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}
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if messageIdx < 0 {
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t.Errorf("Message for folder %s does not exist at %s", state.folder, caller(1))
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}
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msg := fc.downloadProgressMessages[messageIdx]
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// Don't know the index (it's random due to iterating maps)
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if updateIdx == -1 {
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for i, upd := range msg.updates {
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if upd.Name == state.file.Name {
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updateIdx = i
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break
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}
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}
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}
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if updateIdx == -1 {
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t.Errorf("Could not find update for %s at %s", state.file.Name, caller(1))
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}
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if updateIdx > len(msg.updates)-1 {
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t.Errorf("Update at index %d does not exist at %s", updateIdx, caller(1))
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}
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update := msg.updates[updateIdx]
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if update.UpdateType != updateType {
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t.Errorf("Wrong update type at %s", caller(1))
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}
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if !update.Version.Equal(version) {
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t.Errorf("Wrong version at %s", caller(1))
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}
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if len(update.BlockIndexes) != len(blocks) {
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t.Errorf("Wrong indexes. Have %d expect %d at %s", len(update.BlockIndexes), len(blocks), caller(1))
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}
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for i := range update.BlockIndexes {
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if update.BlockIndexes[i] != blocks[i] {
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t.Errorf("Index %d incorrect at %s", i, caller(1))
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}
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}
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if remove {
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fc.downloadProgressMessages = append(fc.downloadProgressMessages[:messageIdx], fc.downloadProgressMessages[messageIdx+1:]...)
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}
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}
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expectEmpty := func() {
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if len(fc.downloadProgressMessages) > 0 {
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t.Errorf("Still have something at %s: %#v", caller(1), fc.downloadProgressMessages)
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}
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}
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now := time.Now()
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tick := func() time.Time {
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now = now.Add(time.Second)
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return now
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}
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if len(fc.downloadProgressMessages) != 0 {
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t.Error("Expected no requests")
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}
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v1 := (protocol.Vector{}).Update(0)
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v2 := (protocol.Vector{}).Update(1)
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// Requires more than 10 blocks to work.
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blocks := make([]protocol.BlockInfo, 11, 11)
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state1 := &sharedPullerState{
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folder: "folder",
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file: protocol.FileInfo{
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Name: "state1",
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Version: v1,
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Blocks: blocks,
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},
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mut: sync.NewRWMutex(),
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availableUpdated: time.Now(),
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}
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p.registry["1"] = state1
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// Has no blocks, hence no message is sent
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p.sendDownloadProgressMessages()
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expectEmpty()
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// Returns update for puller with new extra blocks
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state1.available = []int32{1}
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p.sendDownloadProgressMessages()
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expect(0, state1, protocol.UpdateTypeAppend, v1, []int32{1}, true)
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expectEmpty()
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// Does nothing if nothing changes
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p.sendDownloadProgressMessages()
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expectEmpty()
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// Does nothing if timestamp updated, but no new blocks (should never happen)
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state1.availableUpdated = tick()
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p.sendDownloadProgressMessages()
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expectEmpty()
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// Does not return an update if date blocks change but date does not (should never happen)
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state1.available = []int32{1, 2}
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p.sendDownloadProgressMessages()
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expectEmpty()
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// If the date and blocks changes, returns only the diff
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state1.availableUpdated = tick()
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p.sendDownloadProgressMessages()
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expect(0, state1, protocol.UpdateTypeAppend, v1, []int32{2}, true)
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expectEmpty()
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// Returns forget and update if puller version has changed
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state1.file.Version = v2
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p.sendDownloadProgressMessages()
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expect(0, state1, protocol.UpdateTypeForget, v1, nil, false)
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expect(1, state1, protocol.UpdateTypeAppend, v2, []int32{1, 2}, true)
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expectEmpty()
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// Returns forget and append if sharedPullerState creation timer changes.
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state1.available = []int32{1}
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state1.availableUpdated = tick()
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state1.created = tick()
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p.sendDownloadProgressMessages()
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expect(0, state1, protocol.UpdateTypeForget, v2, nil, false)
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expect(1, state1, protocol.UpdateTypeAppend, v2, []int32{1}, true)
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expectEmpty()
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// Sends an empty update if new file exists, but does not have any blocks yet. (To indicate that the old blocks are no longer available)
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state1.file.Version = v1
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state1.available = nil
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state1.availableUpdated = tick()
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p.sendDownloadProgressMessages()
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expect(0, state1, protocol.UpdateTypeForget, v2, nil, false)
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expect(1, state1, protocol.UpdateTypeAppend, v1, nil, true)
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expectEmpty()
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// Updates for multiple files and folders can be combined
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state1.available = []int32{1, 2, 3}
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state1.availableUpdated = tick()
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state2 := &sharedPullerState{
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folder: "folder2",
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file: protocol.FileInfo{
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Name: "state2",
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Version: v1,
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Blocks: blocks,
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},
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mut: sync.NewRWMutex(),
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available: []int32{1, 2, 3},
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availableUpdated: time.Now(),
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}
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state3 := &sharedPullerState{
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folder: "folder",
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file: protocol.FileInfo{
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Name: "state3",
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Version: v1,
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Blocks: blocks,
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},
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mut: sync.NewRWMutex(),
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available: []int32{1, 2, 3},
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availableUpdated: time.Now(),
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}
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state4 := &sharedPullerState{
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folder: "folder2",
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file: protocol.FileInfo{
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Name: "state4",
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Version: v1,
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Blocks: blocks,
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},
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mut: sync.NewRWMutex(),
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available: []int32{1, 2, 3},
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availableUpdated: time.Now(),
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}
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p.registry["2"] = state2
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p.registry["3"] = state3
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p.registry["4"] = state4
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p.sendDownloadProgressMessages()
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expect(-1, state1, protocol.UpdateTypeAppend, v1, []int32{1, 2, 3}, false)
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expect(-1, state3, protocol.UpdateTypeAppend, v1, []int32{1, 2, 3}, true)
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expect(-1, state2, protocol.UpdateTypeAppend, v1, []int32{1, 2, 3}, false)
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expect(-1, state4, protocol.UpdateTypeAppend, v1, []int32{1, 2, 3}, true)
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expectEmpty()
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// Returns forget if puller no longer exists, as well as updates if it has been updated.
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state1.available = []int32{1, 2, 3, 4, 5}
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state1.availableUpdated = tick()
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state2.available = []int32{1, 2, 3, 4, 5}
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state2.availableUpdated = tick()
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delete(p.registry, "3")
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delete(p.registry, "4")
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p.sendDownloadProgressMessages()
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expect(-1, state1, protocol.UpdateTypeAppend, v1, []int32{4, 5}, false)
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expect(-1, state3, protocol.UpdateTypeForget, v1, nil, true)
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expect(-1, state2, protocol.UpdateTypeAppend, v1, []int32{4, 5}, false)
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expect(-1, state4, protocol.UpdateTypeForget, v1, nil, true)
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expectEmpty()
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// Deletions are sent only once (actual bug I found writing the tests)
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p.sendDownloadProgressMessages()
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p.sendDownloadProgressMessages()
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expectEmpty()
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// Not sent for "inactive" (symlinks, dirs, or wrong folder) pullers
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// Directory
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state5 := &sharedPullerState{
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folder: "folder",
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file: protocol.FileInfo{
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Name: "state5",
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Version: v1,
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Type: protocol.FileInfoTypeDirectory,
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Blocks: blocks,
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},
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mut: sync.NewRWMutex(),
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available: []int32{1, 2, 3},
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availableUpdated: time.Now(),
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}
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// Symlink
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state6 := &sharedPullerState{
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folder: "folder",
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file: protocol.FileInfo{
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Name: "state6",
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Version: v1,
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Type: protocol.FileInfoTypeSymlink,
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},
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mut: sync.NewRWMutex(),
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available: []int32{1, 2, 3},
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availableUpdated: time.Now(),
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}
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// Some other directory
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state7 := &sharedPullerState{
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folder: "folderXXX",
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file: protocol.FileInfo{
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Name: "state7",
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Version: v1,
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Blocks: blocks,
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},
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mut: sync.NewRWMutex(),
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available: []int32{1, 2, 3},
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availableUpdated: time.Now(),
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}
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// Less than 10 blocks
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state8 := &sharedPullerState{
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folder: "folder",
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file: protocol.FileInfo{
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Name: "state8",
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Version: v1,
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Blocks: blocks[:3],
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},
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mut: sync.NewRWMutex(),
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available: []int32{1, 2, 3},
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availableUpdated: time.Now(),
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}
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p.registry["5"] = state5
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p.registry["6"] = state6
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p.registry["7"] = state7
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p.registry["8"] = state8
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p.sendDownloadProgressMessages()
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expectEmpty()
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// Device is no longer subscribed to a particular folder
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delete(p.registry, "1") // Clean up first
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delete(p.registry, "2") // Clean up first
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p.sendDownloadProgressMessages()
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expect(-1, state1, protocol.UpdateTypeForget, v1, nil, true)
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expect(-1, state2, protocol.UpdateTypeForget, v1, nil, true)
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expectEmpty()
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p.registry["1"] = state1
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p.registry["2"] = state2
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p.registry["3"] = state3
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p.registry["4"] = state4
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p.sendDownloadProgressMessages()
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expect(-1, state1, protocol.UpdateTypeAppend, v1, []int32{1, 2, 3, 4, 5}, false)
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expect(-1, state3, protocol.UpdateTypeAppend, v1, []int32{1, 2, 3}, true)
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expect(-1, state2, protocol.UpdateTypeAppend, v1, []int32{1, 2, 3, 4, 5}, false)
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expect(-1, state4, protocol.UpdateTypeAppend, v1, []int32{1, 2, 3}, true)
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expectEmpty()
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p.temporaryIndexUnsubscribe(fc)
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p.temporaryIndexSubscribe(fc, []string{"folder"})
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p.sendDownloadProgressMessages()
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// See progressemitter.go for explanation why this is commented out.
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// Search for state.cleanup
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//expect(-1, state2, protocol.UpdateTypeForget, v1, nil, false)
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//expect(-1, state4, protocol.UpdateTypeForget, v1, nil, true)
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expectEmpty()
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// Cleanup when device no longer exists
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p.temporaryIndexUnsubscribe(fc)
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p.sendDownloadProgressMessages()
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_, ok := p.sentDownloadStates[fc.ID()]
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if ok {
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t.Error("Should not be there")
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}
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}
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