syncthing/lib/config/config_test.go
Jakob Borg da34f27546 gui, lib/config, lib/model: Allow absolute values for minimum disk free space (fixes #3307)
This deprecates the current minDiskFreePct setting and introduces
minDiskFree. The latter is, in it's serialized form, a string with a
unit. We accept percentages ("2.35%") and absolute values ("250 k", "12.5
Gi"). Common suffixes are understood. The config editor lets the user
enter the string, and validates it.

We still default to "1 %", but the user can change that to an absolute
value at will.

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4087
LGTM: AudriusButkevicius, imsodin
2017-04-12 09:01:19 +00:00

810 lines
21 KiB
Go

// Copyright (C) 2014 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 https://mozilla.org/MPL/2.0/.
package config
import (
"bytes"
"encoding/json"
"fmt"
"os"
"path/filepath"
"reflect"
"runtime"
"sort"
"strings"
"testing"
"github.com/d4l3k/messagediff"
"github.com/syncthing/syncthing/lib/protocol"
)
var device1, device2, device3, device4 protocol.DeviceID
func init() {
device1, _ = protocol.DeviceIDFromString("AIR6LPZ7K4PTTUXQSMUUCPQ5YWOEDFIIQJUG7772YQXXR5YD6AWQ")
device2, _ = protocol.DeviceIDFromString("GYRZZQB-IRNPV4Z-T7TC52W-EQYJ3TT-FDQW6MW-DFLMU42-SSSU6EM-FBK2VAY")
device3, _ = protocol.DeviceIDFromString("LGFPDIT-7SKNNJL-VJZA4FC-7QNCRKA-CE753K7-2BW5QDK-2FOZ7FR-FEP57QJ")
device4, _ = protocol.DeviceIDFromString("P56IOI7-MZJNU2Y-IQGDREY-DM2MGTI-MGL3BXN-PQ6W5BM-TBBZ4TJ-XZWICQ2")
}
func TestDefaultValues(t *testing.T) {
expected := OptionsConfiguration{
ListenAddresses: []string{"default"},
GlobalAnnServers: []string{"default"},
GlobalAnnEnabled: true,
LocalAnnEnabled: true,
LocalAnnPort: 21027,
LocalAnnMCAddr: "[ff12::8384]:21027",
MaxSendKbps: 0,
MaxRecvKbps: 0,
ReconnectIntervalS: 60,
RelaysEnabled: true,
RelayReconnectIntervalM: 10,
StartBrowser: true,
NATEnabled: true,
NATLeaseM: 60,
NATRenewalM: 30,
NATTimeoutS: 10,
RestartOnWakeup: true,
AutoUpgradeIntervalH: 12,
KeepTemporariesH: 24,
CacheIgnoredFiles: false,
ProgressUpdateIntervalS: 5,
LimitBandwidthInLan: false,
MinHomeDiskFree: Size{1, "%"},
URURL: "https://data.syncthing.net/newdata",
URInitialDelayS: 1800,
URPostInsecurely: false,
ReleasesURL: "https://upgrades.syncthing.net/meta.json",
AlwaysLocalNets: []string{},
OverwriteRemoteDevNames: false,
TempIndexMinBlocks: 10,
UnackedNotificationIDs: []string{},
WeakHashSelectionMethod: WeakHashAuto,
StunKeepaliveS: 24,
StunServers: []string{"default"},
DefaultKCPEnabled: false,
KCPCongestionControl: true,
KCPReceiveWindowSize: 128,
KCPSendWindowSize: 128,
KCPUpdateIntervalMs: 25,
KCPFastResend: false,
}
cfg := New(device1)
if diff, equal := messagediff.PrettyDiff(expected, cfg.Options); !equal {
t.Errorf("Default config differs. Diff:\n%s", diff)
}
}
func TestDeviceConfig(t *testing.T) {
for i := OldestHandledVersion; i <= CurrentVersion; i++ {
os.Remove("testdata/.stfolder")
wr, err := Load(fmt.Sprintf("testdata/v%d.xml", i), device1)
if err != nil {
t.Fatal(err)
}
_, err = os.Stat("testdata/.stfolder")
if i < 6 && err != nil {
t.Fatal(err)
} else if i >= 6 && err == nil {
t.Fatal("Unexpected file")
}
cfg := wr.cfg
expectedFolders := []FolderConfiguration{
{
ID: "test",
RawPath: "testdata",
Devices: []FolderDeviceConfiguration{{DeviceID: device1}, {DeviceID: device4}},
Type: FolderTypeSendOnly,
RescanIntervalS: 600,
Copiers: 0,
Pullers: 0,
Hashers: 0,
AutoNormalize: true,
MinDiskFree: Size{1, "%"},
MaxConflicts: -1,
Fsync: true,
Versioning: VersioningConfiguration{
Params: map[string]string{},
},
WeakHashThresholdPct: 25,
},
}
// The cachedPath will have been resolved to an absolute path,
// depending on where the tests are running. Zero it out so we don't
// fail based on that.
for i := range cfg.Folders {
cfg.Folders[i].cachedPath = ""
}
if runtime.GOOS != "windows" {
expectedFolders[0].RawPath += string(filepath.Separator)
}
expectedDevices := []DeviceConfiguration{
{
DeviceID: device1,
Name: "node one",
Addresses: []string{"tcp://a"},
Compression: protocol.CompressMetadata,
AllowedNetworks: []string{},
},
{
DeviceID: device4,
Name: "node two",
Addresses: []string{"tcp://b"},
Compression: protocol.CompressMetadata,
AllowedNetworks: []string{},
},
}
expectedDeviceIDs := []protocol.DeviceID{device1, device4}
if cfg.Version != CurrentVersion {
t.Errorf("%d: Incorrect version %d != %d", i, cfg.Version, CurrentVersion)
}
if diff, equal := messagediff.PrettyDiff(expectedFolders, cfg.Folders); !equal {
t.Errorf("%d: Incorrect Folders. Diff:\n%s", i, diff)
}
if diff, equal := messagediff.PrettyDiff(expectedDevices, cfg.Devices); !equal {
t.Errorf("%d: Incorrect Devices. Diff:\n%s", i, diff)
}
if diff, equal := messagediff.PrettyDiff(expectedDeviceIDs, cfg.Folders[0].DeviceIDs()); !equal {
t.Errorf("%d: Incorrect DeviceIDs. Diff:\n%s", i, diff)
}
}
}
func TestNoListenAddresses(t *testing.T) {
cfg, err := Load("testdata/nolistenaddress.xml", device1)
if err != nil {
t.Error(err)
}
expected := []string{""}
actual := cfg.Options().ListenAddresses
if diff, equal := messagediff.PrettyDiff(expected, actual); !equal {
t.Errorf("Unexpected ListenAddresses. Diff:\n%s", diff)
}
}
func TestOverriddenValues(t *testing.T) {
expected := OptionsConfiguration{
ListenAddresses: []string{"tcp://:23000"},
GlobalAnnServers: []string{"udp4://syncthing.nym.se:22026"},
GlobalAnnEnabled: false,
LocalAnnEnabled: false,
LocalAnnPort: 42123,
LocalAnnMCAddr: "quux:3232",
MaxSendKbps: 1234,
MaxRecvKbps: 2341,
ReconnectIntervalS: 6000,
RelaysEnabled: false,
RelayReconnectIntervalM: 20,
StartBrowser: false,
NATEnabled: false,
NATLeaseM: 90,
NATRenewalM: 15,
NATTimeoutS: 15,
RestartOnWakeup: false,
AutoUpgradeIntervalH: 24,
KeepTemporariesH: 48,
CacheIgnoredFiles: true,
ProgressUpdateIntervalS: 10,
LimitBandwidthInLan: true,
MinHomeDiskFree: Size{5.2, "%"},
URURL: "https://localhost/newdata",
URInitialDelayS: 800,
URPostInsecurely: true,
ReleasesURL: "https://localhost/releases",
AlwaysLocalNets: []string{},
OverwriteRemoteDevNames: true,
TempIndexMinBlocks: 100,
UnackedNotificationIDs: []string{
"channelNotification", // added in 17->18 migration
},
WeakHashSelectionMethod: WeakHashNever,
StunKeepaliveS: 10,
StunServers: []string{"a.stun.com", "b.stun.com"},
DefaultKCPEnabled: true,
KCPCongestionControl: false,
KCPReceiveWindowSize: 1280,
KCPSendWindowSize: 1280,
KCPUpdateIntervalMs: 1000,
KCPFastResend: true,
}
os.Unsetenv("STNOUPGRADE")
cfg, err := Load("testdata/overridenvalues.xml", device1)
if err != nil {
t.Error(err)
}
if diff, equal := messagediff.PrettyDiff(expected, cfg.Options()); !equal {
t.Errorf("Overridden config differs. Diff:\n%s", diff)
}
}
func TestDeviceAddressesDynamic(t *testing.T) {
name, _ := os.Hostname()
expected := map[protocol.DeviceID]DeviceConfiguration{
device1: {
DeviceID: device1,
Addresses: []string{"dynamic"},
AllowedNetworks: []string{},
},
device2: {
DeviceID: device2,
Addresses: []string{"dynamic"},
AllowedNetworks: []string{},
},
device3: {
DeviceID: device3,
Addresses: []string{"dynamic"},
AllowedNetworks: []string{},
},
device4: {
DeviceID: device4,
Name: name, // Set when auto created
Addresses: []string{"dynamic"},
Compression: protocol.CompressMetadata,
AllowedNetworks: []string{},
},
}
cfg, err := Load("testdata/deviceaddressesdynamic.xml", device4)
if err != nil {
t.Error(err)
}
actual := cfg.Devices()
if diff, equal := messagediff.PrettyDiff(expected, actual); !equal {
t.Errorf("Devices differ. Diff:\n%s", diff)
}
}
func TestDeviceCompression(t *testing.T) {
name, _ := os.Hostname()
expected := map[protocol.DeviceID]DeviceConfiguration{
device1: {
DeviceID: device1,
Addresses: []string{"dynamic"},
Compression: protocol.CompressMetadata,
AllowedNetworks: []string{},
},
device2: {
DeviceID: device2,
Addresses: []string{"dynamic"},
Compression: protocol.CompressMetadata,
AllowedNetworks: []string{},
},
device3: {
DeviceID: device3,
Addresses: []string{"dynamic"},
Compression: protocol.CompressNever,
AllowedNetworks: []string{},
},
device4: {
DeviceID: device4,
Name: name, // Set when auto created
Addresses: []string{"dynamic"},
Compression: protocol.CompressMetadata,
AllowedNetworks: []string{},
},
}
cfg, err := Load("testdata/devicecompression.xml", device4)
if err != nil {
t.Error(err)
}
actual := cfg.Devices()
if diff, equal := messagediff.PrettyDiff(expected, actual); !equal {
t.Errorf("Devices differ. Diff:\n%s", diff)
}
}
func TestDeviceAddressesStatic(t *testing.T) {
name, _ := os.Hostname()
expected := map[protocol.DeviceID]DeviceConfiguration{
device1: {
DeviceID: device1,
Addresses: []string{"tcp://192.0.2.1", "tcp://192.0.2.2"},
AllowedNetworks: []string{},
},
device2: {
DeviceID: device2,
Addresses: []string{"tcp://192.0.2.3:6070", "tcp://[2001:db8::42]:4242"},
AllowedNetworks: []string{},
},
device3: {
DeviceID: device3,
Addresses: []string{"tcp://[2001:db8::44]:4444", "tcp://192.0.2.4:6090"},
AllowedNetworks: []string{},
},
device4: {
DeviceID: device4,
Name: name, // Set when auto created
Addresses: []string{"dynamic"},
Compression: protocol.CompressMetadata,
AllowedNetworks: []string{},
},
}
cfg, err := Load("testdata/deviceaddressesstatic.xml", device4)
if err != nil {
t.Error(err)
}
actual := cfg.Devices()
if diff, equal := messagediff.PrettyDiff(expected, actual); !equal {
t.Errorf("Devices differ. Diff:\n%s", diff)
}
}
func TestVersioningConfig(t *testing.T) {
cfg, err := Load("testdata/versioningconfig.xml", device4)
if err != nil {
t.Error(err)
}
vc := cfg.Folders()["test"].Versioning
if vc.Type != "simple" {
t.Errorf(`vc.Type %q != "simple"`, vc.Type)
}
if l := len(vc.Params); l != 2 {
t.Errorf("len(vc.Params) %d != 2", l)
}
expected := map[string]string{
"foo": "bar",
"baz": "quux",
}
if diff, equal := messagediff.PrettyDiff(expected, vc.Params); !equal {
t.Errorf("vc.Params differ. Diff:\n%s", diff)
}
}
func TestIssue1262(t *testing.T) {
cfg, err := Load("testdata/issue-1262.xml", device4)
if err != nil {
t.Fatal(err)
}
actual := cfg.Folders()["test"].RawPath
expected := "e:/"
if runtime.GOOS == "windows" {
expected = `e:\`
}
if actual != expected {
t.Errorf("%q != %q", actual, expected)
}
}
func TestIssue1750(t *testing.T) {
cfg, err := Load("testdata/issue-1750.xml", device4)
if err != nil {
t.Fatal(err)
}
if cfg.Options().ListenAddresses[0] != "tcp://:23000" {
t.Errorf("%q != %q", cfg.Options().ListenAddresses[0], "tcp://:23000")
}
if cfg.Options().ListenAddresses[1] != "tcp://:23001" {
t.Errorf("%q != %q", cfg.Options().ListenAddresses[1], "tcp://:23001")
}
if cfg.Options().GlobalAnnServers[0] != "udp4://syncthing.nym.se:22026" {
t.Errorf("%q != %q", cfg.Options().GlobalAnnServers[0], "udp4://syncthing.nym.se:22026")
}
if cfg.Options().GlobalAnnServers[1] != "udp4://syncthing.nym.se:22027" {
t.Errorf("%q != %q", cfg.Options().GlobalAnnServers[1], "udp4://syncthing.nym.se:22027")
}
}
func TestWindowsPaths(t *testing.T) {
if runtime.GOOS != "windows" {
t.Skip("Not useful on non-Windows")
return
}
folder := FolderConfiguration{
RawPath: `e:\`,
}
expected := `\\?\e:\`
actual := folder.Path()
if actual != expected {
t.Errorf("%q != %q", actual, expected)
}
folder.RawPath = `\\192.0.2.22\network\share`
expected = folder.RawPath
actual = folder.Path()
if actual != expected {
t.Errorf("%q != %q", actual, expected)
}
folder.RawPath = `relative\path`
expected = folder.RawPath
actual = folder.Path()
if actual == expected || !strings.HasPrefix(actual, "\\\\?\\") {
t.Errorf("%q == %q, expected absolutification", actual, expected)
}
}
func TestFolderPath(t *testing.T) {
folder := FolderConfiguration{
RawPath: "~/tmp",
}
realPath := folder.Path()
if !filepath.IsAbs(realPath) {
t.Error(realPath, "should be absolute")
}
if strings.Contains(realPath, "~") {
t.Error(realPath, "should not contain ~")
}
}
func TestNewSaveLoad(t *testing.T) {
path := "testdata/temp.xml"
os.Remove(path)
exists := func(path string) bool {
_, err := os.Stat(path)
return err == nil
}
intCfg := New(device1)
cfg := Wrap(path, intCfg)
// To make the equality pass later
cfg.cfg.XMLName.Local = "configuration"
if exists(path) {
t.Error(path, "exists")
}
err := cfg.Save()
if err != nil {
t.Error(err)
}
if !exists(path) {
t.Error(path, "does not exist")
}
cfg2, err := Load(path, device1)
if err != nil {
t.Error(err)
}
if diff, equal := messagediff.PrettyDiff(cfg.RawCopy(), cfg2.RawCopy()); !equal {
t.Errorf("Configs are not equal. Diff:\n%s", diff)
}
os.Remove(path)
}
func TestPrepare(t *testing.T) {
var cfg Configuration
if cfg.Folders != nil || cfg.Devices != nil || cfg.Options.ListenAddresses != nil {
t.Error("Expected nil")
}
cfg.prepare(device1)
if cfg.Folders == nil || cfg.Devices == nil || cfg.Options.ListenAddresses == nil {
t.Error("Unexpected nil")
}
}
func TestCopy(t *testing.T) {
wrapper, err := Load("testdata/example.xml", device1)
if err != nil {
t.Fatal(err)
}
cfg := wrapper.RawCopy()
bsOrig, err := json.MarshalIndent(cfg, "", " ")
if err != nil {
t.Fatal(err)
}
copy := cfg.Copy()
cfg.Devices[0].Addresses[0] = "wrong"
cfg.Folders[0].Devices[0].DeviceID = protocol.DeviceID{0, 1, 2, 3}
cfg.Options.ListenAddresses[0] = "wrong"
cfg.GUI.APIKey = "wrong"
bsChanged, err := json.MarshalIndent(cfg, "", " ")
if err != nil {
t.Fatal(err)
}
bsCopy, err := json.MarshalIndent(copy, "", " ")
if err != nil {
t.Fatal(err)
}
if bytes.Equal(bsOrig, bsChanged) {
t.Error("Config should have changed")
}
if !bytes.Equal(bsOrig, bsCopy) {
//ioutil.WriteFile("a", bsOrig, 0644)
//ioutil.WriteFile("b", bsCopy, 0644)
t.Error("Copy should be unchanged")
}
}
func TestPullOrder(t *testing.T) {
wrapper, err := Load("testdata/pullorder.xml", device1)
if err != nil {
t.Fatal(err)
}
folders := wrapper.Folders()
expected := []struct {
name string
order PullOrder
}{
{"f1", OrderRandom}, // empty value, default
{"f2", OrderRandom}, // explicit
{"f3", OrderAlphabetic}, // explicit
{"f4", OrderRandom}, // unknown value, default
{"f5", OrderSmallestFirst}, // explicit
{"f6", OrderLargestFirst}, // explicit
{"f7", OrderOldestFirst}, // explicit
{"f8", OrderNewestFirst}, // explicit
}
// Verify values are deserialized correctly
for _, tc := range expected {
if actual := folders[tc.name].Order; actual != tc.order {
t.Errorf("Incorrect pull order for %q: %v != %v", tc.name, actual, tc.order)
}
}
// Serialize and deserialize again to verify it survives the transformation
buf := new(bytes.Buffer)
cfg := wrapper.RawCopy()
cfg.WriteXML(buf)
t.Logf("%s", buf.Bytes())
cfg, err = ReadXML(buf, device1)
if err != nil {
t.Fatal(err)
}
wrapper = Wrap("testdata/pullorder.xml", cfg)
folders = wrapper.Folders()
for _, tc := range expected {
if actual := folders[tc.name].Order; actual != tc.order {
t.Errorf("Incorrect pull order for %q: %v != %v", tc.name, actual, tc.order)
}
}
}
func TestLargeRescanInterval(t *testing.T) {
wrapper, err := Load("testdata/largeinterval.xml", device1)
if err != nil {
t.Fatal(err)
}
if wrapper.Folders()["l1"].RescanIntervalS != MaxRescanIntervalS {
t.Error("too large rescan interval should be maxed out")
}
if wrapper.Folders()["l2"].RescanIntervalS != 0 {
t.Error("negative rescan interval should become zero")
}
}
func TestGUIConfigURL(t *testing.T) {
testcases := [][2]string{
{"192.0.2.42:8080", "http://192.0.2.42:8080/"},
{":8080", "http://127.0.0.1:8080/"},
{"0.0.0.0:8080", "http://127.0.0.1:8080/"},
{"127.0.0.1:8080", "http://127.0.0.1:8080/"},
{"127.0.0.2:8080", "http://127.0.0.2:8080/"},
{"[::]:8080", "http://[::1]:8080/"},
{"[2001::42]:8080", "http://[2001::42]:8080/"},
}
for _, tc := range testcases {
c := GUIConfiguration{
RawAddress: tc[0],
}
u := c.URL()
if u != tc[1] {
t.Errorf("Incorrect URL %s != %s for addr %s", u, tc[1], tc[0])
}
}
}
func TestDuplicateDevices(t *testing.T) {
// Duplicate devices should be removed
wrapper, err := Load("testdata/dupdevices.xml", device1)
if err != nil {
t.Fatal(err)
}
if l := len(wrapper.RawCopy().Devices); l != 3 {
t.Errorf("Incorrect number of devices, %d != 3", l)
}
f := wrapper.Folders()["f2"]
if l := len(f.Devices); l != 2 {
t.Errorf("Incorrect number of folder devices, %d != 2", l)
}
}
func TestDuplicateFolders(t *testing.T) {
// Duplicate folders are a loading error
_, err := Load("testdata/dupfolders.xml", device1)
if err == nil || !strings.HasPrefix(err.Error(), "duplicate folder ID") {
t.Fatal(`Expected error to mention "duplicate folder ID":`, err)
}
}
func TestEmptyFolderPaths(t *testing.T) {
// Empty folder paths are allowed at the loading stage, and should not
// get messed up by the prepare steps (e.g., become the current dir or
// get a slash added so that it becomes the root directory or similar).
wrapper, err := Load("testdata/nopath.xml", device1)
if err != nil {
t.Fatal(err)
}
folder := wrapper.Folders()["f1"]
if folder.Path() != "" {
t.Errorf("Expected %q to be empty", folder.Path())
}
}
func TestV14ListenAddressesMigration(t *testing.T) {
tcs := [][3][]string{
// Default listen plus default relays is now "default"
{
{"tcp://0.0.0.0:22000"},
{"dynamic+https://relays.syncthing.net/endpoint"},
{"default"},
},
// Default listen address without any relay addresses gets converted
// to just the listen address. It's easier this way, and frankly the
// user has gone to some trouble to get the empty string in the
// config to start with...
{
{"tcp://0.0.0.0:22000"}, // old listen addrs
{""}, // old relay addrs
{"tcp://0.0.0.0:22000"}, // new listen addrs
},
// Default listen plus non-default relays gets copied verbatim
{
{"tcp://0.0.0.0:22000"},
{"dynamic+https://other.example.com"},
{"tcp://0.0.0.0:22000", "dynamic+https://other.example.com"},
},
// Non-default listen plus default relays gets copied verbatim
{
{"tcp://1.2.3.4:22000"},
{"dynamic+https://relays.syncthing.net/endpoint"},
{"tcp://1.2.3.4:22000", "dynamic+https://relays.syncthing.net/endpoint"},
},
// Default stuff gets sucked into "default", the rest gets copied
{
{"tcp://0.0.0.0:22000", "tcp://1.2.3.4:22000"},
{"dynamic+https://relays.syncthing.net/endpoint", "relay://other.example.com"},
{"default", "tcp://1.2.3.4:22000", "relay://other.example.com"},
},
}
for _, tc := range tcs {
cfg := Configuration{
Version: 13,
Options: OptionsConfiguration{
ListenAddresses: tc[0],
DeprecatedRelayServers: tc[1],
},
}
convertV13V14(&cfg)
if cfg.Version != 14 {
t.Error("Configuration was not converted")
}
sort.Strings(tc[2])
if !reflect.DeepEqual(cfg.Options.ListenAddresses, tc[2]) {
t.Errorf("Migration error; actual %#v != expected %#v", cfg.Options.ListenAddresses, tc[2])
}
}
}
func TestIgnoredDevices(t *testing.T) {
// Verify that ignored devices that are also present in the
// configuration are not in fact ignored.
wrapper, err := Load("testdata/ignoreddevices.xml", device1)
if err != nil {
t.Fatal(err)
}
if wrapper.IgnoredDevice(device1) {
t.Errorf("Device %v should not be ignored", device1)
}
if !wrapper.IgnoredDevice(device3) {
t.Errorf("Device %v should be ignored", device3)
}
}
func TestGetDevice(t *testing.T) {
// Verify that the Device() call does the right thing
wrapper, err := Load("testdata/ignoreddevices.xml", device1)
if err != nil {
t.Fatal(err)
}
// device1 is mentioned in the config
device, ok := wrapper.Device(device1)
if !ok {
t.Error(device1, "should exist")
}
if device.DeviceID != device1 {
t.Error("Should have returned", device1, "not", device.DeviceID)
}
// device3 is not
device, ok = wrapper.Device(device3)
if ok {
t.Error(device3, "should not exist")
}
if device.DeviceID == device3 {
t.Error("Should not returned ID", device3)
}
}
func TestSharesRemovedOnDeviceRemoval(t *testing.T) {
wrapper, err := Load("testdata/example.xml", device1)
if err != nil {
t.Errorf("Failed: %s", err)
}
raw := wrapper.RawCopy()
raw.Devices = raw.Devices[:len(raw.Devices)-1]
if len(raw.Folders[0].Devices) <= len(raw.Devices) {
t.Error("Should have less devices")
}
err = wrapper.Replace(raw)
if err != nil {
t.Errorf("Failed: %s", err)
}
raw = wrapper.RawCopy()
if len(raw.Folders[0].Devices) > len(raw.Devices) {
t.Error("Unexpected extra device")
}
}