syncthing/protocol/protocol_test.go

384 lines
8.3 KiB
Go

// Copyright (C) 2014 Jakob Borg and Contributors (see the CONTRIBUTORS file).
// All rights reserved. Use of this source code is governed by an MIT-style
// license that can be found in the LICENSE file.
package protocol
import (
"bytes"
"encoding/hex"
"encoding/json"
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"reflect"
"testing"
"testing/quick"
"github.com/calmh/xdr"
)
var (
c0ID = NewNodeID([]byte{1})
c1ID = NewNodeID([]byte{2})
)
func TestHeaderFunctions(t *testing.T) {
f := func(ver, id, typ int) bool {
ver = int(uint(ver) % 16)
id = int(uint(id) % 4096)
typ = int(uint(typ) % 256)
h0 := header{version: ver, msgID: id, msgType: typ}
h1 := decodeHeader(encodeHeader(h0))
return h0 == h1
}
if err := quick.Check(f, nil); err != nil {
t.Error(err)
}
}
func TestHeaderLayout(t *testing.T) {
var e, a uint32
// Version are the first four bits
e = 0xf0000000
a = encodeHeader(header{version: 0xf})
if a != e {
t.Errorf("Header layout incorrect; %08x != %08x", a, e)
}
// Message ID are the following 12 bits
e = 0x0fff0000
a = encodeHeader(header{msgID: 0xfff})
if a != e {
t.Errorf("Header layout incorrect; %08x != %08x", a, e)
}
// Type are the last 8 bits before reserved
e = 0x0000ff00
a = encodeHeader(header{msgType: 0xff})
if a != e {
t.Errorf("Header layout incorrect; %08x != %08x", a, e)
}
}
func TestPing(t *testing.T) {
ar, aw := io.Pipe()
br, bw := io.Pipe()
c0 := NewConnection(c0ID, ar, bw, nil, "name", true).(wireFormatConnection).next.(*rawConnection)
c1 := NewConnection(c1ID, br, aw, nil, "name", true).(wireFormatConnection).next.(*rawConnection)
if ok := c0.ping(); !ok {
t.Error("c0 ping failed")
}
if ok := c1.ping(); !ok {
t.Error("c1 ping failed")
}
}
func TestPingErr(t *testing.T) {
e := errors.New("something broke")
for i := 0; i < 16; i++ {
for j := 0; j < 16; j++ {
m0 := newTestModel()
m1 := newTestModel()
ar, aw := io.Pipe()
br, bw := io.Pipe()
eaw := &ErrPipe{PipeWriter: *aw, max: i, err: e}
ebw := &ErrPipe{PipeWriter: *bw, max: j, err: e}
c0 := NewConnection(c0ID, ar, ebw, m0, "name", true).(wireFormatConnection).next.(*rawConnection)
NewConnection(c1ID, br, eaw, m1, "name", true)
res := c0.ping()
if (i < 8 || j < 8) && res {
t.Errorf("Unexpected ping success; i=%d, j=%d", i, j)
} else if (i >= 12 && j >= 12) && !res {
t.Errorf("Unexpected ping fail; i=%d, j=%d", i, j)
}
}
}
}
// func TestRequestResponseErr(t *testing.T) {
// e := errors.New("something broke")
// var pass bool
// for i := 0; i < 48; i++ {
// for j := 0; j < 38; j++ {
// m0 := newTestModel()
// m0.data = []byte("response data")
// m1 := newTestModel()
// ar, aw := io.Pipe()
// br, bw := io.Pipe()
// eaw := &ErrPipe{PipeWriter: *aw, max: i, err: e}
// ebw := &ErrPipe{PipeWriter: *bw, max: j, err: e}
// NewConnection(c0ID, ar, ebw, m0, nil)
// c1 := NewConnection(c1ID, br, eaw, m1, nil).(wireFormatConnection).next.(*rawConnection)
// d, err := c1.Request("default", "tn", 1234, 5678)
// if err == e || err == ErrClosed {
// t.Logf("Error at %d+%d bytes", i, j)
// if !m1.isClosed() {
// t.Fatal("c1 not closed")
// }
// if !m0.isClosed() {
// t.Fatal("c0 not closed")
// }
// continue
// }
// if err != nil {
// t.Fatal(err)
// }
// if string(d) != "response data" {
// t.Fatalf("Incorrect response data %q", string(d))
// }
// if m0.repo != "default" {
// t.Fatalf("Incorrect repo %q", m0.repo)
// }
// if m0.name != "tn" {
// t.Fatalf("Incorrect name %q", m0.name)
// }
// if m0.offset != 1234 {
// t.Fatalf("Incorrect offset %d", m0.offset)
// }
// if m0.size != 5678 {
// t.Fatalf("Incorrect size %d", m0.size)
// }
// t.Logf("Pass at %d+%d bytes", i, j)
// pass = true
// }
// }
// if !pass {
// t.Fatal("Never passed")
// }
// }
func TestVersionErr(t *testing.T) {
m0 := newTestModel()
m1 := newTestModel()
ar, aw := io.Pipe()
br, bw := io.Pipe()
c0 := NewConnection(c0ID, ar, bw, m0, "name", true).(wireFormatConnection).next.(*rawConnection)
NewConnection(c1ID, br, aw, m1, "name", true)
w := xdr.NewWriter(c0.cw)
w.WriteUint32(encodeHeader(header{
version: 2,
msgID: 0,
msgType: 0,
}))
w.WriteUint32(0)
if !m1.isClosed() {
t.Error("Connection should close due to unknown version")
}
}
func TestTypeErr(t *testing.T) {
m0 := newTestModel()
m1 := newTestModel()
ar, aw := io.Pipe()
br, bw := io.Pipe()
c0 := NewConnection(c0ID, ar, bw, m0, "name", true).(wireFormatConnection).next.(*rawConnection)
NewConnection(c1ID, br, aw, m1, "name", true)
w := xdr.NewWriter(c0.cw)
w.WriteUint32(encodeHeader(header{
version: 0,
msgID: 0,
msgType: 42,
}))
w.WriteUint32(0)
if !m1.isClosed() {
t.Error("Connection should close due to unknown message type")
}
}
func TestClose(t *testing.T) {
m0 := newTestModel()
m1 := newTestModel()
ar, aw := io.Pipe()
br, bw := io.Pipe()
c0 := NewConnection(c0ID, ar, bw, m0, "name", true).(wireFormatConnection).next.(*rawConnection)
NewConnection(c1ID, br, aw, m1, "name", true)
c0.close(nil)
<-c0.closed
if !m0.isClosed() {
t.Fatal("Connection should be closed")
}
// None of these should panic, some should return an error
if c0.ping() {
t.Error("Ping should not return true")
}
c0.Index("default", nil)
c0.Index("default", nil)
if _, err := c0.Request("default", "foo", 0, 0); err == nil {
t.Error("Request should return an error")
}
}
func TestElementSizeExceededNested(t *testing.T) {
m := ClusterConfigMessage{
Repositories: []Repository{
{ID: "longstringlongstringlongstringinglongstringlongstringlonlongstringlongstringlon"},
},
}
_, err := m.EncodeXDR(ioutil.Discard)
if err == nil {
t.Errorf("ID length %d > max 64, but no error", len(m.Repositories[0].ID))
}
}
func TestMarshalIndexMessage(t *testing.T) {
var quickCfg = &quick.Config{MaxCountScale: 10}
if testing.Short() {
quickCfg = nil
}
f := func(m1 IndexMessage) bool {
for _, f := range m1.Files {
for i := range f.Blocks {
f.Blocks[i].Offset = 0
if len(f.Blocks[i].Hash) == 0 {
f.Blocks[i].Hash = nil
}
}
}
return testMarshal(t, "index", &m1, &IndexMessage{})
}
if err := quick.Check(f, quickCfg); err != nil {
t.Error(err)
}
}
func TestMarshalRequestMessage(t *testing.T) {
var quickCfg = &quick.Config{MaxCountScale: 10}
if testing.Short() {
quickCfg = nil
}
f := func(m1 RequestMessage) bool {
return testMarshal(t, "request", &m1, &RequestMessage{})
}
if err := quick.Check(f, quickCfg); err != nil {
t.Error(err)
}
}
func TestMarshalResponseMessage(t *testing.T) {
var quickCfg = &quick.Config{MaxCountScale: 10}
if testing.Short() {
quickCfg = nil
}
f := func(m1 ResponseMessage) bool {
if len(m1.Data) == 0 {
m1.Data = nil
}
return testMarshal(t, "response", &m1, &ResponseMessage{})
}
if err := quick.Check(f, quickCfg); err != nil {
t.Error(err)
}
}
func TestMarshalClusterConfigMessage(t *testing.T) {
var quickCfg = &quick.Config{MaxCountScale: 10}
if testing.Short() {
quickCfg = nil
}
f := func(m1 ClusterConfigMessage) bool {
return testMarshal(t, "clusterconfig", &m1, &ClusterConfigMessage{})
}
if err := quick.Check(f, quickCfg); err != nil {
t.Error(err)
}
}
func TestMarshalCloseMessage(t *testing.T) {
var quickCfg = &quick.Config{MaxCountScale: 10}
if testing.Short() {
quickCfg = nil
}
f := func(m1 CloseMessage) bool {
return testMarshal(t, "close", &m1, &CloseMessage{})
}
if err := quick.Check(f, quickCfg); err != nil {
t.Error(err)
}
}
type message interface {
EncodeXDR(io.Writer) (int, error)
DecodeXDR(io.Reader) error
}
func testMarshal(t *testing.T, prefix string, m1, m2 message) bool {
var buf bytes.Buffer
failed := func(bc []byte) {
bs, _ := json.MarshalIndent(m1, "", " ")
ioutil.WriteFile(prefix+"-1.txt", bs, 0644)
bs, _ = json.MarshalIndent(m2, "", " ")
ioutil.WriteFile(prefix+"-2.txt", bs, 0644)
if len(bc) > 0 {
f, _ := os.Create(prefix + "-data.txt")
fmt.Fprint(f, hex.Dump(bc))
f.Close()
}
}
_, err := m1.EncodeXDR(&buf)
if err == xdr.ErrElementSizeExceeded {
return true
}
if err != nil {
failed(nil)
t.Fatal(err)
}
bc := make([]byte, len(buf.Bytes()))
copy(bc, buf.Bytes())
err = m2.DecodeXDR(&buf)
if err != nil {
failed(bc)
t.Fatal(err)
}
ok := reflect.DeepEqual(m1, m2)
if !ok {
failed(bc)
}
return ok
}