419 lines
9.4 KiB
Go
419 lines
9.4 KiB
Go
// Copyright (C) 2014 The Protocol Authors.
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package protocol
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import (
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"encoding/binary"
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"encoding/hex"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"reflect"
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"strings"
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"testing"
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"testing/quick"
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"time"
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"github.com/calmh/xdr"
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)
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var (
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c0ID = NewDeviceID([]byte{1})
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c1ID = NewDeviceID([]byte{2})
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quickCfg = &quick.Config{}
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)
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func TestHeaderEncodeDecode(t *testing.T) {
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f := func(ver, id, typ int) bool {
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ver = int(uint(ver) % 16)
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id = int(uint(id) % 4096)
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typ = int(uint(typ) % 256)
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h0 := header{version: ver, msgID: id, msgType: typ}
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h1 := decodeHeader(encodeHeader(h0))
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return h0 == h1
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}
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if err := quick.Check(f, nil); err != nil {
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t.Error(err)
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}
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}
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func TestHeaderMarshalUnmarshal(t *testing.T) {
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f := func(ver, id, typ int) bool {
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ver = int(uint(ver) % 16)
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id = int(uint(id) % 4096)
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typ = int(uint(typ) % 256)
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buf := make([]byte, 4)
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h0 := header{version: ver, msgID: id, msgType: typ}
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h0.MarshalXDRInto(&xdr.Marshaller{Data: buf})
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var h1 header
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h1.UnmarshalXDRFrom(&xdr.Unmarshaller{Data: buf})
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return h0 == h1
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}
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if err := quick.Check(f, nil); err != nil {
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t.Error(err)
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}
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}
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func TestHeaderLayout(t *testing.T) {
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var e, a uint32
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// Version are the first four bits
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e = 0xf0000000
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a = encodeHeader(header{version: 0xf})
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if a != e {
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t.Errorf("Header layout incorrect; %08x != %08x", a, e)
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}
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// Message ID are the following 12 bits
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e = 0x0fff0000
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a = encodeHeader(header{msgID: 0xfff})
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if a != e {
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t.Errorf("Header layout incorrect; %08x != %08x", a, e)
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}
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// Type are the last 8 bits before reserved
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e = 0x0000ff00
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a = encodeHeader(header{msgType: 0xff})
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if a != e {
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t.Errorf("Header layout incorrect; %08x != %08x", a, e)
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}
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}
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func TestPing(t *testing.T) {
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ar, aw := io.Pipe()
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br, bw := io.Pipe()
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c0 := NewConnection(c0ID, ar, bw, newTestModel(), "name", CompressAlways).(wireFormatConnection).Connection.(*rawConnection)
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c0.Start()
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c1 := NewConnection(c1ID, br, aw, newTestModel(), "name", CompressAlways).(wireFormatConnection).Connection.(*rawConnection)
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c1.Start()
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c0.ClusterConfig(ClusterConfigMessage{})
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c1.ClusterConfig(ClusterConfigMessage{})
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if ok := c0.ping(); !ok {
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t.Error("c0 ping failed")
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}
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if ok := c1.ping(); !ok {
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t.Error("c1 ping failed")
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}
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}
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func TestVersionErr(t *testing.T) {
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m0 := newTestModel()
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m1 := newTestModel()
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ar, aw := io.Pipe()
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br, bw := io.Pipe()
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c0 := NewConnection(c0ID, ar, bw, m0, "name", CompressAlways).(wireFormatConnection).Connection.(*rawConnection)
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c0.Start()
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c1 := NewConnection(c1ID, br, aw, m1, "name", CompressAlways)
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c1.Start()
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c0.ClusterConfig(ClusterConfigMessage{})
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c1.ClusterConfig(ClusterConfigMessage{})
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timeoutWriteHeader(c0.cw, header{
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version: 2, // higher than supported
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msgID: 0,
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msgType: messageTypeIndex,
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})
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if err := m1.closedError(); err == nil || !strings.Contains(err.Error(), "unknown protocol version") {
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t.Error("Connection should close due to unknown version, not", err)
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}
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}
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func TestTypeErr(t *testing.T) {
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m0 := newTestModel()
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m1 := newTestModel()
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ar, aw := io.Pipe()
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br, bw := io.Pipe()
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c0 := NewConnection(c0ID, ar, bw, m0, "name", CompressAlways).(wireFormatConnection).Connection.(*rawConnection)
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c0.Start()
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c1 := NewConnection(c1ID, br, aw, m1, "name", CompressAlways)
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c1.Start()
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c0.ClusterConfig(ClusterConfigMessage{})
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c1.ClusterConfig(ClusterConfigMessage{})
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timeoutWriteHeader(c0.cw, header{
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version: 0,
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msgID: 0,
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msgType: 42, // unknown type
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})
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if err := m1.closedError(); err == nil || !strings.Contains(err.Error(), "unknown message type") {
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t.Error("Connection should close due to unknown message type, not", err)
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}
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}
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func TestClose(t *testing.T) {
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m0 := newTestModel()
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m1 := newTestModel()
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ar, aw := io.Pipe()
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br, bw := io.Pipe()
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c0 := NewConnection(c0ID, ar, bw, m0, "name", CompressAlways).(wireFormatConnection).Connection.(*rawConnection)
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c0.Start()
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c1 := NewConnection(c1ID, br, aw, m1, "name", CompressAlways)
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c1.Start()
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c0.ClusterConfig(ClusterConfigMessage{})
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c1.ClusterConfig(ClusterConfigMessage{})
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c0.close(errors.New("manual close"))
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<-c0.closed
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if err := m0.closedError(); err == nil || !strings.Contains(err.Error(), "manual close") {
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t.Fatal("Connection should be closed")
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}
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// None of these should panic, some should return an error
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if c0.ping() {
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t.Error("Ping should not return true")
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}
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c0.Index("default", nil, 0, nil)
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c0.Index("default", nil, 0, nil)
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if _, err := c0.Request("default", "foo", 0, 0, nil, 0, nil); err == nil {
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t.Error("Request should return an error")
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}
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}
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func TestElementSizeExceededNested(t *testing.T) {
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m := ClusterConfigMessage{
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ClientName: "longstringlongstringlongstringinglongstringlongstringlonlongstringlongstringlon",
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}
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_, err := m.MarshalXDR()
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if err == nil {
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t.Errorf("ID length %d > max 64, but no error", len(m.Folders[0].ID))
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}
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}
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func TestMarshalIndexMessage(t *testing.T) {
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if testing.Short() {
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quickCfg.MaxCount = 10
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}
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f := func(m1 IndexMessage) bool {
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if len(m1.Options) == 0 {
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m1.Options = nil
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}
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if len(m1.Files) == 0 {
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m1.Files = nil
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}
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for i, f := range m1.Files {
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m1.Files[i].CachedSize = 0
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if len(f.Blocks) == 0 {
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m1.Files[i].Blocks = nil
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} else {
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for j := range f.Blocks {
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f.Blocks[j].Offset = 0
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if len(f.Blocks[j].Hash) == 0 {
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f.Blocks[j].Hash = nil
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}
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}
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}
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}
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return testMarshal(t, "index", &m1, &IndexMessage{})
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}
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if err := quick.Check(f, quickCfg); err != nil {
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t.Error(err)
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}
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}
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func TestMarshalRequestMessage(t *testing.T) {
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if testing.Short() {
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quickCfg.MaxCount = 10
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}
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f := func(m1 RequestMessage) bool {
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if len(m1.Options) == 0 {
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m1.Options = nil
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}
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if len(m1.Hash) == 0 {
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m1.Hash = nil
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}
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return testMarshal(t, "request", &m1, &RequestMessage{})
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}
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if err := quick.Check(f, quickCfg); err != nil {
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t.Error(err)
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}
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}
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func TestMarshalResponseMessage(t *testing.T) {
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if testing.Short() {
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quickCfg.MaxCount = 10
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}
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f := func(m1 ResponseMessage) bool {
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if len(m1.Data) == 0 {
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m1.Data = nil
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}
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return testMarshal(t, "response", &m1, &ResponseMessage{})
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}
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if err := quick.Check(f, quickCfg); err != nil {
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t.Error(err)
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}
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}
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func TestMarshalClusterConfigMessage(t *testing.T) {
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if testing.Short() {
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quickCfg.MaxCount = 10
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}
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f := func(m1 ClusterConfigMessage) bool {
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if len(m1.Options) == 0 {
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m1.Options = nil
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}
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if len(m1.Folders) == 0 {
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m1.Folders = nil
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}
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for i := range m1.Folders {
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if len(m1.Folders[i].Devices) == 0 {
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m1.Folders[i].Devices = nil
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}
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if len(m1.Folders[i].Options) == 0 {
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m1.Folders[i].Options = nil
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}
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}
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return testMarshal(t, "clusterconfig", &m1, &ClusterConfigMessage{})
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}
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if err := quick.Check(f, quickCfg); err != nil {
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t.Error(err)
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}
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}
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func TestMarshalCloseMessage(t *testing.T) {
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if testing.Short() {
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quickCfg.MaxCount = 10
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}
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f := func(m1 CloseMessage) bool {
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return testMarshal(t, "close", &m1, &CloseMessage{})
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}
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if err := quick.Check(f, quickCfg); err != nil {
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t.Error(err)
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}
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}
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type message interface {
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MarshalXDR() ([]byte, error)
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UnmarshalXDR([]byte) error
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}
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func testMarshal(t *testing.T, prefix string, m1, m2 message) bool {
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failed := func(bc []byte) {
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bs, _ := json.MarshalIndent(m1, "", " ")
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ioutil.WriteFile(prefix+"-1.txt", bs, 0644)
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bs, _ = json.MarshalIndent(m2, "", " ")
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ioutil.WriteFile(prefix+"-2.txt", bs, 0644)
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if len(bc) > 0 {
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f, _ := os.Create(prefix + "-data.txt")
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fmt.Fprint(f, hex.Dump(bc))
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f.Close()
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}
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}
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buf, err := m1.MarshalXDR()
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if err != nil && strings.Contains(err.Error(), "exceeds size") {
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return true
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}
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if err != nil {
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failed(nil)
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t.Fatal(err)
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}
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err = m2.UnmarshalXDR(buf)
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if err != nil {
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failed(buf)
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t.Fatal(err)
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}
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ok := reflect.DeepEqual(m1, m2)
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if !ok {
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failed(buf)
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}
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return ok
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}
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func timeoutWriteHeader(w io.Writer, hdr header) {
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// This tries to write a message header to w, but times out after a while.
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// This is useful because in testing, with a PipeWriter, it will block
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// forever if the other side isn't reading any more. On the other hand we
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// can't just "go" it into the background, because if the other side is
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// still there we should wait for the write to complete. Yay.
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var buf [8]byte // header and message length
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binary.BigEndian.PutUint32(buf[:], encodeHeader(hdr))
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binary.BigEndian.PutUint32(buf[4:], 0) // zero message length, explicitly
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done := make(chan struct{})
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go func() {
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w.Write(buf[:])
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close(done)
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}()
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select {
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case <-done:
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case <-time.After(250 * time.Millisecond):
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}
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}
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func TestFileInfoSize(t *testing.T) {
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fi := FileInfo{
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Blocks: []BlockInfo{
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{Size: 42},
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{Offset: 42, Size: 23},
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{Offset: 42 + 23, Size: 34},
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},
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}
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size := fi.Size()
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want := int64(42 + 23 + 34)
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if size != want {
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t.Errorf("Incorrect size reported, got %d, want %d", size, want)
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}
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size = fi.Size() // Cached, this time
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if size != want {
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t.Errorf("Incorrect cached size reported, got %d, want %d", size, want)
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}
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fi.CachedSize = 8
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want = 8
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size = fi.Size() // Ensure it came from the cache
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if size != want {
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t.Errorf("Incorrect cached size reported, got %d, want %d", size, want)
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}
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fi.CachedSize = 0
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fi.Flags = FlagDirectory
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want = 128
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size = fi.Size() // Directories are 128 bytes large
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if size != want {
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t.Errorf("Incorrect cached size reported, got %d, want %d", size, want)
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}
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fi.CachedSize = 0
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fi.Flags = FlagDeleted
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want = 128
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size = fi.Size() // Also deleted files
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if size != want {
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t.Errorf("Incorrect cached size reported, got %d, want %d", size, want)
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}
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}
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