Golang proto.Unmarshal函数代码示例

func TestOldUnoM(t *testing.T) {
	popr := math_rand.New(math_rand.NewSource(time.Now().UnixNano()))
	older := NewPopulatedOldUnoM(popr, true)
	// need optional field to be always initialized, to check it's lost in this test
	older.Field1 = proto.String(randStringUnrecognized(popr))
	data1, err := proto.Marshal(older)
	if err != nil {
		panic(err)
	}

	newer := &UnoM{}
	if err := proto.Unmarshal(data1, newer); err != nil {
		panic(err)
	}
	data2, err := proto.Marshal(newer)
	if err != nil {
		panic(err)
	}

	older2 := &OldUnoM{}
	if err := proto.Unmarshal(data2, older2); err != nil {
		panic(err)
	}

	// check that Field1 is lost
	if older2.Field1 != nil {
		t.Fatalf("field must be lost, but it's not, older: %#v, older2: %#v", older, older2)
	}

	// now restore Field1 and messages should be equal now
	older2.Field1 = older.Field1
	if err := older.VerboseEqual(older2); err != nil {
		t.Fatalf("%#v !VerboseProto %#v, since %v", older, older2, err)
	}
}

func TestFloatingPointProto(t *testing.T) {
	seed := time.Now().UnixNano()
	popr := math_rand.New(math_rand.NewSource(seed))
	p := NewPopulatedFloatingPoint(popr, false)
	data, err := github_com_gogo_protobuf_proto.Marshal(p)
	if err != nil {
		t.Fatalf("seed = %d, err = %v", seed, err)
	}
	msg := &FloatingPoint{}
	if err := github_com_gogo_protobuf_proto.Unmarshal(data, msg); err != nil {
		t.Fatalf("seed = %d, err = %v", seed, err)
	}
	littlefuzz := make([]byte, len(data))
	copy(littlefuzz, data)
	for i := range data {
		data[i] = byte(popr.Intn(256))
	}
	if err := p.VerboseEqual(msg); err != nil {
		t.Fatalf("seed = %d, %#v !VerboseProto %#v, since %v", seed, msg, p, err)
	}
	if !p.Equal(msg) {
		t.Fatalf("seed = %d, %#v !Proto %#v", seed, msg, p)
	}
	if len(littlefuzz) > 0 {
		fuzzamount := 100
		for i := 0; i < fuzzamount; i++ {
			littlefuzz[popr.Intn(len(littlefuzz))] = byte(popr.Intn(256))
			littlefuzz = append(littlefuzz, byte(popr.Intn(256)))
		}
		// shouldn't panic
		_ = github_com_gogo_protobuf_proto.Unmarshal(littlefuzz, msg)
	}
}

func TestFuzzUnrecognized(t *testing.T) {
	msg := &Nil{}
	input := []byte{0x8, 0xaf, 0x81, 0xc9, 0xb3, 0x97, 0xd1, 0xb5, 0xc2, 0x4f, 0x1a, 0x4a, 0x52, 0x48, 0x4e, 0x44, 0x65, 0x51, 0x4b, 0x46, 0x44, 0x33, 0x5a, 0x44, 0x72, 0x38, 0x58, 0x4c, 0x58, 0x70, 0x59, 0x45, 0x71, 0x45, 0x4f, 0x6d, 0x45, 0x4d, 0x54, 0x59, 0x4c, 0x6b, 0x55, 0x7a, 0x6f, 0x6b, 0x5a, 0x69, 0x56, 0x64, 0x46, 0x45, 0x56, 0x4d, 0x70, 0x6a, 0x39, 0x7a, 0x4b, 0x43, 0x4d, 0x6d, 0x76, 0x63, 0x46, 0x4f, 0x31, 0x4a, 0x5a, 0x6b, 0x66, 0x4a, 0x75, 0x51, 0x38, 0x54, 0x54, 0x30, 0x53, 0x61, 0x36, 0x6e, 0x4f, 0x6b, 0x35, 0x54, 0x95, 0x0, 0x0, 0x0, 0x0, 0x12, 0x38, 0x52, 0x36, 0x66, 0x76, 0x41, 0x74, 0x73, 0x7a, 0x39, 0x43, 0x6a, 0x4f, 0x64, 0x59, 0x77, 0x33, 0x30, 0x36, 0x58, 0x75, 0x65, 0x46, 0x4b, 0x46, 0x55, 0x56, 0x71, 0x6d, 0x49, 0x73, 0x4a, 0x4b, 0x78, 0x76, 0x41, 0x65, 0x42, 0x61, 0x5a, 0x30, 0x41, 0x37, 0x45, 0x76, 0x72, 0x31, 0x30, 0x4e, 0x78, 0x6d, 0x33, 0x63, 0x65, 0x66, 0x6b, 0x30}
	if err := proto.Unmarshal(input, msg); err == nil {
		t.Fatal("expected error")
	}
}

func DisabledTestFuzzFieldOrder(t *testing.T) {
	msg := &NinOptStruct{}
	input := []byte{0x52, 0x57, 0x52, 0x6a, 0x33, 0x56, 0x43, 0x76, 0x32, 0x54, 0x49, 0x4a, 0x55, 0x66, 0x39, 0x52, 0x32, 0x32, 0x73, 0x69, 0x4f, 0x67, 0x66, 0x79, 0x4b, 0x79, 0x5a, 0x55, 0x42, 0x53, 0x38, 0x68, 0x6c, 0x46, 0x79, 0x6b, 0x54, 0x43, 0x63, 0x66, 0x30, 0x6a, 0x33, 0x35, 0x33, 0x7a, 0x41, 0x66, 0x68, 0x57, 0x61, 0x78, 0x51, 0x37, 0x76, 0x52, 0x78, 0x34, 0x56, 0x43, 0x54, 0x31, 0x73, 0x6a, 0x77, 0x63, 0x45, 0x62, 0x62, 0x67, 0x34, 0x6f, 0x64, 0x35, 0x6c, 0x41, 0x45, 0x50, 0x64, 0x6f, 0x46, 0x38, 0x41, 0x4b, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30}
	if err := proto.Unmarshal(input, msg); err != nil {
		t.Fatal(err)
	}
}

func TestGetExtensionStability(t *testing.T) {
	check := func(m *pb.MyMessage) bool {
		ext1, err := proto.GetExtension(m, pb.E_Ext_More)
		if err != nil {
			t.Fatalf("GetExtension() failed: %s", err)
		}
		ext2, err := proto.GetExtension(m, pb.E_Ext_More)
		if err != nil {
			t.Fatalf("GetExtension() failed: %s", err)
		}
		return ext1 == ext2
	}
	msg := &pb.MyMessage{Count: proto.Int32(4)}
	ext0 := &pb.Ext{}
	if err := proto.SetExtension(msg, pb.E_Ext_More, ext0); err != nil {
		t.Fatalf("Could not set ext1: %s", ext0)
	}
	if !check(msg) {
		t.Errorf("GetExtension() not stable before marshaling")
	}
	bb, err := proto.Marshal(msg)
	if err != nil {
		t.Fatalf("Marshal() failed: %s", err)
	}
	msg1 := &pb.MyMessage{}
	err = proto.Unmarshal(bb, msg1)
	if err != nil {
		t.Fatalf("Unmarshal() failed: %s", err)
	}
	if !check(msg1) {
		t.Errorf("GetExtension() not stable after unmarshaling")
	}
}

func TestRoundTripProto3(t *testing.T) {
	m := &pb.Message{
		Name:         "David",          // (2 | 1<<3): 0x0a 0x05 "David"
		Hilarity:     pb.Message_PUNS,  // (0 | 2<<3): 0x10 0x01
		HeightInCm:   178,              // (0 | 3<<3): 0x18 0xb2 0x01
		Data:         []byte("roboto"), // (2 | 4<<3): 0x20 0x06 "roboto"
		ResultCount:  47,               // (0 | 7<<3): 0x38 0x2f
		TrueScotsman: true,             // (0 | 8<<3): 0x40 0x01
		Score:        8.1,              // (5 | 9<<3): 0x4d <8.1>

		Key: []uint64{1, 0xdeadbeef},
		Nested: &pb.Nested{
			Bunny: "Monty",
		},
	}
	t.Logf(" m: %v", m)

	b, err := proto.Marshal(m)
	if err != nil {
		t.Fatalf("proto.Marshal: %v", err)
	}
	t.Logf(" b: %q", b)

	m2 := new(pb.Message)
	if err := proto.Unmarshal(b, m2); err != nil {
		t.Fatalf("proto.Unmarshal: %v", err)
	}
	t.Logf("m2: %v", m2)

	if !proto.Equal(m, m2) {
		t.Errorf("proto.Equal returned false:\n m: %v\nm2: %v", m, m2)
	}
}

func Generate(req *plugin.CodeGeneratorRequest) *plugin.CodeGeneratorResponse {
	// Begin by allocating a generator. The request and response structures are stored there
	// so we can do error handling easily - the response structure contains the field to
	// report failure.
	g := generator.New()
	g.Request = req

	g.CommandLineParameters(g.Request.GetParameter())

	// Create a wrapped version of the Descriptors and EnumDescriptors that
	// point to the file that defines them.
	g.WrapTypes()

	g.SetPackageNames()
	g.BuildTypeNameMap()

	g.GenerateAllFiles()

	gtest := generator.New()

	data, err := proto.Marshal(req)
	if err != nil {
		g.Error(err, "failed to marshal modified proto")
	}
	if err := proto.Unmarshal(data, gtest.Request); err != nil {
		g.Error(err, "parsing modified proto")
	}

	if len(gtest.Request.FileToGenerate) == 0 {
		gtest.Fail("no files to generate")
	}

	gtest.CommandLineParameters(gtest.Request.GetParameter())

	// Create a wrapped version of the Descriptors and EnumDescriptors that
	// point to the file that defines them.
	gtest.WrapTypes()

	gtest.SetPackageNames()
	gtest.BuildTypeNameMap()

	gtest.GeneratePlugin(testgen.NewPlugin())

	for i := 0; i < len(gtest.Response.File); i++ {
		if strings.Contains(*gtest.Response.File[i].Content, `//These tests are generated by github.com/gogo/protobuf/plugin/testgen`) {
			gtest.Response.File[i].Name = proto.String(strings.Replace(*gtest.Response.File[i].Name, ".pb.go", "pb_test.go", -1))
			g.Response.File = append(g.Response.File, gtest.Response.File[i])
		}
	}

	for i := 0; i < len(g.Response.File); i++ {
		formatted, err := format.Source([]byte(g.Response.File[i].GetContent()))
		if err != nil {
			g.Error(err, "go format error")
		}
		fmts := string(formatted)
		g.Response.File[i].Content = &fmts
	}
	return g.Response
}

func TestUnmarshalPartiallyPopulatedOptionalFieldsFails(t *testing.T) {
	// Fill in all fields, then randomly remove one.
	dataOut := &test.NinOptNative{
		Field1:  proto.Float64(0),
		Field2:  proto.Float32(0),
		Field3:  proto.Int32(0),
		Field4:  proto.Int64(0),
		Field5:  proto.Uint32(0),
		Field6:  proto.Uint64(0),
		Field7:  proto.Int32(0),
		Field8:  proto.Int64(0),
		Field9:  proto.Uint32(0),
		Field10: proto.Int32(0),
		Field11: proto.Uint64(0),
		Field12: proto.Int64(0),
		Field13: proto.Bool(false),
		Field14: proto.String("0"),
		Field15: []byte("0"),
	}
	r := rand.New(rand.NewSource(time.Now().UnixNano()))
	fieldName := "Field" + strconv.Itoa(r.Intn(15)+1)
	field := reflect.ValueOf(dataOut).Elem().FieldByName(fieldName)
	fieldType := field.Type()
	field.Set(reflect.Zero(fieldType))
	encodedMessage, err := proto.Marshal(dataOut)
	if err != nil {
		t.Fatalf("Unexpected error when marshalling dataOut: %v", err)
	}
	dataIn := NidOptNative{}
	err = proto.Unmarshal(encodedMessage, &dataIn)
	if err.Error() != `proto: required field "`+fieldName+`" not set` {
		t.Fatalf(`err.Error() != "proto: required field "`+fieldName+`" not set"; was "%s" instead`, err.Error())
	}
}

func TestZeroLengthOptionalBytes(t *testing.T) {
	roundtrip := func(f *Foo) *Foo {
		data, err := proto.Marshal(f)
		if err != nil {
			panic(err)
		}
		newF := &Foo{}
		err = proto.Unmarshal(data, newF)
		if err != nil {
			panic(err)
		}
		return newF
	}

	f := &Foo{}
	roundtrippedF := roundtrip(f)
	if roundtrippedF.Bar != nil {
		t.Fatalf("should be nil")
	}

	f.Bar = []byte{}
	roundtrippedF = roundtrip(f)
	if roundtrippedF.Bar == nil {
		t.Fatalf("should not be nil")
	}
	if len(roundtrippedF.Bar) != 0 {
		t.Fatalf("should be empty")
	}
}

func (this *fullReader) ReadMsg(msg proto.Message) error {
	length, err := this.r.Read(this.buf)
	if err != nil {
		return err
	}
	return proto.Unmarshal(this.buf[:length], msg)
}

func TestMessageMarshalTo(t *testing.T) {
	seed := time.Now().UnixNano()
	popr := math_rand.New(math_rand.NewSource(seed))
	p := NewPopulatedMessage(popr, false)
	size := p.Size()
	data := make([]byte, size)
	for i := range data {
		data[i] = byte(popr.Intn(256))
	}
	_, err := p.MarshalTo(data)
	if err != nil {
		t.Fatalf("seed = %d, err = %v", seed, err)
	}
	msg := &Message{}
	if err := github_com_gogo_protobuf_proto.Unmarshal(data, msg); err != nil {
		t.Fatalf("seed = %d, err = %v", seed, err)
	}
	for i := range data {
		data[i] = byte(popr.Intn(256))
	}
	if err := p.VerboseEqual(msg); err != nil {
		t.Fatalf("seed = %d, %#v !VerboseProto %#v, since %v", seed, msg, p, err)
	}
	if !p.Equal(msg) {
		t.Fatalf("seed = %d, %#v !Proto %#v", seed, msg, p)
	}
}

//See another version of this test in proto/extensions_test.go
func TestGetExtensionStability(t *testing.T) {
	check := func(m *NoExtensionsMap) bool {
		ext1, err := proto.GetExtension(m, E_FieldB1)
		if err != nil {
			t.Fatalf("GetExtension() failed: %s", err)
		}
		ext2, err := proto.GetExtension(m, E_FieldB1)
		if err != nil {
			t.Fatalf("GetExtension() failed: %s", err)
		}
		return ext1.(*NinOptNative).Equal(ext2)
	}
	msg := &NoExtensionsMap{Field1: proto.Int64(2)}
	ext0 := &NinOptNative{Field1: proto.Float64(1)}
	if err := proto.SetExtension(msg, E_FieldB1, ext0); err != nil {
		t.Fatalf("Could not set ext1: %s", ext0)
	}
	if !check(msg) {
		t.Errorf("GetExtension() not stable before marshaling")
	}
	bb, err := proto.Marshal(msg)
	if err != nil {
		t.Fatalf("Marshal() failed: %s", err)
	}
	msg1 := &NoExtensionsMap{}
	err = proto.Unmarshal(bb, msg1)
	if err != nil {
		t.Fatalf("Unmarshal() failed: %s", err)
	}
	if !check(msg1) {
		t.Errorf("GetExtension() not stable after unmarshaling")
	}
}

func readMsgCtx(ctx context.Context, r msgio.Reader, p proto.Message) ([]byte, error) {
	var msg []byte

	// read in a goroutine so we can exit when our context is cancelled.
	done := make(chan error)
	go func() {
		var err error
		msg, err = r.ReadMsg()
		select {
		case done <- err:
		case <-ctx.Done():
		}
	}()

	select {
	case <-ctx.Done():
		return nil, ctx.Err()
	case e := <-done:
		if e != nil {
			return nil, e
		}
	}

	return msg, proto.Unmarshal(msg, p)
}

func TestFuzzSint64Overflow(t *testing.T) {
	msg := &NinOptNative{}
	//original := []byte{0x9, 0x65, 0xb4, 0xfd, 0xbc, 0x5, 0xc7, 0xee, 0x3f, 0x15, 0x48, 0xec, 0x67, 0x3f, 0x18, 0xca, 0xa4, 0xe0, 0xa9, 0x5, 0x20, 0x8e, 0xb7, 0x9f, 0xf5, 0xcf, 0xe9, 0xea, 0xad, 0xfd, 0x1, 0x28, 0xc9, 0xf1, 0xbc, 0x88, 0xc, 0x30, 0xeb, 0x99, 0xbd, 0xa8, 0xe, 0x38, 0xc0, 0xd4, 0xb7, 0xba, 0x7, 0x40, 0xc8, 0xe4, 0xf6, 0xe2, 0xb8, 0xdd, 0xa7, 0xf2, 0x82, 0xba, 0x16, 0x9d, 0x59, 0xf9, 0x31, 0xe0, 0x99, 0x0, 0x0, 0x0, 0x0, 0x61, 0x59, 0x5b, 0xb5, 0x57, 0x56, 0x93, 0x70, 0xde, 0x68, 0x0, 0x72, 0x40, 0x64, 0x5a, 0x5a, 0x61, 0x57, 0x78, 0x68, 0x53, 0x65, 0x66, 0x67, 0x38, 0x38, 0x61, 0x48, 0x44, 0x32, 0x6c, 0x36, 0x50, 0x31, 0x4d, 0x43, 0x39, 0x31, 0x6d, 0x37, 0x34, 0x32, 0x48, 0x6b, 0x4d, 0x70, 0x31, 0x45, 0x73, 0x48, 0x71, 0x4a, 0x69, 0x37, 0x56, 0x53, 0x44, 0x6b, 0x48, 0x45, 0x50, 0x4b, 0x7a, 0x52, 0x49, 0x4c, 0x50, 0x69, 0x44, 0x72, 0x42, 0x56, 0x50, 0x78, 0x62, 0x56, 0x55, 0x7a, 0x5b, 0xb3, 0x6c, 0x59, 0x4c, 0xf1, 0x31, 0xeb, 0xb6, 0x25, 0x1a, 0x26, 0x67, 0x66, 0x97, 0x79, 0xb8, 0x37, 0x8, 0xe1, 0x32, 0x45, 0x6e, 0x6, 0x90, 0x4f, 0xde, 0x26, 0x7a, 0xc6, 0x29, 0x65, 0x4a, 0x69, 0xa7, 0x21, 0xfb, 0x42, 0xda, 0x43, 0x89, 0x27, 0x70, 0x71, 0xde, 0x66, 0xa4, 0x75, 0x2b, 0x5c, 0x96, 0x9f, 0x25, 0x3b, 0xc1, 0x64, 0x14, 0x4, 0x60, 0x8c, 0x58, 0x7e, 0xa1, 0x59, 0x7b, 0x47, 0x18, 0xc, 0x5b, 0x18, 0x63, 0x9, 0xb4, 0xc9, 0x7, 0xf9, 0xae, 0x33, 0xae, 0x2, 0x4a, 0x8b, 0x34, 0x92, 0x40, 0xb, 0xd7, 0x80, 0x60, 0xdb, 0x44, 0x5}
	input := []byte{0x40, 0xc8, 0xe4, 0xf6, 0xe2, 0xb8, 0xdd, 0xa7, 0xf2, 0x82, 0xba, 0x16}
	if err := proto.Unmarshal(input, msg); err != nil {
		return
	}
}

func DisabledTestFuzzPackedIsNotIdempotent(t *testing.T) {
	msg := &NinRepPackedNative{}
	//original := []byte{0x9, 0xa3, 0xae, 0xab, 0xd2, 0xbe, 0x1c, 0xed, 0xbf, 0x15, 0x22, 0x1, 0x6e, 0x3f, 0x22, 0x81, 0x1, 0x9, 0x21, 0x84, 0x36, 0x21, 0x6a, 0xff, 0xd3, 0x3f, 0x15, 0x15, 0x71, 0x4b, 0xbd, 0x52, 0x70, 0x49, 0x6e, 0x48, 0x54, 0x6a, 0x61, 0x37, 0x63, 0x78, 0x47, 0x58, 0x31, 0x7a, 0x43, 0x4d, 0x7a, 0x48, 0x58, 0x56, 0xcb, 0x9c, 0x34, 0xdf, 0xc6, 0x3c, 0xa4, 0x33, 0xac, 0xba, 0xa7, 0xeb, 0x4, 0xa8, 0x8a, 0x48, 0x75, 0x67, 0x71, 0x31, 0x4a, 0x5b, 0xe1, 0xcf, 0x21, 0x88, 0xd3, 0xec, 0xac, 0x13, 0x28, 0xec, 0xa9, 0x51, 0xc8, 0xe9, 0x5e, 0xca, 0xbe, 0xea, 0x9c, 0x0, 0x6b, 0x44, 0x63, 0xc4, 0x32, 0xaa, 0x36, 0x4e, 0xfc, 0xbd, 0x7, 0xef, 0x5e, 0x47, 0x2, 0xfc, 0xd8, 0x83, 0x85, 0x9c, 0xca, 0x7c, 0xd2, 0xdb, 0xf5, 0x5d, 0xcc, 0x5a, 0x72, 0x1f, 0x66, 0x55, 0x74, 0x46, 0x47, 0x73, 0x75, 0x54, 0x30, 0x39, 0x53, 0x34, 0x4c, 0x61, 0x78, 0x59, 0x31, 0x51, 0x44, 0x30, 0x53, 0x51, 0x71, 0x44, 0x65, 0x6f, 0x53, 0x30, 0x44, 0x6a, 0x58, 0x7a, 0x1b, 0x65, 0x62, 0x9c, 0x95, 0xc5, 0x41, 0xcb, 0x48, 0xa, 0x47, 0xf6, 0xd8, 0xd2, 0xd5, 0x8d, 0x6, 0x69, 0x8f, 0xbe, 0x7c, 0xf3, 0xe9, 0x79, 0x3c, 0xca, 0x6, 0x5b}
	input := []byte{0x9, 0xa3, 0xae, 0xab, 0xd2, 0xbe, 0x1c, 0xed, 0xbf, 0x15, 0x22, 0x1, 0x6e, 0x3f, 0x22, 0x81, 0x1, 0x9, 0x21, 0x84, 0x36, 0x21, 0x6a, 0xff, 0xd3, 0x3f, 0x15, 0x15, 0x71, 0x4b, 0xbd, 0x52, 0x70, 0x49, 0x6e, 0x48, 0x54, 0x6a, 0x61, 0x37, 0x63, 0x78, 0x47, 0x58, 0x31, 0x7a, 0x43, 0x4d, 0x7a, 0x48, 0x58, 0x56, 0xcb, 0x9c, 0x34, 0xdf, 0xc6, 0x3c, 0xa4, 0x33, 0xac, 0xba, 0xa7, 0xeb, 0x4, 0xa8, 0x8a, 0x48, 0x75, 0x67, 0x71, 0x31, 0x4a, 0x5b, 0xe1, 0xcf, 0x21, 0x88, 0xd3, 0xec, 0xac, 0x13, 0x28, 0xec, 0xa9, 0x51, 0xc8, 0xe9, 0x5e, 0xca, 0xbe, 0xea, 0x9c, 0x0, 0x6b, 0x44, 0x63, 0xc4, 0x32, 0xaa, 0x36, 0x4e, 0xfc, 0xbd, 0x7, 0xef, 0x5e, 0x47, 0x2, 0xfc, 0xd8, 0x83, 0x85, 0x9c, 0xca, 0x7c, 0xd2, 0xdb, 0xf5, 0x5d, 0xcc, 0x5a, 0x72, 0x1f, 0x66, 0x55, 0x74, 0x46, 0x47, 0x73, 0x75, 0x54, 0x30, 0x39, 0x53, 0x34, 0x4c, 0x61, 0x78, 0x59, 0x31, 0x51, 0x44, 0x30, 0x53, 0x51}
	if err := proto.Unmarshal(input, msg); err == nil {
		t.Fatal("expected error")
	}
}