Golang程序
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"log"
"strings"
"testing"
. "github.com/golang/protobuf/proto"
proto3pb "github.com/golang/protobuf/proto/proto3_proto"
pb "github.com/golang/protobuf/proto/test_proto"
)
var messageWithExtension1 = &pb.MyMessage{Count: Int32(7)}
// messageWithExtension2 is in equal_test.go.
var messageWithExtension3 = &pb.MyMessage{Count: Int32(8)}
func init() {
if err := SetExtension(messageWithExtension1, pb.E_Ext_More, &pb.Ext{Data: String("Abbott")}); err != nil {
log.Panicf("SetExtension: %v", err)
}
if err := SetExtension(messageWithExtension3, pb.E_Ext_More, &pb.Ext{Data: String("Costello")}); err != nil {
log.Panicf("SetExtension: %v", err)
}
// Force messageWithExtension3 to have the extension encoded.
Marshal(messageWithExtension3)
}
// non-pointer custom message
type nonptrMessage struct{}
func (m nonptrMessage) ProtoMessage() {}
func (m nonptrMessage) Reset() {}
func (m nonptrMessage) String() string { return "" }
func (m nonptrMessage) Marshal() ([]byte, error) {
return []byte{42}, nil
}
// custom message embedding a proto.Message
type messageWithEmbedding struct {
*pb.OtherMessage
}
func (m *messageWithEmbedding) ProtoMessage() {}
func (m *messageWithEmbedding) Reset() {}
func (m *messageWithEmbedding) String() string { return "" }
func (m *messageWithEmbedding) Marshal() ([]byte, error) {
return []byte{42}, nil
}
var SizeTests = []struct {
desc string
pb Message
}{
{"empty", &pb.OtherMessage{}},
// Basic types.
{"bool", &pb.Defaults{F_Bool: Bool(true)}},
{"int32", &pb.Defaults{F_Int32: Int32(12)}},
{"negative int32", &pb.Defaults{F_Int32: Int32(-1)}},
{"small int64", &pb.Defaults{F_Int64: Int64(1)}},
{"big int64", &pb.Defaults{F_Int64: Int64(1 << 20)}},
{"negative int64", &pb.Defaults{F_Int64: Int64(-1)}},
{"fixed32", &pb.Defaults{F_Fixed32: Uint32(71)}},
{"fixed64", &pb.Defaults{F_Fixed64: Uint64(72)}},
{"uint32", &pb.Defaults{F_Uint32: Uint32(123)}},
{"uint64", &pb.Defaults{F_Uint64: Uint64(124)}},
{"float", &pb.Defaults{F_Float: Float32(12.6)}},
{"double", &pb.Defaults{F_Double: Float64(13.9)}},
{"string", &pb.Defaults{F_String: String("niles")}},
{"bytes", &pb.Defaults{F_Bytes: []byte("wowsa")}},
{"bytes, empty", &pb.Defaults{F_Bytes: []byte{}}},
{"sint32", &pb.Defaults{F_Sint32: Int32(65)}},
{"sint64", &pb.Defaults{F_Sint64: Int64(67)}},
{"enum", &pb.Defaults{F_Enum: pb.Defaults_BLUE.Enum()}},
// Repeated.
{"empty repeated bool", &pb.MoreRepeated{Bools: []bool{}}},
{"repeated bool", &pb.MoreRepeated{Bools: []bool{false, true, true, false}}},
{"packed repeated bool", &pb.MoreRepeated{BoolsPacked: []bool{false, true, true, false, true, true, true}}},
{"repeated int32", &pb.MoreRepeated{Ints: []int32{1, 12203, 1729, -1}}},
{"repeated int32 packed", &pb.MoreRepeated{IntsPacked: []int32{1, 12203, 1729}}},
{"repeated int64 packed", &pb.MoreRepeated{Int64SPacked: []int64{
// Need enough large numbers to verify that the header is counting the number of bytes
// for the field, not the number of elements.
1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62,
1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62,
}}},
{"repeated string", &pb.MoreRepeated{Strings: []string{"r", "ken", "gri"}}},
{"repeated fixed", &pb.MoreRepeated{Fixeds: []uint32{1, 2, 3, 4}}},
// Nested.
{"nested", &pb.OldMessage{Nested: &pb.OldMessage_Nested{Name: String("whatever")}}},
{"group", &pb.GroupOld{G: &pb.GroupOld_G{X: Int32(12345)}}},
// Other things.
{"unrecognized", &pb.MoreRepeated{XXX_unrecognized: []byte{13<<3 | 0, 4}}},
{"extension (unencoded)", messageWithExtension1},
{"extension (encoded)", messageWithExtension3},
// proto3 message
{"proto3 empty", &proto3pb.Message{}},
{"proto3 bool", &proto3pb.Message{TrueScotsman: true}},
{"proto3 int64", &proto3pb.Message{ResultCount: 1}},
{"proto3 uint32", &proto3pb.Message{HeightInCm: 123}},
{"proto3 float", &proto3pb.Message{Score: 12.6}},
{"proto3 string", &proto3pb.Message{Name: "Snezana"}},
{"proto3 bytes", &proto3pb.Message{Data: []byte("wowsa")}},
{"proto3 bytes, empty", &proto3pb.Message{Data: []byte{}}},
{"proto3 enum", &proto3pb.Message{Hilarity: proto3pb.Message_PUNS}},
{"proto3 map field with empty bytes", &proto3pb.MessageWithMap{ByteMapping: map[bool][]byte{false: []byte{}}}},
{"map field", &pb.MessageWithMap{NameMapping: map[int32]string{1: "Rob", 7: "Andrew"}}},
{"map field with message", &pb.MessageWithMap{MsgMapping: map[int64]*pb.FloatingPoint{0x7001: &pb.FloatingPoint{F: Float64(2.0)}}}},
{"map field with bytes", &pb.MessageWithMap{ByteMapping: map[bool][]byte{true: []byte("this time for sure")}}},
{"map field with empty bytes", &pb.MessageWithMap{ByteMapping: map[bool][]byte{true: []byte{}}}},
{"map field with big entry", &pb.MessageWithMap{NameMapping: map[int32]string{8: strings.Repeat("x", 125)}}},
{"map field with big key and val", &pb.MessageWithMap{StrToStr: map[string]string{strings.Repeat("x", 70): strings.Repeat("y", 70)}}},
{"map field with big numeric key", &pb.MessageWithMap{NameMapping: map[int32]string{0xf00d: "om nom nom"}}},
{"oneof not set", &pb.Oneof{}},
{"oneof bool", &pb.Oneof{Union: &pb.Oneof_F_Bool{true}}},
{"oneof zero int32", &pb.Oneof{Union: &pb.Oneof_F_Int32{0}}},
{"oneof big int32", &pb.Oneof{Union: &pb.Oneof_F_Int32{1 << 20}}},
{"oneof int64", &pb.Oneof{Union: &pb.Oneof_F_Int64{42}}},
{"oneof fixed32", &pb.Oneof{Union: &pb.Oneof_F_Fixed32{43}}},
{"oneof fixed64", &pb.Oneof{Union: &pb.Oneof_F_Fixed64{44}}},
{"oneof uint32", &pb.Oneof{Union: &pb.Oneof_F_Uint32{45}}},
{"oneof uint64", &pb.Oneof{Union: &pb.Oneof_F_Uint64{46}}},
{"oneof float", &pb.Oneof{Union: &pb.Oneof_F_Float{47.1}}},
{"oneof double", &pb.Oneof{Union: &pb.Oneof_F_Double{48.9}}},
{"oneof string", &pb.Oneof{Union: &pb.Oneof_F_String{"Rhythmic Fman"}}},
{"oneof bytes", &pb.Oneof{Union: &pb.Oneof_F_Bytes{[]byte("let go")}}},
{"oneof sint32", &pb.Oneof{Union: &pb.Oneof_F_Sint32{50}}},
{"oneof sint64", &pb.Oneof{Union: &pb.Oneof_F_Sint64{51}}},
{"oneof enum", &pb.Oneof{Union: &pb.Oneof_F_Enum{pb.MyMessage_BLUE}}},
{"message for oneof", &pb.GoTestField{Label: String("k"), Type: String("v")}},
{"oneof message", &pb.Oneof{Union: &pb.Oneof_F_Message{&pb.GoTestField{Label: String("k"), Type: String("v")}}}},
{"oneof group", &pb.Oneof{Union: &pb.Oneof_FGroup{&pb.Oneof_F_Group{X: Int32(52)}}}},
{"oneof largest tag", &pb.Oneof{Union: &pb.Oneof_F_Largest_Tag{1}}},
{"multiple oneofs", &pb.Oneof{Union: &pb.Oneof_F_Int32{1}, Tormato: &pb.Oneof_Value{2}}},
{"non-pointer message", nonptrMessage{}},
{"custom message with embedding", &messageWithEmbedding{&pb.OtherMessage{}}},
}
func TestSize(t *testing.T) {
for _, tc := range SizeTests {
size := Size(tc.pb)
b, err := Marshal(tc.pb)
if err != nil {
t.Errorf("%v: Marshal failed: %v", tc.desc, err)
continue
}
if size != len(b) {
t.Errorf("%v: Size(%v) = %d, want %d", tc.desc, tc.pb, size, len(b))
t.Logf("%v: bytes: %#v", tc.desc, b)
}
}
}