protobuf/proto/wire_size_test.go

178 строки
7.4 KiB
Go

// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package proto_test
import (
"log"
"math"
"strings"
"testing"
"github.com/golang/protobuf/proto"
pb2 "github.com/golang/protobuf/internal/testprotos/proto2_proto"
pb3 "github.com/golang/protobuf/internal/testprotos/proto3_proto"
)
var messageWithExtension1 = &pb2.MyMessage{Count: proto.Int32(7)}
// messageWithExtension2 is in equal_test.go.
var messageWithExtension3 = &pb2.MyMessage{Count: proto.Int32(8)}
func init() {
if err := proto.SetExtension(messageWithExtension1, pb2.E_Ext_More, &pb2.Ext{Data: proto.String("Abbott")}); err != nil {
log.Panicf("proto.SetExtension: %v", err)
}
if err := proto.SetExtension(messageWithExtension3, pb2.E_Ext_More, &pb2.Ext{Data: proto.String("Costello")}); err != nil {
log.Panicf("proto.SetExtension: %v", err)
}
// Force messageWithExtension3 to have the extension encoded.
proto.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
}
var SizeTests = []struct {
desc string
pb proto.Message
}{
{"empty", &pb2.OtherMessage{}},
// Basic types.
{"bool", &pb2.Defaults{F_Bool: proto.Bool(true)}},
{"int32", &pb2.Defaults{F_Int32: proto.Int32(12)}},
{"negative int32", &pb2.Defaults{F_Int32: proto.Int32(-1)}},
{"small int64", &pb2.Defaults{F_Int64: proto.Int64(1)}},
{"big int64", &pb2.Defaults{F_Int64: proto.Int64(1 << 20)}},
{"negative int64", &pb2.Defaults{F_Int64: proto.Int64(-1)}},
{"fixed32", &pb2.Defaults{F_Fixed32: proto.Uint32(71)}},
{"fixed64", &pb2.Defaults{F_Fixed64: proto.Uint64(72)}},
{"uint32", &pb2.Defaults{F_Uint32: proto.Uint32(123)}},
{"uint64", &pb2.Defaults{F_Uint64: proto.Uint64(124)}},
{"float", &pb2.Defaults{F_Float: proto.Float32(12.6)}},
{"double", &pb2.Defaults{F_Double: proto.Float64(13.9)}},
{"string", &pb2.Defaults{F_String: proto.String("niles")}},
{"bytes", &pb2.Defaults{F_Bytes: []byte("wowsa")}},
{"bytes, empty", &pb2.Defaults{F_Bytes: []byte{}}},
{"sint32", &pb2.Defaults{F_Sint32: proto.Int32(65)}},
{"sint64", &pb2.Defaults{F_Sint64: proto.Int64(67)}},
{"enum", &pb2.Defaults{F_Enum: pb2.Defaults_BLUE.Enum()}},
// Repeated.
{"empty repeated bool", &pb2.MoreRepeated{Bools: []bool{}}},
{"repeated bool", &pb2.MoreRepeated{Bools: []bool{false, true, true, false}}},
{"packed repeated bool", &pb2.MoreRepeated{BoolsPacked: []bool{false, true, true, false, true, true, true}}},
{"repeated int32", &pb2.MoreRepeated{Ints: []int32{1, 12203, 1729, -1}}},
{"repeated int32 packed", &pb2.MoreRepeated{IntsPacked: []int32{1, 12203, 1729}}},
{"repeated int64 packed", &pb2.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", &pb2.MoreRepeated{Strings: []string{"r", "ken", "gri"}}},
{"repeated fixed", &pb2.MoreRepeated{Fixeds: []uint32{1, 2, 3, 4}}},
// Nested.
{"nested", &pb2.OldMessage{Nested: &pb2.OldMessage_Nested{Name: proto.String("whatever")}}},
{"group", &pb2.GroupOld{G: &pb2.GroupOld_G{X: proto.Int32(12345)}}},
// Other things.
{"unrecognized", &pb2.MoreRepeated{XXX_unrecognized: []byte{13<<3 | 0, 4}}},
{"extension (unencoded)", messageWithExtension1},
{"extension (encoded)", messageWithExtension3},
// proto3 message
{"proto3 empty", &pb3.Message{}},
{"proto3 bool", &pb3.Message{TrueScotsman: true}},
{"proto3 int64", &pb3.Message{ResultCount: 1}},
{"proto3 uint32", &pb3.Message{HeightInCm: 123}},
{"proto3 float", &pb3.Message{Score: 12.6}},
{"proto3 string", &pb3.Message{Name: "Snezana"}},
{"proto3 bytes", &pb3.Message{Data: []byte("wowsa")}},
{"proto3 bytes, empty", &pb3.Message{Data: []byte{}}},
{"proto3 enum", &pb3.Message{Hilarity: pb3.Message_PUNS}},
{"proto3 map field with empty bytes", &pb3.MessageWithMap{ByteMapping: map[bool][]byte{false: []byte{}}}},
{"map field", &pb2.MessageWithMap{NameMapping: map[int32]string{1: "Rob", 7: "Andrew"}}},
{"map field with message", &pb2.MessageWithMap{MsgMapping: map[int64]*pb2.FloatingPoint{0x7001: &pb2.FloatingPoint{F: proto.Float64(2.0)}}}},
{"map field with bytes", &pb2.MessageWithMap{ByteMapping: map[bool][]byte{true: []byte("this time for sure")}}},
{"map field with empty bytes", &pb2.MessageWithMap{ByteMapping: map[bool][]byte{true: []byte{}}}},
{"map field with big entry", &pb2.MessageWithMap{NameMapping: map[int32]string{8: strings.Repeat("x", 125)}}},
{"map field with big key and val", &pb2.MessageWithMap{StrToStr: map[string]string{strings.Repeat("x", 70): strings.Repeat("y", 70)}}},
{"map field with big numeric key", &pb2.MessageWithMap{NameMapping: map[int32]string{0xf00d: "om nom nom"}}},
{"oneof not set", &pb2.Oneof{}},
{"oneof bool", &pb2.Oneof{Union: &pb2.Oneof_F_Bool{true}}},
{"oneof zero int32", &pb2.Oneof{Union: &pb2.Oneof_F_Int32{0}}},
{"oneof big int32", &pb2.Oneof{Union: &pb2.Oneof_F_Int32{1 << 20}}},
{"oneof int64", &pb2.Oneof{Union: &pb2.Oneof_F_Int64{42}}},
{"oneof fixed32", &pb2.Oneof{Union: &pb2.Oneof_F_Fixed32{43}}},
{"oneof fixed64", &pb2.Oneof{Union: &pb2.Oneof_F_Fixed64{44}}},
{"oneof uint32", &pb2.Oneof{Union: &pb2.Oneof_F_Uint32{45}}},
{"oneof uint64", &pb2.Oneof{Union: &pb2.Oneof_F_Uint64{46}}},
{"oneof float", &pb2.Oneof{Union: &pb2.Oneof_F_Float{47.1}}},
{"oneof double", &pb2.Oneof{Union: &pb2.Oneof_F_Double{48.9}}},
{"oneof string", &pb2.Oneof{Union: &pb2.Oneof_F_String{"Rhythmic Fman"}}},
{"oneof bytes", &pb2.Oneof{Union: &pb2.Oneof_F_Bytes{[]byte("let go")}}},
{"oneof sint32", &pb2.Oneof{Union: &pb2.Oneof_F_Sint32{50}}},
{"oneof sint64", &pb2.Oneof{Union: &pb2.Oneof_F_Sint64{51}}},
{"oneof enum", &pb2.Oneof{Union: &pb2.Oneof_F_Enum{pb2.MyMessage_BLUE}}},
{"message for oneof", &pb2.GoTestField{Label: proto.String("k"), Type: proto.String("v")}},
{"oneof message", &pb2.Oneof{Union: &pb2.Oneof_F_Message{&pb2.GoTestField{Label: proto.String("k"), Type: proto.String("v")}}}},
{"oneof group", &pb2.Oneof{Union: &pb2.Oneof_FGroup{&pb2.Oneof_F_Group{X: proto.Int32(52)}}}},
{"oneof largest tag", &pb2.Oneof{Union: &pb2.Oneof_F_Largest_Tag{1}}},
{"multiple oneofs", &pb2.Oneof{Union: &pb2.Oneof_F_Int32{1}, Tormato: &pb2.Oneof_Value{2}}},
{"non-pointer message", nonptrMessage{}},
}
func TestSize(t *testing.T) {
for _, tc := range SizeTests {
t.Run(tc.desc, func(t *testing.T) {
size := proto.Size(tc.pb)
b, err := proto.Marshal(tc.pb)
if err != nil {
t.Errorf("%v: Marshal failed: %v", tc.desc, err)
return
}
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)
}
})
}
}
func TestVarintSize(t *testing.T) {
// Check the edge cases carefully.
testCases := []struct {
n uint64
size int
}{
{0, 1},
{1, 1},
{127, 1},
{128, 2},
{16383, 2},
{16384, 3},
{math.MaxInt64, 9},
{math.MaxInt64 + 1, 10},
}
for _, tc := range testCases {
size := proto.SizeVarint(tc.n)
if size != tc.size {
t.Errorf("sizeVarint(%d) = %d, want %d", tc.n, size, tc.size)
}
}
}