route/vendor/github.com/golang/protobuf/protoc-gen-go/testdata/extension_test.go

211 lines
6.6 KiB
Go

// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 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.
// Test that we can use protocol buffers that use extensions.
package testdata
/*
import (
"bytes"
"regexp"
"testing"
"github.com/golang/protobuf/proto"
base "extension_base.pb"
user "extension_user.pb"
)
func TestSingleFieldExtension(t *testing.T) {
bm := &base.BaseMessage{
Height: proto.Int32(178),
}
// Use extension within scope of another type.
vol := proto.Uint32(11)
err := proto.SetExtension(bm, user.E_LoudMessage_Volume, vol)
if err != nil {
t.Fatal("Failed setting extension:", err)
}
buf, err := proto.Marshal(bm)
if err != nil {
t.Fatal("Failed encoding message with extension:", err)
}
bm_new := new(base.BaseMessage)
if err := proto.Unmarshal(buf, bm_new); err != nil {
t.Fatal("Failed decoding message with extension:", err)
}
if !proto.HasExtension(bm_new, user.E_LoudMessage_Volume) {
t.Fatal("Decoded message didn't contain extension.")
}
vol_out, err := proto.GetExtension(bm_new, user.E_LoudMessage_Volume)
if err != nil {
t.Fatal("Failed getting extension:", err)
}
if v := vol_out.(*uint32); *v != *vol {
t.Errorf("vol_out = %v, expected %v", *v, *vol)
}
proto.ClearExtension(bm_new, user.E_LoudMessage_Volume)
if proto.HasExtension(bm_new, user.E_LoudMessage_Volume) {
t.Fatal("Failed clearing extension.")
}
}
func TestMessageExtension(t *testing.T) {
bm := &base.BaseMessage{
Height: proto.Int32(179),
}
// Use extension that is itself a message.
um := &user.UserMessage{
Name: proto.String("Dave"),
Rank: proto.String("Major"),
}
err := proto.SetExtension(bm, user.E_LoginMessage_UserMessage, um)
if err != nil {
t.Fatal("Failed setting extension:", err)
}
buf, err := proto.Marshal(bm)
if err != nil {
t.Fatal("Failed encoding message with extension:", err)
}
bm_new := new(base.BaseMessage)
if err := proto.Unmarshal(buf, bm_new); err != nil {
t.Fatal("Failed decoding message with extension:", err)
}
if !proto.HasExtension(bm_new, user.E_LoginMessage_UserMessage) {
t.Fatal("Decoded message didn't contain extension.")
}
um_out, err := proto.GetExtension(bm_new, user.E_LoginMessage_UserMessage)
if err != nil {
t.Fatal("Failed getting extension:", err)
}
if n := um_out.(*user.UserMessage).Name; *n != *um.Name {
t.Errorf("um_out.Name = %q, expected %q", *n, *um.Name)
}
if r := um_out.(*user.UserMessage).Rank; *r != *um.Rank {
t.Errorf("um_out.Rank = %q, expected %q", *r, *um.Rank)
}
proto.ClearExtension(bm_new, user.E_LoginMessage_UserMessage)
if proto.HasExtension(bm_new, user.E_LoginMessage_UserMessage) {
t.Fatal("Failed clearing extension.")
}
}
func TestTopLevelExtension(t *testing.T) {
bm := &base.BaseMessage{
Height: proto.Int32(179),
}
width := proto.Int32(17)
err := proto.SetExtension(bm, user.E_Width, width)
if err != nil {
t.Fatal("Failed setting extension:", err)
}
buf, err := proto.Marshal(bm)
if err != nil {
t.Fatal("Failed encoding message with extension:", err)
}
bm_new := new(base.BaseMessage)
if err := proto.Unmarshal(buf, bm_new); err != nil {
t.Fatal("Failed decoding message with extension:", err)
}
if !proto.HasExtension(bm_new, user.E_Width) {
t.Fatal("Decoded message didn't contain extension.")
}
width_out, err := proto.GetExtension(bm_new, user.E_Width)
if err != nil {
t.Fatal("Failed getting extension:", err)
}
if w := width_out.(*int32); *w != *width {
t.Errorf("width_out = %v, expected %v", *w, *width)
}
proto.ClearExtension(bm_new, user.E_Width)
if proto.HasExtension(bm_new, user.E_Width) {
t.Fatal("Failed clearing extension.")
}
}
func TestMessageSetWireFormat(t *testing.T) {
osm := new(base.OldStyleMessage)
osp := &user.OldStyleParcel{
Name: proto.String("Dave"),
Height: proto.Int32(178),
}
err := proto.SetExtension(osm, user.E_OldStyleParcel_MessageSetExtension, osp)
if err != nil {
t.Fatal("Failed setting extension:", err)
}
buf, err := proto.Marshal(osm)
if err != nil {
t.Fatal("Failed encoding message:", err)
}
// Data generated from Python implementation.
expected := []byte{
11, 16, 209, 15, 26, 9, 10, 4, 68, 97, 118, 101, 16, 178, 1, 12,
}
if !bytes.Equal(expected, buf) {
t.Errorf("Encoding mismatch.\nwant %+v\n got %+v", expected, buf)
}
// Check that it is restored correctly.
osm = new(base.OldStyleMessage)
if err := proto.Unmarshal(buf, osm); err != nil {
t.Fatal("Failed decoding message:", err)
}
osp_out, err := proto.GetExtension(osm, user.E_OldStyleParcel_MessageSetExtension)
if err != nil {
t.Fatal("Failed getting extension:", err)
}
osp = osp_out.(*user.OldStyleParcel)
if *osp.Name != "Dave" || *osp.Height != 178 {
t.Errorf("Retrieved extension from decoded message is not correct: %+v", osp)
}
}
func main() {
// simpler than rigging up gotest
testing.Main(regexp.MatchString, []testing.InternalTest{
{"TestSingleFieldExtension", TestSingleFieldExtension},
{"TestMessageExtension", TestMessageExtension},
{"TestTopLevelExtension", TestTopLevelExtension},
},
[]testing.InternalBenchmark{},
[]testing.InternalExample{})
}
*/