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// Copyright 2011 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 (
"testing"
"github.com/golang/protobuf/proto"
pb2 "github.com/golang/protobuf/internal/testprotos/proto2_proto"
pb3 "github.com/golang/protobuf/internal/testprotos/proto3_proto"
)
// Four identical base messages.
// The init function adds extensions to some of them.
var messageWithoutExtension = &pb2.MyMessage{Count: proto.Int32(7)}
var messageWithExtension1a = &pb2.MyMessage{Count: proto.Int32(7)}
var messageWithExtension1b = &pb2.MyMessage{Count: proto.Int32(7)}
var messageWithExtension2 = &pb2.MyMessage{Count: proto.Int32(7)}
var messageWithExtension3a = &pb2.MyMessage{Count: proto.Int32(7)}
var messageWithExtension3b = &pb2.MyMessage{Count: proto.Int32(7)}
var messageWithExtension3c = &pb2.MyMessage{Count: proto.Int32(7)}
// Two messages with non-message extensions.
var messageWithInt32Extension1 = &pb2.MyMessage{Count: proto.Int32(8)}
var messageWithInt32Extension2 = &pb2.MyMessage{Count: proto.Int32(8)}
func init() {
ext1 := &pb2.Ext{Data: proto.String("Kirk")}
ext2 := &pb2.Ext{Data: proto.String("Picard")}
// messageWithExtension1a has ext1, but never marshals it.
if err := proto.SetExtension(messageWithExtension1a, pb2.E_Ext_More, ext1); err != nil {
panic("proto.SetExtension on 1a failed: " + err.Error())
}
// messageWithExtension1b is the unmarshaled form of messageWithExtension1a.
if err := proto.SetExtension(messageWithExtension1b, pb2.E_Ext_More, ext1); err != nil {
panic("proto.SetExtension on 1b failed: " + err.Error())
}
buf, err := proto.Marshal(messageWithExtension1b)
if err != nil {
panic("proto.Marshal of 1b failed: " + err.Error())
}
messageWithExtension1b.Reset()
if err := proto.Unmarshal(buf, messageWithExtension1b); err != nil {
panic("proto.Unmarshal of 1b failed: " + err.Error())
}
// messageWithExtension2 has ext2.
if err := proto.SetExtension(messageWithExtension2, pb2.E_Ext_More, ext2); err != nil {
panic("proto.SetExtension on 2 failed: " + err.Error())
}
if err := proto.SetExtension(messageWithInt32Extension1, pb2.E_Ext_Number, proto.Int32(23)); err != nil {
panic("proto.SetExtension on Int32-1 failed: " + err.Error())
}
if err := proto.SetExtension(messageWithInt32Extension1, pb2.E_Ext_Number, proto.Int32(24)); err != nil {
panic("proto.SetExtension on Int32-2 failed: " + err.Error())
}
// messageWithExtension3{a,b,c} has unregistered extension.
if proto.RegisteredExtensions(messageWithExtension3a)[200] != nil {
panic("expect extension 200 unregistered")
}
bytes := []byte{
0xc0, 0x0c, 0x01, // id=200, wiretype=0 (varint), data=1
}
bytes2 := []byte{
0xc0, 0x0c, 0x02, // id=200, wiretype=0 (varint), data=2
}
proto.SetRawExtension(messageWithExtension3a, 200, bytes)
proto.SetRawExtension(messageWithExtension3b, 200, bytes)
proto.SetRawExtension(messageWithExtension3c, 200, bytes2)
}
var EqualTests = []struct {
desc string
a, b proto.Message
exp bool
}{
{"different types", &pb2.GoEnum{}, &pb2.GoTestField{}, false},
{"equal empty", &pb2.GoEnum{}, &pb2.GoEnum{}, true},
{"nil vs nil", nil, nil, true},
{"typed nil vs typed nil", (*pb2.GoEnum)(nil), (*pb2.GoEnum)(nil), true},
{"typed nil vs empty", (*pb2.GoEnum)(nil), &pb2.GoEnum{}, false},
{"different typed nil", (*pb2.GoEnum)(nil), (*pb2.GoTestField)(nil), false},
{"one set field, one unset field", &pb2.GoTestField{Label: proto.String("foo")}, &pb2.GoTestField{}, false},
{"one set field zero, one unset field", &pb2.GoTest{Param: proto.Int32(0)}, &pb2.GoTest{}, false},
{"different set fields", &pb2.GoTestField{Label: proto.String("foo")}, &pb2.GoTestField{Label: proto.String("bar")}, false},
{"equal set", &pb2.GoTestField{Label: proto.String("foo")}, &pb2.GoTestField{Label: proto.String("foo")}, true},
{"repeated, one set", &pb2.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb2.GoTest{}, false},
{"repeated, different length", &pb2.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb2.GoTest{F_Int32Repeated: []int32{2}}, false},
{"repeated, different value", &pb2.GoTest{F_Int32Repeated: []int32{2}}, &pb2.GoTest{F_Int32Repeated: []int32{3}}, false},
{"repeated, equal", &pb2.GoTest{F_Int32Repeated: []int32{2, 4}}, &pb2.GoTest{F_Int32Repeated: []int32{2, 4}}, true},
{"repeated, nil equal nil", &pb2.GoTest{F_Int32Repeated: nil}, &pb2.GoTest{F_Int32Repeated: nil}, true},
{"repeated, nil equal empty", &pb2.GoTest{F_Int32Repeated: nil}, &pb2.GoTest{F_Int32Repeated: []int32{}}, true},
{"repeated, empty equal nil", &pb2.GoTest{F_Int32Repeated: []int32{}}, &pb2.GoTest{F_Int32Repeated: nil}, true},
{
"nested, different",
&pb2.GoTest{RequiredField: &pb2.GoTestField{Label: proto.String("foo")}},
&pb2.GoTest{RequiredField: &pb2.GoTestField{Label: proto.String("bar")}},
false,
},
{
"nested, equal",
&pb2.GoTest{RequiredField: &pb2.GoTestField{Label: proto.String("wow")}},
&pb2.GoTest{RequiredField: &pb2.GoTestField{Label: proto.String("wow")}},
true,
},
{"bytes", &pb2.OtherMessage{Value: []byte("foo")}, &pb2.OtherMessage{Value: []byte("foo")}, true},
{"bytes, empty", &pb2.OtherMessage{Value: []byte{}}, &pb2.OtherMessage{Value: []byte{}}, true},
{"bytes, empty vs nil", &pb2.OtherMessage{Value: []byte{}}, &pb2.OtherMessage{Value: nil}, false},
{
"repeated bytes",
&pb2.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
&pb2.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
true,
},
// In proto3, []byte{} and []byte(nil) are equal.
{"proto3 bytes, empty vs nil", &pb3.Message{Data: []byte{}}, &pb3.Message{Data: nil}, true},
{"extension vs. no extension", messageWithoutExtension, messageWithExtension1a, false},
{"extension vs. same extension", messageWithExtension1a, messageWithExtension1b, true},
{"extension vs. different extension", messageWithExtension1a, messageWithExtension2, false},
{"int32 extension vs. itself", messageWithInt32Extension1, messageWithInt32Extension1, true},
{"int32 extension vs. a different int32", messageWithInt32Extension1, messageWithInt32Extension2, false},
{"unregistered extension same", messageWithExtension3a, messageWithExtension3b, true},
{"unregistered extension different", messageWithExtension3a, messageWithExtension3c, false},
{
"message with group",
&pb2.MyMessage{
Count: proto.Int32(1),
Somegroup: &pb2.MyMessage_SomeGroup{
GroupField: proto.Int32(5),
},
},
&pb2.MyMessage{
Count: proto.Int32(1),
Somegroup: &pb2.MyMessage_SomeGroup{
GroupField: proto.Int32(5),
},
},
true,
},
{
"map same",
&pb2.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb2.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
true,
},
{
"map different entry",
&pb2.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb2.MessageWithMap{NameMapping: map[int32]string{2: "Rob"}},
false,
},
{
"map different key only",
&pb2.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb2.MessageWithMap{NameMapping: map[int32]string{2: "Ken"}},
false,
},
{
"map different value only",
&pb2.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb2.MessageWithMap{NameMapping: map[int32]string{1: "Rob"}},
false,
},
{
"zero-length maps same",
&pb2.MessageWithMap{NameMapping: map[int32]string{}},
&pb2.MessageWithMap{NameMapping: nil},
true,
},
{
"orders in map don't matter",
&pb2.MessageWithMap{NameMapping: map[int32]string{1: "Ken", 2: "Rob"}},
&pb2.MessageWithMap{NameMapping: map[int32]string{2: "Rob", 1: "Ken"}},
true,
},
{
"oneof same",
&pb2.Communique{Union: &pb2.Communique_Number{41}},
&pb2.Communique{Union: &pb2.Communique_Number{41}},
true,
},
{
"oneof one nil",
&pb2.Communique{Union: &pb2.Communique_Number{41}},
&pb2.Communique{},
false,
},
{
"oneof different",
&pb2.Communique{Union: &pb2.Communique_Number{41}},
&pb2.Communique{Union: &pb2.Communique_Name{"Bobby Tables"}},
false,
},
}
func TestEqual(t *testing.T) {
for _, tc := range EqualTests {
if res := proto.Equal(tc.a, tc.b); res != tc.exp {
t.Errorf("%v: Equal(%v, %v) = %v, want %v", tc.desc, tc.a, tc.b, res, tc.exp)
}
}
}