proto/equal_test.go - third_party/golang/protobuf - Git at Google

 // Go support for Protocol Buffers - Google's data interchange format
 //
 // Copyright 2011 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 (
 	"testing"

 	. "github.com/golang/protobuf/proto"
 	proto3pb "github.com/golang/protobuf/proto/proto3_proto"
 	pb "github.com/golang/protobuf/proto/testdata"
 )

 // Four identical base messages.
 // The init function adds extensions to some of them.
 var messageWithoutExtension = &pb.MyMessage{Count: Int32(7)}
 var messageWithExtension1a = &pb.MyMessage{Count: Int32(7)}
 var messageWithExtension1b = &pb.MyMessage{Count: Int32(7)}
 var messageWithExtension2 = &pb.MyMessage{Count: Int32(7)}

 // Two messages with non-message extensions.
 var messageWithInt32Extension1 = &pb.MyMessage{Count: Int32(8)}
 var messageWithInt32Extension2 = &pb.MyMessage{Count: Int32(8)}

 func init() {
 	ext1 := &pb.Ext{Data: String("Kirk")}
 	ext2 := &pb.Ext{Data: String("Picard")}

 	// messageWithExtension1a has ext1, but never marshals it.
 	if err := SetExtension(messageWithExtension1a, pb.E_Ext_More, ext1); err != nil {
 		panic("SetExtension on 1a failed: " + err.Error())
 	}

 	// messageWithExtension1b is the unmarshaled form of messageWithExtension1a.
 	if err := SetExtension(messageWithExtension1b, pb.E_Ext_More, ext1); err != nil {
 		panic("SetExtension on 1b failed: " + err.Error())
 	}
 	buf, err := Marshal(messageWithExtension1b)
 	if err != nil {
 		panic("Marshal of 1b failed: " + err.Error())
 	}
 	messageWithExtension1b.Reset()
 	if err := Unmarshal(buf, messageWithExtension1b); err != nil {
 		panic("Unmarshal of 1b failed: " + err.Error())
 	}

 	// messageWithExtension2 has ext2.
 	if err := SetExtension(messageWithExtension2, pb.E_Ext_More, ext2); err != nil {
 		panic("SetExtension on 2 failed: " + err.Error())
 	}

 	if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(23)); err != nil {
 		panic("SetExtension on Int32-1 failed: " + err.Error())
 	}
 	if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(24)); err != nil {
 		panic("SetExtension on Int32-2 failed: " + err.Error())
 	}
 }

 var EqualTests = []struct {
 	desc string
 	a, b Message
 	exp  bool
 }{
 	{"different types", &pb.GoEnum{}, &pb.GoTestField{}, false},
 	{"equal empty", &pb.GoEnum{}, &pb.GoEnum{}, true},
 	{"nil vs nil", nil, nil, true},
 	{"typed nil vs typed nil", (*pb.GoEnum)(nil), (*pb.GoEnum)(nil), true},
 	{"typed nil vs empty", (*pb.GoEnum)(nil), &pb.GoEnum{}, false},
 	{"different typed nil", (*pb.GoEnum)(nil), (*pb.GoTestField)(nil), false},

 	{"one set field, one unset field", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{}, false},
 	{"one set field zero, one unset field", &pb.GoTest{Param: Int32(0)}, &pb.GoTest{}, false},
 	{"different set fields", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("bar")}, false},
 	{"equal set", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("foo")}, true},

 	{"repeated, one set", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{}, false},
 	{"repeated, different length", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{F_Int32Repeated: []int32{2}}, false},
 	{"repeated, different value", &pb.GoTest{F_Int32Repeated: []int32{2}}, &pb.GoTest{F_Int32Repeated: []int32{3}}, false},
 	{"repeated, equal", &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, true},
 	{"repeated, nil equal nil", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: nil}, true},
 	{"repeated, nil equal empty", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: []int32{}}, true},
 	{"repeated, empty equal nil", &pb.GoTest{F_Int32Repeated: []int32{}}, &pb.GoTest{F_Int32Repeated: nil}, true},

 	{
 		"nested, different",
 		&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("foo")}},
 		&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("bar")}},
 		false,
 	},
 	{
 		"nested, equal",
 		&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
 		&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
 		true,
 	},

 	{"bytes", &pb.OtherMessage{Value: []byte("foo")}, &pb.OtherMessage{Value: []byte("foo")}, true},
 	{"bytes, empty", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: []byte{}}, true},
 	{"bytes, empty vs nil", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: nil}, false},
 	{
 		"repeated bytes",
 		&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
 		&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
 		true,
 	},
 	// In proto3, []byte{} and []byte(nil) are equal.
 	{"proto3 bytes, empty vs nil", &proto3pb.Message{Data: []byte{}}, &proto3pb.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},

 	{
 		"message with group",
 		&pb.MyMessage{
 			Count: Int32(1),
 			Somegroup: &pb.MyMessage_SomeGroup{
 				GroupField: Int32(5),
 			},
 		},
 		&pb.MyMessage{
 			Count: Int32(1),
 			Somegroup: &pb.MyMessage_SomeGroup{
 				GroupField: Int32(5),
 			},
 		},
 		true,
 	},

 	{
 		"map same",
 		&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
 		&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
 		true,
 	},
 	{
 		"map different entry",
 		&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
 		&pb.MessageWithMap{NameMapping: map[int32]string{2: "Rob"}},
 		false,
 	},
 	{
 		"map different key only",
 		&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
 		&pb.MessageWithMap{NameMapping: map[int32]string{2: "Ken"}},
 		false,
 	},
 	{
 		"map different value only",
 		&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
 		&pb.MessageWithMap{NameMapping: map[int32]string{1: "Rob"}},
 		false,
 	},
 	{
 		"oneof same",
 		&pb.Communique{Union: &pb.Communique_Number{41}},
 		&pb.Communique{Union: &pb.Communique_Number{41}},
 		true,
 	},
 	{
 		"oneof one nil",
 		&pb.Communique{Union: &pb.Communique_Number{41}},
 		&pb.Communique{},
 		false,
 	},
 	{
 		"oneof different",
 		&pb.Communique{Union: &pb.Communique_Number{41}},
 		&pb.Communique{Union: &pb.Communique_Name{"Bobby Tables"}},
 		false,
 	},
 }

 func TestEqual(t *testing.T) {
 	for _, tc := range EqualTests {
 		if res := 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)
 		}
 	}
 }
	// Go support for Protocol Buffers - Google's data interchange format
	//
	// Copyright 2011 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 (
	"testing"

	. "github.com/golang/protobuf/proto"
	proto3pb "github.com/golang/protobuf/proto/proto3_proto"
	pb "github.com/golang/protobuf/proto/testdata"
	)

	// Four identical base messages.
	// The init function adds extensions to some of them.
	var messageWithoutExtension = &pb.MyMessage{Count: Int32(7)}
	var messageWithExtension1a = &pb.MyMessage{Count: Int32(7)}
	var messageWithExtension1b = &pb.MyMessage{Count: Int32(7)}
	var messageWithExtension2 = &pb.MyMessage{Count: Int32(7)}

	// Two messages with non-message extensions.
	var messageWithInt32Extension1 = &pb.MyMessage{Count: Int32(8)}
	var messageWithInt32Extension2 = &pb.MyMessage{Count: Int32(8)}

	func init() {
	ext1 := &pb.Ext{Data: String("Kirk")}
	ext2 := &pb.Ext{Data: String("Picard")}

	// messageWithExtension1a has ext1, but never marshals it.
	if err := SetExtension(messageWithExtension1a, pb.E_Ext_More, ext1); err != nil {
	panic("SetExtension on 1a failed: " + err.Error())
	}

	// messageWithExtension1b is the unmarshaled form of messageWithExtension1a.
	if err := SetExtension(messageWithExtension1b, pb.E_Ext_More, ext1); err != nil {
	panic("SetExtension on 1b failed: " + err.Error())
	}
	buf, err := Marshal(messageWithExtension1b)
	if err != nil {
	panic("Marshal of 1b failed: " + err.Error())
	}
	messageWithExtension1b.Reset()
	if err := Unmarshal(buf, messageWithExtension1b); err != nil {
	panic("Unmarshal of 1b failed: " + err.Error())
	}

	// messageWithExtension2 has ext2.
	if err := SetExtension(messageWithExtension2, pb.E_Ext_More, ext2); err != nil {
	panic("SetExtension on 2 failed: " + err.Error())
	}

	if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(23)); err != nil {
	panic("SetExtension on Int32-1 failed: " + err.Error())
	}
	if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(24)); err != nil {
	panic("SetExtension on Int32-2 failed: " + err.Error())
	}
	}

	var EqualTests = []struct {
	desc string
	a, b Message
	exp bool
	}{
	{"different types", &pb.GoEnum{}, &pb.GoTestField{}, false},
	{"equal empty", &pb.GoEnum{}, &pb.GoEnum{}, true},
	{"nil vs nil", nil, nil, true},
	{"typed nil vs typed nil", (pb.GoEnum)(nil), (pb.GoEnum)(nil), true},
	{"typed nil vs empty", (*pb.GoEnum)(nil), &pb.GoEnum{}, false},
	{"different typed nil", (pb.GoEnum)(nil), (pb.GoTestField)(nil), false},

	{"one set field, one unset field", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{}, false},
	{"one set field zero, one unset field", &pb.GoTest{Param: Int32(0)}, &pb.GoTest{}, false},
	{"different set fields", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("bar")}, false},
	{"equal set", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("foo")}, true},

	{"repeated, one set", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{}, false},
	{"repeated, different length", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{F_Int32Repeated: []int32{2}}, false},
	{"repeated, different value", &pb.GoTest{F_Int32Repeated: []int32{2}}, &pb.GoTest{F_Int32Repeated: []int32{3}}, false},
	{"repeated, equal", &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, true},
	{"repeated, nil equal nil", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: nil}, true},
	{"repeated, nil equal empty", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: []int32{}}, true},
	{"repeated, empty equal nil", &pb.GoTest{F_Int32Repeated: []int32{}}, &pb.GoTest{F_Int32Repeated: nil}, true},

	{
	"nested, different",
	&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("foo")}},
	&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("bar")}},
	false,
	},
	{
	"nested, equal",
	&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
	&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
	true,
	},

	{"bytes", &pb.OtherMessage{Value: []byte("foo")}, &pb.OtherMessage{Value: []byte("foo")}, true},
	{"bytes, empty", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: []byte{}}, true},
	{"bytes, empty vs nil", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: nil}, false},
	{
	"repeated bytes",
	&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
	&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
	true,
	},
	// In proto3, []byte{} and []byte(nil) are equal.
	{"proto3 bytes, empty vs nil", &proto3pb.Message{Data: []byte{}}, &proto3pb.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},

	{
	"message with group",
	&pb.MyMessage{
	Count: Int32(1),
	Somegroup: &pb.MyMessage_SomeGroup{
	GroupField: Int32(5),
	},
	},
	&pb.MyMessage{
	Count: Int32(1),
	Somegroup: &pb.MyMessage_SomeGroup{
	GroupField: Int32(5),
	},
	},
	true,
	},

	{
	"map same",
	&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
	&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
	true,
	},
	{
	"map different entry",
	&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
	&pb.MessageWithMap{NameMapping: map[int32]string{2: "Rob"}},
	false,
	},
	{
	"map different key only",
	&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
	&pb.MessageWithMap{NameMapping: map[int32]string{2: "Ken"}},
	false,
	},
	{
	"map different value only",
	&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
	&pb.MessageWithMap{NameMapping: map[int32]string{1: "Rob"}},
	false,
	},
	{
	"oneof same",
	&pb.Communique{Union: &pb.Communique_Number{41}},
	&pb.Communique{Union: &pb.Communique_Number{41}},
	true,
	},
	{
	"oneof one nil",
	&pb.Communique{Union: &pb.Communique_Number{41}},
	&pb.Communique{},
	false,
	},
	{
	"oneof different",
	&pb.Communique{Union: &pb.Communique_Number{41}},
	&pb.Communique{Union: &pb.Communique_Name{"Bobby Tables"}},
	false,
	},
	}

	func TestEqual(t *testing.T) {
	for _, tc := range EqualTests {
	if res := 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)
	}
	}
	}