213 lines
8 KiB
Go
213 lines
8 KiB
Go
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// Go support for Protocol Buffers - Google's data interchange format
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//
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// Copyright 2011 The Go Authors. All rights reserved.
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// https://github.com/golang/protobuf
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package proto_test
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import (
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"testing"
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. "github.com/golang/protobuf/proto"
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proto3pb "github.com/golang/protobuf/proto/proto3_proto"
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pb "github.com/golang/protobuf/proto/testdata"
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)
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// Four identical base messages.
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// The init function adds extensions to some of them.
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var messageWithoutExtension = &pb.MyMessage{Count: Int32(7)}
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var messageWithExtension1a = &pb.MyMessage{Count: Int32(7)}
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var messageWithExtension1b = &pb.MyMessage{Count: Int32(7)}
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var messageWithExtension2 = &pb.MyMessage{Count: Int32(7)}
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// Two messages with non-message extensions.
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var messageWithInt32Extension1 = &pb.MyMessage{Count: Int32(8)}
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var messageWithInt32Extension2 = &pb.MyMessage{Count: Int32(8)}
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func init() {
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ext1 := &pb.Ext{Data: String("Kirk")}
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ext2 := &pb.Ext{Data: String("Picard")}
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// messageWithExtension1a has ext1, but never marshals it.
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if err := SetExtension(messageWithExtension1a, pb.E_Ext_More, ext1); err != nil {
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panic("SetExtension on 1a failed: " + err.Error())
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}
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// messageWithExtension1b is the unmarshaled form of messageWithExtension1a.
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if err := SetExtension(messageWithExtension1b, pb.E_Ext_More, ext1); err != nil {
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panic("SetExtension on 1b failed: " + err.Error())
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}
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buf, err := Marshal(messageWithExtension1b)
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if err != nil {
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panic("Marshal of 1b failed: " + err.Error())
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}
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messageWithExtension1b.Reset()
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if err := Unmarshal(buf, messageWithExtension1b); err != nil {
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panic("Unmarshal of 1b failed: " + err.Error())
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}
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// messageWithExtension2 has ext2.
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if err := SetExtension(messageWithExtension2, pb.E_Ext_More, ext2); err != nil {
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panic("SetExtension on 2 failed: " + err.Error())
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}
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if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(23)); err != nil {
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panic("SetExtension on Int32-1 failed: " + err.Error())
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}
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if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(24)); err != nil {
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panic("SetExtension on Int32-2 failed: " + err.Error())
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}
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}
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var EqualTests = []struct {
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desc string
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a, b Message
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exp bool
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}{
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{"different types", &pb.GoEnum{}, &pb.GoTestField{}, false},
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{"equal empty", &pb.GoEnum{}, &pb.GoEnum{}, true},
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{"nil vs nil", nil, nil, true},
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{"typed nil vs typed nil", (*pb.GoEnum)(nil), (*pb.GoEnum)(nil), true},
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{"typed nil vs empty", (*pb.GoEnum)(nil), &pb.GoEnum{}, false},
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{"different typed nil", (*pb.GoEnum)(nil), (*pb.GoTestField)(nil), false},
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{"one set field, one unset field", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{}, false},
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{"one set field zero, one unset field", &pb.GoTest{Param: Int32(0)}, &pb.GoTest{}, false},
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{"different set fields", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("bar")}, false},
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{"equal set", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("foo")}, true},
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{"repeated, one set", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{}, false},
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{"repeated, different length", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{F_Int32Repeated: []int32{2}}, false},
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{"repeated, different value", &pb.GoTest{F_Int32Repeated: []int32{2}}, &pb.GoTest{F_Int32Repeated: []int32{3}}, false},
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{"repeated, equal", &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, true},
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{"repeated, nil equal nil", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: nil}, true},
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{"repeated, nil equal empty", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: []int32{}}, true},
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{"repeated, empty equal nil", &pb.GoTest{F_Int32Repeated: []int32{}}, &pb.GoTest{F_Int32Repeated: nil}, true},
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{
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"nested, different",
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&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("foo")}},
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&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("bar")}},
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false,
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},
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{
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"nested, equal",
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&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
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&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
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true,
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},
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{"bytes", &pb.OtherMessage{Value: []byte("foo")}, &pb.OtherMessage{Value: []byte("foo")}, true},
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{"bytes, empty", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: []byte{}}, true},
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{"bytes, empty vs nil", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: nil}, false},
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{
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"repeated bytes",
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&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
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&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
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true,
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},
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// In proto3, []byte{} and []byte(nil) are equal.
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{"proto3 bytes, empty vs nil", &proto3pb.Message{Data: []byte{}}, &proto3pb.Message{Data: nil}, true},
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{"extension vs. no extension", messageWithoutExtension, messageWithExtension1a, false},
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{"extension vs. same extension", messageWithExtension1a, messageWithExtension1b, true},
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{"extension vs. different extension", messageWithExtension1a, messageWithExtension2, false},
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{"int32 extension vs. itself", messageWithInt32Extension1, messageWithInt32Extension1, true},
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{"int32 extension vs. a different int32", messageWithInt32Extension1, messageWithInt32Extension2, false},
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{
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"message with group",
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&pb.MyMessage{
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Count: Int32(1),
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Somegroup: &pb.MyMessage_SomeGroup{
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GroupField: Int32(5),
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},
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},
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&pb.MyMessage{
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Count: Int32(1),
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Somegroup: &pb.MyMessage_SomeGroup{
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GroupField: Int32(5),
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},
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},
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true,
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},
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{
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"map same",
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&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
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&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
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true,
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},
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{
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"map different entry",
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&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
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&pb.MessageWithMap{NameMapping: map[int32]string{2: "Rob"}},
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false,
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},
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{
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"map different key only",
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&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
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&pb.MessageWithMap{NameMapping: map[int32]string{2: "Ken"}},
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false,
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},
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{
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"map different value only",
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&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
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&pb.MessageWithMap{NameMapping: map[int32]string{1: "Rob"}},
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false,
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},
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{
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"oneof same",
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&pb.Communique{Union: &pb.Communique_Number{41}},
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&pb.Communique{Union: &pb.Communique_Number{41}},
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true,
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},
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{
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"oneof one nil",
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&pb.Communique{Union: &pb.Communique_Number{41}},
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&pb.Communique{},
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false,
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},
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{
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"oneof different",
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&pb.Communique{Union: &pb.Communique_Number{41}},
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&pb.Communique{Union: &pb.Communique_Name{"Bobby Tables"}},
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false,
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},
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}
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func TestEqual(t *testing.T) {
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for _, tc := range EqualTests {
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if res := Equal(tc.a, tc.b); res != tc.exp {
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t.Errorf("%v: Equal(%v, %v) = %v, want %v", tc.desc, tc.a, tc.b, res, tc.exp)
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}
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}
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}
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