--- /dev/null
+// 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,
+ },
+ {
+ "zero-length maps same",
+ &pb.MessageWithMap{NameMapping: map[int32]string{}},
+ &pb.MessageWithMap{NameMapping: nil},
+ true,
+ },
+ {
+ "orders in map don't matter",
+ &pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken", 2: "Rob"}},
+ &pb.MessageWithMap{NameMapping: map[int32]string{2: "Rob", 1: "Ken"}},
+ true,
+ },
+ {
+ "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)
+ }
+ }
+}
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