1 // Go support for Protocol Buffers - Google's data interchange format
3 // Copyright 2014 The Go Authors. All rights reserved.
4 // https://github.com/golang/protobuf
6 // Redistribution and use in source and binary forms, with or without
7 // modification, are permitted provided that the following conditions are
10 // * Redistributions of source code must retain the above copyright
11 // notice, this list of conditions and the following disclaimer.
12 // * Redistributions in binary form must reproduce the above
13 // copyright notice, this list of conditions and the following disclaimer
14 // in the documentation and/or other materials provided with the
16 // * Neither the name of Google Inc. nor the names of its
17 // contributors may be used to endorse or promote products derived from
18 // this software without specific prior written permission.
20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 "github.com/golang/protobuf/proto"
38 pb "github.com/golang/protobuf/proto/proto3_proto"
39 tpb "github.com/golang/protobuf/proto/testdata"
42 func TestProto3ZeroValues(t *testing.T) {
47 {"zero message", &pb.Message{}},
48 {"empty bytes field", &pb.Message{Data: []byte{}}},
50 for _, test := range tests {
51 b, err := proto.Marshal(test.m)
53 t.Errorf("%s: proto.Marshal: %v", test.desc, err)
57 t.Errorf("%s: Encoding is non-empty: %q", test.desc, b)
62 func TestRoundTripProto3(t *testing.T) {
64 Name: "David", // (2 | 1<<3): 0x0a 0x05 "David"
65 Hilarity: pb.Message_PUNS, // (0 | 2<<3): 0x10 0x01
66 HeightInCm: 178, // (0 | 3<<3): 0x18 0xb2 0x01
67 Data: []byte("roboto"), // (2 | 4<<3): 0x20 0x06 "roboto"
68 ResultCount: 47, // (0 | 7<<3): 0x38 0x2f
69 TrueScotsman: true, // (0 | 8<<3): 0x40 0x01
70 Score: 8.1, // (5 | 9<<3): 0x4d <8.1>
72 Key: []uint64{1, 0xdeadbeef},
79 b, err := proto.Marshal(m)
81 t.Fatalf("proto.Marshal: %v", err)
86 if err := proto.Unmarshal(b, m2); err != nil {
87 t.Fatalf("proto.Unmarshal: %v", err)
91 if !proto.Equal(m, m2) {
92 t.Errorf("proto.Equal returned false:\n m: %v\nm2: %v", m, m2)
96 func TestGettersForBasicTypesExist(t *testing.T) {
98 if got := m.GetNested().GetBunny(); got != "" {
99 t.Errorf("m.GetNested().GetBunny() = %q, want empty string", got)
101 if got := m.GetNested().GetCute(); got {
102 t.Errorf("m.GetNested().GetCute() = %t, want false", got)
106 func TestProto3SetDefaults(t *testing.T) {
108 Terrain: map[string]*pb.Nested{
109 "meadow": new(pb.Nested),
111 Proto2Field: new(tpb.SubDefaults),
112 Proto2Value: map[string]*tpb.SubDefaults{
113 "badlands": new(tpb.SubDefaults),
117 got := proto.Clone(in).(*pb.Message)
118 proto.SetDefaults(got)
120 // There are no defaults in proto3. Everything should be the zero value, but
121 // we need to remember to set defaults for nested proto2 messages.
123 Terrain: map[string]*pb.Nested{
124 "meadow": new(pb.Nested),
126 Proto2Field: &tpb.SubDefaults{N: proto.Int64(7)},
127 Proto2Value: map[string]*tpb.SubDefaults{
128 "badlands": &tpb.SubDefaults{N: proto.Int64(7)},
132 if !proto.Equal(got, want) {
133 t.Errorf("with in = %v\nproto.SetDefaults(in) =>\ngot %v\nwant %v", in, got, want)