youtubebeat/vendor/github.com/golang/protobuf/proto/discard_test.go

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2018-11-18 15:32:28 +01:00
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2017 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/test_proto"
)
func TestDiscardUnknown(t *testing.T) {
tests := []struct {
desc string
in, want proto.Message
}{{
desc: "Nil",
in: nil, want: nil, // Should not panic
}, {
desc: "NilPtr",
in: (*proto3pb.Message)(nil), want: (*proto3pb.Message)(nil), // Should not panic
}, {
desc: "Nested",
in: &proto3pb.Message{
Name: "Aaron",
Nested: &proto3pb.Nested{Cute: true, XXX_unrecognized: []byte("blah")},
XXX_unrecognized: []byte("blah"),
},
want: &proto3pb.Message{
Name: "Aaron",
Nested: &proto3pb.Nested{Cute: true},
},
}, {
desc: "Slice",
in: &proto3pb.Message{
Name: "Aaron",
Children: []*proto3pb.Message{
{Name: "Sarah", XXX_unrecognized: []byte("blah")},
{Name: "Abraham", XXX_unrecognized: []byte("blah")},
},
XXX_unrecognized: []byte("blah"),
},
want: &proto3pb.Message{
Name: "Aaron",
Children: []*proto3pb.Message{
{Name: "Sarah"},
{Name: "Abraham"},
},
},
}, {
desc: "OneOf",
in: &pb.Communique{
Union: &pb.Communique_Msg{&pb.Strings{
StringField: proto.String("123"),
XXX_unrecognized: []byte("blah"),
}},
XXX_unrecognized: []byte("blah"),
},
want: &pb.Communique{
Union: &pb.Communique_Msg{&pb.Strings{StringField: proto.String("123")}},
},
}, {
desc: "Map",
in: &pb.MessageWithMap{MsgMapping: map[int64]*pb.FloatingPoint{
0x4002: &pb.FloatingPoint{
Exact: proto.Bool(true),
XXX_unrecognized: []byte("blah"),
},
}},
want: &pb.MessageWithMap{MsgMapping: map[int64]*pb.FloatingPoint{
0x4002: &pb.FloatingPoint{Exact: proto.Bool(true)},
}},
}, {
desc: "Extension",
in: func() proto.Message {
m := &pb.MyMessage{
Count: proto.Int32(42),
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(6),
XXX_unrecognized: []byte("blah"),
},
XXX_unrecognized: []byte("blah"),
}
proto.SetExtension(m, pb.E_Ext_More, &pb.Ext{
Data: proto.String("extension"),
XXX_unrecognized: []byte("blah"),
})
return m
}(),
want: func() proto.Message {
m := &pb.MyMessage{
Count: proto.Int32(42),
Somegroup: &pb.MyMessage_SomeGroup{GroupField: proto.Int32(6)},
}
proto.SetExtension(m, pb.E_Ext_More, &pb.Ext{Data: proto.String("extension")})
return m
}(),
}}
// Test the legacy code path.
for _, tt := range tests {
// Clone the input so that we don't alter the original.
in := tt.in
if in != nil {
in = proto.Clone(tt.in)
}
var m LegacyMessage
m.Message, _ = in.(*proto3pb.Message)
m.Communique, _ = in.(*pb.Communique)
m.MessageWithMap, _ = in.(*pb.MessageWithMap)
m.MyMessage, _ = in.(*pb.MyMessage)
proto.DiscardUnknown(&m)
if !proto.Equal(in, tt.want) {
t.Errorf("test %s/Legacy, expected unknown fields to be discarded\ngot %v\nwant %v", tt.desc, in, tt.want)
}
}
for _, tt := range tests {
proto.DiscardUnknown(tt.in)
if !proto.Equal(tt.in, tt.want) {
t.Errorf("test %s, expected unknown fields to be discarded\ngot %v\nwant %v", tt.desc, tt.in, tt.want)
}
}
}
// LegacyMessage is a proto.Message that has several nested messages.
// This does not have the XXX_DiscardUnknown method and so forces DiscardUnknown
// to use the legacy fallback logic.
type LegacyMessage struct {
Message *proto3pb.Message
Communique *pb.Communique
MessageWithMap *pb.MessageWithMap
MyMessage *pb.MyMessage
}
func (m *LegacyMessage) Reset() { *m = LegacyMessage{} }
func (m *LegacyMessage) String() string { return proto.CompactTextString(m) }
func (*LegacyMessage) ProtoMessage() {}