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// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package proto_test
import (
"testing"
"github.com/golang/protobuf/proto"
"google.golang.org/protobuf/testing/protopack"
pb2 "github.com/golang/protobuf/internal/testprotos/proto2_proto"
pb3 "github.com/golang/protobuf/internal/testprotos/proto3_proto"
)
var rawFields = protopack.Message{
protopack.Tag{5, protopack.Fixed32Type}, protopack.Uint32(4041331395),
}.Marshal()
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: (*pb3.Message)(nil), want: (*pb3.Message)(nil), // Should not panic
}, {
desc: "Nested",
in: &pb3.Message{
Name: "Aaron",
Nested: &pb3.Nested{Cute: true, XXX_unrecognized: []byte(rawFields)},
XXX_unrecognized: []byte(rawFields),
},
want: &pb3.Message{
Name: "Aaron",
Nested: &pb3.Nested{Cute: true},
},
}, {
desc: "Slice",
in: &pb3.Message{
Name: "Aaron",
Children: []*pb3.Message{
{Name: "Sarah", XXX_unrecognized: []byte(rawFields)},
{Name: "Abraham", XXX_unrecognized: []byte(rawFields)},
},
XXX_unrecognized: []byte(rawFields),
},
want: &pb3.Message{
Name: "Aaron",
Children: []*pb3.Message{
{Name: "Sarah"},
{Name: "Abraham"},
},
},
}, {
desc: "OneOf",
in: &pb2.Communique{
Union: &pb2.Communique_Msg{&pb2.Strings{
StringField: proto.String("123"),
XXX_unrecognized: []byte(rawFields),
}},
XXX_unrecognized: []byte(rawFields),
},
want: &pb2.Communique{
Union: &pb2.Communique_Msg{&pb2.Strings{StringField: proto.String("123")}},
},
}, {
desc: "Map",
in: &pb2.MessageWithMap{MsgMapping: map[int64]*pb2.FloatingPoint{
0x4002: &pb2.FloatingPoint{
Exact: proto.Bool(true),
XXX_unrecognized: []byte(rawFields),
},
}},
want: &pb2.MessageWithMap{MsgMapping: map[int64]*pb2.FloatingPoint{
0x4002: &pb2.FloatingPoint{Exact: proto.Bool(true)},
}},
}, {
desc: "Extension",
in: func() proto.Message {
m := &pb2.MyMessage{
Count: proto.Int32(42),
Somegroup: &pb2.MyMessage_SomeGroup{
GroupField: proto.Int32(6),
XXX_unrecognized: []byte(rawFields),
},
XXX_unrecognized: []byte(rawFields),
}
proto.SetExtension(m, pb2.E_Ext_More, &pb2.Ext{
Data: proto.String("extension"),
XXX_unrecognized: []byte(rawFields),
})
return m
}(),
want: func() proto.Message {
m := &pb2.MyMessage{
Count: proto.Int32(42),
Somegroup: &pb2.MyMessage_SomeGroup{GroupField: proto.Int32(6)},
}
proto.SetExtension(m, pb2.E_Ext_More, &pb2.Ext{Data: proto.String("extension")})
return m
}(),
}}
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)
}
}
}