func TestProto3SetDefaults(t *testing.T) {
in := &pb.Message{
Terrain: map[string]*pb.Nested{
"meadow": new(pb.Nested),
},
Proto2Field: new(tpb.SubDefaults),
Proto2Value: map[string]*tpb.SubDefaults{
"badlands": new(tpb.SubDefaults),
},
}
got := proto.Clone(in).(*pb.Message)
proto.SetDefaults(got)
// There are no defaults in proto3. Everything should be the zero value, but
// we need to remember to set defaults for nested proto2 messages.
want := &pb.Message{
Terrain: map[string]*pb.Nested{
"meadow": new(pb.Nested),
},
Proto2Field: &tpb.SubDefaults{N: proto.Int64(7)},
Proto2Value: map[string]*tpb.SubDefaults{
"badlands": &tpb.SubDefaults{N: proto.Int64(7)},
},
}
if !proto.Equal(got, want) {
t.Errorf("with in = %v\nproto.SetDefaults(in) =>\ngot %v\nwant %v", in, got, want)
}
}
func newTestMessage() *pb.MyMessage {
msg := &pb.MyMessage{
Count: proto.Int32(42),
Name: proto.String("Dave"),
Quote: proto.String(`"I didn't want to go."`),
Pet: []string{"bunny", "kitty", "horsey"},
Inner: &pb.InnerMessage{
Host: proto.String("footrest.syd"),
Port: proto.Int32(7001),
Connected: proto.Bool(true),
},
Others: []*pb.OtherMessage{
{
Key: proto.Int64(0xdeadbeef),
Value: []byte{1, 65, 7, 12},
},
{
Weight: proto.Float32(6.022),
Inner: &pb.InnerMessage{
Host: proto.String("lesha.mtv"),
Port: proto.Int32(8002),
},
},
},
Bikeshed: pb.MyMessage_BLUE.Enum(),
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(8),
},
// One normally wouldn't do this.
// This is an undeclared tag 13, as a varint (wire type 0) with value 4.
XXX_unrecognized: []byte{13<<3 | 0, 4},
}
ext := &pb.Ext{
Data: proto.String("Big gobs for big rats"),
}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext); err != nil {
panic(err)
}
greetings := []string{"adg", "easy", "cow"}
if err := proto.SetExtension(msg, pb.E_Greeting, greetings); err != nil {
panic(err)
}
// Add an unknown extension. We marshal a pb.Ext, and fake the ID.
b, err := proto.Marshal(&pb.Ext{Data: proto.String("3G skiing")})
if err != nil {
panic(err)
}
b = append(proto.EncodeVarint(201<<3|proto.WireBytes), b...)
proto.SetRawExtension(msg, 201, b)
// Extensions can be plain fields, too, so let's test that.
b = append(proto.EncodeVarint(202<<3|proto.WireVarint), 19)
proto.SetRawExtension(msg, 202, b)
return msg
}
Pet: []string{"horsey"},
Others: []*pb.OtherMessage{
{
Value: []byte("some bytes"),
},
},
},
dst: &pb.MyMessage{
Inner: &pb.InnerMessage{
Host: proto.String("niles"),
Port: proto.Int32(9099),
},
Pet: []string{"bunny", "kitty"},
Others: []*pb.OtherMessage{
{
Key: proto.Int64(31415926535),
},
{
// Explicitly test a src=nil field
Inner: nil,
},
},
},
want: &pb.MyMessage{
Inner: &pb.InnerMessage{
Host: proto.String("hey"),
Connected: proto.Bool(true),
Port: proto.Int32(9099),
},
Pet: []string{"bunny", "kitty", "horsey"},
Others: []*pb.OtherMessage{