func Example_Options() {
var msg *tpb.MyMessageSet
_, md := descriptor.ForMessage(msg)
if md.GetOptions().GetMessageSetWireFormat() {
fmt.Printf("%v uses option message_set_wire_format.\n", md.GetName())
}
// Output:
// MyMessageSet uses option message_set_wire_format.
}
func TestMessage(t *testing.T) {
var msg *descriptor.DescriptorProto
fd, md := descriptor.ForMessage(msg)
if pkg, want := fd.GetPackage(), "google.protobuf"; pkg != want {
t.Errorf("descriptor.ForMessage(%T).GetPackage() = %q; want %q", msg, pkg, want)
}
if name, want := md.GetName(), "DescriptorProto"; name != want {
t.Fatalf("descriptor.ForMessage(%T).GetName() = %q; want %q", msg, name, want)
}
}