// Copyright 2019 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" "google.golang.org/protobuf/internal/encoding/pack" "google.golang.org/protobuf/internal/flags" "google.golang.org/protobuf/proto" testpb "google.golang.org/protobuf/internal/testprotos/test" weakpb "google.golang.org/protobuf/internal/testprotos/test/weak1" ) func TestWeak(t *testing.T) { if !flags.ProtoLegacy { t.SkipNow() } m := new(testpb.TestWeak) b := pack.Message{ pack.Tag{1, pack.BytesType}, pack.LengthPrefix(pack.Message{ pack.Tag{1, pack.VarintType}, pack.Varint(1000), }), pack.Tag{2, pack.BytesType}, pack.LengthPrefix(pack.Message{ pack.Tag{1, pack.VarintType}, pack.Varint(2000), }), }.Marshal() if err := proto.Unmarshal(b, m); err != nil { t.Errorf("Unmarshal error: %v", err) } mw := m.GetWeakMessage1().(*weakpb.WeakImportMessage1) if mw.GetA() != 1000 { t.Errorf("m.WeakMessage1.a = %d, want %d", mw.GetA(), 1000) } if len(m.ProtoReflect().GetUnknown()) == 0 { t.Errorf("m has no unknown fields, expected at least something") } if n := proto.Size(m); n != len(b) { t.Errorf("Size() = %d, want %d", n, len(b)) } b2, err := proto.Marshal(m) if err != nil { t.Errorf("Marshal error: %v", err) } if len(b2) != len(b) { t.Errorf("len(Marshal) = %d, want %d", len(b2), len(b)) } } func TestWeakNil(t *testing.T) { if !flags.ProtoLegacy { t.SkipNow() } m := new(testpb.TestWeak) if v, ok := m.GetWeakMessage1().(*weakpb.WeakImportMessage1); !ok || v != nil { t.Errorf("m.GetWeakMessage1() = type %[1]T(%[1]v), want (*weakpb.WeakImportMessage1)", v) } } func TestWeakMarshalNil(t *testing.T) { if !flags.ProtoLegacy { t.SkipNow() } m := new(testpb.TestWeak) m.SetWeakMessage1(nil) if b, err := proto.Marshal(m); err != nil || len(b) != 0 { t.Errorf("Marshal(weak field set to nil) = [%x], %v; want [], nil", b, err) } m.SetWeakMessage1((*weakpb.WeakImportMessage1)(nil)) if b, err := proto.Marshal(m); err != nil || len(b) != 0 { t.Errorf("Marshal(weak field set to typed nil) = [%x], %v; want [], nil", b, err) } }