golang-goprotobuf-dev 0.0~git20170808.0.1909bc2-2 / usr / share / gocode / src / github.com / golang / protobuf / proto / message_set_test.go

// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2014 The Go Authors.  All rights reserved.
// https://github.com/golang/protobuf
//
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// 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.
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// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
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// This package having both internal and external tests triggers a surprising
// bug in gccgo (see https://github.com/golang/go/issues/15738), so don't
// compile the internal tests with gccgo:
// +build !gccgo

package proto

import (
	"bytes"
	"testing"
)

func TestUnmarshalMessageSetWithDuplicate(t *testing.T) {
	// Check that a repeated message set entry will be concatenated.
	in := &messageSet{
		Item: []*_MessageSet_Item{
			{TypeId: Int32(12345), Message: []byte("hoo")},
			{TypeId: Int32(12345), Message: []byte("hah")},
		},
	}
	b, err := Marshal(in)
	if err != nil {
		t.Fatalf("Marshal: %v", err)
	}
	t.Logf("Marshaled bytes: %q", b)

	var extensions XXX_InternalExtensions
	if err := UnmarshalMessageSet(b, &extensions); err != nil {
		t.Fatalf("UnmarshalMessageSet: %v", err)
	}
	ext, ok := extensions.p.extensionMap[12345]
	if !ok {
		t.Fatalf("Didn't retrieve extension 12345; map is %v", extensions.p.extensionMap)
	}
	// Skip wire type/field number and length varints.
	got := skipVarint(skipVarint(ext.enc))
	if want := []byte("hoohah"); !bytes.Equal(got, want) {
		t.Errorf("Combined extension is %q, want %q", got, want)
	}
}