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// Protocol Buffers for Go with Gadgets
//
// Copyright (c) 2013, The GoGo Authors. All rights reserved.
// http://github.com/gogo/protobuf
//
// Redistribution and use in source and binary forms, with or without
// 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.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package protoio_test
import (
"bytes"
"encoding/binary"
"fmt"
"io"
"math/rand"
"testing"
"time"
"github.com/gogo/protobuf/proto"
"github.com/gogo/protobuf/test"
"github.com/stretchr/testify/require"
"github.com/tendermint/tendermint/internal/libs/protoio"
)
func iotest(writer protoio.WriteCloser, reader protoio.ReadCloser) error {
varint := make([]byte, binary.MaxVarintLen64)
size := 1000
msgs := make([]*test.NinOptNative, size)
lens := make([]int, size)
r := rand.New(rand.NewSource(time.Now().UnixNano()))
for i := range msgs {
msgs[i] = test.NewPopulatedNinOptNative(r, true)
// issue 31
if i == 5 {
msgs[i] = &test.NinOptNative{}
}
// issue 31
if i == 999 {
msgs[i] = &test.NinOptNative{}
}
// FIXME Check size
bz, err := proto.Marshal(msgs[i])
if err != nil {
return err
}
visize := binary.PutUvarint(varint, uint64(len(bz)))
n, err := writer.WriteMsg(msgs[i])
if err != nil {
return err
}
if n != len(bz)+visize {
return fmt.Errorf("WriteMsg() wrote %v bytes, expected %v", n, len(bz)+visize) // nolint
}
lens[i] = n
}
if err := writer.Close(); err != nil {
return err
}
i := 0
for {
msg := &test.NinOptNative{}
if n, err := reader.ReadMsg(msg); err != nil {
if err == io.EOF {
break
}
return err
} else if n != lens[i] {
return fmt.Errorf("read %v bytes, expected %v", n, lens[i])
}
if err := msg.VerboseEqual(msgs[i]); err != nil {
return err
}
i++
}
if i != size {
panic("not enough messages read")
}
if err := reader.Close(); err != nil {
return err
}
return nil
}
type buffer struct {
*bytes.Buffer
closed bool
}
func (b *buffer) Close() error {
b.closed = true
return nil
}
func newBuffer() *buffer {
return &buffer{bytes.NewBuffer(nil), false}
}
func TestVarintNormal(t *testing.T) {
buf := newBuffer()
writer := protoio.NewDelimitedWriter(buf)
reader := protoio.NewDelimitedReader(buf, 1024*1024)
err := iotest(writer, reader)
require.NoError(t, err)
require.True(t, buf.closed, "did not close buffer")
}
func TestVarintNoClose(t *testing.T) {
buf := bytes.NewBuffer(nil)
writer := protoio.NewDelimitedWriter(buf)
reader := protoio.NewDelimitedReader(buf, 1024*1024)
err := iotest(writer, reader)
require.NoError(t, err)
}
// issue 32
func TestVarintMaxSize(t *testing.T) {
buf := newBuffer()
writer := protoio.NewDelimitedWriter(buf)
reader := protoio.NewDelimitedReader(buf, 20)
err := iotest(writer, reader)
require.Error(t, err)
}
func TestVarintError(t *testing.T) {
buf := newBuffer()
buf.Write([]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f})
reader := protoio.NewDelimitedReader(buf, 1024*1024)
msg := &test.NinOptNative{}
n, err := reader.ReadMsg(msg)
require.Error(t, err)
require.Equal(t, 10, n)
}
func TestVarintTruncated(t *testing.T) {
buf := newBuffer()
buf.Write([]byte{0xff, 0xff})
reader := protoio.NewDelimitedReader(buf, 1024*1024)
msg := &test.NinOptNative{}
n, err := reader.ReadMsg(msg)
require.Error(t, err)
require.Equal(t, 2, n)
}
func TestShort(t *testing.T) {
buf := newBuffer()
varintBuf := make([]byte, binary.MaxVarintLen64)
varintLen := binary.PutUvarint(varintBuf, 100)
_, err := buf.Write(varintBuf[:varintLen])
require.NoError(t, err)
bz, err := proto.Marshal(&test.NinOptNative{Field15: []byte{0x01, 0x02, 0x03}})
require.NoError(t, err)
buf.Write(bz)
reader := protoio.NewDelimitedReader(buf, 1024*1024)
require.NoError(t, err)
msg := &test.NinOptNative{}
n, err := reader.ReadMsg(msg)
require.Error(t, err)
require.Equal(t, varintLen+len(bz), n)
}