https://github.com/coreos/etcd
Tip revision: dc3e02728863044a793666b258be8a32f2929061 authored by Yicheng Qin on 28 August 2015, 17:26:32 UTC
*: bump to v2.2.0-rc.0
*: bump to v2.2.0-rc.0
Tip revision: dc3e027
record_test.go
// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package wal
import (
"bytes"
"hash/crc32"
"io"
"io/ioutil"
"reflect"
"testing"
"github.com/coreos/etcd/wal/walpb"
)
var (
infoData = []byte("\b\xef\xfd\x02")
infoRecord = append([]byte("\x0e\x00\x00\x00\x00\x00\x00\x00\b\x01\x10\x99\xb5\xe4\xd0\x03\x1a\x04"), infoData...)
)
func TestReadRecord(t *testing.T) {
badInfoRecord := make([]byte, len(infoRecord))
copy(badInfoRecord, infoRecord)
badInfoRecord[len(badInfoRecord)-1] = 'a'
tests := []struct {
data []byte
wr *walpb.Record
we error
}{
{infoRecord, &walpb.Record{Type: 1, Crc: crc32.Checksum(infoData, crcTable), Data: infoData}, nil},
{[]byte(""), &walpb.Record{}, io.EOF},
{infoRecord[:8], &walpb.Record{}, io.ErrUnexpectedEOF},
{infoRecord[:len(infoRecord)-len(infoData)-8], &walpb.Record{}, io.ErrUnexpectedEOF},
{infoRecord[:len(infoRecord)-len(infoData)], &walpb.Record{}, io.ErrUnexpectedEOF},
{infoRecord[:len(infoRecord)-8], &walpb.Record{}, io.ErrUnexpectedEOF},
{badInfoRecord, &walpb.Record{}, walpb.ErrCRCMismatch},
}
rec := &walpb.Record{}
for i, tt := range tests {
buf := bytes.NewBuffer(tt.data)
decoder := newDecoder(ioutil.NopCloser(buf))
e := decoder.decode(rec)
if !reflect.DeepEqual(rec, tt.wr) {
t.Errorf("#%d: block = %v, want %v", i, rec, tt.wr)
}
if !reflect.DeepEqual(e, tt.we) {
t.Errorf("#%d: err = %v, want %v", i, e, tt.we)
}
rec = &walpb.Record{}
}
}
func TestWriteRecord(t *testing.T) {
b := &walpb.Record{}
typ := int64(0xABCD)
d := []byte("Hello world!")
buf := new(bytes.Buffer)
e := newEncoder(buf, 0)
e.encode(&walpb.Record{Type: typ, Data: d})
e.flush()
decoder := newDecoder(ioutil.NopCloser(buf))
err := decoder.decode(b)
if err != nil {
t.Errorf("err = %v, want nil", err)
}
if b.Type != typ {
t.Errorf("type = %d, want %d", b.Type, typ)
}
if !reflect.DeepEqual(b.Data, d) {
t.Errorf("data = %v, want %v", b.Data, d)
}
}