mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
87 lines
2.5 KiB
Go
87 lines
2.5 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package wal
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import (
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"bytes"
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"hash/crc32"
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"io"
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"io/ioutil"
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"reflect"
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"testing"
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"github.com/coreos/etcd/wal/walpb"
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)
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var (
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infoData = []byte("\b\xef\xfd\x02")
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infoRecord = append([]byte("\x0e\x00\x00\x00\x00\x00\x00\x00\b\x01\x10\x99\xb5\xe4\xd0\x03\x1a\x04"), infoData...)
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)
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func TestReadRecord(t *testing.T) {
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badInfoRecord := make([]byte, len(infoRecord))
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copy(badInfoRecord, infoRecord)
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badInfoRecord[len(badInfoRecord)-1] = 'a'
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tests := []struct {
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data []byte
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wr *walpb.Record
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we error
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}{
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{infoRecord, &walpb.Record{Type: 1, Crc: crc32.Checksum(infoData, crcTable), Data: infoData}, nil},
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{[]byte(""), &walpb.Record{}, io.EOF},
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{infoRecord[:8], &walpb.Record{}, io.ErrUnexpectedEOF},
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{infoRecord[:len(infoRecord)-len(infoData)-8], &walpb.Record{}, io.ErrUnexpectedEOF},
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{infoRecord[:len(infoRecord)-len(infoData)], &walpb.Record{}, io.ErrUnexpectedEOF},
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{infoRecord[:len(infoRecord)-8], &walpb.Record{}, io.ErrUnexpectedEOF},
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{badInfoRecord, &walpb.Record{}, walpb.ErrCRCMismatch},
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}
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rec := &walpb.Record{}
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for i, tt := range tests {
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buf := bytes.NewBuffer(tt.data)
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decoder := newDecoder(ioutil.NopCloser(buf))
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e := decoder.decode(rec)
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if !reflect.DeepEqual(rec, tt.wr) {
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t.Errorf("#%d: block = %v, want %v", i, rec, tt.wr)
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}
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if !reflect.DeepEqual(e, tt.we) {
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t.Errorf("#%d: err = %v, want %v", i, e, tt.we)
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}
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rec = &walpb.Record{}
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}
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}
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func TestWriteRecord(t *testing.T) {
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b := &walpb.Record{}
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typ := int64(0xABCD)
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d := []byte("Hello world!")
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buf := new(bytes.Buffer)
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e := newEncoder(buf, 0, 0)
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e.encode(&walpb.Record{Type: typ, Data: d})
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e.flush()
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decoder := newDecoder(ioutil.NopCloser(buf))
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err := decoder.decode(b)
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if err != nil {
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t.Errorf("err = %v, want nil", err)
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}
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if b.Type != typ {
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t.Errorf("type = %d, want %d", b.Type, typ)
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}
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if !reflect.DeepEqual(b.Data, d) {
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t.Errorf("data = %v, want %v", b.Data, d)
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}
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}
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