server: Move server files to 'server' directory.

26  git mv mvcc wal auth etcdserver etcdmain proxy embed/ lease/ server
   36  git mv go.mod go.sum server

server/wal/record_test.go

@@ -0,0 +1,87 @@
+// Copyright 2015 The etcd Authors
+//
+// 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"
+	"errors"
+	"hash/crc32"
+	"io"
+	"io/ioutil"
+	"reflect"
+	"testing"
+
+	"go.etcd.io/etcd/v3/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 !errors.Is(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, 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)
+	}
+}