/
log_index_test.go
401 lines (302 loc) · 9.08 KB
/
log_index_test.go
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package wallaby
import (
"fmt"
"os"
"path/filepath"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func createTestDir(t *testing.T) string {
dir := "./tests"
err := os.MkdirAll(dir, os.ModeDir|0700)
assert.Nil(t, err, "Test dir could not be created")
return dir
}
func TestIndexRecord(t *testing.T) {
now := time.Now()
unix := now.UnixNano()
index, offset := uint64(0), int64(24)
ir := BasicIndexRecord{unix, index, offset, 0}
// time
assert.Equal(t, unix, ir.Time())
// index
assert.Equal(t, index, ir.Index())
// offset
assert.Equal(t, offset, ir.Offset())
// ttl
assert.False(t, ir.IsExpired())
}
func TestIndexRecordExpired(t *testing.T) {
now := time.Now()
unix := now.UnixNano()
index, offset := uint64(0), int64(24)
ir := BasicIndexRecord{unix, index, offset, 20}
// time
assert.Equal(t, unix, ir.Time())
// index
assert.Equal(t, index, ir.Index())
// offset
assert.Equal(t, offset, ir.Offset())
// ttl
assert.True(t, true, ir.IsExpired())
}
func TestIndexRecordEncodeDecode(t *testing.T) {
now := time.Now()
unix := now.UnixNano()
index, offset := uint64(0), int64(24)
ir := BasicIndexRecord{unix, index, offset, 0}
encoder := NewIndexRecordEncoder()
decoder := NewIndexRecordDecoder()
buffer := encoder.Encode(ir)
record, err := decoder.Decode(buffer)
assert.Nil(t, err)
// time
assert.Equal(t, ir.Time(), record.Time())
// index
assert.Equal(t, ir.Index(), record.Index())
// offset
assert.Equal(t, ir.Offset(), record.Offset())
// ttl
assert.Equal(t, ir.TimeToLive(), record.TimeToLive())
assert.False(t, ir.IsExpired())
assert.False(t, record.IsExpired())
}
func TestIndexRecordEncodeDecodeExpired(t *testing.T) {
now := time.Now()
unix := now.UnixNano()
index, offset := uint64(0), int64(24)
ir := BasicIndexRecord{unix, index, offset, 1}
encoder := NewIndexRecordEncoder()
decoder := NewIndexRecordDecoder()
buffer := encoder.Encode(ir)
record, err := decoder.Decode(buffer)
assert.Nil(t, err)
// time
assert.Equal(t, ir.Time(), record.Time())
// index
assert.Equal(t, ir.Index(), record.Index())
// offset
assert.Equal(t, ir.Offset(), record.Offset())
// ttl
assert.Equal(t, ir.TimeToLive(), record.TimeToLive())
assert.True(t, ir.IsExpired())
assert.True(t, record.IsExpired())
}
func TestIndexRecordDecode(t *testing.T) {
decoder := NewIndexRecordDecoder()
buffer := make([]byte, 31)
record, err := decoder.Decode(buffer)
assert.Nil(t, record)
assert.Equal(t, err, ErrInvalidRecordSize)
}
func TestVersionOneIndexRecordInvalidBuffer(t *testing.T) {
var buffer []byte
ir := versionOneIndexRecord{&buffer, 0}
// time
assert.Equal(t, int64(0), ir.Time())
// index
assert.Equal(t, uint64(0), ir.Index())
// offset
assert.Equal(t, int64(0), ir.Offset())
// ttl
assert.Equal(t, int64(0), ir.TimeToLive())
assert.False(t, ir.IsExpired())
}
func TestIndexHeader(t *testing.T) {
var version uint8 = 128
var flags uint32 = 0x377
ih := BasicFileHeader{version, flags}
// version
assert.Equal(t, version, ih.Version())
// flags
assert.Equal(t, flags, ih.Flags())
}
func TestVersionOneCreateIndex(t *testing.T) {
dir := createTestDir(t)
// open index file
indexfile := filepath.Join(dir, "test001.idx")
// delete prior test file
err := os.Remove(indexfile)
if err != nil && !os.IsNotExist(err) {
t.Error(err)
}
// create index factory
index, err := VersionOneIndexFactory(indexfile, VersionOne, DefaultIndexFlags)
assert.NotNil(t, index, "Index file could not be created")
assert.Nil(t, err, "CreateIndex produced an error")
// stat file header size
info, err := os.Stat(indexfile)
assert.Nil(t, err, "os.Stat call resulted in error")
assert.Equal(t, 8, info.Size(), "Invalid header size")
// test header
header := index.Header()
assert.Equal(t, 1, int(header.Version()))
assert.Equal(t, uint32(DefaultIndexFlags), header.Flags())
// test Size
size := index.Size()
assert.Equal(t, 0, int(size))
}
func TestVersionOneCreateIndexExisting(t *testing.T) {
dir := createTestDir(t)
// open index file
indexfile := filepath.Join(dir, "test002.idx")
// delete prior test file
err := os.Remove(indexfile)
if err != nil && !os.IsNotExist(err) {
t.Error(err)
}
// create index factory
index, err := VersionOneIndexFactory(indexfile, VersionOne, DefaultIndexFlags)
index.Close()
// test header
header := index.Header()
assert.Equal(t, 1, int(header.Version()))
assert.Equal(t, uint32(DefaultIndexFlags), header.Flags())
// test Size
size := index.Size()
assert.Equal(t, 0, int(size))
}
func TestVersionOneIndexAppend(t *testing.T) {
dir := createTestDir(t)
// open index file
indexfile := filepath.Join(dir, "test003.idx")
// delete prior test file
err := os.Remove(indexfile)
if err != nil && !os.IsNotExist(err) {
t.Error(err)
}
// create index factory
index, err := VersionOneIndexFactory(indexfile, VersionOne, DefaultIndexFlags)
// test index file
assert.NotNil(t, index, "Index file could not be created")
assert.Nil(t, err, "CreateIndex produced an error")
unix := time.Now().UnixNano()
i, offset := uint64(0), int64(24)
record := BasicIndexRecord{unix, i, offset, 0}
rencoder := NewIndexRecordEncoder()
n, err := index.Write(rencoder.Encode(record))
assert.Equal(t, VersionOneIndexRecordSize, n, "Invalid index record size")
size := index.Size()
assert.Equal(t, 1, int(size))
for i := 2; i < 10; i++ {
unix = time.Now().UnixNano()
offset = int64(24)
record := BasicIndexRecord{unix, uint64(i + 1), offset, 0}
n, err := index.Write(rencoder.Encode(record))
assert.Equal(t, VersionOneIndexRecordSize, int(n), "Invalid index record size")
assert.Nil(t, err)
size := index.Size()
assert.Equal(t, i, int(size))
}
}
func TestVersionOneIndexSlice(t *testing.T) {
dir := createTestDir(t)
// open index file
indexfile := filepath.Join(dir, "test004.idx")
// delete prior test file
err := os.Remove(indexfile)
if err != nil && !os.IsNotExist(err) {
t.Error(err)
}
// create index factory
index, err := VersionOneIndexFactory(indexfile, VersionOne, DefaultIndexFlags)
// out of range as offset is greater than size
slice, err := index.Slice(1, 1)
assert.Nil(t, slice, "Slice should be nil for invalid offset")
assert.NotNil(t, err, "Expected ErrSliceOufOfBounds")
// limit cannot be 0
slice, err = index.Slice(1, 0)
assert.Nil(t, slice, "Slice should be nil for invalid limit")
assert.NotNil(t, err, "Expected ErrSliceOufOfBounds")
// append records
rencoder := NewIndexRecordEncoder()
for i := 0; i < 100; i++ {
unix := time.Now().UnixNano()
offset := int64(24*i + 8)
record := BasicIndexRecord{unix, uint64(i), offset, 0}
index.Write(rencoder.Encode(record))
}
index.Flush()
fmt.Println(index.Size())
// read Slice and verify size
slice, err = index.Slice(0, 5)
assert.Equal(t, 5, slice.Size(), "Slice should contain 5 index records")
var unix int64
for i := 0; i < slice.Size(); i++ {
// get slice record
record, err := slice.Get(i)
assert.Nil(t, err, "Get should not produce an error")
assert.Equal(t, int64(24*i+8), record.Offset(), "Record offset should equal 24")
assert.Equal(t, uint64(i), record.Index(), "Invalid record index")
assert.True(t, record.Time() > unix, "Each record's time should be greater than the last")
unix = record.Time()
}
// close file
index.Close()
}
func BenchmarkIndexAdd(b *testing.B) {
dir := "./tests"
os.MkdirAll(dir, os.ModeDir|0700)
// open index file
indexfile := filepath.Join(dir, "bench001.idx")
// delete prior test file
err := os.Remove(indexfile)
if err != nil && !os.IsNotExist(err) {
b.Error(err)
}
// create index factory
index, err := VersionOneIndexFactory(indexfile, VersionOne, DefaultIndexFlags)
rencoder := NewIndexRecordEncoder()
// var unix, offset int64
var record BasicIndexRecord
b.ResetTimer()
for i := 0; i < b.N; i++ {
record.nanos = time.Now().UnixNano()
record.index = uint64(i)
index.Write(rencoder.Encode(record))
}
// flush to disk and close file
index.Close()
// stat file header size
// info, err := os.Stat(indexfile)
// b.Logf("Filesize: %d", info.Size())
// number of bytes per iteration
b.SetBytes(VersionOneIndexRecordSize)
}
// func BenchmarkIndexSlice(b *testing.B) {
// dir := "./tests"
// os.MkdirAll(dir, os.ModeDir|0700)
// // open index file
// indexfile := filepath.Join(dir, "bench002.idx")
// // delete prior test file
// err := os.Remove(indexfile)
// if err != nil && !os.IsNotExist(err) {
// b.Error(err)
// }
// // create index factory
// index, err := VersionOneIndexFactory(indexfile, VersionOne, DefaultIndexFlags)
// // append records
// for i := 0; i < b.N; i++ {
// unix := time.Now().UnixNano()
// offset := int64(24*i + 8)
// record := BasicIndexRecord{unix, uint64(i), offset, 0}
// index.Append(record)
// }
// index.Flush()
// b.ResetTimer()
// // read slice
// var read int
// for read < b.N {
// index.Slice(int64(read), int64(MaximumIndexSlice))
// read += MaximumIndexSlice
// // read += slice.Size()
// }
// // for i := 0; i < slice.Size(); i++ {
// // slice.Get(i)
// // }
// // close file
// index.Close()
// // number of bytes per iteration
// b.SetBytes(VersionOneIndexRecordSize)
// }