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187 lines
4.8 KiB
187 lines
4.8 KiB
package consensus
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import (
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"bytes"
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"crypto/rand"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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// "sync"
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"testing"
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"time"
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"github.com/tendermint/tendermint/consensus/types"
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"github.com/tendermint/tendermint/libs/autofile"
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"github.com/tendermint/tendermint/libs/log"
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tmtypes "github.com/tendermint/tendermint/types"
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tmtime "github.com/tendermint/tendermint/types/time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestWALTruncate(t *testing.T) {
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walDir, err := ioutil.TempDir("", "wal")
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require.NoError(t, err)
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defer os.RemoveAll(walDir)
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walFile := filepath.Join(walDir, "wal")
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//this magic number 4K can truncate the content when RotateFile. defaultHeadSizeLimit(10M) is hard to simulate.
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//this magic number 1 * time.Millisecond make RotateFile check frequently. defaultGroupCheckDuration(5s) is hard to simulate.
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wal, err := NewWAL(walFile,
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autofile.GroupHeadSizeLimit(4096),
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autofile.GroupCheckDuration(1*time.Millisecond),
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)
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require.NoError(t, err)
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wal.SetLogger(log.TestingLogger())
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err = wal.Start()
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require.NoError(t, err)
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defer func() {
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wal.Stop()
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// wait for the wal to finish shutting down so we
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// can safely remove the directory
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wal.Wait()
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}()
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//60 block's size nearly 70K, greater than group's headBuf size(4096 * 10), when headBuf is full, truncate content will Flush to the file.
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//at this time, RotateFile is called, truncate content exist in each file.
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err = WALGenerateNBlocks(wal.Group(), 60)
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require.NoError(t, err)
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time.Sleep(1 * time.Millisecond) //wait groupCheckDuration, make sure RotateFile run
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wal.Group().Flush()
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h := int64(50)
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gr, found, err := wal.SearchForEndHeight(h, &WALSearchOptions{})
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assert.NoError(t, err, fmt.Sprintf("expected not to err on height %d", h))
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assert.True(t, found, fmt.Sprintf("expected to find end height for %d", h))
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assert.NotNil(t, gr, "expected group not to be nil")
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defer gr.Close()
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dec := NewWALDecoder(gr)
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msg, err := dec.Decode()
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assert.NoError(t, err, "expected to decode a message")
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rs, ok := msg.Msg.(tmtypes.EventDataRoundState)
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assert.True(t, ok, "expected message of type EventDataRoundState")
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assert.Equal(t, rs.Height, h+1, fmt.Sprintf("wrong height"))
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}
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func TestWALEncoderDecoder(t *testing.T) {
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now := tmtime.Now()
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msgs := []TimedWALMessage{
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{Time: now, Msg: EndHeightMessage{0}},
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{Time: now, Msg: timeoutInfo{Duration: time.Second, Height: 1, Round: 1, Step: types.RoundStepPropose}},
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}
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b := new(bytes.Buffer)
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for _, msg := range msgs {
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b.Reset()
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enc := NewWALEncoder(b)
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err := enc.Encode(&msg)
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require.NoError(t, err)
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dec := NewWALDecoder(b)
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decoded, err := dec.Decode()
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require.NoError(t, err)
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assert.Equal(t, msg.Time.UTC(), decoded.Time)
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assert.Equal(t, msg.Msg, decoded.Msg)
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}
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}
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func TestWALSearchForEndHeight(t *testing.T) {
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walBody, err := WALWithNBlocks(6)
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if err != nil {
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t.Fatal(err)
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}
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walFile := tempWALWithData(walBody)
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wal, err := NewWAL(walFile)
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require.NoError(t, err)
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wal.SetLogger(log.TestingLogger())
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h := int64(3)
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gr, found, err := wal.SearchForEndHeight(h, &WALSearchOptions{})
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assert.NoError(t, err, fmt.Sprintf("expected not to err on height %d", h))
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assert.True(t, found, fmt.Sprintf("expected to find end height for %d", h))
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assert.NotNil(t, gr, "expected group not to be nil")
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defer gr.Close()
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dec := NewWALDecoder(gr)
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msg, err := dec.Decode()
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assert.NoError(t, err, "expected to decode a message")
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rs, ok := msg.Msg.(tmtypes.EventDataRoundState)
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assert.True(t, ok, "expected message of type EventDataRoundState")
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assert.Equal(t, rs.Height, h+1, fmt.Sprintf("wrong height"))
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}
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/*
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var initOnce sync.Once
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func registerInterfacesOnce() {
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initOnce.Do(func() {
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var _ = wire.RegisterInterface(
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struct{ WALMessage }{},
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wire.ConcreteType{[]byte{}, 0x10},
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)
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})
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}
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*/
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func nBytes(n int) []byte {
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buf := make([]byte, n)
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n, _ = rand.Read(buf)
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return buf[:n]
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}
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func benchmarkWalDecode(b *testing.B, n int) {
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// registerInterfacesOnce()
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buf := new(bytes.Buffer)
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enc := NewWALEncoder(buf)
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data := nBytes(n)
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enc.Encode(&TimedWALMessage{Msg: data, Time: time.Now().Round(time.Second).UTC()})
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encoded := buf.Bytes()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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buf.Reset()
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buf.Write(encoded)
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dec := NewWALDecoder(buf)
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if _, err := dec.Decode(); err != nil {
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b.Fatal(err)
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}
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}
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b.ReportAllocs()
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}
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func BenchmarkWalDecode512B(b *testing.B) {
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benchmarkWalDecode(b, 512)
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}
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func BenchmarkWalDecode10KB(b *testing.B) {
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benchmarkWalDecode(b, 10*1024)
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}
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func BenchmarkWalDecode100KB(b *testing.B) {
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benchmarkWalDecode(b, 100*1024)
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}
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func BenchmarkWalDecode1MB(b *testing.B) {
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benchmarkWalDecode(b, 1024*1024)
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}
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func BenchmarkWalDecode10MB(b *testing.B) {
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benchmarkWalDecode(b, 10*1024*1024)
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}
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func BenchmarkWalDecode100MB(b *testing.B) {
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benchmarkWalDecode(b, 100*1024*1024)
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}
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func BenchmarkWalDecode1GB(b *testing.B) {
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benchmarkWalDecode(b, 1024*1024*1024)
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}
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