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206 lines
5.5 KiB
206 lines
5.5 KiB
package consensus
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import (
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"bytes"
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"context"
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"path/filepath"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/tendermint/tendermint/crypto/merkle"
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"github.com/tendermint/tendermint/internal/consensus/types"
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"github.com/tendermint/tendermint/internal/libs/autofile"
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"github.com/tendermint/tendermint/libs/log"
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tmtime "github.com/tendermint/tendermint/libs/time"
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tmtypes "github.com/tendermint/tendermint/types"
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)
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const walTestFlushInterval = 100 * time.Millisecond
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func TestWALTruncate(t *testing.T) {
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walDir := t.TempDir()
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walFile := filepath.Join(walDir, "wal")
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logger := log.TestingLogger()
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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// this magic number 4K can truncate the content when RotateFile.
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// defaultHeadSizeLimit(10M) is hard to simulate.
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// this magic number 1 * time.Millisecond make RotateFile check frequently.
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// defaultGroupCheckDuration(5s) is hard to simulate.
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wal, err := NewWAL(logger, 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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err = wal.Start(ctx)
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require.NoError(t, err)
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t.Cleanup(wal.Wait)
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// 60 block's size nearly 70K, greater than group's headBuf size(4096 * 10),
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// when headBuf is full, truncate content will Flush to the file. at this
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// time, RotateFile is called, truncate content exist in each file.
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err = WALGenerateNBlocks(ctx, t, logger, 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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if err := wal.FlushAndSync(); err != nil {
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t.Error(err)
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}
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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, "expected not to err on height %d", h)
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assert.True(t, found, "expected to find end height for %d", h)
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assert.NotNil(t, gr)
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t.Cleanup(func() { _ = 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, "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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{Time: now, Msg: tmtypes.EventDataRoundState{Height: 1, Round: 1, Step: ""}},
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}
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b := new(bytes.Buffer)
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for _, msg := range msgs {
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msg := msg
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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 TestWALWrite(t *testing.T) {
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walDir := t.TempDir()
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walFile := filepath.Join(walDir, "wal")
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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wal, err := NewWAL(log.TestingLogger(), walFile)
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require.NoError(t, err)
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err = wal.Start(ctx)
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require.NoError(t, err)
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t.Cleanup(wal.Wait)
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// 1) Write returns an error if msg is too big
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msg := &BlockPartMessage{
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Height: 1,
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Round: 1,
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Part: &tmtypes.Part{
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Index: 1,
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Bytes: make([]byte, 1),
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Proof: merkle.Proof{
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Total: 1,
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Index: 1,
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LeafHash: make([]byte, maxMsgSizeBytes-30),
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},
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},
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}
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err = wal.Write(msgInfo{
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Msg: msg,
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})
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if assert.Error(t, err) {
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assert.Contains(t, err.Error(), "msg is too big")
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}
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}
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func TestWALSearchForEndHeight(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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logger := log.NewNopLogger()
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walBody, err := WALWithNBlocks(ctx, t, logger, 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(t, walBody)
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wal, err := NewWAL(logger, walFile)
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require.NoError(t, err)
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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, "expected not to err on height %d", h)
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assert.True(t, found, "expected to find end height for %d", h)
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assert.NotNil(t, gr)
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t.Cleanup(func() { _ = 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, "wrong height")
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}
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func TestWALPeriodicSync(t *testing.T) {
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walDir := t.TempDir()
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walFile := filepath.Join(walDir, "wal")
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wal, err := NewWAL(log.TestingLogger(), walFile, autofile.GroupCheckDuration(1*time.Millisecond))
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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require.NoError(t, err)
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wal.SetFlushInterval(walTestFlushInterval)
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logger := log.NewNopLogger()
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// Generate some data
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err = WALGenerateNBlocks(ctx, t, logger, wal.Group(), 5)
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require.NoError(t, err)
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// We should have data in the buffer now
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assert.NotZero(t, wal.Group().Buffered())
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require.NoError(t, wal.Start(ctx))
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t.Cleanup(func() {
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if err := wal.Stop(); err != nil {
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t.Error(err)
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}
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wal.Wait()
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})
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time.Sleep(walTestFlushInterval + (10 * time.Millisecond))
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// The data should have been flushed by the periodic sync
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assert.Zero(t, wal.Group().Buffered())
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h := int64(4)
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gr, found, err := wal.SearchForEndHeight(h, &WALSearchOptions{})
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assert.NoError(t, err, "expected not to err on height %d", h)
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assert.True(t, found, "expected to find end height for %d", h)
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assert.NotNil(t, gr)
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if gr != nil {
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gr.Close()
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}
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}
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