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package store
import (
"fmt"
stdlog "log"
"os"
"runtime/debug"
"strings"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
dbm "github.com/tendermint/tm-db"
"github.com/tendermint/tendermint/config"
"github.com/tendermint/tendermint/crypto"
sm "github.com/tendermint/tendermint/internal/state"
"github.com/tendermint/tendermint/internal/state/test/factory"
"github.com/tendermint/tendermint/libs/log"
tmrand "github.com/tendermint/tendermint/libs/rand"
tmtime "github.com/tendermint/tendermint/libs/time"
"github.com/tendermint/tendermint/types"
"github.com/tendermint/tendermint/version"
)
// A cleanupFunc cleans up any config / test files created for a particular
// test.
type cleanupFunc func()
// make a Commit with a single vote containing just the height and a timestamp
func makeTestCommit(height int64, timestamp time.Time) *types.Commit {
commitSigs := []types.CommitSig{{
BlockIDFlag: types.BlockIDFlagCommit,
ValidatorAddress: tmrand.Bytes(crypto.AddressSize),
Timestamp: timestamp,
Signature: []byte("Signature"),
}}
return types.NewCommit(
height,
0,
types.BlockID{
Hash: crypto.CRandBytes(32),
PartSetHeader: types.PartSetHeader{Hash: crypto.CRandBytes(32), Total: 2},
},
commitSigs)
}
func makeStateAndBlockStore(logger log.Logger) (sm.State, *BlockStore, cleanupFunc, error) {
cfg, err := config.ResetTestRoot("blockchain_reactor_test")
if err != nil {
return sm.State{}, nil, nil, err
}
blockDB := dbm.NewMemDB()
state, err := sm.MakeGenesisStateFromFile(cfg.GenesisFile())
if err != nil {
return sm.State{}, nil, nil, fmt.Errorf("error constructing state from genesis file: %w", err)
}
return state, NewBlockStore(blockDB), func() { os.RemoveAll(cfg.RootDir) }, nil
}
func freshBlockStore() (*BlockStore, dbm.DB) {
db := dbm.NewMemDB()
return NewBlockStore(db), db
}
var (
state sm.State
block *types.Block
partSet *types.PartSet
part1 *types.Part
part2 *types.Part
seenCommit1 *types.Commit
)
func TestMain(m *testing.M) {
var cleanup cleanupFunc
var err error
state, _, cleanup, err = makeStateAndBlockStore(log.NewNopLogger())
if err != nil {
stdlog.Fatal(err)
}
block, err = factory.MakeBlock(state, 1, new(types.Commit))
if err != nil {
stdlog.Fatal(err)
}
partSet, err = block.MakePartSet(2)
if err != nil {
stdlog.Fatal(err)
}
part1 = partSet.GetPart(0)
part2 = partSet.GetPart(1)
seenCommit1 = makeTestCommit(10, tmtime.Now())
code := m.Run()
cleanup()
os.Exit(code)
}
// TODO: This test should be simplified ...
func TestBlockStoreSaveLoadBlock(t *testing.T) {
state, bs, cleanup, err := makeStateAndBlockStore(log.NewNopLogger())
defer cleanup()
require.NoError(t, err)
require.Equal(t, bs.Base(), int64(0), "initially the base should be zero")
require.Equal(t, bs.Height(), int64(0), "initially the height should be zero")
// check there are no blocks at various heights
noBlockHeights := []int64{0, -1, 100, 1000, 2}
for i, height := range noBlockHeights {
if g := bs.LoadBlock(height); g != nil {
t.Errorf("#%d: height(%d) got a block; want nil", i, height)
}
}
// save a block
block, err := factory.MakeBlock(state, bs.Height()+1, new(types.Commit))
require.NoError(t, err)
validPartSet, err := block.MakePartSet(2)
require.NoError(t, err)
seenCommit := makeTestCommit(10, tmtime.Now())
bs.SaveBlock(block, partSet, seenCommit)
require.EqualValues(t, 1, bs.Base(), "expecting the new height to be changed")
require.EqualValues(t, block.Header.Height, bs.Height(), "expecting the new height to be changed")
incompletePartSet := types.NewPartSetFromHeader(types.PartSetHeader{Total: 2})
uncontiguousPartSet := types.NewPartSetFromHeader(types.PartSetHeader{Total: 0})
_, err = uncontiguousPartSet.AddPart(part2)
require.Error(t, err)
header1 := types.Header{
Version: version.Consensus{Block: version.BlockProtocol},
Height: 1,
ChainID: "block_test",
Time: tmtime.Now(),
ProposerAddress: tmrand.Bytes(crypto.AddressSize),
}
// End of setup, test data
commitAtH10 := makeTestCommit(10, tmtime.Now())
tuples := []struct {
block *types.Block
parts *types.PartSet
seenCommit *types.Commit
wantPanic string
wantErr bool
corruptBlockInDB bool
corruptCommitInDB bool
corruptSeenCommitInDB bool
eraseCommitInDB bool
eraseSeenCommitInDB bool
}{
{
block: newBlock(header1, commitAtH10),
parts: validPartSet,
seenCommit: seenCommit1,
},
{
block: nil,
wantPanic: "only save a non-nil block",
},
{
block: newBlock( // New block at height 5 in empty block store is fine
types.Header{
Version: version.Consensus{Block: version.BlockProtocol},
Height: 5,
ChainID: "block_test",
Time: tmtime.Now(),
ProposerAddress: tmrand.Bytes(crypto.AddressSize)},
makeTestCommit(5, tmtime.Now()),
),
parts: validPartSet,
seenCommit: makeTestCommit(5, tmtime.Now()),
},
{
block: newBlock(header1, commitAtH10),
parts: incompletePartSet,
wantPanic: "only save complete block", // incomplete parts
},
{
block: newBlock(header1, commitAtH10),
parts: validPartSet,
seenCommit: seenCommit1,
corruptCommitInDB: true, // Corrupt the DB's commit entry
wantPanic: "error reading block commit",
},
{
block: newBlock(header1, commitAtH10),
parts: validPartSet,
seenCommit: seenCommit1,
wantPanic: "unmarshal to tmproto.BlockMeta",
corruptBlockInDB: true, // Corrupt the DB's block entry
},
{
block: newBlock(header1, commitAtH10),
parts: validPartSet,
seenCommit: seenCommit1,
// Expecting no error and we want a nil back
eraseSeenCommitInDB: true,
},
{
block: newBlock(header1, commitAtH10),
parts: validPartSet,
seenCommit: seenCommit1,
corruptSeenCommitInDB: true,
wantPanic: "error reading block seen commit",
},
{
block: newBlock(header1, commitAtH10),
parts: validPartSet,
seenCommit: seenCommit1,
// Expecting no error and we want a nil back
eraseCommitInDB: true,
},
}
type quad struct {
block *types.Block
commit *types.Commit
meta *types.BlockMeta
seenCommit *types.Commit
}
for i, tuple := range tuples {
tuple := tuple
bs, db := freshBlockStore()
// SaveBlock
res, err, panicErr := doFn(func() (interface{}, error) {
bs.SaveBlock(tuple.block, tuple.parts, tuple.seenCommit)
if tuple.block == nil {
return nil, nil
}
if tuple.corruptBlockInDB {
err := db.Set(blockMetaKey(tuple.block.Height), []byte("block-bogus"))
require.NoError(t, err)
}
bBlock := bs.LoadBlock(tuple.block.Height)
bBlockMeta := bs.LoadBlockMeta(tuple.block.Height)
if tuple.eraseSeenCommitInDB {
err := db.Delete(seenCommitKey())
require.NoError(t, err)
}
if tuple.corruptSeenCommitInDB {
err := db.Set(seenCommitKey(), []byte("bogus-seen-commit"))
require.NoError(t, err)
}
bSeenCommit := bs.LoadSeenCommit()
commitHeight := tuple.block.Height - 1
if tuple.eraseCommitInDB {
err := db.Delete(blockCommitKey(commitHeight))
require.NoError(t, err)
}
if tuple.corruptCommitInDB {
err := db.Set(blockCommitKey(commitHeight), []byte("foo-bogus"))
require.NoError(t, err)
}
bCommit := bs.LoadBlockCommit(commitHeight)
return &quad{block: bBlock, seenCommit: bSeenCommit, commit: bCommit,
meta: bBlockMeta}, nil
})
if subStr := tuple.wantPanic; subStr != "" {
if panicErr == nil {
t.Errorf("#%d: want a non-nil panic", i)
} else if got := fmt.Sprintf("%#v", panicErr); !strings.Contains(got, subStr) {
t.Errorf("#%d:\n\tgotErr: %q\nwant substring: %q", i, got, subStr)
}
continue
}
if tuple.wantErr {
if err == nil {
t.Errorf("#%d: got nil error", i)
}
continue
}
assert.Nil(t, panicErr, "#%d: unexpected panic", i)
assert.NoError(t, err, "#%d: expecting a non-nil error", i)
qua, ok := res.(*quad)
if !ok || qua == nil {
t.Errorf("#%d: got nil quad back; gotType=%T", i, res)
continue
}
if tuple.eraseSeenCommitInDB {
assert.Nil(t, qua.seenCommit,
"erased the seenCommit in the DB hence we should get back a nil seenCommit")
}
if tuple.eraseCommitInDB {
assert.Nil(t, qua.commit,
"erased the commit in the DB hence we should get back a nil commit")
}
}
}
func TestLoadBaseMeta(t *testing.T) {
cfg, err := config.ResetTestRoot("blockchain_reactor_test")
require.NoError(t, err)
defer os.RemoveAll(cfg.RootDir)
state, err := sm.MakeGenesisStateFromFile(cfg.GenesisFile())
require.NoError(t, err)
bs := NewBlockStore(dbm.NewMemDB())
for h := int64(1); h <= 10; h++ {
block, err := factory.MakeBlock(state, h, new(types.Commit))
require.NoError(t, err)
partSet, err := block.MakePartSet(2)
require.NoError(t, err)
seenCommit := makeTestCommit(h, tmtime.Now())
bs.SaveBlock(block, partSet, seenCommit)
}
pruned, err := bs.PruneBlocks(4)
require.NoError(t, err)
assert.EqualValues(t, 3, pruned)
baseBlock := bs.LoadBaseMeta()
assert.EqualValues(t, 4, baseBlock.Header.Height)
assert.EqualValues(t, 4, bs.Base())
}
func TestLoadBlockPart(t *testing.T) {
bs, db := freshBlockStore()
height, index := int64(10), 1
loadPart := func() (interface{}, error) {
part := bs.LoadBlockPart(height, index)
return part, nil
}
// Initially no contents.
// 1. Requesting for a non-existent block shouldn't fail
res, _, panicErr := doFn(loadPart)
require.Nil(t, panicErr, "a non-existent block part shouldn't cause a panic")
require.Nil(t, res, "a non-existent block part should return nil")
// 2. Next save a corrupted block then try to load it
err := db.Set(blockPartKey(height, index), []byte("Tendermint"))
require.NoError(t, err)
res, _, panicErr = doFn(loadPart)
require.NotNil(t, panicErr, "expecting a non-nil panic")
require.Contains(t, panicErr.Error(), "unmarshal to tmproto.Part failed")
// 3. A good block serialized and saved to the DB should be retrievable
pb1, err := part1.ToProto()
require.NoError(t, err)
err = db.Set(blockPartKey(height, index), mustEncode(pb1))
require.NoError(t, err)
gotPart, _, panicErr := doFn(loadPart)
require.Nil(t, panicErr, "an existent and proper block should not panic")
require.Nil(t, res, "a properly saved block should return a proper block")
require.Equal(t, gotPart.(*types.Part), part1,
"expecting successful retrieval of previously saved block")
}
func TestPruneBlocks(t *testing.T) {
cfg, err := config.ResetTestRoot("blockchain_reactor_test")
require.NoError(t, err)
defer os.RemoveAll(cfg.RootDir)
state, err := sm.MakeGenesisStateFromFile(cfg.GenesisFile())
require.NoError(t, err)
db := dbm.NewMemDB()
bs := NewBlockStore(db)
assert.EqualValues(t, 0, bs.Base())
assert.EqualValues(t, 0, bs.Height())
assert.EqualValues(t, 0, bs.Size())
_, err = bs.PruneBlocks(0)
require.Error(t, err)
// make more than 1000 blocks, to test batch deletions
for h := int64(1); h <= 1500; h++ {
block, err := factory.MakeBlock(state, h, new(types.Commit))
require.NoError(t, err)
partSet, err := block.MakePartSet(2)
require.NoError(t, err)
seenCommit := makeTestCommit(h, tmtime.Now())
bs.SaveBlock(block, partSet, seenCommit)
}
assert.EqualValues(t, 1, bs.Base())
assert.EqualValues(t, 1500, bs.Height())
assert.EqualValues(t, 1500, bs.Size())
prunedBlock := bs.LoadBlock(1199)
// Check that basic pruning works
pruned, err := bs.PruneBlocks(1200)
require.NoError(t, err)
assert.EqualValues(t, 1199, pruned)
assert.EqualValues(t, 1200, bs.Base())
assert.EqualValues(t, 1500, bs.Height())
assert.EqualValues(t, 301, bs.Size())
require.NotNil(t, bs.LoadBlock(1200))
require.Nil(t, bs.LoadBlock(1199))
require.Nil(t, bs.LoadBlockByHash(prunedBlock.Hash()))
require.Nil(t, bs.LoadBlockCommit(1199))
require.Nil(t, bs.LoadBlockMeta(1199))
require.Nil(t, bs.LoadBlockPart(1199, 1))
for i := int64(1); i < 1200; i++ {
require.Nil(t, bs.LoadBlock(i))
}
for i := int64(1200); i <= 1500; i++ {
require.NotNil(t, bs.LoadBlock(i))
}
// Pruning below the current base should not error
_, err = bs.PruneBlocks(1199)
require.NoError(t, err)
// Pruning to the current base should work
pruned, err = bs.PruneBlocks(1200)
require.NoError(t, err)
assert.EqualValues(t, 0, pruned)
// Pruning again should work
pruned, err = bs.PruneBlocks(1300)
require.NoError(t, err)
assert.EqualValues(t, 100, pruned)
assert.EqualValues(t, 1300, bs.Base())
// Pruning beyond the current height should error
_, err = bs.PruneBlocks(1501)
require.Error(t, err)
// Pruning to the current height should work
pruned, err = bs.PruneBlocks(1500)
require.NoError(t, err)
assert.EqualValues(t, 200, pruned)
assert.Nil(t, bs.LoadBlock(1499))
assert.NotNil(t, bs.LoadBlock(1500))
assert.Nil(t, bs.LoadBlock(1501))
}
func TestLoadBlockMeta(t *testing.T) {
bs, db := freshBlockStore()
height := int64(10)
loadMeta := func() (interface{}, error) {
meta := bs.LoadBlockMeta(height)
return meta, nil
}
// Initially no contents.
// 1. Requesting for a non-existent blockMeta shouldn't fail
res, _, panicErr := doFn(loadMeta)
require.Nil(t, panicErr, "a non-existent blockMeta shouldn't cause a panic")
require.Nil(t, res, "a non-existent blockMeta should return nil")
// 2. Next save a corrupted blockMeta then try to load it
err := db.Set(blockMetaKey(height), []byte("Tendermint-Meta"))
require.NoError(t, err)
res, _, panicErr = doFn(loadMeta)
require.NotNil(t, panicErr, "expecting a non-nil panic")
require.Contains(t, panicErr.Error(), "unmarshal to tmproto.BlockMeta")
// 3. A good blockMeta serialized and saved to the DB should be retrievable
meta := &types.BlockMeta{Header: types.Header{
Version: version.Consensus{
Block: version.BlockProtocol, App: 0}, Height: 1, ProposerAddress: tmrand.Bytes(crypto.AddressSize)}}
pbm := meta.ToProto()
err = db.Set(blockMetaKey(height), mustEncode(pbm))
require.NoError(t, err)
gotMeta, _, panicErr := doFn(loadMeta)
require.Nil(t, panicErr, "an existent and proper block should not panic")
require.Nil(t, res, "a properly saved blockMeta should return a proper blocMeta ")
pbmeta := meta.ToProto()
if gmeta, ok := gotMeta.(*types.BlockMeta); ok {
pbgotMeta := gmeta.ToProto()
require.Equal(t, mustEncode(pbmeta), mustEncode(pbgotMeta),
"expecting successful retrieval of previously saved blockMeta")
}
}
func TestBlockFetchAtHeight(t *testing.T) {
state, bs, cleanup, err := makeStateAndBlockStore(log.NewNopLogger())
defer cleanup()
require.NoError(t, err)
require.Equal(t, bs.Height(), int64(0), "initially the height should be zero")
block, err := factory.MakeBlock(state, bs.Height()+1, new(types.Commit))
require.NoError(t, err)
partSet, err := block.MakePartSet(2)
require.NoError(t, err)
seenCommit := makeTestCommit(10, tmtime.Now())
bs.SaveBlock(block, partSet, seenCommit)
require.Equal(t, bs.Height(), block.Header.Height, "expecting the new height to be changed")
blockAtHeight := bs.LoadBlock(bs.Height())
b1, err := block.ToProto()
require.NoError(t, err)
b2, err := blockAtHeight.ToProto()
require.NoError(t, err)
bz1 := mustEncode(b1)
bz2 := mustEncode(b2)
require.Equal(t, bz1, bz2)
require.Equal(t, block.Hash(), blockAtHeight.Hash(),
"expecting a successful load of the last saved block")
blockAtHeightPlus1 := bs.LoadBlock(bs.Height() + 1)
require.Nil(t, blockAtHeightPlus1, "expecting an unsuccessful load of Height()+1")
blockAtHeightPlus2 := bs.LoadBlock(bs.Height() + 2)
require.Nil(t, blockAtHeightPlus2, "expecting an unsuccessful load of Height()+2")
}
func TestSeenAndCanonicalCommit(t *testing.T) {
bs, _ := freshBlockStore()
loadCommit := func() (interface{}, error) {
meta := bs.LoadSeenCommit()
return meta, nil
}
// Initially no contents.
// 1. Requesting for a non-existent blockMeta shouldn't fail
res, _, panicErr := doFn(loadCommit)
require.Nil(t, panicErr, "a non-existent blockMeta shouldn't cause a panic")
require.Nil(t, res, "a non-existent blockMeta should return nil")
// produce a few blocks and check that the correct seen and cannoncial commits
// are persisted.
for h := int64(3); h <= 5; h++ {
blockCommit := makeTestCommit(h-1, tmtime.Now())
block, err := factory.MakeBlock(state, h, blockCommit)
require.NoError(t, err)
partSet, err := block.MakePartSet(2)
require.NoError(t, err)
seenCommit := makeTestCommit(h, tmtime.Now())
bs.SaveBlock(block, partSet, seenCommit)
c3 := bs.LoadSeenCommit()
require.NotNil(t, c3)
require.Equal(t, h, c3.Height)
require.Equal(t, seenCommit.Hash(), c3.Hash())
c5 := bs.LoadBlockCommit(h)
require.Nil(t, c5)
c6 := bs.LoadBlockCommit(h - 1)
require.Equal(t, blockCommit.Hash(), c6.Hash())
}
}
func doFn(fn func() (interface{}, error)) (res interface{}, err error, panicErr error) {
defer func() {
if r := recover(); r != nil {
switch e := r.(type) {
case error:
panicErr = e
case string:
panicErr = fmt.Errorf("%s", e)
default:
if st, ok := r.(fmt.Stringer); ok {
panicErr = fmt.Errorf("%s", st)
} else {
panicErr = fmt.Errorf("%s", debug.Stack())
}
}
}
}()
res, err = fn()
return res, err, panicErr
}
func newBlock(hdr types.Header, lastCommit *types.Commit) *types.Block {
return &types.Block{
Header: hdr,
LastCommit: lastCommit,
}
}