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hermez-node/synchronizer/synchronizer_test.go
synchronizer/synchronizer_test.goRaw
  1package synchronizer
  2
  3import (
  4	"context"
  5	"encoding/json"
  6	"fmt"
  7	"io/ioutil"
  8	"math/big"
  9	"os"
 10	"sort"
 11	"testing"
 12
 13	ethCommon "github.com/ethereum/go-ethereum/common"
 14	"github.com/hermeznetwork/hermez-node/common"
 15	dbUtils "github.com/hermeznetwork/hermez-node/db"
 16	"github.com/hermeznetwork/hermez-node/db/historydb"
 17	"github.com/hermeznetwork/hermez-node/db/statedb"
 18	"github.com/hermeznetwork/hermez-node/eth"
 19	"github.com/hermeznetwork/hermez-node/test"
 20	"github.com/hermeznetwork/hermez-node/test/til"
 21	"github.com/jinzhu/copier"
 22	"github.com/stretchr/testify/assert"
 23	"github.com/stretchr/testify/require"
 24)
 25
 26var tokenConsts = map[common.TokenID]eth.ERC20Consts{}
 27
 28type timer struct {
 29	time int64
 30}
 31
 32func (t *timer) Time() int64 {
 33	currentTime := t.time
 34	t.time++
 35	return currentTime
 36}
 37
 38func accountsCmp(accounts []common.Account) func(i, j int) bool {
 39	return func(i, j int) bool { return accounts[i].Idx < accounts[j].Idx }
 40}
 41
 42// Check Sync output and HistoryDB state against expected values generated by
 43// til
 44func checkSyncBlock(t *testing.T, s *Synchronizer, blockNum int, block, syncBlock *common.BlockData) {
 45	// Check Blocks
 46	dbBlocks, err := s.historyDB.GetAllBlocks()
 47	require.Nil(t, err)
 48	dbBlocks = dbBlocks[1:] // ignore block 0, added by default in the DB
 49	assert.Equal(t, blockNum, len(dbBlocks))
 50	assert.Equal(t, int64(blockNum), dbBlocks[blockNum-1].Num)
 51	assert.NotEqual(t, dbBlocks[blockNum-1].Hash, dbBlocks[blockNum-2].Hash)
 52	assert.Greater(t, dbBlocks[blockNum-1].Timestamp.Unix(), dbBlocks[blockNum-2].Timestamp.Unix())
 53
 54	// Check Tokens
 55	assert.Equal(t, len(block.Rollup.AddedTokens), len(syncBlock.Rollup.AddedTokens))
 56	dbTokens, err := s.historyDB.GetAllTokens()
 57	require.Nil(t, err)
 58	dbTokens = dbTokens[1:] // ignore token 0, added by default in the DB
 59	for i, token := range block.Rollup.AddedTokens {
 60		dbToken := dbTokens[i]
 61		syncToken := syncBlock.Rollup.AddedTokens[i]
 62
 63		assert.Equal(t, block.Block.Num, syncToken.EthBlockNum)
 64		assert.Equal(t, token.TokenID, syncToken.TokenID)
 65		assert.Equal(t, token.EthAddr, syncToken.EthAddr)
 66		tokenConst := tokenConsts[token.TokenID]
 67		assert.Equal(t, tokenConst.Name, syncToken.Name)
 68		assert.Equal(t, tokenConst.Symbol, syncToken.Symbol)
 69		assert.Equal(t, tokenConst.Decimals, syncToken.Decimals)
 70
 71		var tokenCpy historydb.TokenWithUSD
 72		//nolint:gosec
 73		require.Nil(t, copier.Copy(&tokenCpy, &token))      // copy common.Token to historydb.TokenWithUSD
 74		require.Nil(t, copier.Copy(&tokenCpy, &tokenConst)) // copy common.Token to historydb.TokenWithUSD
 75		tokenCpy.ItemID = dbToken.ItemID                    // we don't care about ItemID
 76		assert.Equal(t, tokenCpy, dbToken)
 77	}
 78
 79	// Check submitted L1UserTxs
 80	assert.Equal(t, len(block.Rollup.L1UserTxs), len(syncBlock.Rollup.L1UserTxs))
 81	dbL1UserTxs, err := s.historyDB.GetAllL1UserTxs()
 82	require.Nil(t, err)
 83	// Ignore BatchNum in syncBlock.L1UserTxs because this value is set by
 84	// the HistoryDB. Also ignore EffectiveAmount & EffectiveDepositAmount
 85	// because this value is set by StateDB.ProcessTxs.
 86	for i := range syncBlock.Rollup.L1UserTxs {
 87		syncBlock.Rollup.L1UserTxs[i].BatchNum = block.Rollup.L1UserTxs[i].BatchNum
 88		assert.Nil(t, syncBlock.Rollup.L1UserTxs[i].EffectiveDepositAmount)
 89		assert.Nil(t, syncBlock.Rollup.L1UserTxs[i].EffectiveAmount)
 90	}
 91	assert.Equal(t, block.Rollup.L1UserTxs, syncBlock.Rollup.L1UserTxs)
 92	for _, tx := range block.Rollup.L1UserTxs {
 93		var dbTx *common.L1Tx
 94		// Find tx in DB output
 95		for _, _dbTx := range dbL1UserTxs {
 96			if *tx.ToForgeL1TxsNum == *_dbTx.ToForgeL1TxsNum &&
 97				tx.Position == _dbTx.Position {
 98				dbTx = new(common.L1Tx)
 99				*dbTx = _dbTx
100				break
101			}
102		}
103		// If the tx has been forged in this block, this will be
104		// reflected in the DB, and so the Effective values will be
105		// already set
106		if dbTx.BatchNum != nil {
107			tx.EffectiveAmount = tx.Amount
108			tx.EffectiveDepositAmount = tx.DepositAmount
109		}
110		assert.Equal(t, &tx, dbTx) //nolint:gosec
111	}
112
113	// Check Batches
114	assert.Equal(t, len(block.Rollup.Batches), len(syncBlock.Rollup.Batches))
115	dbBatches, err := s.historyDB.GetAllBatches()
116	require.Nil(t, err)
117
118	dbL1CoordinatorTxs, err := s.historyDB.GetAllL1CoordinatorTxs()
119	require.Nil(t, err)
120	dbL2Txs, err := s.historyDB.GetAllL2Txs()
121	require.Nil(t, err)
122	dbExits, err := s.historyDB.GetAllExits()
123	require.Nil(t, err)
124	// dbL1CoordinatorTxs := []common.L1Tx{}
125	for i, batch := range block.Rollup.Batches {
126		var dbBatch *common.Batch
127		// Find batch in DB output
128		for _, _dbBatch := range dbBatches {
129			if batch.Batch.BatchNum == _dbBatch.BatchNum {
130				dbBatch = new(common.Batch)
131				*dbBatch = _dbBatch
132				break
133			}
134		}
135		syncBatch := syncBlock.Rollup.Batches[i]
136
137		// We don't care about TotalFeesUSD.  Use the syncBatch that
138		// has a TotalFeesUSD inserted by the HistoryDB
139		batch.Batch.TotalFeesUSD = syncBatch.Batch.TotalFeesUSD
140		assert.Equal(t, batch.CreatedAccounts, syncBatch.CreatedAccounts)
141		batch.Batch.NumAccounts = len(batch.CreatedAccounts)
142
143		// Test field by field to facilitate debugging of errors
144		assert.Equal(t, batch.L1UserTxs, syncBatch.L1UserTxs)
145		assert.Equal(t, batch.L1CoordinatorTxs, syncBatch.L1CoordinatorTxs)
146		assert.Equal(t, batch.L2Txs, syncBatch.L2Txs)
147		// In exit tree, we only check AccountIdx and Balance, because
148		// it's what we have precomputed before.
149		require.Equal(t, len(batch.ExitTree), len(syncBatch.ExitTree))
150		for j := range batch.ExitTree {
151			exit := &batch.ExitTree[j]
152			assert.Equal(t, exit.AccountIdx, syncBatch.ExitTree[j].AccountIdx)
153			assert.Equal(t, exit.Balance, syncBatch.ExitTree[j].Balance)
154			*exit = syncBatch.ExitTree[j]
155		}
156		assert.Equal(t, batch.Batch, syncBatch.Batch)
157		assert.Equal(t, batch, syncBatch)
158		assert.Equal(t, &batch.Batch, dbBatch) //nolint:gosec
159
160		// Check forged L1UserTxs from DB, and check effective values
161		// in sync output
162		for j, tx := range batch.L1UserTxs {
163			var dbTx *common.L1Tx
164			// Find tx in DB output
165			for _, _dbTx := range dbL1UserTxs {
166				if *tx.BatchNum == *_dbTx.BatchNum &&
167					tx.Position == _dbTx.Position {
168					dbTx = new(common.L1Tx)
169					*dbTx = _dbTx
170					break
171				}
172			}
173			assert.Equal(t, &tx, dbTx) //nolint:gosec
174
175			syncTx := &syncBlock.Rollup.Batches[i].L1UserTxs[j]
176			assert.Equal(t, syncTx.DepositAmount, syncTx.EffectiveDepositAmount)
177			assert.Equal(t, syncTx.Amount, syncTx.EffectiveAmount)
178		}
179
180		// Check L1CoordinatorTxs from DB
181		for _, tx := range batch.L1CoordinatorTxs {
182			var dbTx *common.L1Tx
183			// Find tx in DB output
184			for _, _dbTx := range dbL1CoordinatorTxs {
185				if *tx.BatchNum == *_dbTx.BatchNum &&
186					tx.Position == _dbTx.Position {
187					dbTx = new(common.L1Tx)
188					*dbTx = _dbTx
189					break
190				}
191			}
192			assert.Equal(t, &tx, dbTx) //nolint:gosec
193		}
194
195		// Check L2Txs from DB
196		for _, tx := range batch.L2Txs {
197			var dbTx *common.L2Tx
198			// Find tx in DB output
199			for _, _dbTx := range dbL2Txs {
200				if tx.BatchNum == _dbTx.BatchNum &&
201					tx.Position == _dbTx.Position {
202					dbTx = new(common.L2Tx)
203					*dbTx = _dbTx
204					break
205				}
206			}
207			assert.Equal(t, &tx, dbTx) //nolint:gosec
208		}
209
210		// Check Exits from DB
211		for _, exit := range batch.ExitTree {
212			var dbExit *common.ExitInfo
213			// Find exit in DB output
214			for _, _dbExit := range dbExits {
215				if exit.BatchNum == _dbExit.BatchNum &&
216					exit.AccountIdx == _dbExit.AccountIdx {
217					dbExit = new(common.ExitInfo)
218					*dbExit = _dbExit
219					break
220				}
221			}
222			// Compare MerkleProof in JSON because unmarshaled 0
223			// big.Int leaves the internal big.Int array at nil,
224			// and gives trouble when comparing big.Int with
225			// internal big.Int array != nil but empty.
226			mtp, err := json.Marshal(exit.MerkleProof)
227			require.Nil(t, err)
228			dbMtp, err := json.Marshal(dbExit.MerkleProof)
229			require.Nil(t, err)
230			assert.Equal(t, mtp, dbMtp)
231			dbExit.MerkleProof = exit.MerkleProof
232			assert.Equal(t, &exit, dbExit) //nolint:gosec
233		}
234	}
235
236	// Compare accounts from HistoryDB with StateDB (they should match)
237	dbAccounts, err := s.historyDB.GetAllAccounts()
238	require.Nil(t, err)
239	sdbAccounts, err := s.stateDB.GetAccounts()
240	require.Nil(t, err)
241	assertEqualAccountsHistoryDBStateDB(t, dbAccounts, sdbAccounts)
242}
243
244func assertEqualAccountsHistoryDBStateDB(t *testing.T, hdbAccs, sdbAccs []common.Account) {
245	assert.Equal(t, len(hdbAccs), len(sdbAccs))
246	sort.SliceStable(hdbAccs, accountsCmp(hdbAccs))
247	sort.SliceStable(sdbAccs, accountsCmp(sdbAccs))
248	for i := range hdbAccs {
249		hdbAcc := hdbAccs[i]
250		sdbAcc := sdbAccs[i]
251		assert.Equal(t, hdbAcc.Idx, sdbAcc.Idx)
252		assert.Equal(t, hdbAcc.TokenID, sdbAcc.TokenID)
253		assert.Equal(t, hdbAcc.EthAddr, sdbAcc.EthAddr)
254		assert.Equal(t, hdbAcc.PublicKey, sdbAcc.PublicKey)
255	}
256}
257
258// ethAddTokens adds the tokens from the blocks to the blockchain
259func ethAddTokens(blocks []common.BlockData, client *test.Client) {
260	for _, block := range blocks {
261		for _, token := range block.Rollup.AddedTokens {
262			consts := eth.ERC20Consts{
263				Name:     fmt.Sprintf("Token %d", token.TokenID),
264				Symbol:   fmt.Sprintf("TK%d", token.TokenID),
265				Decimals: 18,
266			}
267			tokenConsts[token.TokenID] = consts
268			client.CtlAddERC20(token.EthAddr, consts)
269		}
270	}
271}
272
273func TestSync(t *testing.T) {
274	//
275	// Setup
276	//
277
278	ctx := context.Background()
279	// Int State DB
280	dir, err := ioutil.TempDir("", "tmpdb")
281	require.Nil(t, err)
282	defer assert.Nil(t, os.RemoveAll(dir))
283
284	stateDB, err := statedb.NewStateDB(dir, statedb.TypeSynchronizer, 32)
285	require.NoError(t, err)
286
287	// Init History DB
288	pass := os.Getenv("POSTGRES_PASS")
289	db, err := dbUtils.InitSQLDB(5432, "localhost", "hermez", pass, "hermez")
290	require.Nil(t, err)
291	historyDB := historydb.NewHistoryDB(db)
292	// Clear DB
293	test.WipeDB(historyDB.DB())
294
295	// Init eth client
296	var timer timer
297	clientSetup := test.NewClientSetupExample()
298	bootCoordAddr := clientSetup.AuctionVariables.BootCoordinator
299	client := test.NewClient(true, &timer, &ethCommon.Address{}, clientSetup)
300
301	// Create Synchronizer
302	s, err := NewSynchronizer(client, historyDB, stateDB, Config{
303		StartBlockNum: ConfigStartBlockNum{
304			Rollup:   1,
305			Auction:  1,
306			WDelayer: 1,
307		},
308		InitialVariables: SCVariables{
309			Rollup:   *clientSetup.RollupVariables,
310			Auction:  *clientSetup.AuctionVariables,
311			WDelayer: *clientSetup.WDelayerVariables,
312		},
313	})
314	require.Nil(t, err)
315
316	//
317	// First Sync from an initial state
318	//
319	stats := s.Stats()
320	assert.Equal(t, false, stats.Synced())
321
322	// Test Sync for rollup genesis block
323	syncBlock, discards, err := s.Sync2(ctx, nil)
324	require.Nil(t, err)
325	require.Nil(t, discards)
326	require.NotNil(t, syncBlock)
327	require.Nil(t, syncBlock.Rollup.Vars)
328	require.Nil(t, syncBlock.Auction.Vars)
329	require.Nil(t, syncBlock.WDelayer.Vars)
330	assert.Equal(t, int64(1), syncBlock.Block.Num)
331	stats = s.Stats()
332	assert.Equal(t, int64(1), stats.Eth.FirstBlockNum)
333	assert.Equal(t, int64(1), stats.Eth.LastBlock.Num)
334	assert.Equal(t, int64(1), stats.Sync.LastBlock.Num)
335	vars := s.SCVars()
336	assert.Equal(t, clientSetup.RollupVariables, vars.Rollup)
337	assert.Equal(t, clientSetup.AuctionVariables, vars.Auction)
338	assert.Equal(t, clientSetup.WDelayerVariables, vars.WDelayer)
339
340	dbBlocks, err := s.historyDB.GetAllBlocks()
341	require.Nil(t, err)
342	assert.Equal(t, 2, len(dbBlocks))
343	assert.Equal(t, int64(1), dbBlocks[1].Num)
344
345	// Sync again and expect no new blocks
346	syncBlock, discards, err = s.Sync2(ctx, nil)
347	require.Nil(t, err)
348	require.Nil(t, discards)
349	require.Nil(t, syncBlock)
350
351	//
352	// Generate blockchain and smart contract data, and fill the test smart contracts
353	//
354
355	// Generate blockchain data with til
356	set1 := `
357		Type: Blockchain
358
359		AddToken(1)
360		AddToken(2)
361		AddToken(3)
362
363		CreateAccountDeposit(1) C: 2000 // Idx=256+2=258
364		CreateAccountDeposit(2) A: 2000 // Idx=256+3=259
365		CreateAccountDeposit(1) D: 500  // Idx=256+4=260
366		CreateAccountDeposit(2) B: 500  // Idx=256+5=261
367		CreateAccountDeposit(2) C: 500  // Idx=256+6=262
368
369		CreateAccountCoordinator(1) A // Idx=256+0=256
370		CreateAccountCoordinator(1) B // Idx=256+1=257
371
372		> batchL1 // forge L1UserTxs{nil}, freeze defined L1UserTxs{5}
373		> batchL1 // forge defined L1UserTxs{5}, freeze L1UserTxs{nil}
374		> block // blockNum=2
375
376		CreateAccountDepositTransfer(1) E-A: 1000, 200 // Idx=256+7=263
377		ForceTransfer(1) C-B: 80
378		ForceExit(1) A: 100
379		ForceExit(1) B: 80
380		ForceTransfer(1) A-D: 100
381
382		Transfer(1) C-A: 100 (200)
383		Exit(1) C: 50 (200)
384		Exit(1) D: 30 (200)
385
386		> batchL1 // forge L1UserTxs{nil}, freeze defined L1UserTxs{3}
387		> batchL1 // forge L1UserTxs{3}, freeze defined L1UserTxs{nil}
388		> block // blockNum=3
389	`
390	tc := til.NewContext(common.RollupConstMaxL1UserTx)
391	tilCfgExtra := til.ConfigExtra{
392		BootCoordAddr: bootCoordAddr,
393		CoordUser:     "A",
394	}
395	blocks, err := tc.GenerateBlocks(set1)
396	require.Nil(t, err)
397	// Sanity check
398	require.Equal(t, 2, len(blocks))
399	// blocks 0 (blockNum=2)
400	i := 0
401	require.Equal(t, 2, int(blocks[i].Block.Num))
402	require.Equal(t, 3, len(blocks[i].Rollup.AddedTokens))
403	require.Equal(t, 5, len(blocks[i].Rollup.L1UserTxs))
404	require.Equal(t, 2, len(blocks[i].Rollup.Batches))
405	require.Equal(t, 2, len(blocks[i].Rollup.Batches[0].L1CoordinatorTxs))
406	// blocks 1 (blockNum=3)
407	i = 1
408	require.Equal(t, 3, int(blocks[i].Block.Num))
409	require.Equal(t, 5, len(blocks[i].Rollup.L1UserTxs))
410	require.Equal(t, 2, len(blocks[i].Rollup.Batches))
411	require.Equal(t, 3, len(blocks[i].Rollup.Batches[0].L2Txs))
412
413	// Generate extra required data
414	ethAddTokens(blocks, client)
415
416	err = tc.FillBlocksExtra(blocks, &tilCfgExtra)
417	require.NoError(t, err)
418	tc.FillBlocksL1UserTxsBatchNum(blocks)
419	err = tc.FillBlocksForgedL1UserTxs(blocks)
420	require.NoError(t, err)
421
422	// Add block data to the smart contracts
423	err = client.CtlAddBlocks(blocks)
424	require.NoError(t, err)
425
426	//
427	// Sync to synchronize the current state from the test smart contracts,
428	// and check the outcome
429	//
430
431	// Block 2
432
433	syncBlock, discards, err = s.Sync2(ctx, nil)
434	require.Nil(t, err)
435	require.Nil(t, discards)
436	require.NotNil(t, syncBlock)
437	assert.Nil(t, syncBlock.Rollup.Vars)
438	assert.Nil(t, syncBlock.Auction.Vars)
439	assert.Nil(t, syncBlock.WDelayer.Vars)
440	assert.Equal(t, int64(2), syncBlock.Block.Num)
441	stats = s.Stats()
442	assert.Equal(t, int64(1), stats.Eth.FirstBlockNum)
443	assert.Equal(t, int64(3), stats.Eth.LastBlock.Num)
444	assert.Equal(t, int64(2), stats.Sync.LastBlock.Num)
445
446	checkSyncBlock(t, s, 2, &blocks[0], syncBlock)
447
448	// Block 3
449
450	syncBlock, discards, err = s.Sync2(ctx, nil)
451	assert.NoError(t, err)
452	require.Nil(t, err)
453	require.Nil(t, discards)
454	require.NotNil(t, syncBlock)
455	assert.Nil(t, syncBlock.Rollup.Vars)
456	assert.Nil(t, syncBlock.Auction.Vars)
457	assert.Nil(t, syncBlock.WDelayer.Vars)
458	assert.Equal(t, int64(3), syncBlock.Block.Num)
459	stats = s.Stats()
460	assert.Equal(t, int64(1), stats.Eth.FirstBlockNum)
461	assert.Equal(t, int64(3), stats.Eth.LastBlock.Num)
462	assert.Equal(t, int64(3), stats.Sync.LastBlock.Num)
463
464	checkSyncBlock(t, s, 3, &blocks[1], syncBlock)
465
466	// Block 4
467	// Generate 2 withdraws manually
468	_, err = client.RollupWithdrawMerkleProof(tc.Users["A"].BJJ.Public(), 1, 4, 256, big.NewInt(100), []*big.Int{}, true)
469	require.Nil(t, err)
470	_, err = client.RollupWithdrawMerkleProof(tc.Users["C"].BJJ.Public(), 1, 3, 258, big.NewInt(50), []*big.Int{}, false)
471	require.Nil(t, err)
472	client.CtlMineBlock()
473
474	syncBlock, discards, err = s.Sync2(ctx, nil)
475	require.Nil(t, err)
476	require.Nil(t, discards)
477	require.NotNil(t, syncBlock)
478	assert.Nil(t, syncBlock.Rollup.Vars)
479	assert.Nil(t, syncBlock.Auction.Vars)
480	assert.Nil(t, syncBlock.WDelayer.Vars)
481	assert.Equal(t, int64(4), syncBlock.Block.Num)
482	stats = s.Stats()
483	assert.Equal(t, int64(1), stats.Eth.FirstBlockNum)
484	assert.Equal(t, int64(4), stats.Eth.LastBlock.Num)
485	assert.Equal(t, int64(4), stats.Sync.LastBlock.Num)
486	vars = s.SCVars()
487	assert.Equal(t, clientSetup.RollupVariables, vars.Rollup)
488	assert.Equal(t, clientSetup.AuctionVariables, vars.Auction)
489	assert.Equal(t, clientSetup.WDelayerVariables, vars.WDelayer)
490
491	dbExits, err := s.historyDB.GetAllExits()
492	require.Nil(t, err)
493	foundA1, foundC1 := false, false
494	for _, exit := range dbExits {
495		if exit.AccountIdx == 256 && exit.BatchNum == 4 {
496			foundA1 = true
497			assert.Equal(t, int64(4), *exit.InstantWithdrawn)
498		}
499		if exit.AccountIdx == 258 && exit.BatchNum == 3 {
500			foundC1 = true
501			assert.Equal(t, int64(4), *exit.DelayedWithdrawRequest)
502		}
503	}
504	assert.True(t, foundA1)
505	assert.True(t, foundC1)
506
507	// Block 5
508	// Update variables manually
509	rollupVars, auctionVars, wDelayerVars, err := s.historyDB.GetSCVars()
510	require.Nil(t, err)
511	rollupVars.ForgeL1L2BatchTimeout = 42
512	_, err = client.RollupUpdateForgeL1L2BatchTimeout(rollupVars.ForgeL1L2BatchTimeout)
513	require.Nil(t, err)
514
515	auctionVars.OpenAuctionSlots = 17
516	_, err = client.AuctionSetOpenAuctionSlots(auctionVars.OpenAuctionSlots)
517	require.Nil(t, err)
518
519	wDelayerVars.WithdrawalDelay = 99
520	_, err = client.WDelayerChangeWithdrawalDelay(wDelayerVars.WithdrawalDelay)
521	require.Nil(t, err)
522
523	client.CtlMineBlock()
524
525	syncBlock, discards, err = s.Sync2(ctx, nil)
526	require.Nil(t, err)
527	require.Nil(t, discards)
528	require.NotNil(t, syncBlock)
529	assert.NotNil(t, syncBlock.Rollup.Vars)
530	assert.NotNil(t, syncBlock.Auction.Vars)
531	assert.NotNil(t, syncBlock.WDelayer.Vars)
532	assert.Equal(t, int64(5), syncBlock.Block.Num)
533	stats = s.Stats()
534	assert.Equal(t, int64(1), stats.Eth.FirstBlockNum)
535	assert.Equal(t, int64(5), stats.Eth.LastBlock.Num)
536	assert.Equal(t, int64(5), stats.Sync.LastBlock.Num)
537	vars = s.SCVars()
538	assert.NotEqual(t, clientSetup.RollupVariables, vars.Rollup)
539	assert.NotEqual(t, clientSetup.AuctionVariables, vars.Auction)
540	assert.NotEqual(t, clientSetup.WDelayerVariables, vars.WDelayer)
541
542	dbRollupVars, dbAuctionVars, dbWDelayerVars, err := s.historyDB.GetSCVars()
543	require.Nil(t, err)
544	// Set EthBlockNum for Vars to the blockNum in which they were updated (should be 5)
545	rollupVars.EthBlockNum = syncBlock.Block.Num
546	auctionVars.EthBlockNum = syncBlock.Block.Num
547	wDelayerVars.EthBlockNum = syncBlock.Block.Num
548	assert.Equal(t, rollupVars, dbRollupVars)
549	assert.Equal(t, auctionVars, dbAuctionVars)
550	assert.Equal(t, wDelayerVars, dbWDelayerVars)
551
552	//
553	// Reorg test
554	//
555
556	// Redo blocks 2-5 (as a reorg) only leaving:
557	// - 2 create account transactions
558	// - 2 add tokens
559	// We add a 6th block so that the synchronizer can detect the reorg
560	set2 := `
561		Type: Blockchain
562
563		AddToken(1)
564		AddToken(2)
565
566		CreateAccountDeposit(1) C: 2000 // Idx=256+1=257
567
568		CreateAccountCoordinator(1) A // Idx=256+0=256
569
570		> batchL1 // forge L1UserTxs{nil}, freeze defined L1UserTxs{1}
571		> batchL1 // forge defined L1UserTxs{1}, freeze L1UserTxs{nil}
572		> block // blockNum=2
573		> block // blockNum=3
574		> block // blockNum=4
575		> block // blockNum=5
576		> block // blockNum=6
577	`
578	tc = til.NewContext(common.RollupConstMaxL1UserTx)
579	tilCfgExtra = til.ConfigExtra{
580		BootCoordAddr: bootCoordAddr,
581		CoordUser:     "A",
582	}
583	blocks, err = tc.GenerateBlocks(set2)
584	require.Nil(t, err)
585
586	for i := 0; i < 4; i++ {
587		client.CtlRollback()
588	}
589	block := client.CtlLastBlock()
590	require.Equal(t, int64(1), block.Num)
591
592	// Generate extra required data
593	ethAddTokens(blocks, client)
594
595	err = tc.FillBlocksExtra(blocks, &tilCfgExtra)
596	require.NoError(t, err)
597	tc.FillBlocksL1UserTxsBatchNum(blocks)
598
599	// Add block data to the smart contracts
600	err = client.CtlAddBlocks(blocks)
601	require.NoError(t, err)
602
603	// First sync detects the reorg and discards 4 blocks
604	syncBlock, discards, err = s.Sync2(ctx, nil)
605	require.Nil(t, err)
606	expetedDiscards := int64(4)
607	require.Equal(t, &expetedDiscards, discards)
608	require.Nil(t, syncBlock)
609	stats = s.Stats()
610	assert.Equal(t, false, stats.Synced())
611	assert.Equal(t, int64(6), stats.Eth.LastBlock.Num)
612	vars = s.SCVars()
613	assert.Equal(t, clientSetup.RollupVariables, vars.Rollup)
614	assert.Equal(t, clientSetup.AuctionVariables, vars.Auction)
615	assert.Equal(t, clientSetup.WDelayerVariables, vars.WDelayer)
616
617	// At this point, the DB only has data up to block 1
618	dbBlock, err := s.historyDB.GetLastBlock()
619	require.Nil(t, err)
620	assert.Equal(t, int64(1), dbBlock.Num)
621
622	// Accounts in HistoryDB and StateDB must be empty
623	dbAccounts, err := s.historyDB.GetAllAccounts()
624	require.Nil(t, err)
625	sdbAccounts, err := s.stateDB.GetAccounts()
626	require.Nil(t, err)
627	assert.Equal(t, 0, len(dbAccounts))
628	assertEqualAccountsHistoryDBStateDB(t, dbAccounts, sdbAccounts)
629
630	// Sync blocks 2-6
631	for i := 0; i < 5; i++ {
632		syncBlock, discards, err = s.Sync2(ctx, nil)
633		require.Nil(t, err)
634		require.Nil(t, discards)
635		require.NotNil(t, syncBlock)
636		assert.Nil(t, syncBlock.Rollup.Vars)
637		assert.Nil(t, syncBlock.Auction.Vars)
638		assert.Nil(t, syncBlock.WDelayer.Vars)
639		assert.Equal(t, int64(2+i), syncBlock.Block.Num)
640
641		stats = s.Stats()
642		assert.Equal(t, int64(1), stats.Eth.FirstBlockNum)
643		assert.Equal(t, int64(6), stats.Eth.LastBlock.Num)
644		assert.Equal(t, int64(2+i), stats.Sync.LastBlock.Num)
645		if i == 4 {
646			assert.Equal(t, true, stats.Synced())
647		} else {
648			assert.Equal(t, false, stats.Synced())
649		}
650
651		vars = s.SCVars()
652		assert.Equal(t, clientSetup.RollupVariables, vars.Rollup)
653		assert.Equal(t, clientSetup.AuctionVariables, vars.Auction)
654		assert.Equal(t, clientSetup.WDelayerVariables, vars.WDelayer)
655	}
656
657	dbBlock, err = s.historyDB.GetLastBlock()
658	require.Nil(t, err)
659	assert.Equal(t, int64(6), dbBlock.Num)
660
661	// Accounts in HistoryDB and StateDB is only 2 entries
662	dbAccounts, err = s.historyDB.GetAllAccounts()
663	require.Nil(t, err)
664	sdbAccounts, err = s.stateDB.GetAccounts()
665	require.Nil(t, err)
666	assert.Equal(t, 2, len(dbAccounts))
667	assertEqualAccountsHistoryDBStateDB(t, dbAccounts, sdbAccounts)
668}