core: use in-memory freezer for tests (#29720)

* core: simplify chain tests

* core, eth, cmd: use in-memory freezer for tests

* core: restore tests

cmd/utils/history_test.go

@@ -162,8 +162,7 @@ func TestHistoryImportAndExport(t *testing.T) {
 	}
 
 	// Now import Era.
-	freezer := t.TempDir()
+	db2, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
-	db2, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), freezer, "", false)
 	if err != nil {
 		panic(err)
 	}

core/block_validator_test.go

@@ -154,12 +154,10 @@ func testHeaderVerificationForMerging(t *testing.T, isClique bool) {
 	preHeaders := make([]*types.Header, len(preBlocks))
 	for i, block := range preBlocks {
 		preHeaders[i] = block.Header()
-		t.Logf("Pre-merge header: %d", block.NumberU64())
 	}
 	postHeaders := make([]*types.Header, len(postBlocks))
 	for i, block := range postBlocks {
 		postHeaders[i] = block.Header()
-		t.Logf("Post-merge header: %d", block.NumberU64())
 	}
 	// Run the header checker for blocks one-by-one, checking for both valid and invalid nonces
 	chain, _ := NewBlockChain(rawdb.NewMemoryDatabase(), nil, gspec, nil, engine, vm.Config{}, nil, nil)

core/blockchain_test.go

@@ -785,7 +785,7 @@ func testFastVsFullChains(t *testing.T, scheme string) {
 		t.Fatalf("failed to insert receipt %d: %v", n, err)
 	}
 	// Freezer style fast import the chain.
-	ancientDb, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
+	ancientDb, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
 	if err != nil {
 		t.Fatalf("failed to create temp freezer db: %v", err)
 	}
@@ -875,12 +875,12 @@ func testLightVsFastVsFullChainHeads(t *testing.T, scheme string) {
 			BaseFee: big.NewInt(params.InitialBaseFee),
 		}
 	)
-	height := uint64(1024)
+	height := uint64(64)
 	_, blocks, receipts := GenerateChainWithGenesis(gspec, ethash.NewFaker(), int(height), nil)
 
 	// makeDb creates a db instance for testing.
 	makeDb := func() ethdb.Database {
-		db, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
+		db, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
 		if err != nil {
 			t.Fatalf("failed to create temp freezer db: %v", err)
 		}
@@ -1768,7 +1768,7 @@ func testLargeReorgTrieGC(t *testing.T, scheme string) {
 	competitor, _ := GenerateChain(genesis.Config, shared[len(shared)-1], engine, genDb, 2*state.TriesInMemory+1, func(i int, b *BlockGen) { b.SetCoinbase(common.Address{3}) })
 
 	// Import the shared chain and the original canonical one
-	db, _ := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
+	db, _ := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
 	defer db.Close()
 
 	chain, err := NewBlockChain(db, DefaultCacheConfigWithScheme(scheme), genesis, nil, engine, vm.Config{}, nil, nil)
@@ -1833,7 +1833,7 @@ func testBlockchainRecovery(t *testing.T, scheme string) {
 		funds   = big.NewInt(1000000000)
 		gspec   = &Genesis{Config: params.TestChainConfig, Alloc: types.GenesisAlloc{address: {Balance: funds}}}
 	)
-	height := uint64(1024)
+	height := uint64(64)
 	_, blocks, receipts := GenerateChainWithGenesis(gspec, ethash.NewFaker(), int(height), nil)
 
 	// Import the chain as a ancient-first node and ensure all pointers are updated
@@ -1908,7 +1908,7 @@ func testInsertReceiptChainRollback(t *testing.T, scheme string) {
 	}
 
 	// Set up a BlockChain that uses the ancient store.
-	ancientDb, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
+	ancientDb, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
 	if err != nil {
 		t.Fatalf("failed to create temp freezer db: %v", err)
 	}
@@ -1978,7 +1978,7 @@ func testLowDiffLongChain(t *testing.T, scheme string) {
 	})
 
 	// Import the canonical chain
-	diskdb, _ := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
+	diskdb, _ := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
 	defer diskdb.Close()
 
 	chain, err := NewBlockChain(diskdb, DefaultCacheConfigWithScheme(scheme), genesis, nil, engine, vm.Config{}, nil, nil)
@@ -2190,7 +2190,7 @@ func testInsertKnownChainData(t *testing.T, typ string, scheme string) {
 		b.OffsetTime(-9) // A higher difficulty
 	})
 	// Import the shared chain and the original canonical one
-	chaindb, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
+	chaindb, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
 	if err != nil {
 		t.Fatalf("failed to create temp freezer db: %v", err)
 	}
@@ -2361,7 +2361,7 @@ func testInsertKnownChainDataWithMerging(t *testing.T, typ string, mergeHeight i
 		}
 	})
 	// Import the shared chain and the original canonical one
-	chaindb, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
+	chaindb, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
 	if err != nil {
 		t.Fatalf("failed to create temp freezer db: %v", err)
 	}
@@ -3634,18 +3634,19 @@ func testSetCanonical(t *testing.T, scheme string) {
 			Alloc:   types.GenesisAlloc{address: {Balance: funds}},
 			BaseFee: big.NewInt(params.InitialBaseFee),
 		}
-		signer = types.LatestSigner(gspec.Config)
+		signer      = types.LatestSigner(gspec.Config)
-		engine = ethash.NewFaker()
+		engine      = ethash.NewFaker()
+		chainLength = 10
 	)
 	// Generate and import the canonical chain
-	_, canon, _ := GenerateChainWithGenesis(gspec, engine, 2*state.TriesInMemory, func(i int, gen *BlockGen) {
+	_, canon, _ := GenerateChainWithGenesis(gspec, engine, chainLength, func(i int, gen *BlockGen) {
 		tx, err := types.SignTx(types.NewTransaction(gen.TxNonce(address), common.Address{0x00}, big.NewInt(1000), params.TxGas, gen.header.BaseFee, nil), signer, key)
 		if err != nil {
 			panic(err)
 		}
 		gen.AddTx(tx)
 	})
-	diskdb, _ := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), t.TempDir(), "", false)
+	diskdb, _ := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
 	defer diskdb.Close()
 
 	chain, err := NewBlockChain(diskdb, DefaultCacheConfigWithScheme(scheme), gspec, nil, engine, vm.Config{}, nil, nil)
@@ -3659,7 +3660,7 @@ func testSetCanonical(t *testing.T, scheme string) {
 	}
 
 	// Generate the side chain and import them
-	_, side, _ := GenerateChainWithGenesis(gspec, engine, 2*state.TriesInMemory, func(i int, gen *BlockGen) {
+	_, side, _ := GenerateChainWithGenesis(gspec, engine, chainLength, func(i int, gen *BlockGen) {
 		tx, err := types.SignTx(types.NewTransaction(gen.TxNonce(address), common.Address{0x00}, big.NewInt(1), params.TxGas, gen.header.BaseFee, nil), signer, key)
 		if err != nil {
 			panic(err)
@@ -3698,8 +3699,8 @@ func testSetCanonical(t *testing.T, scheme string) {
 	verify(side[len(side)-1])
 
 	// Reset the chain head to original chain
-	chain.SetCanonical(canon[state.TriesInMemory-1])
+	chain.SetCanonical(canon[chainLength-1])
-	verify(canon[state.TriesInMemory-1])
+	verify(canon[chainLength-1])
 }
 
 // TestCanonicalHashMarker tests all the canonical hash markers are updated/deleted

core/txindexer_test.go

@@ -18,7 +18,6 @@ package core
 
 import (
 	"math/big"
-	"os"
 	"testing"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -211,8 +210,7 @@ func TestTxIndexer(t *testing.T) {
 		},
 	}
 	for _, c := range cases {
-		frdir := t.TempDir()
+		db, _ := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
-		db, _ := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), frdir, "", false)
 		rawdb.WriteAncientBlocks(db, append([]*types.Block{gspec.ToBlock()}, blocks...), append([]types.Receipts{{}}, receipts...), big.NewInt(0))
 
 		// Index the initial blocks from ancient store
@@ -238,6 +236,5 @@ func TestTxIndexer(t *testing.T) {
 		verify(db, 0, indexer)
 
 		db.Close()
-		os.RemoveAll(frdir)
 	}
 }

eth/downloader/downloader_test.go

@@ -19,7 +19,6 @@ package downloader
 import (
 	"fmt"
 	"math/big"
-	"os"
 	"sync"
 	"sync/atomic"
 	"testing"
@@ -43,7 +42,6 @@ import (
 
 // downloadTester is a test simulator for mocking out local block chain.
 type downloadTester struct {
-	freezer    string
 	chain      *core.BlockChain
 	downloader *Downloader
 
@@ -58,8 +56,7 @@ func newTester(t *testing.T) *downloadTester {
 
 // newTesterWithNotification creates a new downloader test mocker.
 func newTesterWithNotification(t *testing.T, success func()) *downloadTester {
-	freezer := t.TempDir()
+	db, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), "", "", false)
-	db, err := rawdb.NewDatabaseWithFreezer(rawdb.NewMemoryDatabase(), freezer, "", false)
 	if err != nil {
 		panic(err)
 	}
@@ -76,9 +73,8 @@ func newTesterWithNotification(t *testing.T, success func()) *downloadTester {
 		panic(err)
 	}
 	tester := &downloadTester{
-		freezer: freezer,
+		chain: chain,
-		chain:   chain,
+		peers: make(map[string]*downloadTesterPeer),
-		peers:   make(map[string]*downloadTesterPeer),
 	}
 	tester.downloader = New(db, new(event.TypeMux), tester.chain, nil, tester.dropPeer, success)
 	return tester
@@ -89,8 +85,6 @@ func newTesterWithNotification(t *testing.T, success func()) *downloadTester {
 func (dl *downloadTester) terminate() {
 	dl.downloader.Terminate()
 	dl.chain.Stop()
-
-	os.RemoveAll(dl.freezer)
 }
 
 // newPeer registers a new block download source into the downloader.