all: simplify tests using t.TempDir() (#30150)

accounts/keystore/account_cache_test.go

@@ -114,7 +114,7 @@ func TestWatchNewFile(t *testing.T) {
 func TestWatchNoDir(t *testing.T) {
 	t.Parallel()
 	// Create ks but not the directory that it watches.
-	dir := filepath.Join(os.TempDir(), fmt.Sprintf("eth-keystore-watchnodir-test-%d-%d", os.Getpid(), rand.Int()))
+	dir := filepath.Join(t.TempDir(), fmt.Sprintf("eth-keystore-watchnodir-test-%d-%d", os.Getpid(), rand.Int()))
 	ks := NewKeyStore(dir, LightScryptN, LightScryptP)
 	list := ks.Accounts()
 	if len(list) > 0 {
@@ -126,7 +126,6 @@ func TestWatchNoDir(t *testing.T) {
 	}
 	// Create the directory and copy a key file into it.
 	os.MkdirAll(dir, 0700)
-	defer os.RemoveAll(dir)
 	file := filepath.Join(dir, "aaa")
 	if err := cp.CopyFile(file, cachetestAccounts[0].URL.Path); err != nil {
 		t.Fatal(err)

cmd/clef/consolecmd_test.go

@@ -27,9 +27,8 @@ import (
 // TestImportRaw tests clef --importraw
 func TestImportRaw(t *testing.T) {
 	t.Parallel()
-	keyPath := filepath.Join(os.TempDir(), fmt.Sprintf("%v-tempkey.test", t.Name()))
+	keyPath := filepath.Join(t.TempDir(), fmt.Sprintf("%v-tempkey.test", t.Name()))
 	os.WriteFile(keyPath, []byte("0102030405060708090a0102030405060708090a0102030405060708090a0102"), 0777)
-	t.Cleanup(func() { os.Remove(keyPath) })
 
 	t.Run("happy-path", func(t *testing.T) {
 		t.Parallel()
@@ -68,9 +67,8 @@ func TestImportRaw(t *testing.T) {
 // TestListAccounts tests clef --list-accounts
 func TestListAccounts(t *testing.T) {
 	t.Parallel()
-	keyPath := filepath.Join(os.TempDir(), fmt.Sprintf("%v-tempkey.test", t.Name()))
+	keyPath := filepath.Join(t.TempDir(), fmt.Sprintf("%v-tempkey.test", t.Name()))
 	os.WriteFile(keyPath, []byte("0102030405060708090a0102030405060708090a0102030405060708090a0102"), 0777)
-	t.Cleanup(func() { os.Remove(keyPath) })
 
 	t.Run("no-accounts", func(t *testing.T) {
 		t.Parallel()
@@ -97,9 +95,8 @@ func TestListAccounts(t *testing.T) {
 // TestListWallets tests clef --list-wallets
 func TestListWallets(t *testing.T) {
 	t.Parallel()
-	keyPath := filepath.Join(os.TempDir(), fmt.Sprintf("%v-tempkey.test", t.Name()))
+	keyPath := filepath.Join(t.TempDir(), fmt.Sprintf("%v-tempkey.test", t.Name()))
 	os.WriteFile(keyPath, []byte("0102030405060708090a0102030405060708090a0102030405060708090a0102"), 0777)
-	t.Cleanup(func() { os.Remove(keyPath) })
 
 	t.Run("no-accounts", func(t *testing.T) {
 		t.Parallel()

cmd/devp2p/internal/ethtest/suite_test.go

@@ -34,12 +34,12 @@ import (
 	"github.com/ethereum/go-ethereum/p2p"
 )
 
-func makeJWTSecret() (string, [32]byte, error) {
+func makeJWTSecret(t *testing.T) (string, [32]byte, error) {
 	var secret [32]byte
 	if _, err := crand.Read(secret[:]); err != nil {
 		return "", secret, fmt.Errorf("failed to create jwt secret: %v", err)
 	}
-	jwtPath := filepath.Join(os.TempDir(), "jwt_secret")
+	jwtPath := filepath.Join(t.TempDir(), "jwt_secret")
 	if err := os.WriteFile(jwtPath, []byte(hexutil.Encode(secret[:])), 0600); err != nil {
 		return "", secret, fmt.Errorf("failed to prepare jwt secret file: %v", err)
 	}
@@ -47,7 +47,7 @@ func makeJWTSecret() (string, [32]byte, error) {
 }
 
 func TestEthSuite(t *testing.T) {
-	jwtPath, secret, err := makeJWTSecret()
+	jwtPath, secret, err := makeJWTSecret(t)
 	if err != nil {
 		t.Fatalf("could not make jwt secret: %v", err)
 	}
@@ -75,7 +75,7 @@ func TestEthSuite(t *testing.T) {
 }
 
 func TestSnapSuite(t *testing.T) {
-	jwtPath, secret, err := makeJWTSecret()
+	jwtPath, secret, err := makeJWTSecret(t)
 	if err != nil {
 		t.Fatalf("could not make jwt secret: %v", err)
 	}

cmd/geth/exportcmd_test.go

@@ -28,8 +28,7 @@ import (
 // TestExport does a basic test of "geth export", exporting the test-genesis.
 func TestExport(t *testing.T) {
 	t.Parallel()
-	outfile := fmt.Sprintf("%v/testExport.out", os.TempDir())
-	defer os.Remove(outfile)
+	outfile := fmt.Sprintf("%v/testExport.out", t.TempDir())
 	geth := runGeth(t, "--datadir", initGeth(t), "export", outfile)
 	geth.WaitExit()
 	if have, want := geth.ExitStatus(), 0; have != want {

cmd/geth/logging_test.go

@@ -201,9 +201,8 @@ func TestFileOut(t *testing.T) {
 	var (
 		have, want []byte
 		err        error
-		path       = fmt.Sprintf("%s/test_file_out-%d", os.TempDir(), rand.Int63())
+		path       = fmt.Sprintf("%s/test_file_out-%d", t.TempDir(), rand.Int63())
 	)
-	t.Cleanup(func() { os.Remove(path) })
 	if want, err = runSelf(fmt.Sprintf("--log.file=%s", path), "logtest"); err != nil {
 		t.Fatal(err)
 	}
@@ -222,9 +221,8 @@ func TestRotatingFileOut(t *testing.T) {
 	var (
 		have, want []byte
 		err        error
-		path       = fmt.Sprintf("%s/test_file_out-%d", os.TempDir(), rand.Int63())
+		path       = fmt.Sprintf("%s/test_file_out-%d", t.TempDir(), rand.Int63())
 	)
-	t.Cleanup(func() { os.Remove(path) })
 	if want, err = runSelf(fmt.Sprintf("--log.file=%s", path), "--log.rotate", "logtest"); err != nil {
 		t.Fatal(err)
 	}

cmd/utils/export_test.go

@@ -29,18 +29,12 @@ import (
 
 // TestExport does basic sanity checks on the export/import functionality
 func TestExport(t *testing.T) {
-	f := fmt.Sprintf("%v/tempdump", os.TempDir())
-	defer func() {
-		os.Remove(f)
-	}()
+	f := fmt.Sprintf("%v/tempdump", t.TempDir())
 	testExport(t, f)
 }
 
 func TestExportGzip(t *testing.T) {
-	f := fmt.Sprintf("%v/tempdump.gz", os.TempDir())
-	defer func() {
-		os.Remove(f)
-	}()
+	f := fmt.Sprintf("%v/tempdump.gz", t.TempDir())
 	testExport(t, f)
 }
 
@@ -99,20 +93,14 @@ func testExport(t *testing.T, f string) {
 
 // TestDeletionExport tests if the deletion markers can be exported/imported correctly
 func TestDeletionExport(t *testing.T) {
-	f := fmt.Sprintf("%v/tempdump", os.TempDir())
-	defer func() {
-		os.Remove(f)
-	}()
+	f := fmt.Sprintf("%v/tempdump", t.TempDir())
 	testDeletion(t, f)
 }
 
 // TestDeletionExportGzip tests if the deletion markers can be exported/imported
 // correctly with gz compression.
 func TestDeletionExportGzip(t *testing.T) {
-	f := fmt.Sprintf("%v/tempdump.gz", os.TempDir())
-	defer func() {
-		os.Remove(f)
-	}()
+	f := fmt.Sprintf("%v/tempdump.gz", t.TempDir())
 	testDeletion(t, f)
 }
 
@@ -171,10 +159,7 @@ func testDeletion(t *testing.T, f string) {
 // TestImportFutureFormat tests that we reject unsupported future versions.
 func TestImportFutureFormat(t *testing.T) {
 	t.Parallel()
-	f := fmt.Sprintf("%v/tempdump-future", os.TempDir())
-	defer func() {
-		os.Remove(f)
-	}()
+	f := fmt.Sprintf("%v/tempdump-future", t.TempDir())
 	fh, err := os.OpenFile(f, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm)
 	if err != nil {
 		t.Fatal(err)

core/rawdb/freezer_meta_test.go

@@ -22,10 +22,11 @@ import (
 )
 
 func TestReadWriteFreezerTableMeta(t *testing.T) {
-	f, err := os.CreateTemp(os.TempDir(), "*")
+	f, err := os.CreateTemp(t.TempDir(), "*")
 	if err != nil {
 		t.Fatalf("Failed to create file %v", err)
 	}
+	defer f.Close()
 	err = writeMetadata(f, newMetadata(100))
 	if err != nil {
 		t.Fatalf("Failed to write metadata %v", err)
@@ -43,10 +44,11 @@ func TestReadWriteFreezerTableMeta(t *testing.T) {
 }
 
 func TestInitializeFreezerTableMeta(t *testing.T) {
-	f, err := os.CreateTemp(os.TempDir(), "*")
+	f, err := os.CreateTemp(t.TempDir(), "*")
 	if err != nil {
 		t.Fatalf("Failed to create file %v", err)
 	}
+	defer f.Close()
 	meta, err := loadMetadata(f, uint64(100))
 	if err != nil {
 		t.Fatalf("Failed to read metadata %v", err)