test: use T.TempDir to create temporary test directory

cdc/owner/changefeed_test.go

@@ -16,7 +16,6 @@ package owner
 import (
 	"context"
 	"encoding/json"
-	"io/ioutil"
 	"math"
 	"os"
 	"path/filepath"
@@ -479,9 +478,7 @@ func TestRemoveChangefeed(t *testing.T) {
 	baseCtx, cancel := context.WithCancel(context.Background())
 	ctx := cdcContext.NewContext4Test(baseCtx, true)
 	info := ctx.ChangefeedVars().Info
-	dir, err := ioutil.TempDir("", "remove-changefeed-test")
-	require.NoError(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 	info.Config.Consistent = &config.ConsistentConfig{
 		Level:   "eventual",
 		Storage: filepath.Join("nfs://", dir),
@@ -498,9 +495,7 @@ func TestRemovePausedChangefeed(t *testing.T) {
 	ctx := cdcContext.NewContext4Test(baseCtx, true)
 	info := ctx.ChangefeedVars().Info
 	info.State = model.StateStopped
-	dir, err := ioutil.TempDir("", "remove-paused-changefeed-test")
-	require.NoError(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 	info.Config.Consistent = &config.ConsistentConfig{
 		Level:   "eventual",
 		Storage: filepath.Join("nfs://", dir),

cdc/redo/reader/file_test.go

@@ -17,7 +17,6 @@ import (
 	"bufio"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"testing"
@@ -40,17 +39,13 @@ func TestReaderNewReader(t *testing.T) {
 	_, err := newReader(context.Background(), nil)
 	require.NotNil(t, err)
 
-	dir, err := ioutil.TempDir("", "redo-newReader")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 	_, err = newReader(context.Background(), &readerConfig{dir: dir})
 	require.Nil(t, err)
 }
 
 func TestReaderRead(t *testing.T) {
-	dir, err := ioutil.TempDir("", "redo-reader")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	cfg := &writer.FileWriterConfig{
 		MaxLogSize:   100000,
@@ -104,9 +99,7 @@ func TestReaderRead(t *testing.T) {
 }
 
 func TestReaderOpenSelectedFiles(t *testing.T) {
-	dir, err := ioutil.TempDir("", "redo-openSelectedFiles")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
@@ -158,9 +151,7 @@ func TestReaderOpenSelectedFiles(t *testing.T) {
 	f1, err := os.Create(path)
 	require.Nil(t, err)
 
-	dir1, err := ioutil.TempDir("", "redo-openSelectedFiles1")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir1) //nolint:errcheck
+	dir1 := t.TempDir()
 	fileName = fmt.Sprintf(common.RedoLogFileFormatV2, "cp", "default", "test-cf",
 		common.DefaultDDLLogFileType, 11, uuidGen.NewString(), common.LogEXT+"test")
 	path = filepath.Join(dir1, fileName)

cdc/redo/reader/reader_test.go

@@ -17,7 +17,6 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/url"
 	"os"
 	"path/filepath"
@@ -44,9 +43,7 @@ func TestNewLogReader(t *testing.T) {
 	_, err = NewLogReader(context.Background(), &LogReaderConfig{})
 	require.Nil(t, err)
 
-	dir, err := ioutil.TempDir("", "redo-NewLogReader")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	s3URI, err := url.Parse("s3://logbucket/test-changefeed?endpoint=http://111/")
 	require.Nil(t, err)
@@ -75,9 +72,7 @@ func TestNewLogReader(t *testing.T) {
 }
 
 func TestLogReaderResetReader(t *testing.T) {
-	dir, err := ioutil.TempDir("", "redo-ResetReader")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
@@ -237,9 +232,7 @@ func TestLogReaderResetReader(t *testing.T) {
 }
 
 func TestLogReaderReadMeta(t *testing.T) {
-	dir, err := ioutil.TempDir("", "redo-ReadMeta")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	fileName := fmt.Sprintf("%s_%s_%d_%s%s", "cp",
 		"test-changefeed",
@@ -271,9 +264,7 @@ func TestLogReaderReadMeta(t *testing.T) {
 	_, err = f.Write(data)
 	require.Nil(t, err)
 
-	dir1, err := ioutil.TempDir("", "redo-NoReadMeta")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir1)
+	dir1 := t.TempDir()
 
 	tests := []struct {
 		name                             string

cdc/redo/writer/file_test.go

@@ -45,9 +45,7 @@ func TestMain(m *testing.M) {
 }
 
 func TestWriterWrite(t *testing.T) {
-	dir, err := ioutil.TempDir("", "redo-writer")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	cfs := []model.ChangeFeedID{
 		model.DefaultChangeFeedID("test-cf"),
@@ -88,7 +86,7 @@ func TestWriterWrite(t *testing.T) {
 		}
 
 		w.eventCommitTS.Store(1)
-		_, err = w.Write([]byte("tes1t11111"))
+		_, err := w.Write([]byte("tes1t11111"))
 		require.Nil(t, err)
 		var fileName string
 		// create a .tmp file
@@ -207,9 +205,7 @@ func TestWriterWrite(t *testing.T) {
 }
 
 func TestWriterGC(t *testing.T) {
-	dir, err := ioutil.TempDir("", "redo-GC")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	uuidGen := uuid.NewConstGenerator("const-uuid")
 	controller := gomock.NewController(t)
@@ -265,7 +261,7 @@ func TestWriterGC(t *testing.T) {
 	}
 	w.running.Store(true)
 	w.eventCommitTS.Store(1)
-	_, err = w.Write([]byte("t1111"))
+	_, err := w.Write([]byte("t1111"))
 	require.Nil(t, err)
 	w.eventCommitTS.Store(2)
 	_, err = w.Write([]byte("t2222"))
@@ -318,9 +314,7 @@ func TestNewWriter(t *testing.T) {
 	s3URI, err := url.Parse("s3://logbucket/test-changefeed?endpoint=http://111/")
 	require.Nil(t, err)
 
-	dir, err := ioutil.TempDir("", "redo-NewWriter")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	uuidGen := uuid.NewConstGenerator("const-uuid")
 	w, err := NewWriter(context.Background(), &FileWriterConfig{

cdc/redo/writer/writer_test.go

@@ -16,7 +16,6 @@ package writer
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
 	"math"
 	"net/url"
 	"os"
@@ -303,9 +302,7 @@ func TestLogWriterFlushLog(t *testing.T) {
 		},
 	}
 
-	dir, err := ioutil.TempDir("", "redo-FlushLog")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	for _, tt := range tests {
 		controller := gomock.NewController(t)
@@ -394,9 +391,7 @@ func TestLogWriterEmitCheckpointTs(t *testing.T) {
 		},
 	}
 
-	dir, err := ioutil.TempDir("", "redo-EmitCheckpointTs")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	for _, tt := range tests {
 		controller := gomock.NewController(t)
@@ -486,9 +481,7 @@ func TestLogWriterEmitResolvedTs(t *testing.T) {
 		},
 	}
 
-	dir, err := ioutil.TempDir("", "redo-ResolvedTs")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	for _, tt := range tests {
 		controller := gomock.NewController(t)
@@ -568,9 +561,7 @@ func TestLogWriterGetCurrentResolvedTs(t *testing.T) {
 		},
 	}
 
-	dir, err := ioutil.TempDir("", "redo-GetCurrentResolvedTs")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 
 	for _, tt := range tests {
 		mockWriter := &mockFileWriter{}
@@ -654,9 +645,7 @@ func TestNewLogWriter(t *testing.T) {
 	require.Nil(t, err)
 	require.NotSame(t, ll, ll2)
 
-	dir, err := ioutil.TempDir("", "redo-NewLogWriter")
-	require.Nil(t, err)
-	defer os.RemoveAll(dir)
+	dir := t.TempDir()
 	fileName := fmt.Sprintf("%s_%s_%d_%s%s", "cp", "test-changefeed", time.Now().Unix(), common.DefaultMetaFileType, common.MetaEXT)
 	path := filepath.Join(dir, fileName)
 	f, err := os.Create(path)
@@ -832,10 +821,9 @@ func TestDeleteAllLogs(t *testing.T) {
 	}
 
 	for _, tt := range tests {
-		dir, err := ioutil.TempDir("", "redo-DeleteAllLogs")
-		require.Nil(t, err)
+		dir := t.TempDir()
 		path := filepath.Join(dir, fileName)
-		_, err = os.Create(path)
+		_, err := os.Create(path)
 		require.Nil(t, err)
 		path = filepath.Join(dir, fileName1)
 		_, err = os.Create(path)
@@ -884,7 +872,6 @@ func TestDeleteAllLogs(t *testing.T) {
 				require.True(t, os.IsNotExist(err), tt.name)
 			}
 		}
-		os.RemoveAll(dir)
 		getAllFilesInS3 = origin
 	}
 }

dm/pkg/storage/utils_test.go

@@ -170,7 +170,6 @@ func TestCollectDirFilesAndRemove(t *testing.T) {
 
 	// test local
 	localDir := t.TempDir()
-	defer os.RemoveAll(localDir)
 	for _, fileName := range fileNames {
 		f, err := os.Create(path.Join(localDir, fileName))
 		require.NoError(t, err)

dm/relay/meta_test.go

@@ -37,9 +37,7 @@ type MetaTestCase struct {
 }
 
 func (r *testMetaSuite) TestLocalMeta(c *C) {
-	dir, err := os.MkdirTemp("", "test_local_meta")
-	c.Assert(err, IsNil)
-	defer os.RemoveAll(dir)
+	dir := c.MkDir()
 
 	gset0, _ := gtid.ParserGTID("mysql", "")
 	gset1, _ := gtid.ParserGTID("mysql", "85ab69d1-b21f-11e6-9c5e-64006a8978d2:1-12")
@@ -77,7 +75,7 @@ func (r *testMetaSuite) TestLocalMeta(c *C) {
 
 	// load, but empty
 	lm := NewLocalMeta("mysql", dir)
-	err = lm.Load()
+	err := lm.Load()
 	c.Assert(err, IsNil)
 
 	uuid, pos := lm.Pos()

dm/relay/purger_helper_test.go

@@ -35,9 +35,7 @@ func (t *testPurgerSuite) TestPurgeRelayFilesBeforeFile(c *C) {
 	c.Assert(files, IsNil)
 
 	// create relay log dir
-	baseDir, err := os.MkdirTemp("", "test_get_relay_files_before_file")
-	c.Assert(err, IsNil)
-	defer os.RemoveAll(baseDir)
+	baseDir := c.MkDir()
 	// empty relay log dirs
 	safeRelay = &streamer.RelayLogInfo{
 		SubDir: t.uuids[len(t.uuids)-1],
@@ -120,9 +118,7 @@ func (t *testPurgerSuite) TestPurgeRelayFilesBeforeFile(c *C) {
 
 func (t *testPurgerSuite) TestPurgeRelayFilesBeforeFileAndTime(c *C) {
 	// create relay log dir
-	baseDir, err := os.MkdirTemp("", "test_get_relay_files_before_file_and_time")
-	c.Assert(err, IsNil)
-	defer os.RemoveAll(baseDir)
+	baseDir := c.MkDir()
 
 	// empty relay log dirs
 	safeRelay := &streamer.RelayLogInfo{