diff --git a/core/logx/rotatelogger_test.go b/core/logx/rotatelogger_test.go
index ab0bb2a0..6079c3b1 100644
--- a/core/logx/rotatelogger_test.go
+++ b/core/logx/rotatelogger_test.go
@@ -2,6 +2,7 @@ package logx
 
 import (
 	"os"
+	"path"
 	"path/filepath"
 	"syscall"
 	"testing"
@@ -13,18 +14,58 @@ import (
 )
 
 func TestDailyRotateRuleMarkRotated(t *testing.T) {
-	var rule DailyRotateRule
-	rule.MarkRotated()
-	assert.Equal(t, getNowDate(), rule.rotatedTime)
+	t.Run("daily rule", func(t *testing.T) {
+		var rule DailyRotateRule
+		rule.MarkRotated()
+		assert.Equal(t, getNowDate(), rule.rotatedTime)
+	})
+
+	t.Run("daily rule", func(t *testing.T) {
+		rule := DefaultRotateRule("test", "-", 1, false)
+		_, ok := rule.(*DailyRotateRule)
+		assert.True(t, ok)
+	})
 }
 
 func TestDailyRotateRuleOutdatedFiles(t *testing.T) {
-	var rule DailyRotateRule
-	assert.Empty(t, rule.OutdatedFiles())
-	rule.days = 1
-	assert.Empty(t, rule.OutdatedFiles())
-	rule.gzip = true
-	assert.Empty(t, rule.OutdatedFiles())
+	t.Run("no files", func(t *testing.T) {
+		var rule DailyRotateRule
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.days = 1
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.gzip = true
+		assert.Empty(t, rule.OutdatedFiles())
+	})
+
+	t.Run("bad files", func(t *testing.T) {
+		rule := DailyRotateRule{
+			filename: "[a-z",
+		}
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.days = 1
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.gzip = true
+		assert.Empty(t, rule.OutdatedFiles())
+	})
+
+	t.Run("temp files", func(t *testing.T) {
+		boundary := time.Now().Add(-time.Hour * time.Duration(hoursPerDay) * 2).Format(dateFormat)
+		f1, err := os.CreateTemp(os.TempDir(), "go-zero-test-"+boundary)
+		assert.NoError(t, err)
+		_ = f1.Close()
+		f2, err := os.CreateTemp(os.TempDir(), "go-zero-test-"+boundary)
+		assert.NoError(t, err)
+		_ = f2.Close()
+		t.Cleanup(func() {
+			_ = os.Remove(f1.Name())
+			_ = os.Remove(f2.Name())
+		})
+		rule := DailyRotateRule{
+			filename: path.Join(os.TempDir(), "go-zero-test-"),
+			days:     1,
+		}
+		assert.NotEmpty(t, rule.OutdatedFiles())
+	})
 }
 
 func TestDailyRotateRuleShallRotate(t *testing.T) {
@@ -34,20 +75,101 @@ func TestDailyRotateRuleShallRotate(t *testing.T) {
 }
 
 func TestSizeLimitRotateRuleMarkRotated(t *testing.T) {
-	var rule SizeLimitRotateRule
-	rule.MarkRotated()
-	assert.Equal(t, getNowDateInRFC3339Format(), rule.rotatedTime)
+	t.Run("size limit rule", func(t *testing.T) {
+		var rule SizeLimitRotateRule
+		rule.MarkRotated()
+		assert.Equal(t, getNowDateInRFC3339Format(), rule.rotatedTime)
+	})
+
+	t.Run("size limit rule", func(t *testing.T) {
+		rule := NewSizeLimitRotateRule("foo", "-", 1, 1, 1, false)
+		rule.MarkRotated()
+		assert.Equal(t, getNowDateInRFC3339Format(), rule.(*SizeLimitRotateRule).rotatedTime)
+	})
 }
 
 func TestSizeLimitRotateRuleOutdatedFiles(t *testing.T) {
-	var rule SizeLimitRotateRule
-	assert.Empty(t, rule.OutdatedFiles())
-	rule.days = 1
-	assert.Empty(t, rule.OutdatedFiles())
-	rule.gzip = true
-	assert.Empty(t, rule.OutdatedFiles())
-	rule.maxBackups = 0
-	assert.Empty(t, rule.OutdatedFiles())
+	t.Run("no files", func(t *testing.T) {
+		var rule SizeLimitRotateRule
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.days = 1
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.gzip = true
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.maxBackups = 0
+		assert.Empty(t, rule.OutdatedFiles())
+	})
+
+	t.Run("bad files", func(t *testing.T) {
+		rule := SizeLimitRotateRule{
+			DailyRotateRule: DailyRotateRule{
+				filename: "[a-z",
+			},
+		}
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.days = 1
+		assert.Empty(t, rule.OutdatedFiles())
+		rule.gzip = true
+		assert.Empty(t, rule.OutdatedFiles())
+	})
+
+	t.Run("temp files", func(t *testing.T) {
+		boundary := time.Now().Add(-time.Hour * time.Duration(hoursPerDay) * 2).Format(dateFormat)
+		f1, err := os.CreateTemp(os.TempDir(), "go-zero-test-"+boundary)
+		assert.NoError(t, err)
+		f2, err := os.CreateTemp(os.TempDir(), "go-zero-test-"+boundary)
+		assert.NoError(t, err)
+		boundary1 := time.Now().Add(time.Hour * time.Duration(hoursPerDay) * 2).Format(dateFormat)
+		f3, err := os.CreateTemp(os.TempDir(), "go-zero-test-"+boundary1)
+		assert.NoError(t, err)
+		t.Cleanup(func() {
+			_ = f1.Close()
+			_ = os.Remove(f1.Name())
+			_ = f2.Close()
+			_ = os.Remove(f2.Name())
+			_ = f3.Close()
+			_ = os.Remove(f3.Name())
+		})
+		rule := SizeLimitRotateRule{
+			DailyRotateRule: DailyRotateRule{
+				filename: path.Join(os.TempDir(), "go-zero-test-"),
+				days:     1,
+			},
+			maxBackups: 3,
+		}
+		assert.NotEmpty(t, rule.OutdatedFiles())
+	})
+
+	t.Run("no backups", func(t *testing.T) {
+		boundary := time.Now().Add(-time.Hour * time.Duration(hoursPerDay) * 2).Format(dateFormat)
+		f1, err := os.CreateTemp(os.TempDir(), "go-zero-test-"+boundary)
+		assert.NoError(t, err)
+		f2, err := os.CreateTemp(os.TempDir(), "go-zero-test-"+boundary)
+		assert.NoError(t, err)
+		boundary1 := time.Now().Add(time.Hour * time.Duration(hoursPerDay) * 2).Format(dateFormat)
+		f3, err := os.CreateTemp(os.TempDir(), "go-zero-test-"+boundary1)
+		assert.NoError(t, err)
+		t.Cleanup(func() {
+			_ = f1.Close()
+			_ = os.Remove(f1.Name())
+			_ = f2.Close()
+			_ = os.Remove(f2.Name())
+			_ = f3.Close()
+			_ = os.Remove(f3.Name())
+		})
+		rule := SizeLimitRotateRule{
+			DailyRotateRule: DailyRotateRule{
+				filename: path.Join(os.TempDir(), "go-zero-test-"),
+				days:     1,
+			},
+		}
+		assert.NotEmpty(t, rule.OutdatedFiles())
+
+		logger := new(RotateLogger)
+		logger.rule = &rule
+		logger.maybeDeleteOutdatedFiles()
+		assert.Empty(t, rule.OutdatedFiles())
+	})
 }
 
 func TestSizeLimitRotateRuleShallRotate(t *testing.T) {
@@ -61,14 +183,26 @@ func TestSizeLimitRotateRuleShallRotate(t *testing.T) {
 }
 
 func TestRotateLoggerClose(t *testing.T) {
-	filename, err := fs.TempFilenameWithText("foo")
-	assert.Nil(t, err)
-	if len(filename) > 0 {
-		defer os.Remove(filename)
-	}
-	logger, err := NewLogger(filename, new(DailyRotateRule), false)
-	assert.Nil(t, err)
-	assert.Nil(t, logger.Close())
+	t.Run("close", func(t *testing.T) {
+		filename, err := fs.TempFilenameWithText("foo")
+		assert.Nil(t, err)
+		if len(filename) > 0 {
+			defer os.Remove(filename)
+		}
+		logger, err := NewLogger(filename, new(DailyRotateRule), false)
+		assert.Nil(t, err)
+		_, err = logger.Write([]byte("foo"))
+		assert.Nil(t, err)
+		assert.Nil(t, logger.Close())
+	})
+
+	t.Run("close and write", func(t *testing.T) {
+		logger := new(RotateLogger)
+		logger.done = make(chan struct{})
+		close(logger.done)
+		_, err := logger.Write([]byte("foo"))
+		assert.ErrorIs(t, err, ErrLogFileClosed)
+	})
 }
 
 func TestRotateLoggerGetBackupFilename(t *testing.T) {