diff --git a/errors_13_test.go b/errors_13_test.go
index 1066f059..c85c1a39 100644
--- a/errors_13_test.go
+++ b/errors_13_test.go
@@ -3,6 +3,7 @@
 package gorm_test
 
 import (
+	"errors"
 	"fmt"
 	"testing"
 
@@ -10,14 +11,32 @@ import (
 )
 
 func TestNotFound(t *testing.T) {
-	var user User
-	err := DB.Where("name = ?", "not found").First(&user).Error
-	if err != gorm.ErrRecordNotFound {
-		t.Error("should not found")
+	var errs = []error{
+		gorm.ErrRecordNotFound,
+		fmt.Errorf("get user fail: %w", gorm.ErrRecordNotFound),
+		gorm.Errors{gorm.ErrRecordNotFound, gorm.ErrRecordNotFound},
+		gorm.Errors{fmt.Errorf("get user fail: %w", gorm.ErrRecordNotFound), gorm.ErrRecordNotFound},
+		gorm.Errors{gorm.ErrRecordNotFound, fmt.Errorf("get user fail: %w", gorm.ErrRecordNotFound)},
+		gorm.Errors{fmt.Errorf("get user fail: %w", gorm.ErrRecordNotFound), fmt.Errorf("get user fail: %w", gorm.ErrRecordNotFound)},
+		gorm.Errors{gorm.Errors{fmt.Errorf("get user fail: %w", gorm.ErrRecordNotFound), gorm.ErrRecordNotFound}, gorm.ErrRecordNotFound},
 	}
 
-	err = fmt.Errorf("get user fail: %w", err)
-	if !gorm.IsRecordNotFoundError(err) {
-		t.Errorf("%s should IsRecordNotFoundError", err)
+	for _, err := range errs {
+		if !gorm.IsRecordNotFoundError(err) {
+			t.Errorf("%s should be ErrRecordNotFound", err)
+		}
+	}
+
+	errs = []error{
+		errors.New("err"),
+		fmt.Errorf("get user fail: %s", gorm.ErrRecordNotFound),
+		fmt.Errorf("get user fail: %v", gorm.ErrRecordNotFound),
+		fmt.Errorf("get user fail: %+v", gorm.ErrRecordNotFound),
+	}
+
+	for _, err := range errs {
+		if gorm.IsRecordNotFoundError(err) {
+			t.Errorf("%s should not be ErrRecordNotFound", err)
+		}
 	}
 }