func Errorf(format string, a ...interface{}) error {
	e := fmt.Errorf(format, a...)
	ee := Error{}
	ee.msg = e.Error()
	ee.cause = errors.Unwrap(e)
	return ee
}

// Unwrap the internal error.
func (e Error) Unwrap() error { return e.cause }

// Error 'error' compatible method.
func (e Error) Error() string {
	if e.msg == "" {
		return "crypto: cause <nil>"
	}
	return e.msg
}

var (

		t.Errorf("Table with escape character, got %v", sql)
	}

	if DB.First(&User{}, "name = ?", user.Name).Error == nil {
		t.Errorf("Can't find a soft deleted record")
	}

	count = 0
	if DB.Model(&User{}).Where("name = ?", user.Name).Count(&count).Error != nil || count != 0 {
		t.Errorf("Count soft deleted record, expects: %v, got: %v", 0, count)
	}

	age = 0

	if err := DB.Save(&lang).Error; err != nil {
		t.Errorf("Failed to create, got error %v", err)
	}

	var result Language
	if err := DB.First(&result, "code = ?", lang.Code).Error; err != nil {
		t.Errorf("Failed to query lang, got error %v", err)
	} else {
		AssertEqual(t, result, lang)
	}

	lang.Name += "_new"
	if err := DB.Save(&lang).Error; err != nil {
		t.Errorf("Failed to create, got error %v", err)

						if err := tw.WriteHeader(file.hdr); err != nil {
							b.Errorf("unexpected WriteHeader error: %v", err)
						}
						if _, err := tw.Write(file.body); err != nil {
							b.Errorf("unexpected Write error: %v", err)
						}
					}
					if err := tw.Close(); err != nil {
						b.Errorf("unexpected Close error: %v", err)
					}
				}
			})
		}
	})

			t.Errorf("Test %d, Expected %v, got %v", i+1, tt.wantSc, gotSc)
			return
		}
		if tt.expectedError != nil && err.Error() != tt.expectedError.Error() {
			t.Errorf("Test %d, Expected `%v`, got `%v`", i+1, tt.expectedError, err)
		}
	}
}

func TestValidateParity(t *testing.T) {
	tests := []struct {
		rrsParity     int
		ssParity      int
		success       bool
		setDriveCount int
	}{

		t.Errorf("failed to find item parent, got error: %v", err)
	}
	if len(parents) != 1 {
		t.Errorf("expected %d parents, got %d", 1, len(parents))
	}

	// test delete
	if err := tx.Model(&item).Association("ItemParent").Unscoped().Delete(&parents); err != nil {
		t.Errorf("failed to delete item parent, got error: %v", err)
	}
	if err := tx.Find(&parents).Error; err != nil {

	}
	if written != 5 {
		t.Errorf("Expected written to be '5', but got %v", written)
	}

	f.Seek(0, io.SeekStart)
	r.Seek(0, io.SeekStart)

	written, err = CopyAligned(f, r, *bufp, r.Size(), f)
	if !errors.Is(err, nil) {
		t.Errorf("Expected nil, but got %v", err)
	}
	if written != r.Size() {
		t.Errorf("Expected written to be '%v', but got %v", r.Size(), written)
	}

		t.Errorf("no error should happen, but got %v", err)
	}

	if result.Name != "groupby1" || result.Total != 660 {
		t.Errorf("name should be groupby, total should be 660, but got %+v", result)
	}

	if err := DB.Model(&User{}).Select("name, sum(age) as total").Where("name LIKE ?", "groupby%").Group("name").Having("name = ?", "groupby1").Scan(&result).Error; err != nil {

		t.Errorf("no error should happen when query with embedded struct, but got %v", err)
	} else if egNews.BasePost.Title != "engadget_news" {
		t.Errorf("embedded struct's value should be scanned correctly")
	}

	var egPosts []EngadgetPost
	if err := DB.Order("author_name asc").Find(&egPosts).Error; err != nil {

			case err == nil:
				log.Warn("ztunnel protocol error, unexpected message")
				return fmt.Errorf("ztunnel protocol error, unexpected message")
			default:
				// we get here if error is deadline exceeded, which means ztunnel is alive.
			}

		case <-ctx.Done():
			return nil
		}
	}
}

func (z *ztunnelServer) PodDeleted(ctx context.Context, uid string) error {
	r := &zdsapi.WorkloadRequest{