t.Fatalf("no error should happen when migrate scanner, valuer struct, got error %v", err)
	}

	data := SerializerStruct{}

	if err := DB.Create(&data).Error; err != nil {
		t.Fatalf("failed to create data, got error %v", err)
	}

	var result SerializerStruct
	if err := DB.First(&result, data.ID).Error; err != nil {
		t.Fatalf("failed to query data, got error %v", err)
	}

pkg database/sql, method (*Conn) BeginTx(context.Context, *TxOptions) (*Tx, error)
pkg database/sql, method (*Conn) Close() error
pkg database/sql, method (*Conn) ExecContext(context.Context, string, ...interface{}) (Result, error)
pkg database/sql, method (*Conn) PingContext(context.Context) error
pkg database/sql, method (*Conn) PrepareContext(context.Context, string) (*Stmt, error)

	return &s3Error{
		code:       "InvalidQuery",
		message:    err.Error(),
		statusCode: 400,
		cause:      err,
	}
}

func errBadTableName(err error) *s3Error {
	return &s3Error{
		code:       "BadTableName",
		message:    fmt.Sprintf("The table name is not supported: %v", err),
		statusCode: 400,
		cause:      err,
	}
}

func errDataSource(err error) *s3Error {
	return &s3Error{

// specified by the developer. The purpose is to simulate errors
// that are hard to simulate in practice like DiskNotFound.
// Programmed errors are stored in errors field.
type naughtyDisk struct {
	// The real disk
	disk StorageAPI
	// Programmed errors: API call number => error to return
	errors map[int]error
	// The error to return when no error value is programmed
	defaultErr error

var (
	defaultKeyFunc = func(claim *MapClaims) ([]byte, error) { return []byte("HelloSecret"), nil }
	emptyKeyFunc   = func(claim *MapClaims) ([]byte, error) { return nil, nil }
	errorKeyFunc   = func(claim *MapClaims) ([]byte, error) { return nil, fmt.Errorf("error loading key") }
)

var jwtTestData = []struct {
	name        string
	tokenString string
	keyfunc     func(*MapClaims) ([]byte, error)
	claims      jwt.Claims
	valid       bool

package dns

// Error - DNS related errors error.
type Error struct {
	Bucket string
	Err    error
}

// ErrInvalidBucketName for buckets with invalid name
type ErrInvalidBucketName Error

func (e ErrInvalidBucketName) Error() string {
	return e.Bucket + " invalid bucket name error: " + e.Err.Error()
}

func (e Error) Error() string {
	return "dns related error: " + e.Err.Error()
}

    /** Name service error class */
    public static final int ERR_NAM_SRVC = 0x01;
    /** Session service error class */
    public static final int ERR_SSN_SRVC = 0x02;

    // name service error codes
    /** Format error in the name service */
    public static final int FMT_ERR = 0x1;
    /** Server error in the name service */
    public static final int SRV_ERR = 0x2;
    /** Implementation error in the name service */

		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 {

func (target *MQTTTarget) Close() error {
	if target.client != nil {
		target.client.Disconnect(100)
	}
	close(target.quitCh)
	return nil
}

func (target *MQTTTarget) init() error {
	return target.initOnce.Do(target.initMQTT)
}

func (target *MQTTTarget) initMQTT() error {
	args := target.args

	// Using hex here, to make sure we avoid 23

func (z *StatusType) DecodeMsg(dc *msgp.Reader) (err error) {
	{
		var zb0001 string
		zb0001, err = dc.ReadString()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		(*z) = StatusType(zb0001)
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z StatusType) EncodeMsg(en *msgp.Writer) (err error) {
	err = en.WriteString(string(z))
	if err != nil {