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marshallerMock.go
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/
marshallerMock.go
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package mock
import (
"encoding/json"
"errors"
)
// ErrMockMarshaller -
var ErrMockMarshaller = errors.New("MarshallerMock generic error")
// MarshallerMock that will be used for testing
type MarshallerMock struct {
Fail bool
}
// Marshal converts the input object in a slice of bytes
func (mm *MarshallerMock) Marshal(obj interface{}) ([]byte, error) {
if mm.Fail {
return nil, ErrMockMarshaller
}
if obj == nil {
return nil, errors.New("nil object to serilize from")
}
return json.Marshal(obj)
}
// Unmarshal applies the serialized values over an instantiated object
func (mm *MarshallerMock) Unmarshal(obj interface{}, buff []byte) error {
if mm.Fail {
return ErrMockMarshaller
}
if obj == nil {
return errors.New("nil object to serilize to")
}
if buff == nil {
return errors.New("nil byte buffer to deserialize from")
}
if len(buff) == 0 {
return errors.New("empty byte buffer to deserialize from")
}
return json.Unmarshal(buff, obj)
}
// IsInterfaceNil returns true if there is no value under the interface
func (mm *MarshallerMock) IsInterfaceNil() bool {
return mm == nil
}