Function LoadImageHash

testutil/image_hash.go:128–152

LoadImageHash loads a hash from a reader

(r io.Reader)

// LoadImageHash loads a hash from a reader
func LoadImageHash(r io.Reader) (*ImageHash, error) {
	h := &ImageHash{}

	// Read type byte
	if err := binary.Read(r, binary.LittleEndian, &h.hashType); err != nil {
		return nil, fmt.Errorf("failed to read hash type: %w", err)
	}

	switch h.hashType {
	case HashTypeSHA256:
		if _, err := io.ReadFull(r, h.sha256Hash[:]); err != nil {
			return nil, fmt.Errorf("failed to read SHA256 hash: %w", err)
		}

	case HashTypeDct:
		if err := h.loadDctHash(r); err != nil {
			return nil, err
		}

	default:
		return nil, fmt.Errorf("unsupported hash type: %d", h.hashType)
	}

	return h, nil
}

// String returns a string representation of the hash
func (h *ImageHash) String() string {