func (h *HTTPRangeSpec) GetLength(resourceSize int64) (rangeLength int64, err error) {
	switch {
	case resourceSize < 0:
		return 0, errors.New("Resource size cannot be negative")

	case h == nil:
		rangeLength = resourceSize

	case h.IsSuffixLength:
		specifiedLen := -h.Start
		rangeLength = min(specifiedLen, resourceSize)

	case h.Start >= resourceSize:
		return 0, InvalidRange{
			OffsetBegin:  h.Start,

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"testing"
)

func TestHTTPRequestRangeSpec(t *testing.T) {
	resourceSize := int64(10)
	validRangeSpecs := []struct {
		spec                 string
		expOffset, expLength int64
	}{
		{"bytes=0-", 0, 10},
		{"bytes=1-", 1, 9},
		{"bytes=0-9", 0, 10},
		{"bytes=1-10", 1, 9},

// e.g. 'bytes=3-10'. Other use cases will be rejected.
func checkCopyPartRangeWithSize(rs *HTTPRangeSpec, resourceSize int64) (err error) {
	if rs == nil {
		return nil
	}
	if rs.IsSuffixLength || rs.Start >= resourceSize || rs.End >= resourceSize {
		return errInvalidRangeSource
	}
	return nil

	return e.Bucket + "/" + e.Object + " has incomplete body"
}

// InvalidRange - invalid range typed error.
type InvalidRange struct {
	OffsetBegin  int64
	OffsetEnd    int64
	ResourceSize int64
}

func (e InvalidRange) Error() string {
	return fmt.Sprintf("The requested range 'bytes=%d-%d' is not satisfiable", e.OffsetBegin, e.OffsetEnd)
}

		case InvalidRange:
			apiErr = APIError{
				Code:           "InvalidRange",
				Description:    e.Error(),
				HTTPStatusCode: errorCodes[ErrInvalidRange].HTTPStatusCode,
				ObjectSize:     strconv.FormatInt(e.ResourceSize, 10),
				RangeRequested: fmt.Sprintf("%d-%d", e.OffsetBegin, e.OffsetEnd),
			}
		case InvalidArgument:
			apiErr = APIError{
				Code:           "InvalidArgument",
				Description:    e.Error(),