}
	objectSize := int64(10)

	for _, successCase := range successCases {
		rs, err := parseCopyPartRangeSpec(successCase.rangeString)
		if err != nil {
			t.Fatalf("expected: <nil>, got: %s", err)
		}

		start, length, err1 := rs.GetOffsetLength(objectSize)
		if err1 != nil {
			t.Fatalf("expected: <nil>, got: %s", err1)
		}

		if start != successCase.offsetBegin {