text: --Arrange
  declare
    l_text     varchar2(32767) := 'A test char';
    l_value    blob := utl_raw.cast_to_raw(l_text);
    l_expected varchar2(32767) := ''''||rawtohex(l_value)||'''';
    l_result   varchar2(32767);
    l_delimiter varchar2(1);
  begin
  --Act
    l_result :=  ut_utils.to_String(l_value);
  --Assert
    if l_result = l_expected then
      :test_result := ut_utils.tr_success;
    else
      dbms_output.put_line('expected: '||l_expected||', got: '||l_result );
    end if;
  end;
  /
  