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|
-- CXAA011.A
--
-- Grant of Unlimited Rights
--
-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
-- unlimited rights in the software and documentation contained herein.
-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
-- this public release, the Government intends to confer upon all
-- recipients unlimited rights equal to those held by the Government.
-- These rights include rights to use, duplicate, release or disclose the
-- released technical data and computer software in whole or in part, in
-- any manner and for any purpose whatsoever, and to have or permit others
-- to do so.
--
-- DISCLAIMER
--
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
-- PARTICULAR PURPOSE OF SAID MATERIAL.
--*
--
-- OBJECTIVE:
-- Check that the operations of Text_IO.Enumeration_IO perform correctly
-- on files of Append_File mode, for instantiations using
-- enumeration types. Check that Enumeration_IO procedures Put and Get
-- properly transfer enumeration data to/from data files.
-- Check that the formatting parameters available in the package can
-- be used and modified successfully in the storage and retrieval of data.
--
-- TEST DESCRIPTION:
-- This test is designed to simulate an environment where a data file
-- that holds enumeration type information is reset from it current mode
-- to allow the appending of data to the end of the This process
-- of Reset/Write can be repeated as necessary. All data written
-- to the file is verified for accuracy when retrieved from the file.
--
-- This test verifies issues of resetting a file created in Out_File mode
-- to Append_File mode, resetting from Append_File mode to In_File mode,
-- as well as a variety of Text_IO and Enumeration_IO predefined
-- subprograms.
--
-- APPLICABILITY CRITERIA:
-- This test is applicable only to implementations that support text
-- files.
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
-- 25 Feb 97 PWB.CTA Allowed for non-support of some IO operations
--!
with Ada.Text_IO;
with Report;
procedure CXAA011 is
use Ada;
Status_Log : Text_IO.File_Type;
Status_Log_Filename : constant String :=
Report.Legal_File_Name ( Nam => "CXAA011" );
Incomplete : exception;
begin
Report.Test ("CXAA011", "Check that the operations of " &
"Text_IO.Enumeration_IO operate correctly for " &
"files with mode Append_File");
Test_for_Text_IO_Support:
begin
-- An implementation that does not support Text_IO in a particular
-- environment will raise Use_Error on calls to various
-- Text_IO operations. This block statement encloses a call to
-- Create, which should raise the exception in a non-supportive
-- environment. This exception will be handled to produce a
-- Not_Applicable result.
Text_IO.Create (File => Status_Log,
Mode => Text_IO.Out_File,
Name => Status_Log_Filename);
exception
when Text_IO.Use_Error | Text_IO.Name_Error =>
Report.Not_Applicable
( "Files not supported - Create as Out_File for Text_IO" );
raise Incomplete;
end Test_for_Text_IO_Support;
Operational_Test_Block:
declare
type Days_In_Week is (Monday, Tuesday, Wednesday, Thursday, Friday,
Saturday, Sunday);
type Hours_In_Day is (A0000, A0600, P1200, P0600); -- Six hour
-- blocks.
type Status_Type is (Operational, Off_Line);
type Status_Record_Type is record
Day : Days_In_Week;
Hour : Hours_In_Day;
Status : Status_Type;
end record;
Morning_Reading : Status_Record_Type :=
(Wednesday, A0600, Operational);
Evening_Reading : Status_Record_Type :=
(Saturday, P0600, Off_Line);
package Day_IO is new Text_IO.Enumeration_IO (Days_In_Week);
package Hours_IO is new Text_IO.Enumeration_IO (Hours_In_Day);
package Status_IO is new Text_IO.Enumeration_IO (Status_Type);
-- The following function simulates the hourly recording of equipment
-- status.
function Record_Status (Reading : Status_Record_Type)
return Boolean is
use Text_IO; -- To provide visibility to type Type_Set and
-- enumeration literal Upper_Case.
begin
Day_IO.Put (File => Status_Log,
Item => Reading.Day,
Set => Type_Set'(Upper_Case));
Hours_IO.Put (Status_Log, Reading.Hour, 7);
Status_IO.Put (Status_Log, Reading.Status,
Width => 8, Set => Lower_Case);
Text_IO.New_Line (Status_Log);
return (True);
exception
when others => return False;
end Record_Status;
begin
-- The usage scenario intended is as follows:
-- File is created.
-- Unrelated/unknown file processing occurs.
-- On six hour intervals, file is reset to Append_File mode.
-- Data is appended to file.
-- Unrelated/unknown file processing resumes.
-- Reset/Append process is repeated.
Reset1:
begin
Text_IO.Reset (Status_Log, -- Reset to
Text_IO.Append_File); -- Append mode.
exception
when Text_IO.Use_Error =>
Report.Not_Applicable
( "Reset to Append_File not supported for Text_IO" );
raise Incomplete;
end Reset1;
Day_IO.Default_Width := Days_In_Week'Width + 5; -- Default values
-- are modifiable.
if not Record_Status (Morning_Reading) then -- Enter data.
Report.Failed ("Exception occurred during data file update");
end if;
Reset2:
begin
Text_IO.Reset (Status_Log, -- Reset to
Text_IO.Append_File); -- Append mode.
exception
when Text_IO.Use_Error =>
Report.Not_Applicable
( "Reset to Append_File not supported for Text_IO" );
raise Incomplete;
end Reset2;
if not Record_Status (Evening_Reading) then -- Enter data.
Report.Failed ("Exception occurred during data file update");
end if;
Test_Verification_Block:
declare
TC_Reading1 : Status_Record_Type;
TC_Reading2 : Status_Record_Type;
begin
Reset3:
begin
Text_IO.Reset (Status_Log, Text_IO.In_File); -- Reset for
-- reading.
exception
when Text_IO.Use_Error =>
Report.Not_Applicable
( "Reset to In_File not supported for Text_IO" );
raise Incomplete;
end Reset3;
Day_IO.Get (Status_Log, TC_Reading1.Day); -- Read data from
Hours_IO.Get (Status_Log, TC_Reading1.Hour); -- first record.
Status_IO.Get (Status_Log, TC_Reading1.Status);
Text_IO.Skip_Line (Status_Log);
-- Verify the data read from the file. Compare with the
-- record that was originally entered into the file.
if (TC_Reading1 /= Morning_Reading) then
Report.Failed ("Data error on reading first record");
end if;
Day_IO.Get (Status_Log, TC_Reading2.Day); -- Read data from
Hours_IO.Get (Status_Log, TC_Reading2.Hour); -- second record.
Status_IO.Get (Status_Log, TC_Reading2.Status);
Text_IO.Skip_Line (Status_Log);
-- Verify all of the data fields read from the file. Compare
-- with the values that were originally entered into the file.
if (TC_Reading2.Day /= Evening_Reading.Day) or
(TC_Reading2.Hour /= Evening_Reading.Hour) or
(TC_Reading2.Status /= Evening_Reading.Status) then
Report.Failed ("Data error on reading second record");
end if;
exception
when Incomplete =>
raise;
when others =>
Report.Failed ("Error raised during data verification");
end Test_Verification_Block;
exception
when Incomplete =>
raise;
when others =>
Report.Failed ("Exception in Text_IO.Enumeration_IO processing");
end Operational_Test_Block;
Final_Block:
begin
-- Delete the external file.
if Text_IO.Is_Open (Status_Log) then
Text_IO.Delete (Status_Log);
else
Text_IO.Open (Status_Log, Text_IO.Out_File, Status_Log_Filename);
Text_IO.Delete (Status_Log);
end if;
exception
when Text_IO.Use_Error =>
Report.Failed
( "Delete not properly implemented for Text_IO" );
end Final_Block;
Report.Result;
exception
when Incomplete =>
Report.Result;
when others =>
Report.Failed ( "Unexpected exception" );
Report.Result;
end CXAA011;
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