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|
-- CXAA002.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 procedures New_Page, Set_Line, Set_Col, and New_Line
-- subprograms perform properly on a text file created with mode
-- Append_File.
-- Check that the attributes Page, Line, and Column are all set to 1
-- following the creation of a text file with mode Append_File.
-- Check that the functions Page, Line, and Col perform properly on a
-- text file created with mode Append_File.
-- Check that the procedures Put and Put_Line perform properly on text
-- files created with mode Append_File.
-- Check that the procedure Set_Line sets the current line number to
-- the value specified by the parameter "To" for text files created with
-- mode Append_File.
-- Check that the procedure Set_Col sets the current column number to
-- the value specified by the parameter "To" for text files created with
-- mode Append_File.
--
-- TEST DESCRIPTION:
-- This test is designed to simulate the text processing that could
-- occur with files that have been created in Append_File mode. Various
-- calls to Text_IO formatting subprograms are called to properly
-- position text appended to a document. The text content and position
-- are subsequently verified for accuracy.
--
-- APPLICABILITY CRITERIA:
-- This test is applicable only to implementations that support text
-- files.
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
-- 27 Feb 97 PWB.CTA Allowed for non-support of some IO operations
--!
with Ada.Text_IO;
with Report;
procedure CXAA002 is
use Ada;
Data_File : Text_IO.File_Type;
Data_Filename : constant String :=
Report.Legal_File_Name ( Nam => "CXAA002" );
Incomplete : exception;
begin
Report.Test ("CXAA002", "Check that page, line, and column formatting " &
"subprograms perform properly on text files " &
"created 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 => Data_File,
Mode => Text_IO.Append_File,
Name => Data_Filename);
exception
when Text_IO.Use_Error | Text_IO.Name_Error =>
Report.Not_Applicable
( "Files not supported - Create as Append_File for Text_IO" );
raise Incomplete;
end Test_for_Text_IO_Support;
Operational_Test_Block:
declare
Default_Position : constant Text_IO.Positive_Count := 1;
Section_Header : constant String := "VII. ";
Appendix_Title : constant String := "Appendix A";
Appendix_Content : constant String := "TBD";
-- The following procedure simulates the addition of an Appendix page
-- to an existing text file.
procedure Position_Appendix_Text is
use Text_IO; -- To provide visibility to the "/=" operator.
begin
-- Test control code.
-- Verify initial page, line, column number.
if "/="(Text_IO.Page (Data_File), Default_Position) then
Report.Failed ("Incorrect default page number");
end if;
if Text_IO.Line (Data_File) /= Default_Position then
Report.Failed ("Incorrect default line number");
end if;
if "/="(Text_IO.Col (Data_File), Default_Position) then
Report.Failed ("Incorrect default column number");
end if;
-- Simulated usage code.
-- Set new page/line positions.
Text_IO.Put_Line
(Data_File, "Add some optional data to the file here");
Text_IO.New_Page (Data_File);
Text_IO.New_Line (File => Data_File, Spacing => 2);
-- Test control code.
if Integer(Text_IO.Page (Data_File)) /= Report.Ident_Int(2) or else
Integer(Text_IO.Line (Data_File)) /= Report.Ident_Int(3) then
Report.Failed ("Incorrect results from page/line positioning");
end if;
-- Simulated usage code.
Text_IO.Put (Data_File, Section_Header); -- Position title
Text_IO.Put_Line (Data_File, Appendix_Title); -- of Appendix.
Text_IO.Set_Line (File => Data_File, To => 5); -- Set new
Text_IO.Set_Col (File => Data_File, To => 8); -- position.
-- Test control code.
if (Integer(Text_IO.Line (Data_File)) /= Report.Ident_Int(5)) or
(Integer(Text_IO.Col (Data_File)) /= Report.Ident_Int(8)) then
Report.Failed ("Incorrect results from line/column positioning");
end if;
-- Simulated usage code. -- Position
Text_IO.Put_Line (Data_File, Appendix_Content); -- content of
-- Appendix.
end Position_Appendix_Text;
begin
-- This code section simulates a scenario that could occur in a
-- text processing environment:
-- A document is created/modified/edited Then...
-- Text is to be appended to the document.
-- A procedure is called to perform that operation.
-- The position on the appended page is set, verified, and text is
-- appended to the existing file.
--
-- Note: The text file has been originally created in Append_File
-- mode, and has not been closed prior to this processing.
Position_Appendix_Text;
Test_Verification_Block:
declare
TC_Page,
TC_Line,
TC_Column : Text_IO.Positive_Count;
TC_Position : Natural := 0;
Blanks : constant String := " ";
TC_String : String (1 .. 17) := Blanks;
begin
Reset1:
begin
Text_IO.Reset (Data_File, Text_IO.In_File);
exception
when Text_IO.Use_Error =>
Report.Not_Applicable
( "Reset to In_File not supported for Text_IO" );
raise Incomplete;
end Reset1;
Text_IO.Skip_Page (Data_File);
-- Loop to the third line
for I in 1 .. 3 loop -- and read the contents.
Text_IO.Get_Line (Data_File, TC_String, TC_Position);
end loop;
if (TC_Position /= 16) or else -- Verify the title line.
(TC_String (1..4) /= "VII.") or else
(TC_String (3..16) /= ("I. " & Appendix_Title)) then
Report.Failed ("Incorrect positioning of title line");
end if;
TC_String := Blanks; -- Clear string.
-- Loop to the fifth line
for I in 4 .. 5 loop -- and read the contents.
Text_IO.Get_Line (Data_File, TC_String, TC_Position);
end loop;
if (TC_Position /= 10) or -- Verify the contents.
(TC_String (8..10) /= Appendix_Content) then
Report.Failed ("Incorrect positioning of contents line");
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 raised during Text_IO processing");
end Operational_Test_Block;
Deletion:
begin
-- Delete the external file.
if Text_IO.Is_Open(Data_File) then
Text_IO.Delete(Data_File);
else
Text_IO.Open(Data_File, Text_IO.In_File, Data_Filename);
Text_IO.Delete(Data_File);
end if;
exception
when others =>
Report.Failed
( "Delete not properly implemented for Text_IO" );
end Deletion;
Report.Result;
exception
when Incomplete =>
Report.Result;
when others =>
Report.Failed ( "Unexpected exception" );
Report.Result;
end CXAA002;
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