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jeremybenn |
-- CXAA002.A
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--
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-- Grant of Unlimited Rights
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--
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- unlimited rights in the software and documentation contained herein.
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- this public release, the Government intends to confer upon all
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-- recipients unlimited rights equal to those held by the Government.
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-- These rights include rights to use, duplicate, release or disclose the
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-- released technical data and computer software in whole or in part, in
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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--
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-- DISCLAIMER
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--
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-- OBJECTIVE:
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-- Check that the procedures New_Page, Set_Line, Set_Col, and New_Line
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-- subprograms perform properly on a text file created with mode
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-- Append_File.
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-- Check that the attributes Page, Line, and Column are all set to 1
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-- following the creation of a text file with mode Append_File.
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-- Check that the functions Page, Line, and Col perform properly on a
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-- text file created with mode Append_File.
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-- Check that the procedures Put and Put_Line perform properly on text
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-- files created with mode Append_File.
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-- Check that the procedure Set_Line sets the current line number to
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-- the value specified by the parameter "To" for text files created with
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-- mode Append_File.
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-- Check that the procedure Set_Col sets the current column number to
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-- the value specified by the parameter "To" for text files created with
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-- mode Append_File.
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--
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-- TEST DESCRIPTION:
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-- This test is designed to simulate the text processing that could
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-- occur with files that have been created in Append_File mode. Various
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-- calls to Text_IO formatting subprograms are called to properly
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-- position text appended to a document. The text content and position
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-- are subsequently verified for accuracy.
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--
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-- APPLICABILITY CRITERIA:
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-- This test is applicable only to implementations that support text
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-- files.
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--
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--
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-- CHANGE HISTORY:
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-- 06 Dec 94 SAIC ACVC 2.0
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-- 27 Feb 97 PWB.CTA Allowed for non-support of some IO operations
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--!
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with Ada.Text_IO;
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with Report;
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procedure CXAA002 is
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use Ada;
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Data_File : Text_IO.File_Type;
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Data_Filename : constant String :=
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Report.Legal_File_Name ( Nam => "CXAA002" );
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Incomplete : exception;
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begin
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Report.Test ("CXAA002", "Check that page, line, and column formatting " &
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"subprograms perform properly on text files " &
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"created with mode Append_File");
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Test_for_Text_IO_Support:
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begin
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-- An implementation that does not support Text_IO in a particular
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-- environment will raise Use_Error on calls to various
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-- Text_IO operations. This block statement encloses a call to
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-- Create, which should raise the exception in a non-supportive
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-- environment. This exception will be handled to produce a
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-- Not_Applicable result.
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Text_IO.Create (File => Data_File,
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Mode => Text_IO.Append_File,
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Name => Data_Filename);
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exception
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when Text_IO.Use_Error | Text_IO.Name_Error =>
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Report.Not_Applicable
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( "Files not supported - Create as Append_File for Text_IO" );
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raise Incomplete;
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end Test_for_Text_IO_Support;
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Operational_Test_Block:
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declare
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Default_Position : constant Text_IO.Positive_Count := 1;
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Section_Header : constant String := "VII. ";
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Appendix_Title : constant String := "Appendix A";
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Appendix_Content : constant String := "TBD";
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-- The following procedure simulates the addition of an Appendix page
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-- to an existing text file.
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procedure Position_Appendix_Text is
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use Text_IO; -- To provide visibility to the "/=" operator.
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begin
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-- Test control code.
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-- Verify initial page, line, column number.
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if "/="(Text_IO.Page (Data_File), Default_Position) then
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Report.Failed ("Incorrect default page number");
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end if;
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if Text_IO.Line (Data_File) /= Default_Position then
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Report.Failed ("Incorrect default line number");
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end if;
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if "/="(Text_IO.Col (Data_File), Default_Position) then
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Report.Failed ("Incorrect default column number");
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end if;
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-- Simulated usage code.
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-- Set new page/line positions.
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Text_IO.Put_Line
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(Data_File, "Add some optional data to the file here");
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Text_IO.New_Page (Data_File);
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Text_IO.New_Line (File => Data_File, Spacing => 2);
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-- Test control code.
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if Integer(Text_IO.Page (Data_File)) /= Report.Ident_Int(2) or else
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Integer(Text_IO.Line (Data_File)) /= Report.Ident_Int(3) then
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Report.Failed ("Incorrect results from page/line positioning");
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end if;
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-- Simulated usage code.
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Text_IO.Put (Data_File, Section_Header); -- Position title
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Text_IO.Put_Line (Data_File, Appendix_Title); -- of Appendix.
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Text_IO.Set_Line (File => Data_File, To => 5); -- Set new
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Text_IO.Set_Col (File => Data_File, To => 8); -- position.
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-- Test control code.
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if (Integer(Text_IO.Line (Data_File)) /= Report.Ident_Int(5)) or
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(Integer(Text_IO.Col (Data_File)) /= Report.Ident_Int(8)) then
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Report.Failed ("Incorrect results from line/column positioning");
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end if;
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-- Simulated usage code. -- Position
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Text_IO.Put_Line (Data_File, Appendix_Content); -- content of
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-- Appendix.
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end Position_Appendix_Text;
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begin
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-- This code section simulates a scenario that could occur in a
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-- text processing environment:
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-- A document is created/modified/edited Then...
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-- Text is to be appended to the document.
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-- A procedure is called to perform that operation.
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-- The position on the appended page is set, verified, and text is
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-- appended to the existing file.
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--
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-- Note: The text file has been originally created in Append_File
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-- mode, and has not been closed prior to this processing.
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Position_Appendix_Text;
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Test_Verification_Block:
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declare
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TC_Page,
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TC_Line,
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TC_Column : Text_IO.Positive_Count;
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TC_Position : Natural := 0;
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Blanks : constant String := " ";
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TC_String : String (1 .. 17) := Blanks;
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begin
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Reset1:
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begin
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Text_IO.Reset (Data_File, Text_IO.In_File);
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exception
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when Text_IO.Use_Error =>
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Report.Not_Applicable
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( "Reset to In_File not supported for Text_IO" );
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raise Incomplete;
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end Reset1;
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Text_IO.Skip_Page (Data_File);
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-- Loop to the third line
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for I in 1 .. 3 loop -- and read the contents.
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Text_IO.Get_Line (Data_File, TC_String, TC_Position);
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end loop;
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if (TC_Position /= 16) or else -- Verify the title line.
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(TC_String (1..4) /= "VII.") or else
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(TC_String (3..16) /= ("I. " & Appendix_Title)) then
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Report.Failed ("Incorrect positioning of title line");
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end if;
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TC_String := Blanks; -- Clear string.
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-- Loop to the fifth line
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for I in 4 .. 5 loop -- and read the contents.
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Text_IO.Get_Line (Data_File, TC_String, TC_Position);
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end loop;
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if (TC_Position /= 10) or -- Verify the contents.
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(TC_String (8..10) /= Appendix_Content) then
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Report.Failed ("Incorrect positioning of contents line");
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end if;
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exception
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when Incomplete =>
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raise;
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when others =>
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Report.Failed ("Error raised during data verification");
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end Test_Verification_Block;
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exception
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when Incomplete =>
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raise;
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when others =>
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Report.Failed ("Exception raised during Text_IO processing");
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end Operational_Test_Block;
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Deletion:
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begin
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-- Delete the external file.
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if Text_IO.Is_Open(Data_File) then
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Text_IO.Delete(Data_File);
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else
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Text_IO.Open(Data_File, Text_IO.In_File, Data_Filename);
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Text_IO.Delete(Data_File);
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end if;
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exception
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when others =>
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Report.Failed
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( "Delete not properly implemented for Text_IO" );
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end Deletion;
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Report.Result;
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exception
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when Incomplete =>
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Report.Result;
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when others =>
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Report.Failed ( "Unexpected exception" );
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Report.Result;
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end CXAA002;
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