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jeremybenn |
-- CXAA004.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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-- perform properly on a text file opened with mode 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 opening 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 opened 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 opened 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 opened 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 reset 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 Out_File mode,
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-- and then reset to Append_File mode.
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-- Various 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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-- 24 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 CXAA004 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 => "CXAA004" );
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Incomplete : exception;
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begin
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Report.Test ("CXAA004", "Check that page, line, and column formatting " &
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"subprograms perform properly on text files " &
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"opened 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.Out_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 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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use Text_IO; -- To provide visibility to the "/=" operator.
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Default_Position : constant Text_IO.Positive_Count := 1;
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Section_Header : constant String := "X. ";
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Reference_Title : constant String := "REFERENCES";
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Reference_Content : constant String := "Available Upon Request";
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begin
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-- Some amount of text processing would occur here in the scenario
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-- following file creation, prior to file closure.
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Text_IO.Put_Line (File => Data_File, Item => "Some optional data");
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-- Close has the effect of a call to New_Page (adding a page
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-- terminator).
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Text_IO.Close (Data_File);
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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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-- Certain text is to be appended to a document.
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-- The file is opened in Append_File mode.
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-- The position on the appended page is set, verified, and text
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-- is placed in the file.
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--
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-- Note: The text file has been originally created in Out_File
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-- mode, has been subsequently closed and is now being reopened in
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-- Append_File mode for further processing.
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Text_IO.Open (Data_File, Text_IO.Append_File, Data_Filename);
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-- Test control code.
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if (Text_IO.Page(Data_File) /= Default_Position) then -- Verify init.
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Report.Failed ("Incorrect default page number"); -- page value.
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end if;
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if (Text_IO.Line(Data_File) /= Default_Position) then -- Verify init.
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Report.Failed ("Incorrect default line number"); -- line number.
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end if;
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if (Text_IO.Col (Data_File) /= Default_Position) then -- Verify init.
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Report.Failed ("Incorrect default column number"); -- column no.
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end if;
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-- Simulated usage code.
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Text_IO.New_Page (Data_File); -- Set new page/
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Text_IO.New_Line (File => Data_File, Spacing => 2); -- line pos.
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Text_IO.Put (Data_File, Section_Header); -- Position
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Text_IO.Put_Line (Data_File, Reference_Title); -- title.
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-- Test control code. -- Verify new
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if (Integer(Text_IO.Page (Data_File)) /= -- page and
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Report.Ident_Int(2)) or else -- line.
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(Integer(Text_IO.Line (Data_File)) /=
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Report.Ident_Int(4)) 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.Set_Line (File => Data_File, To => 8); -- Set new
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Text_IO.Set_Col (File => Data_File, To => 30); -- position.
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Text_IO.Put_Line (Data_File, Reference_Content);
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-- Test control code.
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if (Integer(Text_IO.Line (Data_File)) /=
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Report.Ident_Int(9)) or -- Verify new
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(Integer(Text_IO.Col (Data_File)) /= -- position.
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Report.Ident_Int(1)) then
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Report.Failed ("Incorrect results from line/column positioning");
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end if;
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Test_Verification_Block:
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declare
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TC_Page, TC_Line, TC_Column : Text_IO.Positive_Count;
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TC_Position : Natural := 0;
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TC_String : String (1 .. 55) := (others => ' ');
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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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-- If the Reset to Append_File mode actually put a page terminator
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-- in the file, as allowed (but not required) by RM A.10.2(4), then
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-- we are now on page 2, an empty page. Therefore, we need to skip
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-- one more page.
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if Text_IO.End_Of_Page (Data_File) then
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Text_IO.Skip_Page (Data_File);
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end if;
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-- Now we're on the reference page.
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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 /= 14) or else -- Verify the title line.
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(TC_String (1..6) /= "X. RE") or else
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(TC_String (2..14) /= (". " & Reference_Title)) then
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Report.Failed ("Incorrect positioning of title line");
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end if;
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-- Loop to the eighth line
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for I in 4 .. 8 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 /= 51) or -- Verify the contents.
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(TC_String (30..51) /= "Available Upon Request") 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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Final_Block:
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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 ( "Delete not properly implemented - Text_IO" );
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end Final_Block;
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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 CXAA004;
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