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|
-- CXAA004.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
-- perform properly on a text file opened with mode Append_File.
-- Check that the attributes Page, Line, and Column are all set to 1
-- following the opening of a text file with mode Append_File.
-- Check that the functions Page, Line, and Col perform properly on a
-- text file opened with mode Append_File.
-- Check that the procedures Put and Put_Line perform properly on text
-- files opened 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 opened 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 reset 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 Out_File mode,
-- and then reset to 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
-- 24 Feb 97 PWB.CTA Allowed for non-support of some IO operations.
--!
with Ada.Text_IO;
with Report;
procedure CXAA004 is
use Ada;
Data_File : Text_IO.File_Type;
Data_Filename : constant String :=
Report.Legal_File_Name ( Nam => "CXAA004" );
Incomplete : exception;
begin
Report.Test ("CXAA004", "Check that page, line, and column formatting " &
"subprograms perform properly on text files " &
"opened 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.Out_File,
Name => Data_Filename);
exception
when Text_IO.Use_Error | Text_IO.Name_Error =>
Report.Not_Applicable
( "Files not supported - Create for Text_IO" );
raise Incomplete;
end Test_for_Text_IO_Support;
Operational_Test_Block:
declare
use Text_IO; -- To provide visibility to the "/=" operator.
Default_Position : constant Text_IO.Positive_Count := 1;
Section_Header : constant String := "X. ";
Reference_Title : constant String := "REFERENCES";
Reference_Content : constant String := "Available Upon Request";
begin
-- Some amount of text processing would occur here in the scenario
-- following file creation, prior to file closure.
Text_IO.Put_Line (File => Data_File, Item => "Some optional data");
-- Close has the effect of a call to New_Page (adding a page
-- terminator).
Text_IO.Close (Data_File);
-- This code section simulates a scenario that could occur in a
-- text processing environment:
-- Certain text is to be appended to a document.
-- The file is opened in Append_File mode.
-- The position on the appended page is set, verified, and text
-- is placed in the file.
--
-- Note: The text file has been originally created in Out_File
-- mode, has been subsequently closed and is now being reopened in
-- Append_File mode for further processing.
Text_IO.Open (Data_File, Text_IO.Append_File, Data_Filename);
-- Test control code.
if (Text_IO.Page(Data_File) /= Default_Position) then -- Verify init.
Report.Failed ("Incorrect default page number"); -- page value.
end if;
if (Text_IO.Line(Data_File) /= Default_Position) then -- Verify init.
Report.Failed ("Incorrect default line number"); -- line number.
end if;
if (Text_IO.Col (Data_File) /= Default_Position) then -- Verify init.
Report.Failed ("Incorrect default column number"); -- column no.
end if;
-- Simulated usage code.
Text_IO.New_Page (Data_File); -- Set new page/
Text_IO.New_Line (File => Data_File, Spacing => 2); -- line pos.
Text_IO.Put (Data_File, Section_Header); -- Position
Text_IO.Put_Line (Data_File, Reference_Title); -- title.
-- Test control code. -- Verify new
if (Integer(Text_IO.Page (Data_File)) /= -- page and
Report.Ident_Int(2)) or else -- line.
(Integer(Text_IO.Line (Data_File)) /=
Report.Ident_Int(4)) then
Report.Failed ("Incorrect results from page/line positioning");
end if;
-- Simulated usage code.
Text_IO.Set_Line (File => Data_File, To => 8); -- Set new
Text_IO.Set_Col (File => Data_File, To => 30); -- position.
Text_IO.Put_Line (Data_File, Reference_Content);
-- Test control code.
if (Integer(Text_IO.Line (Data_File)) /=
Report.Ident_Int(9)) or -- Verify new
(Integer(Text_IO.Col (Data_File)) /= -- position.
Report.Ident_Int(1)) then
Report.Failed ("Incorrect results from line/column positioning");
end if;
Test_Verification_Block:
declare
TC_Page, TC_Line, TC_Column : Text_IO.Positive_Count;
TC_Position : Natural := 0;
TC_String : String (1 .. 55) := (others => ' ');
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);
-- If the Reset to Append_File mode actually put a page terminator
-- in the file, as allowed (but not required) by RM A.10.2(4), then
-- we are now on page 2, an empty page. Therefore, we need to skip
-- one more page.
if Text_IO.End_Of_Page (Data_File) then
Text_IO.Skip_Page (Data_File);
end if;
-- Now we're on the reference page.
-- 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 /= 14) or else -- Verify the title line.
(TC_String (1..6) /= "X. RE") or else
(TC_String (2..14) /= (". " & Reference_Title)) then
Report.Failed ("Incorrect positioning of title line");
end if;
-- Loop to the eighth line
for I in 4 .. 8 loop -- and read the contents.
Text_IO.Get_Line (Data_File, TC_String, TC_Position);
end loop;
if (TC_Position /= 51) or -- Verify the contents.
(TC_String (30..51) /= "Available Upon Request") 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;
Final_Block:
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 - Text_IO" );
end Final_Block;
Report.Result;
exception
when Incomplete =>
Report.Result;
when others =>
Report.Failed ("Unexpected exception");
Report.Result;
end CXAA004;
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