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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
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tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/ada/acats/tests/cxa/cxaa001.a
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+-- CXAA001.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 Line_Length and Page_Length maximums for a Text_IO
+-- file of mode Append_File are initially zero (unbounded) after a
+-- Create, Open, or Reset, and that these values can be modified using
+-- the procedures Set_Line_Length and Set_Page_Length.
+-- Check that setting the Line_Length and Page_Length attributes to zero
+-- results in an unbounded Text_IO file.
+-- Check that setting the line length when in Append_Mode doesn't
+-- change the length of lines previously written to the Text_IO file.
+--
+-- TEST DESCRIPTION:
+-- This test attempts to simulate a possible text processing environment.
+-- String values, from a number of different string types, are written to
+-- a Text_IO file. Prior to the writing of each, the line length is set
+-- to the particular length of the data being written. In addition, the
+-- default line and page lengths are checked, to determine whether they
+-- are unbounded (length = 0) following a create, reset, or open of a
+-- Text_IO file with mode Append_File.
+--
+-- 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 CXAA001 is
+ use Ada;
+ Data_File : Text_IO.File_Type;
+ Data_Filename : constant String :=
+ Report.Legal_File_Name ( Nam => "CXAA001" );
+ Incomplete : exception;
+begin
+
+ Report.Test ("CXAA001","Check that the Line_Length and Page_Length " &
+ "maximums for a Text_IO file of mode Append_File " &
+ "are initially zero (unbounded) after a Create, " &
+ "Open, or Reset, and that these values can be " &
+ "modified using the procedures Set_Line_Length " &
+ "and Set_Page_Length");
+
+ 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 an 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
+
+ subtype Confidential_Data_Type is string (1 .. 10);
+ subtype Secret_Data_Type is string (1 .. 20);
+ subtype Top_Secret_Data_Type is string (1 .. 30);
+
+ Zero : constant Text_IO.Count := 0;
+ Confidential_Data_Size : constant Text_IO.Count := 10;
+ Secret_Data_Size : constant Text_IO.Count := 20;
+ Top_Secret_Data_Size : constant Text_IO.Count := 30;
+
+ -- The following generic procedure is designed to simulate a text
+ -- processing environment where line and page sizes are set and
+ -- verified prior to the writing of data to a file.
+
+ generic
+ Data_Size : Text_IO.Count;
+ procedure Write_Data_To_File (Data_Item : in String);
+
+ procedure Write_Data_To_File (Data_Item : in String) is
+ use Text_IO; -- Used to provide visibility to the "/=" operator.
+ begin
+ if (Text_IO.Line_Length (Data_File) /= Zero) then -- Check default
+ Report.Failed("Line not of unbounded length"); -- line length,
+ elsif (Text_IO.Page_Length (Data_File) /= Zero) then -- default
+ Report.Failed ("Page not of unbounded length"); -- page length.
+ end if;
+
+ Text_IO.Set_Line_Length (File => Data_File, -- Set the line
+ To => Data_Size); -- length.
+ Text_IO.Set_Page_Length (File => Data_File, -- Set the page
+ To => Data_Size); -- length.
+ -- Verify the lengths set.
+ if (Integer(Text_IO.Line_Length (Data_File)) /=
+ Report.Ident_Int(Integer(Data_Size))) then
+ Report.Failed ("Line length not set to appropriate length");
+ elsif (Integer(Text_IO.Page_Length (Data_File)) /=
+ Report.Ident_Int(Integer(Data_Size))) then
+ Report.Failed ("Page length not set to appropriate length");
+ end if;
+
+ Text_IO.Put_Line (File => Data_File, -- Write data to
+ Item => Data_Item); -- file.
+
+ end Write_Data_To_File;
+
+ -- Instantiation for the three data types/sizes.
+
+ procedure Write_Confidential_Data is
+ new Write_Data_To_File (Data_Size => Confidential_Data_Size);
+
+ procedure Write_Secret_Data is
+ new Write_Data_To_File (Data_Size => Secret_Data_Size);
+
+ procedure Write_Top_Secret_Data is
+ new Write_Data_To_File (Data_Size => Top_Secret_Data_Size);
+
+ Confidential_Item : Confidential_Data_Type := "Confidenti";
+ Secret_Item : Secret_Data_Type := "Secret Data Values ";
+ Top_Secret_Item : Top_Secret_Data_Type :=
+ "Extremely Top Secret Data ";
+
+ begin
+
+ -- The following call simulates processing occurring after the create
+ -- of a Text_IO file with mode Append_File.
+
+ Write_Confidential_Data (Confidential_Item);
+
+ -- The following call simulates processing occurring after the reset
+ -- of a Text_IO file with mode Append_File.
+
+ Reset1:
+ begin
+ Text_IO.Reset (Data_File, Text_IO.Append_File); -- Reset to
+ -- Append_File mode.
+ exception
+ when Text_IO.Use_Error =>
+ Report.Not_Applicable
+ ( "Reset to Append_File not supported for Text_IO" );
+ raise Incomplete;
+ end Reset1;
+
+ Write_Secret_Data (Data_Item => Secret_Item);
+
+ Text_IO.Close (Data_File); -- Close file.
+
+ -- The following processing simulates processing occurring after the
+ -- opening of an existing file with mode Append_File.
+
+ Text_IO.Open (Data_File, -- Open file in
+ Text_IO.Append_File, -- Append_File mode.
+ Data_Filename);
+
+ Write_Top_Secret_Data (Top_Secret_Item);
+
+ Test_Verification_Block:
+ declare
+ TC_String1,
+ TC_String2,
+ TC_String3 : String (1..80) := (others => ' ');
+ TC_Length1,
+ TC_Length2,
+ TC_Length3 : Natural := 0;
+ begin
+
+ Reset2:
+ begin
+ Text_IO.Reset (Data_File, 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 Reset2;
+
+ Text_IO.Get_Line (Data_File, TC_String1, TC_Length1);
+ Text_IO.Get_Line (Data_File, TC_String2, TC_Length2);
+ Text_IO.Get_Line (Data_File, TC_String3, TC_Length3);
+
+ -- Verify that the line lengths of each line were accurate.
+ -- Note: Each data line was written to the file after the
+ -- particular line length had been set (to the data length).
+
+ if not ((TC_Length1 = Natural(Confidential_Data_Size)) and
+ (TC_Length2 = Natural(Secret_Data_Size)) and
+ (TC_Length3 = Natural(Top_Secret_Data_Size))) then
+ Report.Failed ("Inaccurate line lengths read from file");
+ end if;
+
+ -- Verify that the data read from the file are accurate.
+
+ if (TC_String1(1..TC_Length1) /= Confidential_Item) or else
+ (TC_String2(1..TC_Length2) /= Secret_Item) or else
+ (TC_String3(1..TC_Length3) /= Top_Secret_Item) then
+ Report.Failed ("Corrupted data items read from file");
+ 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
+ -- Check that the file is open prior to deleting it.
+ 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 CXAA001;