-- CXA8002.A
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-- CXA8002.A
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--
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--
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-- Grant of Unlimited Rights
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-- Grant of Unlimited Rights
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--
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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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-- 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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-- 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 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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-- 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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-- 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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-- 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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-- 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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-- 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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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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-- to do so.
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--
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--
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-- DISCLAIMER
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-- DISCLAIMER
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--
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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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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-- 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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-- 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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-- 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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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--*
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--
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--
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-- OBJECTIVE:
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-- OBJECTIVE:
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-- Check that resetting a file using mode Append_File allows for the
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-- Check that resetting a file using mode Append_File allows for the
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-- writing of elements to the file starting after the last element in
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-- writing of elements to the file starting after the last element in
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-- the file.
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-- the file.
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-- Check that the result of function Name can be used on a subsequent
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-- Check that the result of function Name can be used on a subsequent
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-- reopen of the file.
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-- reopen of the file.
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-- Check that a mode change occurs on reset of a file to/from mode
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-- Check that a mode change occurs on reset of a file to/from mode
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-- Append_File.
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-- Append_File.
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--
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--
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-- TEST DESCRIPTION:
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-- TEST DESCRIPTION:
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-- This test simulates the read/write of data from/to an individual
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-- This test simulates the read/write of data from/to an individual
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-- sequential file. New data can be appended to the end of the existing
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-- sequential file. New data can be appended to the end of the existing
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-- file, and the same file can be reset to allow reading of data from
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-- file, and the same file can be reset to allow reading of data from
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-- the file. This process can occur multiple times.
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-- the file. This process can occur multiple times.
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-- When the mode of the file is changed with a Reset, the current mode
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-- When the mode of the file is changed with a Reset, the current mode
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-- value assigned to the file is checked using the result of function
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-- value assigned to the file is checked using the result of function
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-- Mode. This, in conjunction with the read/write operations, verifies
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-- Mode. This, in conjunction with the read/write operations, verifies
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-- that a mode change has taken place on Reset.
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-- that a mode change has taken place on Reset.
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--
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--
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-- An expected common usage of the scenarios found in this test would
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-- An expected common usage of the scenarios found in this test would
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-- be a case where a single data file is kept open continuously, being
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-- be a case where a single data file is kept open continuously, being
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-- reset for read/append of data. For systems that do not support a
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-- reset for read/append of data. For systems that do not support a
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-- direct form of I/O, this would allow for efficient use of a sequential
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-- direct form of I/O, this would allow for efficient use of a sequential
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-- I/O file.
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-- I/O file.
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--
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--
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-- APPLICABILITY CRITERIA:
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-- APPLICABILITY CRITERIA:
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-- Applicable to all systems capable of supporting IO operations on
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-- Applicable to all systems capable of supporting IO operations on
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-- external Sequential_IO files.
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-- external Sequential_IO files.
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--
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--
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--
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--
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-- CHANGE HISTORY:
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-- CHANGE HISTORY:
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-- 06 Dec 94 SAIC ACVC 2.0
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-- 06 Dec 94 SAIC ACVC 2.0
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-- 19 Feb 97 PWB.CTA Fixed handling for file non-support and Reset
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-- 19 Feb 97 PWB.CTA Fixed handling for file non-support and Reset
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-- non-support.
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-- non-support.
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--!
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--!
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with Sequential_IO;
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with Sequential_IO;
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with Report;
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with Report;
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procedure CXA8002 is
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procedure CXA8002 is
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subtype Employee_Data is String (1 .. 11);
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subtype Employee_Data is String (1 .. 11);
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package Data_IO is new Sequential_IO (Employee_Data);
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package Data_IO is new Sequential_IO (Employee_Data);
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Employee_Data_File : Data_IO.File_Type;
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Employee_Data_File : Data_IO.File_Type;
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Employee_Filename : constant String :=
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Employee_Filename : constant String :=
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Report.Legal_File_Name (Nam => "CXA8002");
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Report.Legal_File_Name (Nam => "CXA8002");
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Incomplete : exception;
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Incomplete : exception;
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begin
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begin
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Report.Test ("CXA8002", "Check that resetting a file using mode " &
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Report.Test ("CXA8002", "Check that resetting a file using mode " &
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"Append_File allows for the writing of " &
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"Append_File allows for the writing of " &
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"elements to the file starting after the " &
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"elements to the file starting after the " &
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"last element in the file");
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"last element in the file");
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Test_for_Sequential_IO_Support:
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Test_for_Sequential_IO_Support:
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begin
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begin
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-- An implementation that does not support Sequential_IO in a particular
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-- An implementation that does not support Sequential_IO in a particular
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-- environment will raise Use_Error or Name_Error on calls to various
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-- environment will raise Use_Error or Name_Error on calls to various
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-- Sequential_IO operations. This block statement encloses a call to
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-- Sequential_IO operations. This block statement encloses a call to
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-- Create, which should produce an exception in a non-supportive
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-- Create, which should produce an exception in a non-supportive
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-- environment. These exceptions will be handled to produce a
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-- environment. These exceptions will be handled to produce a
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-- Not_Applicable result.
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-- Not_Applicable result.
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Data_IO.Create (File => Employee_Data_File, -- Create file in
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Data_IO.Create (File => Employee_Data_File, -- Create file in
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Mode => Data_IO.Append_File, -- mode Append_File.
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Mode => Data_IO.Append_File, -- mode Append_File.
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Name => Employee_Filename);
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Name => Employee_Filename);
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--
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--
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-- The following portion of code demonstrates the fact that a sequential
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-- The following portion of code demonstrates the fact that a sequential
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-- file can be created in Append_File mode, and that data can be written
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-- file can be created in Append_File mode, and that data can be written
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-- to the file.
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-- to the file.
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--
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--
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exception
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exception
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when Data_IO.Use_Error | Data_IO.Name_Error =>
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when Data_IO.Use_Error | Data_IO.Name_Error =>
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Report.Not_Applicable
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Report.Not_Applicable
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( "Sequential files not supported - Create as Append_File");
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( "Sequential files not supported - Create as Append_File");
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raise Incomplete;
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raise Incomplete;
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end Test_for_Sequential_IO_Support;
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end Test_for_Sequential_IO_Support;
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Operational_Test_Block:
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Operational_Test_Block:
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declare
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declare
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Blank_Data : constant Employee_Data := " ";
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Blank_Data : constant Employee_Data := " ";
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Employee_1 : constant Employee_Data := "123-45-6789";
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Employee_1 : constant Employee_Data := "123-45-6789";
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Employee_2 : Employee_Data := "987-65-4321";
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Employee_2 : Employee_Data := "987-65-4321";
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-- Note: Artificial numerical data chosen above to prevent any
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-- Note: Artificial numerical data chosen above to prevent any
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-- unintended similarity with persons alive or dead.
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-- unintended similarity with persons alive or dead.
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TC_Employee_Data : Employee_Data := Blank_Data;
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TC_Employee_Data : Employee_Data := Blank_Data;
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function TC_Mode_Selection (Selector : Integer)
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function TC_Mode_Selection (Selector : Integer)
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return Data_IO.File_Mode is
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return Data_IO.File_Mode is
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begin
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begin
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case Report.Ident_Int(Selector) is
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case Report.Ident_Int(Selector) is
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when 1 => return Data_IO.In_File;
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when 1 => return Data_IO.In_File;
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when 2 => return Data_IO.Out_File;
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when 2 => return Data_IO.Out_File;
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when others => return Data_IO.Append_File;
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when others => return Data_IO.Append_File;
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end case;
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end case;
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end TC_Mode_Selection;
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end TC_Mode_Selection;
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Employee_Filename : constant String := -- Use function Name to
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Employee_Filename : constant String := -- Use function Name to
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Data_IO.Name (File => Employee_Data_File); -- store filename in
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Data_IO.Name (File => Employee_Data_File); -- store filename in
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-- string variable.
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-- string variable.
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begin
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begin
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Data_IO.Write (File => Employee_Data_File, -- Write initial data
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Data_IO.Write (File => Employee_Data_File, -- Write initial data
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Item => Employee_1); -- entry to file.
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Item => Employee_1); -- entry to file.
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--
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--
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-- The following portion of code demonstrates that a sequential file
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-- The following portion of code demonstrates that a sequential file
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-- can be reset to various file modes, including Append_File mode,
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-- can be reset to various file modes, including Append_File mode,
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-- allowing data to be added to the end of the file.
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-- allowing data to be added to the end of the file.
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--
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--
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begin
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begin
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Data_IO.Reset (File => Employee_Data_File, -- Reset file with
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Data_IO.Reset (File => Employee_Data_File, -- Reset file with
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Mode => Data_IO.In_File); -- mode In_File.
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Mode => Data_IO.In_File); -- mode In_File.
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exception
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exception
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when Data_IO.Use_Error =>
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when Data_IO.Use_Error =>
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Report.Not_Applicable
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Report.Not_Applicable
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("Reset to In_File not supported for Sequential_IO");
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("Reset to In_File not supported for Sequential_IO");
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raise Incomplete;
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raise Incomplete;
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when others =>
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when others =>
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Report.Failed
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Report.Failed
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("Unexpected exception on Reset to In_File (Sequential_IO)");
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("Unexpected exception on Reset to In_File (Sequential_IO)");
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raise Incomplete;
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raise Incomplete;
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end;
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end;
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if Data_IO."="(Data_IO.Mode (Employee_Data_File),
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if Data_IO."="(Data_IO.Mode (Employee_Data_File),
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TC_Mode_Selection (1)) then -- Compare In_File mode
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TC_Mode_Selection (1)) then -- Compare In_File mode
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-- Reset successful,
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-- Reset successful,
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Data_IO.Read (File => Employee_Data_File, -- now verify file data.
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Data_IO.Read (File => Employee_Data_File, -- now verify file data.
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Item => TC_Employee_Data);
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Item => TC_Employee_Data);
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if ((TC_Employee_Data (1 .. 7) /= "123-45-") or
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if ((TC_Employee_Data (1 .. 7) /= "123-45-") or
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(TC_Employee_Data (5 .. 11) /= "45-6789")) then
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(TC_Employee_Data (5 .. 11) /= "45-6789")) then
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Report.Failed ("Data read error");
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Report.Failed ("Data read error");
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end if;
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end if;
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else
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else
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Report.Failed ("File mode not changed by Reset");
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Report.Failed ("File mode not changed by Reset");
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end if;
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end if;
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--
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--
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-- Simulate appending data to a file that has previously been written
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-- Simulate appending data to a file that has previously been written
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-- to and read from.
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-- to and read from.
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--
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--
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begin
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begin
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Data_IO.Reset (File => Employee_Data_File, -- Reset file with
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Data_IO.Reset (File => Employee_Data_File, -- Reset file with
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Mode => Data_IO.Append_File); -- mode Append_File.
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Mode => Data_IO.Append_File); -- mode Append_File.
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exception
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exception
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when Data_IO.Use_Error =>
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when Data_IO.Use_Error =>
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Report.Not_Applicable
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Report.Not_Applicable
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("Reset to Append_File not supported for Sequential_IO");
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("Reset to Append_File not supported for Sequential_IO");
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raise Incomplete;
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raise Incomplete;
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when others =>
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when others =>
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Report.Failed
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Report.Failed
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("Unexpected exception on Reset to Append_File (Sequential_IO)");
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("Unexpected exception on Reset to Append_File (Sequential_IO)");
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raise Incomplete;
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raise Incomplete;
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end;
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end;
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if Data_IO.Is_Open (Employee_Data_File) then -- File remains open
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if Data_IO.Is_Open (Employee_Data_File) then -- File remains open
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-- following Reset to
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-- following Reset to
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-- Append_File mode?
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-- Append_File mode?
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if Data_IO."=" (Data_IO.Mode (Employee_Data_File),
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if Data_IO."=" (Data_IO.Mode (Employee_Data_File),
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TC_Mode_Selection (3)) then -- Compare to
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TC_Mode_Selection (3)) then -- Compare to
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-- Append_File mode.
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-- Append_File mode.
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Data_IO.Write (File => Employee_Data_File, -- Write additional
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Data_IO.Write (File => Employee_Data_File, -- Write additional
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Item => Employee_2); -- data to file.
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Item => Employee_2); -- data to file.
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else
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else
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Report.Failed ("File mode not changed by Reset");
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Report.Failed ("File mode not changed by Reset");
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end if;
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end if;
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else
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else
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Report.Failed
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Report.Failed
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("File status not Open following Reset to Append mode");
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("File status not Open following Reset to Append mode");
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end if;
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end if;
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Data_IO.Close (Employee_Data_File);
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Data_IO.Close (Employee_Data_File);
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Test_Verification_Block:
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Test_Verification_Block:
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begin
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begin
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Data_IO.Open (File => Employee_Data_File, -- Reopen file, using
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Data_IO.Open (File => Employee_Data_File, -- Reopen file, using
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Mode => Data_IO.In_File, -- previous result of
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Mode => Data_IO.In_File, -- previous result of
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Name => Employee_Filename); -- function Name.
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Name => Employee_Filename); -- function Name.
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TC_Employee_Data := Blank_Data; -- Clear record field.
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TC_Employee_Data := Blank_Data; -- Clear record field.
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Data_IO.Read (Employee_Data_File, -- Read first record,
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Data_IO.Read (Employee_Data_File, -- Read first record,
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TC_Employee_Data); -- check ordering of
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TC_Employee_Data); -- check ordering of
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-- records.
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-- records.
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if not ((TC_Employee_Data (1 .. 3) = "123") and then
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if not ((TC_Employee_Data (1 .. 3) = "123") and then
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(TC_Employee_Data (4 .. 11) = "-45-6789")) then
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(TC_Employee_Data (4 .. 11) = "-45-6789")) then
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Report.Failed ("Data read error - first record");
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Report.Failed ("Data read error - first record");
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end if;
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end if;
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TC_Employee_Data := Blank_Data; -- Clear record field.
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TC_Employee_Data := Blank_Data; -- Clear record field.
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Data_IO.Read (Employee_Data_File, -- Read second record,
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Data_IO.Read (Employee_Data_File, -- Read second record,
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TC_Employee_Data); -- check for ordering of
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TC_Employee_Data); -- check for ordering of
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-- records.
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-- records.
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if ((TC_Employee_Data (1 .. 6) /= "987-65") or else
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if ((TC_Employee_Data (1 .. 6) /= "987-65") or else
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not (TC_Employee_Data (3 .. 11) = "7-65-4321")) then
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not (TC_Employee_Data (3 .. 11) = "7-65-4321")) then
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Report.Failed ("Data read error - second record");
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Report.Failed ("Data read error - second record");
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end if;
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end if;
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-- Check that only two items were written to the file.
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-- Check that only two items were written to the file.
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if not Data_IO.End_Of_File(Employee_Data_File) then
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if not Data_IO.End_Of_File(Employee_Data_File) then
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Report.Failed("Incorrect number of records in file");
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Report.Failed("Incorrect number of records in file");
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end if;
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end if;
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exception
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exception
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when Data_IO.End_Error => -- If two items not in
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when Data_IO.End_Error => -- If two items not in
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-- file (data overwritten),
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-- file (data overwritten),
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-- then fail.
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-- then fail.
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Report.Failed ("Incorrect number of record elements in file");
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Report.Failed ("Incorrect number of record elements in file");
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when others =>
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when others =>
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Report.Failed ("Error raised during data verification");
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Report.Failed ("Error raised during data verification");
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end Test_Verification_Block;
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end Test_Verification_Block;
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exception
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exception
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when others =>
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when others =>
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Report.Failed("Exception raised during Sequential_IO processing");
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Report.Failed("Exception raised during Sequential_IO processing");
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end Operational_Test_Block;
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end Operational_Test_Block;
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Final_Block:
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Final_Block:
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begin
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begin
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-- Check that file is open prior to deleting it.
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-- Check that file is open prior to deleting it.
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if Data_IO.Is_Open(Employee_Data_File) then
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if Data_IO.Is_Open(Employee_Data_File) then
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Data_IO.Delete (Employee_Data_File);
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Data_IO.Delete (Employee_Data_File);
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else
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else
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Data_IO.Open(Employee_Data_File,
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Data_IO.Open(Employee_Data_File,
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Data_IO.In_File,
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Data_IO.In_File,
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Employee_Filename);
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Employee_Filename);
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Data_IO.Delete (Employee_Data_File);
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Data_IO.Delete (Employee_Data_File);
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end if;
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end if;
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exception
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exception
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when others =>
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when others =>
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Report.Failed ("Sequential_IO Delete not properly supported");
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Report.Failed ("Sequential_IO Delete not properly supported");
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end Final_Block;
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end Final_Block;
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Report.Result;
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Report.Result;
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exception
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exception
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when Incomplete =>
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when Incomplete =>
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Report.Result;
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Report.Result;
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when others =>
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when others =>
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Report.Failed ("Unexpected exception");
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Report.Failed ("Unexpected exception");
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Report.Result;
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Report.Result;
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end CXA8002;
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end CXA8002;
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