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-- CXACA01.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 default attributes 'Write and 'Read work properly when
-- used with objects of a variety of types, including records with
-- default discriminants, records without default discriminants, but
-- which have the discriminant described in a representation clause for
-- the type, and arrays.
--
-- TEST DESCRIPTION:
-- This test simulates a basic sales record system, using Stream_IO to
-- allow the storage of heterogeneous data in a single stream file.
--
-- Four types of data are written to the stream file for each product.
-- First, the "header" information on the product is written.
-- This is an object of a discriminated (with default) record
-- type. This is followed by an integer object containing a count of
-- the number of sales data records to follow. The corresponding number
-- of sales records follow in the stream. These are of a record type
-- with a discriminant without a default, but where the discriminant is
-- included in the representation clause for the type. Finally, an
-- array object with statistical sales information for the product is
-- written to the stream.
--
-- Objects of both record types specified below (discriminated records
-- with defaults, and discriminated records w/o defaults that have the
-- discriminant included in a representation clause for the type) should
-- have their discriminants included in the stream when using 'Write.
-- Likewise, discriminants should be extracted from the stream when
-- using 'Read.
--
-- APPLICABILITY CRITERIA:
-- Applicable to all implementations that support external
-- Stream_IO files.
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
--
--!
with FXACA00;
with Ada.Streams.Stream_IO;
with Report;
procedure CXACA01 is
begin
Report.Test ("CXACA01", "Check that 'Write and 'Read work properly " &
"when used with complex data types");
Test_for_Stream_IO_Support:
declare
Info_File : Ada.Streams.Stream_IO.File_Type;
Info_Stream : Ada.Streams.Stream_IO.Stream_Access;
The_Filename : constant String := Report.Legal_File_Name;
begin
-- If an implementation does not support Stream_IO in a particular
-- environment, the exception Use_Error or Name_Error will be raised on
-- calls to various Stream_IO operations. This block statement
-- encloses a call to Create, which should produce an exception in a
-- non-supportive environment. These exceptions will be handled to
-- produce a Not_Applicable result.
Ada.Streams.Stream_IO.Create (Info_File,
Ada.Streams.Stream_IO.Out_File,
The_Filename);
Operational_Test_Block:
declare
begin
Info_Stream := Ada.Streams.Stream_IO.Stream (Info_File);
-- Write all of the product information (record, integer, and array
-- objects) defined in package FXACA00 into the stream.
Store_Data_Block:
begin
-- Write information about first product to the stream.
FXACA00.Product_Type'Write (Info_Stream, FXACA00.Product_01);
Integer'Write (Info_Stream, FXACA00.Sale_Count_01);
FXACA00.Sales_Record_Type'Write(Info_Stream, FXACA00.Sale_Rec_01);
FXACA00.Sales_Record_Type'Write(Info_Stream, FXACA00.Sale_Rec_02);
FXACA00.Sales_Statistics_Type'Write
(Info_Stream, FXACA00.Product_01_Stats);
-- Write information about second product to the stream.
-- Note: No Sales_Record_Type objects.
FXACA00.Product_Type'Write (Info_Stream, FXACA00.Product_02);
Integer'Write (Info_Stream, FXACA00.Sale_Count_02);
FXACA00.Sales_Statistics_Type'Write
(Info_Stream, FXACA00.Product_02_Stats);
-- Write information about third product to the stream.
FXACA00.Product_Type'Write (Info_Stream, FXACA00.Product_03);
Integer'Write (Info_Stream, FXACA00.Sale_Count_03);
FXACA00.Sales_Record_Type'Write(Info_Stream, FXACA00.Sale_Rec_03);
FXACA00.Sales_Record_Type'Write(Info_Stream, FXACA00.Sale_Rec_04);
FXACA00.Sales_Record_Type'Write(Info_Stream, FXACA00.Sale_Rec_05);
FXACA00.Sales_Statistics_Type'Write
(Info_Stream, FXACA00.Product_03_Stats);
end Store_Data_Block;
Verify_Data_Block:
declare
use FXACA00; -- Used within this block only.
type Domestic_Rec_Array_Type is
array (Positive range <>) of Sales_Record_Type (Domestic);
type Foreign_Rec_Array_Type is
array (Positive range <>) of Sales_Record_Type (Foreign);
TC_Rec1 : Domestic_Rec_Array_Type (1..2);
TC_Rec3 : Foreign_Rec_Array_Type (1..3);
TC_Product1 : Product_Type;
TC_Product2,
TC_Product3 : Product_Type (Foreign);
TC_Count1,
TC_Count2,
TC_Count3 : Integer := -10; -- Initialized to dummy value.
TC_Stat1,
TC_Stat2,
TC_Stat3 : Sales_Statistics_Type := (others => 500);
begin
Ada.Streams.Stream_IO.Reset (Info_File,
Ada.Streams.Stream_IO.In_File);
-- Read all of the data that is contained in the stream.
-- Compare all data with the original data in package FXACA00
-- that was written to the stream.
-- The calls to the read attribute are in anticipated order, based
-- on the order of data written to the stream. Possible errors,
-- such as data placement, overwriting, etc., will be manifest as
-- exceptions raised by the attribute during an unsuccessful read
-- attempt.
-- Extract data on first product.
Product_Type'Read (Info_Stream, TC_Product1);
Integer'Read (Info_Stream, TC_Count1);
-- Two "domestic" variant sales records will be read from the
-- stream.
for i in 1 .. TC_Count1 loop
Sales_Record_Type'Read (Info_Stream, TC_Rec1(i) );
end loop;
Sales_Statistics_Type'Read (Info_Stream, TC_Stat1);
-- Extract data on second product.
Product_Type'Read (Info_Stream, TC_Product2);
Integer'Read (Info_Stream, TC_Count2);
Sales_Statistics_Type'Read (Info_Stream, TC_Stat2);
-- Extract data on third product.
Product_Type'Read (Info_Stream, TC_Product3);
Integer'Read (Info_Stream, TC_Count3);
-- Three "foreign" variant sales records will be read from the
-- stream.
for i in 1 .. TC_Count3 loop
Sales_Record_Type'Read (Info_Stream, TC_Rec3(i) );
end loop;
Sales_Statistics_Type'Read (Info_Stream, TC_Stat3);
-- After all the data has been correctly extracted, the file
-- should be empty.
if not Ada.Streams.Stream_IO.End_Of_File (Info_File) then
Report.Failed ("Stream file not empty");
end if;
-- Verify that the data values read from the stream are the same
-- as those written to the stream.
-- Verify the information of the first product.
if ((Product_01 /= TC_Product1) or else
(Product_01.Manufacture /= TC_Product1.Manufacture) or else
(Sale_Count_01 /= TC_Count1) or else
(Sale_Rec_01 /= TC_Rec1(1)) or else
(Sale_Rec_01.Buyer /= TC_Rec1(1).Buyer) or else
(Sale_Rec_02 /= TC_Rec1(2)) or else
(Sale_Rec_02.Buyer /= TC_Rec1(2).Buyer) or else
(Product_01_Stats /= TC_Stat1))
then
Report.Failed ("Product 1 information incorrect");
end if;
-- Verify the information of the second product.
if not ((Product_02 = TC_Product2) and then
(Sale_Count_02 = TC_Count2) and then
(Product_02_Stats = TC_Stat2))
then
Report.Failed ("Product 2 information incorrect");
end if;
-- Verify the information of the third product.
if ((Product_03 /= TC_Product3) or else
(Product_03.Manufacture /= TC_Product3.Manufacture) or else
(Sale_Count_03 /= TC_Count3) or else
(Sale_Rec_03 /= TC_Rec3(1)) or else
(Sale_Rec_03.Buyer /= TC_Rec3(1).Buyer) or else
(Sale_Rec_04 /= TC_Rec3(2)) or else
(Sale_Rec_04.Buyer /= TC_Rec3(2).Buyer) or else
(Sale_Rec_05 /= TC_Rec3(3)) or else
(Sale_Rec_05.Buyer /= TC_Rec3(3).Buyer) or else
(Product_03_Stats /= TC_Stat3))
then
Report.Failed ("Product 3 information incorrect");
end if;
end Verify_Data_Block;
exception
when others =>
Report.Failed ("Exception raised in Operational Test Block");
end Operational_Test_Block;
if Ada.Streams.Stream_IO.Is_Open (Info_File) then
Ada.Streams.Stream_IO.Delete (Info_File);
else
Ada.Streams.Stream_IO.Open (Info_File,
Ada.Streams.Stream_IO.In_File,
The_Filename);
Ada.Streams.Stream_IO.Delete (Info_File);
end if;
exception
-- Since Use_Error or Name_Error can be raised if, for the specified
-- mode, the environment does not support Stream_IO operations,
-- the following handlers are included:
when Ada.Streams.Stream_IO.Name_Error =>
Report.Not_Applicable ("Name_Error raised on Stream IO Create");
when Ada.Streams.Stream_IO.Use_Error =>
Report.Not_Applicable ("Use_Error raised on Stream IO Create");
when others =>
Report.Failed ("Unexpected exception raised on Stream IO Create");
end Test_for_Stream_IO_Support;
Report.Result;
end CXACA01;
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