-- 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;