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|
-- CXAC004.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 Stream_Access type and Stream function found in package
-- Ada.Text_IO.Text_Streams allows a text file to be processed with the
-- functionality of streams.
--
-- TEST DESCRIPTION:
-- This test verifies that the package Ada.Text_IO.Text_Streams is
-- available and that the functionality it contains allows a text file to
-- be manipulated as a stream.
-- The test defines data objects of a variety of types that can be stored
-- in a text file. A text file and associated text stream are then
-- defined, and the 'Write attribute is used to enter the individual data
-- items into the text stream. Once all the individual data items have
-- been written to the stream, the 'Output attribute is used to write
-- arrays of these same data objects to the stream.
-- The text file is reset to serve as an input file, and the 'Read
-- attribute is used to extract the individual data items from the
-- stream. These items are then verified against the data originally
-- written to the stream. Finally, the 'Input attribute is used to
-- extract the data arrays from the stream. These arrays are then
-- verified against the original data written to the stream.
--
-- APPLICABILITY CRITERIA:
-- Applicable to implementations that support external text files.
--
-- CHANGE HISTORY:
-- 06 Jul 95 SAIC Initial prerelease version.
-- 26 Feb 97 PWB.CTA Allowed for non-support of some IO operations;
-- removed requirement for support of decimal types.
--!
with Report;
with Ada.Text_IO;
with Ada.Text_IO.Text_Streams;
with Ada.Characters.Latin_1;
with Ada.Strings.Unbounded;
procedure CXAC004 is
Data_File : Ada.Text_IO.File_Type;
Data_Filename : constant String :=
Report.Legal_File_Name ( Nam => "CXAC004" );
Incomplete : exception;
begin
Report.Test ("CXAC004", "Check that the Stream_Access type and Stream " &
"function found in package " &
"Ada.Text_IO.Text_Streams allows a text file to " &
"be processed with the functionality of streams");
Test_for_IO_Support:
begin
-- Check for Text_IO support in creating the data file. If the
-- implementation does not support external files, Name_Error or
-- Use_Error will be raised at the point of the following call to
-- Create, resulting in a Not_Applicable test result.
Ada.Text_IO.Create(Data_File, Ada.Text_IO.Out_File, Data_Filename);
exception
when Ada.Text_IO.Use_Error | Ada.Text_IO.Name_Error =>
Report.Not_Applicable
( "Files not supported - Create as Out_File for Text_IO" );
raise Incomplete;
end Test_for_IO_Support;
Test_Block:
declare
use Ada.Characters.Latin_1, Ada.Strings.Unbounded;
TC_Items : constant := 3;
-- Declare types and objects that will be used as data values to be
-- written to and read from the text file/stream.
type Enum_Type is (Red, Yellow, Green, Blue, Indigo);
type Fixed_Type is delta 0.125 range 0.0..255.0;
type Float_Type is digits 7 range 0.0..1.0E5;
type Modular_Type is mod 256;
subtype Str_Type is String(1..4);
type Char_Array_Type is array (1..TC_Items) of Character;
type Enum_Array_Type is array (1..TC_Items) of Enum_Type;
type Fixed_Array_Type is array (1..TC_Items) of Fixed_Type;
type Float_Array_Type is array (1..TC_Items) of Float_Type;
type Int_Array_Type is array (1..TC_Items) of Integer;
type Mod_Array_Type is array (1..TC_Items) of Modular_Type;
type Str_Array_Type is array (1..TC_Items) of Str_Type;
type Unb_Str_Array_Type is array (1..TC_Items) of Unbounded_String;
Char_Array : Char_Array_Type := ('A', 'z', Yen_Sign);
TC_Char_Array_1,
TC_Char_Array_2 : Char_Array_Type := (others => Space);
Enum_Array : Enum_Array_Type := (Blue, Yellow, Indigo);
TC_Enum_Array_1,
TC_Enum_Array_2 : Enum_Array_Type := (others => Red);
Fix_Array : Fixed_Array_Type := (0.125, 123.5, 250.750);
TC_Fix_Array_1,
TC_Fix_Array_2 : Fixed_Array_Type := (others => 0.0);
Flt_Array : Float_Array_Type := (1.0, 150.0, 1500.0);
TC_Flt_Array_1,
TC_Flt_Array_2 : Float_Array_Type := (others => 0.0);
Int_Array : Int_Array_Type := (124, 2349, -24_001);
TC_Int_Array_1,
TC_Int_Array_2 : Int_Array_Type := (others => -99);
Mod_Array : Mod_Array_Type := (10, 127, 255);
TC_Mod_Array_1,
TC_Mod_Array_2 : Mod_Array_Type := (others => 0);
Str_Array : Str_Array_Type := ("abcd", "klmn", "wxyz");
TC_Str_Array_1,
TC_Str_Array_2 : Str_Array_Type := (others => " ");
UStr_Array : Unb_Str_Array_Type :=
(To_Unbounded_String("cat"),
To_Unbounded_String("testing"),
To_Unbounded_String("ACVC"));
TC_UStr_Array_1,
TC_UStr_Array_2 : Unb_Str_Array_Type :=
(others => Null_Unbounded_String);
-- Create a stream access object pointing to the data file.
Data_Stream : Ada.Text_IO.Text_Streams.Stream_Access :=
Ada.Text_IO.Text_Streams.Stream(File => Data_File);
begin
-- Use the 'Write attribute to enter the three sets of data items
-- into the data stream.
-- Note that the data will be mixed within the text file.
for i in 1..TC_Items loop
Character'Write (Data_Stream, Char_Array(i));
Enum_Type'Write (Data_Stream, Enum_Array(i));
Fixed_Type'Write (Data_Stream, Fix_Array(i));
Float_Type'Write (Data_Stream, Flt_Array(i));
Integer'Write (Data_Stream, Int_Array(i));
Modular_Type'Write (Data_Stream, Mod_Array(i));
Str_Type'Write (Data_Stream, Str_Array(i));
Unbounded_String'Write(Data_Stream, UStr_Array(i));
end loop;
-- Use the 'Output attribute to enter the entire arrays of each
-- type of data items into the data stream.
-- Note that the array bounds will be written to the stream as part
-- of the action of the 'Output attribute.
Char_Array_Type'Output (Data_Stream, Char_Array);
Enum_Array_Type'Output (Data_Stream, Enum_Array);
Fixed_Array_Type'Output (Data_Stream, Fix_Array);
Float_Array_Type'Output (Data_Stream, Flt_Array);
Int_Array_Type'Output (Data_Stream, Int_Array);
Mod_Array_Type'Output (Data_Stream, Mod_Array);
Str_Array_Type'Output (Data_Stream, Str_Array);
Unb_Str_Array_Type'Output (Data_Stream, UStr_Array);
-- Reset the data file to mode In_File. The data file will now serve
-- as the source of data which will be compared to the original data
-- written to the file above.
Reset1:
begin
Ada.Text_IO.Reset (File => Data_File, Mode => Ada.Text_IO.In_File);
exception
when Ada.Text_IO.Use_Error =>
Report.Not_Applicable
( "Reset to In_File not supported for Text_IO" );
raise Incomplete;
end Reset1;
-- Extract and validate all the single data items from the stream.
for i in 1..TC_Items loop
Character'Read (Data_Stream, TC_Char_Array_1(i));
Enum_Type'Read (Data_Stream, TC_Enum_Array_1(i));
Fixed_Type'Read (Data_Stream, TC_Fix_Array_1(i));
Float_Type'Read (Data_Stream, TC_Flt_Array_1(i));
Integer'Read (Data_Stream, TC_Int_Array_1(i));
Modular_Type'Read (Data_Stream, TC_Mod_Array_1(i));
Str_Type'Read (Data_Stream, TC_Str_Array_1(i));
Unbounded_String'Read (Data_Stream, TC_UStr_Array_1(i));
end loop;
if TC_Char_Array_1 /= Char_Array then
Report.Failed("Character values do not match");
end if;
if TC_Enum_Array_1 /= Enum_Array then
Report.Failed("Enumeration values do not match");
end if;
if TC_Fix_Array_1 /= Fix_Array then
Report.Failed("Fixed point values do not match");
end if;
if TC_Flt_Array_1 /= Flt_Array then
Report.Failed("Floating point values do not match");
end if;
if TC_Int_Array_1 /= Int_Array then
Report.Failed("Integer values do not match");
end if;
if TC_Mod_Array_1 /= Mod_Array then
Report.Failed("Modular values do not match");
end if;
if TC_Str_Array_1 /= Str_Array then
Report.Failed("String values do not match");
end if;
if TC_UStr_Array_1 /= UStr_Array then
Report.Failed("Unbounded_String values do not match");
end if;
-- Extract and validate all data arrays from the data stream.
-- Note that the 'Input attribute denotes a function, whereas the
-- other stream oriented attributes in this test denote procedures.
TC_Char_Array_2 := Char_Array_Type'Input(Data_Stream);
TC_Enum_Array_2 := Enum_Array_Type'Input(Data_Stream);
TC_Fix_Array_2 := Fixed_Array_Type'Input(Data_Stream);
TC_Flt_Array_2 := Float_Array_Type'Input(Data_Stream);
TC_Int_Array_2 := Int_Array_Type'Input(Data_Stream);
TC_Mod_Array_2 := Mod_Array_Type'Input(Data_Stream);
TC_Str_Array_2 := Str_Array_Type'Input(Data_Stream);
TC_UStr_Array_2 := Unb_Str_Array_Type'Input(Data_Stream);
if TC_Char_Array_2 /= Char_Array then
Report.Failed("Character array values do not match");
end if;
if TC_Enum_Array_2 /= Enum_Array then
Report.Failed("Enumeration array values do not match");
end if;
if TC_Fix_Array_2 /= Fix_Array then
Report.Failed("Fixed point array values do not match");
end if;
if TC_Flt_Array_2 /= Flt_Array then
Report.Failed("Floating point array values do not match");
end if;
if TC_Int_Array_2 /= Int_Array then
Report.Failed("Integer array values do not match");
end if;
if TC_Mod_Array_2 /= Mod_Array then
Report.Failed("Modular array values do not match");
end if;
if TC_Str_Array_2 /= Str_Array then
Report.Failed("String array values do not match");
end if;
if TC_UStr_Array_2 /= UStr_Array then
Report.Failed("Unbounded_String array values do not match");
end if;
exception
when Incomplete =>
raise;
when others => Report.Failed ("Exception raised in Test_Block");
end Test_Block;
Deletion:
begin
-- Delete the data file.
if not Ada.Text_IO.Is_Open(Data_File) then
Ada.Text_IO.Open(Data_File, Ada.Text_IO.In_File, Data_Filename);
end if;
Ada.Text_IO.Delete(Data_File);
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 CXAC004;
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