------------------------------------------------------------------------------
-- Copyright (c) 2013, Natacha Porté --
-- --
-- Permission to use, copy, modify, and distribute this software for any --
-- purpose with or without fee is hereby granted, provided that the above --
-- copyright notice and this permission notice appear in all copies. --
-- --
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES --
-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF --
-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR --
-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES --
-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN --
-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF --
-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. --
------------------------------------------------------------------------------
------------------------------------------------------------------------------
-- Natools.S_Expressions.Test_Tools provides tools used in S-expression --
-- test suites. --
-- Memory_Stream is a stream implementation around a memory buffer where --
-- written data can be subsequently read. A secondary buffer of expected --
-- data can be optionally used, and the mismatch marker is set when written --
-- data does not match expected data. --
------------------------------------------------------------------------------
with Ada.Streams;
with Natools.Tests;
with Natools.S_Expressions.Atom_Buffers;
package Natools.S_Expressions.Test_Tools is
pragma Preelaborate (Test_Tools);
package NT renames Natools.Tests;
procedure Dump_Atom
(Report : in out NT.Reporter'Class;
Data : in Atom;
Label : in String := "");
procedure Dump_Atom
(Test : in out NT.Test;
Data : in Atom;
Label : in String := "");
-- Dump contents on Data as info in Report
procedure Test_Atom
(Report : in out NT.Reporter'Class;
Test_Name : in String;
Expected : in Atom;
Found : in Atom);
procedure Test_Atom
(Test : in out NT.Test;
Expected : in Atom;
Found : in Atom);
-- Report success when Found is equal to Expected, and failure
-- with diagnostics otherwise.
type Memory_Stream is new Ada.Streams.Root_Stream_Type with private;
overriding procedure Read
(Stream : in out Memory_Stream;
Item : out Ada.Streams.Stream_Element_Array;
Last : out Ada.Streams.Stream_Element_Offset);
-- Consume data from the beginning of internal buffer
overriding procedure Write
(Stream : in out Memory_Stream;
Item : in Ada.Streams.Stream_Element_Array);
-- Append data at the end of internal buffer
function Get_Data (Stream : Memory_Stream) return Atom;
-- Return internal buffer
function Unread_Data (Stream : Memory_Stream) return Atom;
-- Return part of internal buffer that has not yet been read
procedure Set_Data
(Stream : in out Memory_Stream;
Data : in Atom);
-- Replace whole internal buffer with Data
function Unread_Expected (Stream : Memory_Stream) return Atom;
-- Return part of expected buffer that has not been matched yet
procedure Set_Expected
(Stream : in out Memory_Stream;
Data : in Atom;
Reset_Mismatch : in Boolean := True);
-- Replace buffer of expected data
function Has_Mismatch (Stream : Memory_Stream) return Boolean;
procedure Reset_Mismatch (Stream : in out Memory_Stream);
-- Accessor and mutator of the mismatch flag
function Mismatch_Index (Stream : Memory_Stream) return Count;
-- Return the position of the first mismatching octet,
-- or 0 when there has been no mismatch.
private
type Memory_Stream is new Ada.Streams.Root_Stream_Type with record
Internal : Atom_Buffers.Atom_Buffer;
Expected : Atom_Buffers.Atom_Buffer;
Read_Pointer : Count := 0;
Expect_Pointer : Count := 0;
Mismatch : Boolean := False;
end record;
end Natools.S_Expressions.Test_Tools;