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195 | -------------------------------------------------------------------------------
--
-- Copyright (C) 2009, 2014 Stephe Leake
-- Copyright (C) 2000 Ted Dennison
--
-- This file is part of the OpenToken package.
--
-- The OpenToken package is free software; you can redistribute it and/or
-- modify it under the terms of the GNU General Public License as published
-- by the Free Software Foundation; either version 3, or (at your option)
-- any later version. The OpenToken package is distributed in the hope that
-- it will be useful, but WITHOUT ANY WARRANTY; without even the implied
-- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details. You should have received
-- a copy of the GNU General Public License distributed with the OpenToken
-- package; see file GPL.txt. If not, write to the Free Software Foundation,
-- 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
--
-- As a special exception, if other files instantiate generics from
-- this unit, or you link this unit with other files to produce an
-- executable, this unit does not by itself cause the resulting
-- executable to be covered by the GNU General Public License. This
-- exception does not however invalidate any other reasons why the
-- executable file might be covered by the GNU Public License.
--
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
-- Test driver for the token list handling code.
-------------------------------------------------------------------------------
with Ada.Command_Line;
with Ada.Exceptions;
with Ada.Text_IO;
with OpenToken.Text_Feeder.String;
with OpenToken.Token.List;
procedure Token_List_Test.Run is
begin
----------------------------------------------------------------------------
-- Test Case 1
--
-- Inputs : A valid list of tokens.
--
-- Expected Results : A Token.LIst
-- Purpose : Verify that a valid list of tokens is properly parsed.
Test_Case_1 :
declare
Parse_String : constant String := "5, 3, 1000, 78";
Analyzer : constant Tokenizer.Handle := Tokenizer.Initialize (Syntax, String_Feeder'Access);
List : aliased OpenToken.Token.List.Class :=
OpenToken.Token.List.Get
(Element => Syntax (Int).Token_Handle,
Separator => Syntax (Comma).Token_Handle);
begin
Ada.Text_IO.Put ("Testing parsing of valid token list...");
Ada.Text_IO.Flush;
-- Put the parse string into the analyzer's text feeder.
OpenToken.Text_Feeder.String.Set
(Feeder => String_Feeder,
Value => Parse_String);
-- Load up the first token
Analyzer.Find_Next;
-- Perform the parse
OpenToken.Token.List.Parse (List'Access, Analyzer);
if Analyzer.ID = EOF then
Ada.Text_IO.Put_Line ("passed");
else
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
Ada.Text_IO.Put_Line ("failed.");
Ada.Text_IO.Put_Line
("There was an unexpected " &
Token_IDs'Image (Analyzer.ID) &
" left on the input stream.");
end if;
exception
when Error : others =>
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
Ada.Text_IO.Put_Line ("failed due to parse exception:");
Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (Error));
end Test_Case_1;
----------------------------------------------------------------------------
-- Test Case 2
--
-- Inputs : A couple of integer tokens.
--
-- Expected Results : A Token.List
-- Purpose : Verify that a single token is properly parsed as a
-- token list.
Test_Case_2 : declare
Parse_String : constant String := "5 1000";
Analyzer : constant Tokenizer.Handle := Tokenizer.Initialize (Syntax, String_Feeder'Access);
List : aliased OpenToken.Token.List.Class :=
OpenToken.Token.List.Get
(Element => Syntax (Int).Token_Handle,
Separator => Syntax (Comma).Token_Handle);
begin
Ada.Text_IO.Put ("Testing parsing of single-token token list...");
Ada.Text_IO.Flush;
-- Put the parse string into the analyzer's text feeder.
OpenToken.Text_Feeder.String.Set
(Feeder => String_Feeder,
Value => Parse_String);
-- Load up the first token
Analyzer.Find_Next;
-- Parse 2 token lists (one for each integer).
OpenToken.Token.List.Parse (List'Access, Analyzer);
OpenToken.Token.List.Parse (List'Access, Analyzer);
if Analyzer.ID = EOF then
Ada.Text_IO.Put_Line ("passed");
else
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
Ada.Text_IO.Put_Line ("failed.");
Ada.Text_IO.Put_Line
("There was an unexpected " &
Token_IDs'Image (Analyzer.ID) &
" left on the input stream.");
end if;
exception
when Error : others =>
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
Ada.Text_IO.Put_Line ("failed due to parse exception:");
Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (Error));
end Test_Case_2;
----------------------------------------------------------------------------
-- Test Case 3
--
-- Inputs : An invalid token list that ends with a comma.
--
-- Expected Results : A parse exception.
-- Purpose : Verify that an invalid token list is correctly
-- diagnosed.
--
Test_Case_3 : declare
Parse_String : constant String := "5,1000, ";
Analyzer : constant Tokenizer.Handle := Tokenizer.Initialize (Syntax, String_Feeder'Access);
List : aliased OpenToken.Token.List.Class :=
OpenToken.Token.List.Get
(Element => Syntax (Int).Token_Handle,
Separator => Syntax (Comma).Token_Handle);
begin
Ada.Text_IO.Put ("Testing parsing of invalid token list...");
Ada.Text_IO.Flush;
-- Put the parse string into the analyzer's text feeder.
OpenToken.Text_Feeder.String.Set
(Feeder => String_Feeder,
Value => Parse_String);
-- Load up the first token
Analyzer.Find_Next;
-- Parse 2 token lists (one for each integer).
OpenToken.Token.List.Parse (List'Access, Analyzer);
Ada.Text_IO.Put_Line ("failed.");
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
exception
when OpenToken.Parse_Error =>
Ada.Text_IO.Put_Line ("passed.");
when Error : others =>
Ada.Command_Line.Set_Exit_Status (Ada.Command_Line.Failure);
Ada.Text_IO.Put_Line ("failed due to parse exception:");
Ada.Text_IO.Put_Line (Ada.Exceptions.Exception_Information (Error));
end Test_Case_3;
end Token_List_Test.Run;
|