%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  This file is part of Logtalk <https://logtalk.org/>
%  Copyright 1998-2021 Paulo Moura <pmoura@logtalk.org>
%  SPDX-License-Identifier: Apache-2.0
%
%  Licensed under the Apache License, Version 2.0 (the "License");
%  you may not use this file except in compliance with the License.
%  You may obtain a copy of the License at
%
%      http://www.apache.org/licenses/LICENSE-2.0
%
%  Unless required by applicable law or agreed to in writing, software
%  distributed under the License is distributed on an "AS IS" BASIS,
%  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%  See the License for the specific language governing permissions and
%  limitations under the License.
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


:- object(tests,
	extends(lgtunit)).

	:- info([
		version is 1:0:0,
		author is 'Paulo Moura',
		date is 2014-05-07,
		comment is 'Unit tests for the dynamic/1 built-in directive.'
	]).

	% test all possible syntaxes for the directive

	:- private(a/0).
	:- dynamic(a/0).

	:- private((b/1, c/2)).
	:- dynamic((b/1, c/2)).

	:- private([d/3, e/4]).
	:- dynamic([d/3, e/4]).

	test(dynamic_1_1) :-
		predicate_property(a, (dynamic)).

	test(dynamic_1_2) :-
		\+ predicate_property(a, static).

	test(dynamic_1_3) :-
		predicate_property(b(_), (dynamic)),
		predicate_property(c(_,_), (dynamic)).

	test(dynamic_1_4) :-
		\+ predicate_property(b(_), static),
		\+ predicate_property(c(_,_), static).

	test(dynamic_1_5) :-
		predicate_property(d(_,_,_), (dynamic)),
		predicate_property(e(_,_,_,_), (dynamic)).

	test(dynamic_1_6) :-
		\+ predicate_property(d(_,_,_), static),
		\+ predicate_property(e(_,_,_,_), static).

	% local (dynamic) predicates, i.e. predicates without
	% a scope directive, are invisible to the reflection
	% built-in predicates such as predicate_property/2

	:- dynamic(g/6).

	test(dynamic_1_7) :-
		\+ predicate_property(g(_,_,_,_,_,_), _).

:- end_object.
