%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%  Copyright 1998-2021 Paulo Moura <pmoura@logtalk.org>
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:- object(tests,
	extends(lgtunit)).

	:- info([
		version is 1:1:0,
		author is 'Paulo Moura',
		date is 2018-03-26,
		comment is 'Unit tests for the instantiates_class/2-3 built-in predicates.'
	]).

	% instantiates_class/2 tests

	throws(instantiates_class_2_1, error(type_error(object_identifier, 1), logtalk(instantiates_class(1, _), _))) :-
		% delay the error to runtime
		{instantiates_class(1, _)}.

	throws(instantiates_class_2_2, error(type_error(object_identifier, 1), logtalk(instantiates_class(_, 1), _))) :-
		% delay the error to runtime
		{instantiates_class(_, 1)}.

	% instantiates_class/3 tests

	throws(instantiates_class_3_1, error(type_error(object_identifier, 1), logtalk(instantiates_class(1, _, _), _))) :-
		% delay the error to runtime
		{instantiates_class(1, _, _)}.

	throws(instantiates_class_3_2, error(type_error(object_identifier, 1), logtalk(instantiates_class(_, 1, _), _))) :-
		% delay the error to runtime
		{instantiates_class(_, 1, _)}.

	throws(instantiates_class_3_3, error(type_error(atom, 1), logtalk(instantiates_class(_, _, 1), _))) :-
		% delay the error to runtime
		{instantiates_class(_, _, 1)}.

	throws(instantiates_class_3_4, error(domain_error(scope, a), logtalk(instantiates_class(_, _, a), _))) :-
		% delay the error to runtime
		{instantiates_class(_, _, a)}.

:- end_object.
