opencog-atomspace / tests / atoms / evaluation / MemberLinkUTest.cxxtest

/*
 * tests/atoms/MemberLinkUTest.cxxtest
 *
 * Copyright (C) 2020 Linas Vepstas
 * All Rights Reserved
 *
 * Author: Linas Vepstas
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License v3 as
 * published by the Free Software Foundation and including the exceptions
 * at http://opencog.org/wiki/Licenses
 *
 * This program 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 Affero General Public License
 * along with this program; if not, write to:
 * Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include <opencog/atomspace/AtomSpace.h>
#include <opencog/atoms/execution/EvaluationLink.h>

using namespace opencog;

class MemberLinkUTest :  public CxxTest::TestSuite
{
private:
	AtomSpace _as;

public:
	MemberLinkUTest()
	{
		logger().set_print_to_stdout_flag(true);
		logger().set_timestamp_flag(false);
		logger().set_sync_flag(true);
	}

	void setUp() {}

	void tearDown() {}

	void test_membership();
};

#define N _as.add_node
#define L _as.add_link

// Basic test
void MemberLinkUTest::test_membership()
{
	logger().info("BEGIN TEST: %s", __FUNCTION__);

	Handle A = N(CONCEPT_NODE, "A");
	Handle B = N(CONCEPT_NODE, "B");
	Handle C = N(CONCEPT_NODE, "C");
	Handle D = N(CONCEPT_NODE, "D");
	Handle S = L(SET_LINK, {A, B, C});

	Handle AS = L(MEMBER_LINK, {A, S});
	Handle DS = L(MEMBER_LINK, {D, S});

	bool result = AS->bevaluate();
	printf("Got result=%s\n", result ? "true" : "false");
	TS_ASSERT(result);

	result = DS->bevaluate();
	TS_ASSERT(not result);

	logger().info("END TEST: %s", __FUNCTION__);
}