opencog-atomspace / tests / atoms / base / LinkUTest.cxxtest

/*
 * tests/atoms/base/LinkUTest.cxxtest
 *
 * Copyright (C) 2002-2007 Novamente LLC
 * All Rights Reserved
 *
 * Written by Welter Silva <welter@vettalabs.com>
 *
 * 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/util/platform.h>

#include <opencog/atoms/base/Node.h>
#include <opencog/atoms/base/Link.h>
#include <opencog/atoms/atom_types/atom_types.h>

using namespace opencog;

class LinkUTest :  public CxxTest::TestSuite
{
private:

public:
    LinkUTest() {
    }

    void setUp() {}

    void tearDown() {}

    void testEquals()
    {
        Handle n1(createNode(CONCEPT_NODE, "TEST"));
        Handle n2(createNode(CONCEPT_NODE, "TEST"));
        Handle l1(createLink(LIST_LINK));
        Handle l2(createLink(LIST_LINK));
        TS_ASSERT(l1->get_arity() == 0);
        TS_ASSERT(l2->get_arity() == 0);

        Handle l3(createLink(LIST_LINK, n1));
        Handle l4(createLink(LIST_LINK, n1));
        Handle l5(createLink(INHERITANCE_LINK, n1));
        Handle l6(createLink(INHERITANCE_LINK, n1));
        TS_ASSERT(l3->get_arity() == 1);
        TS_ASSERT(l4->get_arity() == 1);
        TS_ASSERT(l5->get_arity() == 1);
        TS_ASSERT(l6->get_arity() == 1);

        HandleSeq out3;
        Handle l7(createLink(INHERITANCE_LINK, n1, n2));
        Handle l8(createLink(INHERITANCE_LINK, n1, n2));
        TS_ASSERT(l7->get_arity() == 2);
        TS_ASSERT(l8->get_arity() == 2);

        TS_ASSERT(*l1 == *l2);
        TS_ASSERT(*l3 == *l4);
        TS_ASSERT(*l5 == *l6);
        TS_ASSERT(*l7 == *l8);

        TS_ASSERT(*l1 != *l3);
        TS_ASSERT(*l1 != *l4);
        TS_ASSERT(*l1 != *l5);
        TS_ASSERT(*l1 != *l6);
        TS_ASSERT(*l1 != *l7);
        TS_ASSERT(*l1 != *l8);

        TS_ASSERT(*l3 != *l1);
        TS_ASSERT(*l3 != *l2);
        TS_ASSERT(*l3 != *l5);
        TS_ASSERT(*l3 != *l6);
        TS_ASSERT(*l3 != *l7);
        TS_ASSERT(*l3 != *l8);

        TS_ASSERT(*l5 != *l1);
        TS_ASSERT(*l5 != *l2);
        TS_ASSERT(*l5 != *l3);
        TS_ASSERT(*l5 != *l4);
        TS_ASSERT(*l5 != *l7);
        TS_ASSERT(*l5 != *l8);

        TS_ASSERT(*l7 != *l1);
        TS_ASSERT(*l7 != *l2);
        TS_ASSERT(*l7 != *l3);
        TS_ASSERT(*l7 != *l4);
        TS_ASSERT(*l7 != *l5);
        TS_ASSERT(*l7 != *l6);
    }

    void test_to_short_string()
    {
        // Make sure Link::to_short_string() does not end with a
        // newline as it is required by atomspace-dht
        Handle A(createNode(CONCEPT_NODE, "A"));
        Handle B(createNode(CONCEPT_NODE, "B"));
        Handle AB(createLink(LIST_LINK, A, B));

        std::string result = AB->to_short_string();
        std::string expect = "(ListLink (ConceptNode \"A\") (ConceptNode \"B\"))";

        // TS_ASSERT_EQUALS(result, expect);
    }
};