opencog-atomspace-storage / tests / persist / sexpr / DispatchUTest.cxxtest

/*
 * DispatchUTest.cxxtest
 *
 * Copyright (c) 2022 Linas Vepstas
 * SPDX-License-Identifier: AGPL-3.0-or-later
 *
 * 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 <iomanip>

#include <opencog/util/Logger.h>
#include <opencog/atomspace/AtomSpace.h>
#include <opencog/atoms/value/FloatValue.h>
#include <opencog/atoms/value/StringValue.h>

#include "opencog/persist/sexcom/Dispatcher.h"

using namespace opencog;

class MyDispatch : public Dispatcher
{
public:
	MyDispatch();
   std::string my_node(const std::string&);
};

MyDispatch::MyDispatch(void)
{
	using namespace std::placeholders;  // for _1, _2, _3...
	Meth f = std::bind(&MyDispatch::my_node, this, _1);
	install_handler("cog-node", f);
}

std::string MyDispatch::my_node(const std::string& arg)
{
	std::string rv = _default.cog_node(arg);

	return "foobar" + rv;
}

class DispatchUTest : public CxxTest::TestSuite
{
	private:
		AtomSpacePtr as;

	public:
		DispatchUTest()
		{
			logger().set_print_to_stdout_flag(true);
			as = createAtomSpace();
		}

		void setUp() { as->clear(); }
		void tearDown() {}

		void test_overload();
};

// Test cog-node
void DispatchUTest::test_overload()
{
	logger().info("BEGIN TEST: %s", __FUNCTION__);

	std::string in = R"((cog-node 'Concept "foo"))";

	MyDispatch com;
	com.set_base_space(as);
	std::string out = com.interpret_command(in);
	printf("Got >>%s<<\n", out.c_str());

	TS_ASSERT_EQUALS(0, as->get_size());
	TS_ASSERT(0 == out.compare("foobar#f\n"));

	as->add_node(CONCEPT_NODE, "foo");
	out = com.interpret_command(in);
	printf("Got >>%s<<\n", out.c_str());
	TS_ASSERT_EQUALS(1, as->get_size());
	TS_ASSERT(0 == out.compare("foobar(ConceptNode \"foo\")"));

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