opencog-atomspace-storage / tests / persist / csv / CSVLoadUTest.cxxtest

/*
 * CSVLoadUTest.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 <opencog/atomspace/AtomSpace.h>
#include <opencog/atoms/value/LinkValue.h>
#include <opencog/persist/csv/table_read.h>

using namespace opencog;

class CSVLoadUTest : public CxxTest::TestSuite {

private:
	AtomSpacePtr _asp;

public:
	CSVLoadUTest() {
		logger().set_print_to_stdout_flag(true);
		_asp = createAtomSpace();
	}

	void setUp() { _asp->clear(); }

	void tearDown() {}

	void test_simple_load();
};

// Test load_csv_table
void CSVLoadUTest::test_simple_load()
{
	logger().info("BEGIN TEST: %s", __FUNCTION__);

	Handle h = _asp->add_node(CONCEPT_NODE, "foo");

	// Argh. Ugly. Fix.
	load_csv_table(_asp, h, PROJECT_SOURCE_DIR "/tests/persist/csv/simple.csv");

	// There's the five columns, plus the table of contents.
	HandleSet keys = h->getKeys();
	TS_ASSERT_EQUALS(6, keys.size());

	Handle colkey = _asp->add_node(PREDICATE_NODE, "*-column-keys-*");
	ValuePtr kvp = h->getValue(colkey);
	TS_ASSERT_EQUALS(5, kvp->size());

	// Loop over the columns
	LinkValuePtr lvp = LinkValueCast(kvp);
	HandleSeq keylist = lvp->to_handle_seq();
	for (const Handle& key : keylist)
	{
		ValuePtr vp = h->getValue(key);
		TS_ASSERT_EQUALS(2, vp->size());
		printf("Column %s is %s\n", key->to_short_string().c_str(),
			vp->to_string().c_str());
	}

	// Loop over columns again, verify types.
	int bc = 0;
	int fc = 0;
	int sc = 0;
	for (const Handle& key : keylist)
	{
		ValuePtr vp = h->getValue(key);
		Type vt = vp->get_type();
		if (BOOL_VALUE == vt) bc++;
		if (FLOAT_VALUE == vt) fc++;
		if (STRING_VALUE == vt) sc++;
	}
	TS_ASSERT_EQUALS(3, bc);
	TS_ASSERT_EQUALS(1, fc);
	TS_ASSERT_EQUALS(1, sc);

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