BoundJoinTests.java

/*******************************************************************************
 * Copyright (c) 2019 Eclipse RDF4J contributors.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Distribution License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 *******************************************************************************/
package org.eclipse.rdf4j.federated;

import java.util.Arrays;

import org.eclipse.rdf4j.query.QueryEvaluationException;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;

public class BoundJoinTests extends SPARQLBaseTest {

	@Test
	public void testSimpleUnion() throws Exception {
		/* test a simple bound join */
		prepareTest(Arrays.asList("/tests/data/data1.ttl", "/tests/data/data2.ttl"));
		execute("/tests/boundjoin/query01.rq", "/tests/boundjoin/query01.srx", false, true);
	}

	@Test
	public void testSimpleValues() throws Exception {
		/* test with VALUES clause based bound join */
		prepareTest(Arrays.asList("/tests/data/data1.ttl", "/tests/data/data2.ttl"));
		execute("/tests/boundjoin/query01.rq", "/tests/boundjoin/query01.srx", false, true);
	}

	@Test
	public void testBoundJoin_FailingEndpoint() throws Exception {
		/* test a simple bound join */
		prepareTest(Arrays.asList("/tests/data/data1.ttl", "/tests/data/data2.ttl"));

		// specifically reduce the bind join size for this test to run into "fail After"
		fedxRule.getFederationContext().getConfig().withBoundJoinBlockSize(2);

		repoSettings(2).setFailAfter(5); // fail after 5 remote requests on repo 2
		Assertions.assertThrows(QueryEvaluationException.class, () -> {
			execute("/tests/boundjoin/query01.rq", "/tests/boundjoin/query01.srx", false, true);
		});
	}

	@Test
	public void testBoundCheck() throws Exception {

		/* test with VALUES clause based bound join, check join */
		prepareTest(Arrays.asList("/tests/data/data1.ttl", "/tests/data/data2.ttl"));
		execute("/tests/boundjoin/query02_checkJoin.rq", "/tests/boundjoin/query02_checkJoin.srx", false, true);
	}
}