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 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
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 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
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 *  KIND, either express or implied.  See the License for the
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package org.apache.cayenne.query;

import static org.junit.Assert.assertNotNull;

import org.apache.cayenne.testdo.testmap.Artist;
import org.junit.Test;

public class SelectByIdTest {

	@Test
	public void testPrefetch() {

		PrefetchTreeNode root = PrefetchTreeNode.withPath("a.b", PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);

		SelectById<Artist> q = SelectById.query(Artist.class, 6);
		q.prefetch(root);

		PrefetchTreeNode prefetch = q.getPrefetches();

		assertNotNull(prefetch);
		assertNotNull(prefetch.getNode("a.b"));
	}

	@Test
	public void testPrefetch_Path() {

		SelectById<Artist> q = SelectById.query(Artist.class, 7);
		q.prefetch("a.b", PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS);
		PrefetchTreeNode prefetch = q.getPrefetches();

		assertNotNull(prefetch);
		assertNotNull(prefetch.getNode("a.b"));

		q.prefetch("a.c", PrefetchTreeNode.DISJOINT_PREFETCH_SEMANTICS);
		prefetch = q.getPrefetches();

		assertNotNull(prefetch);
		assertNotNull(prefetch.getNode("a.c"));
		assertNotNull(prefetch.getNode("a.b"));
	}

	@Test
	public void testPrefetch_Subroot() {

		PrefetchTreeNode root = PrefetchTreeNode.withPath("a.b", PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);

		SelectById<Artist> q = SelectById.query(Artist.class, 8);
		q.prefetch(root);

		PrefetchTreeNode prefetch = q.getPrefetches();

		assertNotNull(prefetch.getNode("a.b"));

		PrefetchTreeNode subRoot = PrefetchTreeNode.withPath("a.b.c", PrefetchTreeNode.JOINT_PREFETCH_SEMANTICS);
		q.prefetch(subRoot);

		prefetch = q.getPrefetches();

		assertNotNull(prefetch.getNode("a.b"));
		assertNotNull(prefetch.getNode("a.b.c"));
	}
}