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 *  or more contributor license agreements.  See the NOTICE file
 *  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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package org.apache.cayenne.access;

import org.apache.cayenne.di.Inject;
import org.apache.cayenne.query.QueryCacheStrategy;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.test.jdbc.DBHelper;
import org.apache.cayenne.test.jdbc.TableHelper;
import org.apache.cayenne.testdo.testmap.Artist;
import org.apache.cayenne.unit.di.server.CayenneProjects;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
import org.junit.Before;
import org.junit.Test;

import java.util.List;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;

@UseServerRuntime(CayenneProjects.TESTMAP_PROJECT)
public class DataContextPaginatedQueryIT extends ServerCase {

    @Inject
    protected DataContext context;

    @Inject
    protected DBHelper dbHelper;

    protected TableHelper tArtist;

    @Before
    public void setUp() throws Exception {
        tArtist = new TableHelper(dbHelper, "ARTIST");
        tArtist.setColumns("ARTIST_ID", "ARTIST_NAME");
    }

    protected void createArtistsDataSet() throws Exception {
        tArtist.insert(33001, "artist1");
        tArtist.insert(33002, "artist2");
        tArtist.insert(33003, "artist3");
        tArtist.insert(33004, "artist4");
        tArtist.insert(33005, "artist5");
        tArtist.insert(33006, "artist6");
        tArtist.insert(33007, "artist7");
        tArtist.insert(33008, "artist8");
        tArtist.insert(33009, "artist9");
        tArtist.insert(33010, "artist10");
    }

    @Test
    public void testLocalCache() throws Exception {

        createArtistsDataSet();

        SelectQuery<Artist> query = new SelectQuery<Artist>(Artist.class);
        query.addOrdering(Artist.ARTIST_NAME.asc());
        query.setCacheStrategy(QueryCacheStrategy.LOCAL_CACHE);
        query.setPageSize(5);

        List<?> results1 = context.performQuery(query);
        assertNotNull(results1);

        List<?> results2 = context.performQuery(query);
        assertNotNull(results2);
        assertSame(results1, results2);

        results1.get(1);
        List<?> results3 = context.performQuery(query);
        assertNotNull(results3);
        assertSame(results1, results3);

        results1.get(7);
        List<?> results4 = context.performQuery(query);
        assertNotNull(results4);
        assertSame(results1, results4);
    }
}