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 *  to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne.access;

import org.apache.cayenne.Cayenne;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.query.RelationshipQuery;
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.testdo.testmap.Painting;
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.assertEquals;
import static org.junit.Assert.assertTrue;

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

    @Inject
    private DataContext context;

    @Inject
    private DBHelper dbHelper;

    private TableHelper tArtist;
    private TableHelper tPainting;

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

    private void createOneArtistOnePaintingDataSet() throws Exception {

        tArtist.insert(1, "a1");
        tPainting.insert(1, "p1", 1);
    }

    @Test
    public void testUnrefreshingToOne() throws Exception {

        createOneArtistOnePaintingDataSet();

        Painting p = Cayenne.objectForPK(context, Painting.class, 1);

        // resolve artist once before running non-refreshing query, to check that we do
        // not refresh the object

        Artist a = Cayenne.objectForPK(context, Artist.class, 1);
        long v = a.getSnapshotVersion();
        int writeCalls = a.getPropertyWrittenDirectly();
        assertEquals("a1", a.getArtistName());

        assertEquals(1, tArtist
                .update()
                .set("ARTIST_NAME", "a2")
                .where("ARTIST_ID", 1)
                .execute());

        RelationshipQuery toOne = new RelationshipQuery(
                p.getObjectId(),
                Painting.TO_ARTIST.getName(),
                false);

        List<Artist> related = context.performQuery(toOne);
        assertEquals(1, related.size());
        assertTrue(related.contains(a));
        assertEquals("a1", a.getArtistName());
        assertEquals(v, a.getSnapshotVersion());
        assertEquals(
                "Looks like relationship query caused snapshot refresh",
                writeCalls,
                a.getPropertyWrittenDirectly());
    }

    @Test
    public void testRefreshingToOne() throws Exception {

        createOneArtistOnePaintingDataSet();

        Painting p = Cayenne.objectForPK(context, Painting.class, 1);

        // resolve artist once before running non-refreshing query, to check that we do
        // not refresh the object

        Artist a = Cayenne.objectForPK(context, Artist.class, 1);
        long v = a.getSnapshotVersion();
        int writeCalls = a.getPropertyWrittenDirectly();
        assertEquals("a1", a.getArtistName());

        assertEquals(1, tArtist
                .update()
                .set("ARTIST_NAME", "a2")
                .where("ARTIST_ID", 1)
                .execute());

        RelationshipQuery toOne = new RelationshipQuery(
                p.getObjectId(),
                Painting.TO_ARTIST.getName(),
                true);

        List<Artist> related = context.performQuery(toOne);
        assertEquals(1, related.size());
        assertTrue(related.contains(a));
        assertEquals("a2", a.getArtistName());
        assertTrue("Looks like relationship query didn't cause a snapshot refresh", v < a
                .getSnapshotVersion());
        assertTrue(
                "Looks like relationship query didn't cause a snapshot refresh",
                writeCalls < a.getPropertyWrittenDirectly());
    }
}