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package org.apache.cayenne.lifecycle.sort;

import org.apache.cayenne.configuration.server.ServerRuntime;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.EntityResolver;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

import java.util.Arrays;
import java.util.List;

import static org.junit.Assert.assertEquals;

@Deprecated
public class WeightedAshwoodEntitySorterTest {

    private ServerRuntime runtime;

    @Before
    public void setUp() throws Exception {
        runtime = ServerRuntime.builder().addConfig("cayenne-lifecycle.xml").build();
    }

    @After
    public void tearDown() throws Exception {
        runtime.shutdown();
    }

    @Test
    public void testSortDbEntities() {

        EntityResolver resolver = runtime.getDataDomain().getEntityResolver();

        // since it is impossible to ensure non-coincidental sort order of unrelated
        // DbEntities (without overriding DbEntity.hashCode()), we'll test on 2 entities
        // with a relationship, and reverse the topological order with SortWeight annotation.

        List<DbEntity> eSorted = Arrays.asList(resolver.getDbEntity("SORT_DEP"), resolver.getDbEntity("SORT_ROOT"));

        List<DbEntity> e1 = Arrays.asList(resolver.getDbEntity("SORT_ROOT"), resolver.getDbEntity("SORT_DEP"));

        List<DbEntity> e2 = Arrays.asList(resolver.getDbEntity("SORT_DEP"), resolver.getDbEntity("SORT_ROOT"));

        WeightedAshwoodEntitySorter sorter = new WeightedAshwoodEntitySorter();
        sorter.setEntityResolver(resolver);

        sorter.sortDbEntities(e1, false);
        assertEquals(eSorted, e1);

        sorter.sortDbEntities(e2, false);
        assertEquals(eSorted, e2);
    }
}