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

import org.apache.cayenne.dbsync.merge.factory.HSQLMergerTokenFactory;
import org.apache.cayenne.dbsync.merge.factory.MergerTokenFactory;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.DbJoin;
import org.apache.cayenne.map.DbRelationship;
import org.junit.Assert;
import org.junit.Test;

import java.util.Collections;

import static org.apache.cayenne.dbsync.merge.builders.ObjectMother.dbAttr;
import static org.apache.cayenne.dbsync.merge.builders.ObjectMother.dbEntity;

/**
 * @since 4.0.
 */
public class TokensReverseTest {

    @Test
    public void testReverses() {
        DbAttribute attr = dbAttr().build();
        DbEntity entity = dbEntity().attributes(attr).build();
        DbRelationship rel = new DbRelationship("rel");
        rel.setSourceEntity(entity);
        rel.addJoin(new DbJoin(rel, attr.getName(), "dontKnow"));

        testOneToOneReverse(factory().createAddColumnToDb(entity, attr));
        testOneToOneReverse(factory().createAddColumnToModel(entity, attr));
        testOneToOneReverse(factory().createDropColumnToDb(entity, attr));
        testOneToOneReverse(factory().createDropColumnToModel(entity, attr));

        testOneToOneReverse(factory().createAddRelationshipToDb(entity, rel));
        testOneToOneReverse(factory().createAddRelationshipToModel(entity, rel));
        testOneToOneReverse(factory().createDropRelationshipToDb(entity, rel));
        testOneToOneReverse(factory().createDropRelationshipToModel(entity, rel));

        testOneToOneReverse(factory().createCreateTableToDb(entity));
        testOneToOneReverse(factory().createCreateTableToModel(entity));
        testOneToOneReverse(factory().createDropTableToDb(entity));
        testOneToOneReverse(factory().createDropTableToModel(entity));

        testOneToOneReverse(factory().createSetAllowNullToDb(entity, attr));
        testOneToOneReverse(factory().createSetAllowNullToModel(entity, attr));
        testOneToOneReverse(factory().createSetNotNullToDb(entity, attr));
        testOneToOneReverse(factory().createSetNotNullToModel(entity, attr));

        DbAttribute attr2 = dbAttr().build();
        testOneToOneReverse(factory().createSetColumnTypeToDb(entity, attr, attr2));
        testOneToOneReverse(factory().createSetColumnTypeToModel(entity, attr, attr2));

        testOneToOneReverse(factory().createSetPrimaryKeyToDb(entity, Collections.singleton(attr), Collections.singleton(attr2), "PK"));
        testOneToOneReverse(factory().createSetPrimaryKeyToModel(entity, Collections.singleton(attr), Collections.singleton(attr2), "PK"));

        testOneToOneReverse(factory().createSetValueForNullToDb(entity, attr, new DefaultValueForNullProvider()));
    }

    private void testOneToOneReverse(MergerToken token) {
        MergerToken token2 = token.createReverse(factory()).createReverse(factory());

        Assert.assertEquals(token.getTokenName(), token2.getTokenName());
        Assert.assertEquals(token.getTokenValue(), token2.getTokenValue());
        Assert.assertEquals(token.getDirection(), token2.getDirection());
    }

    private MergerTokenFactory factory() {
        return new HSQLMergerTokenFactory();
    }
}