src/test/org/apache/ddlutils/io/TestDropColumn.java

package org.apache.ddlutils.io;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * 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
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.math.BigDecimal;
import java.sql.Date;
import java.util.List;

import junit.framework.Test;

/**
 * Tests database alterations that drop columns.
 * 
 * @version $Revision: $
 */
public class TestDropColumn extends RoundtripTestBase
{
    /**
     * Parameterized test case pattern.
     * 
     * @return The tests
     */
    public static Test suite() throws Exception
    {
        return getTests(TestDropColumn.class);
    }

    /**
     * Tests the removal of a column.
     */
    public void testDropColumn()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='TIMESTAMP'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Date(new java.util.Date().getTime()) });

    	alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
    }

    /**
     * Tests the removal of a auto increment column.
     */
    public void testDropAutoIncrementColumn()
    {
        if (!getPlatformInfo().isNonPKIdentityColumnsSupported())
        {
            return;
        }

        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER' autoIncrement='true'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
    }

    /**
     * Tests the removal of a required column.
     */
    public void testDropRequiredColumn()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='NUMERIC' size='12,0' required='true'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new BigDecimal(2) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
    }

    /**
     * Tests the removal of a column that has a default value.
     */
    public void testDropColumnWithDefault()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='DOUBLE' default='3.1'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
    }

    /**
     * Tests the removal of a required column that has a default value.
     */
    public void testDropRequiredColumnWithDefault()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='CHAR' size='8' required='true' default='text'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
    }

    /**
     * Tests the removal of multiple columns.
     */
    public void testDropMultipleColumns()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='CHAR' size='8' default='text'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "    <column name='avalue3' type='DOUBLE' required='true'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), null, new Integer(2), new Double(2) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
        assertEquals(new Integer(2), beans.get(0), "avalue2");
    }

    /**
     * Tests the removal of multiple columns, including one with auto incremen.
     */
    public void testDropMultipleColumnsInclAutoIncrement()
    {
        if (!getPlatformInfo().isNonPKIdentityColumnsSupported())
        {
            return;
        }

        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='CHAR' size='8' default='text'/>\n"+
            "    <column name='avalue2' type='DOUBLE' required='true'/>\n"+
            "    <column name='avalue3' type='INTEGER' autoIncrement='true'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue2' type='DOUBLE' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), null, new Double(2), null });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
        assertEquals(new Double(2),  beans.get(0), "avalue2");
    }

    /**
     * Tests the removal of a primary key column.
     */
    public void testDropPKColumn()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk1' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Integer(2), new Integer(3) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(2), beans.get(0), "pk2");
        assertEquals(new Integer(3), beans.get(0), "avalue");
    }

    /**
     * Tests the removal of the single primary key column.
     */
    public void testDropSinglePKColumn()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Integer(2) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(2), beans.get(0), "avalue");
    }

    /**
     * Tests the removal of multiple primary key columns.
     */
    public void testDropMultiplePKColumns()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk1' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='pk3' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Integer(2), new Integer(3), new Integer(4) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(2), beans.get(0), "pk2");
        assertEquals(new Integer(4), beans.get(0), "avalue");
    }

    /**
     * Tests the removal of all primary key columns.
     */
    public void testDropAllPKColumns()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk1' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='pk3' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Integer(2), new Integer(3), new Integer(4) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(4), beans.get(0), "avalue");
    }

    /**
     * Tests the removal of a column from a non-unique index.
     */
    public void testDropColumnFromIndex()
    {
        if (!getPlatformInfo().isIndicesSupported())
        {
            return;
        }

        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='INTEGER'/>\n"+
            "    <column name='avalue2' type='VARCHAR' size='32'/>\n"+
            "    <index name='test'>\n"+
            "      <index-column name='avalue1'/>\n"+
            "      <index-column name='avalue2'/>\n"+
            "    </index>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue2' type='VARCHAR' size='32'/>\n"+
            "    <index name='test'>\n"+
            "      <index-column name='avalue2'/>\n"+
            "    </index>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Integer(2), "text" });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
        assertEquals((Object)"text", beans.get(0), "avalue2");
    }

    /**
     * Tests the removal of the single column from an unique index.
     */
    public void testDropSingleColumnFromIndex()
    {
        if (!getPlatformInfo().isIndicesSupported())
        {
            return;
        }

        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "    <unique name='test'>\n"+
            "      <unique-column name='avalue'/>\n"+
            "    </unique>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Integer(2) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
    }

    /**
     * Tests the removal of a column from a non-unique index.
     */
    public void testDropMultipleColumnsFromIndex()
    {
        if (!getPlatformInfo().isIndicesSupported())
        {
            return;
        }

        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='INTEGER'/>\n"+
            "    <column name='avalue2' type='VARCHAR' size='32'/>\n"+
            "    <column name='avalue3' type='TIMESTAMP'/>\n"+
            "    <index name='test'>\n"+
            "      <index-column name='avalue1'/>\n"+
            "      <index-column name='avalue2'/>\n"+
            "      <index-column name='avalue3'/>\n"+
            "    </index>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue2' type='VARCHAR' size='32'/>\n"+
            "    <index name='test'>\n"+
            "      <index-column name='avalue2'/>\n"+
            "    </index>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Integer(2), "text" });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
        assertEquals((Object)"text", beans.get(0), "avalue2");
    }

    /**
     * Tests the removal of all column from an unique index.
     */
    public void testDropAllColumnsFromIndex()
    {
        if (!getPlatformInfo().isIndicesSupported())
        {
            return;
        }

        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='INTEGER' required='true'/>\n"+
            "    <column name='avalue2' type='VARCHAR' size='32' required='true'/>\n"+
            "    <column name='avalue3' type='DOUBLE' required='true'/>\n"+
            "    <unique name='test'>\n"+
            "      <unique-column name='avalue1'/>\n"+
            "      <unique-column name='avalue2'/>\n"+
            "      <unique-column name='avalue3'/>\n"+
            "    </unique>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip", new Object[] { new Integer(1), new Integer(2), "text", new Double(2.0) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans = getRows("roundtrip");

        assertEquals(new Integer(1), beans.get(0), "pk");
    }

    /**
     * Tests the removal of the single local column from a foreign key.
     */
    public void testDropSingleLocalColumnFromFK()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='VARCHAR' size='32'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue' foreign='pk'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip1", new Object[] { "text" });
        insertRow("roundtrip2", new Object[] { new Integer(1), "text" });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans1 = getRows("roundtrip1");
        List beans2 = getRows("roundtrip2");

        assertEquals((Object)"text", beans1.get(0), "pk");
        assertEquals(new Integer(1), beans2.get(0), "pk");
    }

    /**
     * Tests the removal of the single foreign column from a foreign key.
     */
    public void testDropSingleForeignColumnFromFK()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='VARCHAR' size='32'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue' foreign='pk'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='VARCHAR' size='32'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip1", new Object[] { "text", new Integer(2) });
        insertRow("roundtrip2", new Object[] { new Integer(1), "text" });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans1 = getRows("roundtrip1");
        List beans2 = getRows("roundtrip2");

        assertEquals(new Integer(2), beans1.get(0), "avalue");
        assertEquals(new Integer(1), beans2.get(0), "pk");
        assertEquals((Object)"text", beans2.get(0), "avalue");
    }

    /**
     * Tests the removal of all local columns from a foreign key.
     */
    public void testDropAllLocalColumnsFromFK()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk1' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='VARCHAR' size='32'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue1' foreign='pk1'/>\n"+
            "      <reference local='avalue2' foreign='pk2'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk1' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip1", new Object[] { "text", new Integer(2) });
        insertRow("roundtrip2", new Object[] { new Integer(1), "text", new Integer(2) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans1 = getRows("roundtrip1");
        List beans2 = getRows("roundtrip2");

        assertEquals((Object)"text", beans1.get(0), "pk1");
        assertEquals(new Integer(2), beans1.get(0), "pk2");
        assertEquals(new Integer(1), beans2.get(0), "pk");
    }

    /**
     * Tests the removal of all foreign columns from a foreign key.
     */
    public void testDropAllForeignColumnsFromFK()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk1' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='VARCHAR' size='32'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue1' foreign='pk1'/>\n"+
            "      <reference local='avalue2' foreign='pk2'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='VARCHAR' size='32'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip1", new Object[] { "text", new Integer(2), new Integer(3) });
        insertRow("roundtrip2", new Object[] { new Integer(1), "text", new Integer(2) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans1 = getRows("roundtrip1");
        List beans2 = getRows("roundtrip2");

        assertEquals(new Integer(3), beans1.get(0), "avalue");
        assertEquals(new Integer(1), beans2.get(0), "pk");
        assertEquals((Object)"text", beans2.get(0), "avalue1");
        assertEquals(new Integer(2), beans2.get(0), "avalue2");
    }

    /**
     * Tests the removal of a local and foreign column from a foreign key.
     */
    public void testDropLocalAndForeignColumnFromFK()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk1' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='VARCHAR' size='32'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue1' foreign='pk1'/>\n"+
            "      <reference local='avalue2' foreign='pk2'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue2' foreign='pk2'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip1", new Object[] { "text", new Integer(2), new Integer(3) });
        insertRow("roundtrip2", new Object[] { new Integer(1), "text", new Integer(2) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans1 = getRows("roundtrip1");
        List beans2 = getRows("roundtrip2");

        assertEquals(new Integer(2), beans1.get(0), "pk2");
        assertEquals(new Integer(3), beans1.get(0), "avalue");
        assertEquals(new Integer(1), beans2.get(0), "pk");
        assertEquals(new Integer(2), beans2.get(0), "avalue2");
    }

    /**
     * Tests the removal of multiple local and foreign columns from a foreign key.
     */
    public void testDropMultipleLocalAndForeignColumnsFromFK()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk1' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='pk3' type='DOUBLE' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='VARCHAR' size='32'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "    <column name='avalue3' type='DOUBLE'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue1' foreign='pk1'/>\n"+
            "      <reference local='avalue2' foreign='pk2'/>\n"+
            "      <reference local='avalue3' foreign='pk3'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue2' foreign='pk2'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip1", new Object[] { "text", new Integer(2), new Double(4), new Integer(3) });
        insertRow("roundtrip2", new Object[] { new Integer(1), "text", new Integer(2), new Double(4) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans1 = getRows("roundtrip1");
        List beans2 = getRows("roundtrip2");

        assertEquals(new Integer(2), beans1.get(0), "pk2");
        assertEquals(new Integer(3), beans1.get(0), "avalue");
        assertEquals(new Integer(1), beans2.get(0), "pk");
        assertEquals(new Integer(2), beans2.get(0), "avalue2");
    }

    /**
     * Tests the removal of all local and foreign columns from a foreign key.
     */
    public void testDropAllLocalAndForeignColumnsFromFK()
    {
        final String model1Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='pk1' type='VARCHAR' size='32' primaryKey='true' required='true'/>\n"+
            "    <column name='pk2' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='pk3' type='DOUBLE' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "    <column name='avalue1' type='VARCHAR' size='32'/>\n"+
            "    <column name='avalue2' type='INTEGER'/>\n"+
            "    <column name='avalue3' type='DOUBLE'/>\n"+
            "    <foreign-key foreignTable='roundtrip1'>\n"+
            "      <reference local='avalue1' foreign='pk1'/>\n"+
            "      <reference local='avalue2' foreign='pk2'/>\n"+
            "      <reference local='avalue3' foreign='pk3'/>\n"+
            "    </foreign-key>\n"+
            "  </table>\n"+
            "</database>";
        final String model2Xml = 
            "<?xml version='1.0' encoding='ISO-8859-1'?>\n"+
            "<database name='roundtriptest'>\n"+
            "  <table name='roundtrip1'>\n"+
            "    <column name='avalue' type='INTEGER'/>\n"+
            "  </table>\n"+
            "  <table name='roundtrip2'>\n"+
            "    <column name='pk' type='INTEGER' primaryKey='true' required='true'/>\n"+
            "  </table>\n"+
            "</database>";

        createDatabase(model1Xml);

        insertRow("roundtrip1", new Object[] { "text", new Integer(2), new Double(4), new Integer(3) });
        insertRow("roundtrip2", new Object[] { new Integer(1), "text", new Integer(2), new Double(4) });

        alterDatabase(model2Xml);

        assertEquals(getAdjustedModel(),
                     readModelFromDatabase("roundtriptest"));

        List beans1 = getRows("roundtrip1");
        List beans2 = getRows("roundtrip2");

        assertEquals(new Integer(3), beans1.get(0), "avalue");
        assertEquals(new Integer(1), beans2.get(0), "pk");
    }
}