defaulttablemetadatatest.java

采用 Java 编写的数据库系统单元测试程序。

/*
 *
 * The DbUnit Database Testing Framework
 * Copyright (C)2002-2004, DbUnit.org
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

package org.dbunit.dataset;

import junit.framework.TestCase;
import org.dbunit.dataset.datatype.DataType;

/**
 * @author Manuel Laflamme
 * @version $Revision: 421 $
 * @since Feb 17, 2002
 */
public class DefaultTableMetaDataTest extends TestCase
{
    public DefaultTableMetaDataTest(String s)
    {
        super(s);
    }

    protected ITableMetaData createMetaData(String tableName,
            Column[] columns, String[] keyNames) throws Exception
    {
        return new DefaultTableMetaData(
                        tableName, columns, keyNames);
    }

    public void testGetTableName() throws Exception
    {
        String expected = "tableName";
        ITableMetaData metaData = createMetaData(expected, null, null);

        assertEquals("table name", expected, metaData.getTableName());
    }

    public void testGetColumns() throws Exception
    {
        Column[] columns = new Column[]{
            new Column("numberColumn", DataType.NUMERIC),
            new Column("stringColumn", DataType.VARCHAR),
            new Column("booleanColumn", DataType.BOOLEAN),
        };

        ITableMetaData metaData = createMetaData("toto", columns, null);

        assertEquals("column count", columns.length, metaData.getColumns().length);
        for (int i = 0; i < columns.length; i++)
        {
            Column column = columns[i];
            assertEquals("columns" + i, column, metaData.getColumns()[i]);
        }
        assertEquals("key count", 0, metaData.getPrimaryKeys().length);
    }

    public void testGetPrimaryKeys() throws Exception
    {
        Column[] columns = new Column[]{
            new Column("numberColumn", DataType.NUMERIC),
            new Column("stringColumn", DataType.VARCHAR),
            new Column("booleanColumn", DataType.BOOLEAN),
        };
        String[] keyNames = new String[]{"booleanColumn", "numberColumn"};


        ITableMetaData metaData = createMetaData("toto", columns, keyNames);

        Column[] keys = metaData.getPrimaryKeys();
        assertEquals("key count", keyNames.length, keys.length);
        for (int i = 0; i < keys.length; i++)
        {
            assertEquals("key name", keyNames[i], keys[i].getColumnName());
        }
    }

    public void testGetPrimaryKeysColumnDontMatch() throws Exception
    {
        Column[] columns = new Column[]{
            new Column("numberColumn", DataType.NUMERIC),
            new Column("stringColumn", DataType.VARCHAR),
            new Column("booleanColumn", DataType.BOOLEAN),
        };
        String[] keyNames = new String[]{"invalidColumn"};


        ITableMetaData metaData = createMetaData("toto", columns, keyNames);

        Column[] keys = metaData.getPrimaryKeys();
        assertEquals("key count", 0, keys.length);
    }
}