largeselecttest.java

另外一种持久性o/m软件

package org.apache.torque.util;

/*
 * Copyright 2001-2004 The Apache Software Foundation.
 *
 * Licensed 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 org.apache.torque.BaseRuntimeTestCase;
import org.apache.torque.TorqueException;
import org.apache.torque.test.Author;
import org.apache.torque.test.AuthorPeer;

import java.util.List;

/**
 * Test code for LargeSelect.
 *
 * @author <a href="mailto:[e-mail]">Scott Eade</a>
 * @version $Id: LargeSelectTest.java,v 1.6 2005/03/19 06:25:27 tfischer Exp $
 */
public class LargeSelectTest extends BaseRuntimeTestCase
{
    private static final int TEST_PAGE_SIZE = 9;
    private static final int TEST_PAGES = 9;
    private static final int TEST_ROWS = TEST_PAGE_SIZE * TEST_PAGES;
    private static final String LARGE_SELECT_AUTHOR = "LargeSelectAuthor";
    private int firstAuthorId = -1;

    private Criteria criteria;

    /**
     * Creates a new instance.
     */
    public LargeSelectTest(String name)
    {
        super(name);
    }

    public void setUp()
    {
        super.setUp();

        // Clean up any previous failures
        tearDown();

        // Create some test data
        for (int i = 0; i < TEST_ROWS; i++)
        {
            Author author = new Author();
            author.setName(LARGE_SELECT_AUTHOR);
            try
            {
                author.save();
            }
            catch (Exception e)
            {
                fail("Cannot create test data for LargeSelectTest.");
            }
            if (-1 == firstAuthorId)
            {
                firstAuthorId = author.getAuthorId();
            }
        }
        // Set up the standard criteria for the test.
        criteria = new Criteria();
        criteria.add(AuthorPeer.NAME, LARGE_SELECT_AUTHOR);
    }

    public void tearDown()
    {
        // Delete the test data
        criteria = new Criteria();
        criteria.add(AuthorPeer.NAME, LARGE_SELECT_AUTHOR);
        try
        {
            AuthorPeer.doDelete(criteria);
        }
        catch (TorqueException e)
        {
            fail("Cannot delete test data for LargeSelectTest.");
        }
        criteria = null;
    }

    /**
     * Test the criteria provides the correct number of rows.
     */
    public void testCriteria() throws TorqueException
    {
        List result = null;
        result = AuthorPeer.doSelect(criteria);
        assertEquals("Selected rows", TEST_ROWS, result.size());
    }

    /**
     * Test an invalid criteria - includes a limit.
     */
    public void testBadCriteria11() throws TorqueException
    {
        criteria.setLimit(1);
        try
        {
            new LargeSelect(criteria, TEST_PAGE_SIZE,
                    "org.apache.torque.test.AuthorPeer");
        }
        catch (IllegalArgumentException success)
        {
            // Do nothing
        }
    }

    /**
     * Test an invalid criteria - includes an offset.
     */
    public void testBadCriteria12() throws TorqueException
    {
        criteria.setOffset(1);
        try
        {
            new LargeSelect(criteria, TEST_PAGE_SIZE,
                    "org.apache.torque.test.AuthorPeer");
        }
        catch (IllegalArgumentException success)
        {
            // Do nothing
        }
    }

    /**
     * Test an invalid page size.
     */
    public void testBadPageSize() throws TorqueException
    {
        try
        {
            new LargeSelect(criteria, 0, "org.apache.torque.test.AuthorPeer");
        }
        catch (IllegalArgumentException success)
        {
            // Do nothing
        }
    }

    /**
     * Test an invalid memory limit.
     */
    public void testBadMemoryLimit() throws TorqueException
    {
        try
        {
            new LargeSelect(criteria, TEST_PAGE_SIZE, 0,
                    "org.apache.torque.test.AuthorPeer");
        }
        catch (IllegalArgumentException success)
        {
            // Do nothing
        }
    }

    /**
     * Test an invalid builder class (doesn't provide necessary methods).
     */
    public void testBadClass()
    {
        try
        {
            new LargeSelect(criteria, TEST_PAGE_SIZE,
                    "org.apache.torque.test.Author");
        }
        catch (IllegalArgumentException success)
        {
        }
    }

    /**
     * Test a couple of static methods.
     */
    public void testStaticMethods() throws TorqueException
    {
        assertEquals("Memory page limit", 5, LargeSelect.getMemoryPageLimit());
        LargeSelect.setMemoryPageLimit(10);
        assertEquals("Memory page limit", 10, LargeSelect.getMemoryPageLimit());
        LargeSelect.setMemoryPageLimit(LargeSelect.DEFAULT_MEMORY_LIMIT_PAGES);
        assertEquals("Memory page limit", 5, LargeSelect.getMemoryPageLimit());

        assertEquals("More indicator", "&gt;", LargeSelect.getMoreIndicator());
        String newMoreIndicator = "more than";
        LargeSelect.setMoreIndicator(newMoreIndicator);
        assertEquals("More indicator", newMoreIndicator,
                LargeSelect.getMoreIndicator());
        LargeSelect.setMoreIndicator(LargeSelect.DEFAULT_MORE_INDICATOR);
        assertEquals("More indicator", "&gt;", LargeSelect.getMoreIndicator());
    }

    /**
     * Test a bunch of different methods when everything is set up correctly.
     */
    public void testLargeSelect() throws TorqueException
    {
        LargeSelect ls = new LargeSelect(criteria, TEST_PAGE_SIZE,
                "org.apache.torque.test.AuthorPeer");

        assertEquals("Page size", TEST_PAGE_SIZE, ls.getPageSize());
        assertTrue("Paginated", ls.getPaginated());


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