criteriatest.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 java.util.Calendar;
import java.util.Date;
import java.util.List;

import org.apache.commons.configuration.BaseConfiguration;
import org.apache.commons.configuration.Configuration;

import org.apache.torque.BaseTestCase;
import org.apache.torque.TorqueException;
import org.apache.torque.adapter.DBFactory;

/**
 * Test class for Criteria.
 *
 * @author <a href="mailto:[e-mail]">Christopher Elkins</a>
 * @author <a href="mailto:[e-mail]">Sam Joseph</a>
 * @version $Id: CriteriaTest.java,v 1.24 2005/05/08 15:56:49 tfischer Exp $
 */
public class CriteriaTest extends BaseTestCase
{

    /** The criteria to use in the test. */
    private Criteria c;

    /**
     * Creates a new instance.
     *
     * @param name the name of the test to run
     */
    public CriteriaTest(String name)
    {
        super(name);
    }

    /**
     * Initializes the criteria.
     */
    public void setUp()
    {
        super.setUp();
        c = new Criteria();
    }

    /**
     * Test basic adding of strings.
     */
    public void testAddString()
    {
        final String table = "myTable";
        final String column = "myColumn";
        final String value = "myValue";

        // Add the string
        c.add(table, column, (Object) value);

        // Verify that the key exists
        assertTrue(c.containsKey(table, column));

        // Verify that what we get out is what we put in
        assertTrue(c.getString(table, column).equals(value));
    }

    /**
     * test various properties of Criterion and nested criterion
     */
    public void testNestedCriterion()
    {
        final String table2 = "myTable2";
        final String column2 = "myColumn2";
        final String value2 = "myValue2";

        final String table3 = "myTable3";
        final String column3 = "myColumn3";
        final String value3 = "myValue3";

        final String table4 = "myTable4";
        final String column4 = "myColumn4";
        final String value4 = "myValue4";

        final String table5 = "myTable5";
        final String column5 = "myColumn5";
        final String value5 = "myValue5";

        Criteria.Criterion crit2 =
            c.getNewCriterion(table2, column2, (Object) value2, Criteria.EQUAL);
        Criteria.Criterion crit3 =
            c.getNewCriterion(table3, column3, (Object) value3, Criteria.EQUAL);
        Criteria.Criterion crit4 =
            c.getNewCriterion(table4, column4, (Object) value4, Criteria.EQUAL);
        Criteria.Criterion crit5 =
            c.getNewCriterion(table5, column5, (Object) value5, Criteria.EQUAL);

        crit2.and(crit3).or(crit4.and(crit5));
        String expect =
            "((myTable2.myColumn2='myValue2' "
                + "AND myTable3.myColumn3='myValue3') "
            + "OR (myTable4.myColumn4='myValue4' "
                + "AND myTable5.myColumn5='myValue5'))";
        String result = crit2.toString();
        assertEquals(expect, result);

        Criteria.Criterion crit6 =
            c.getNewCriterion(table2, column2, (Object) value2, Criteria.EQUAL);
        Criteria.Criterion crit7 =
            c.getNewCriterion(table3, column3, (Object) value3, Criteria.EQUAL);
        Criteria.Criterion crit8 =
            c.getNewCriterion(table4, column4, (Object) value4, Criteria.EQUAL);
        Criteria.Criterion crit9 =
            c.getNewCriterion(table5, column5, (Object) value5, Criteria.EQUAL);

        crit6.and(crit7).or(crit8).and(crit9);
        expect =
            "(((myTable2.myColumn2='myValue2' "
                    + "AND myTable3.myColumn3='myValue3') "
                + "OR myTable4.myColumn4='myValue4') "
                    + "AND myTable5.myColumn5='myValue5')";
        result = crit6.toString();
        assertEquals(expect, result);

        // should make sure we have tests for all possibilities

        Criteria.Criterion[] crita = crit2.getAttachedCriterion();

        assertEquals(crit2, crita[0]);
        assertEquals(crit3, crita[1]);
        assertEquals(crit4, crita[2]);
        assertEquals(crit5, crita[3]);

        List tables = crit2.getAllTables();

        assertEquals(crit2.getTable(), tables.get(0));
        assertEquals(crit3.getTable(), tables.get(1));
        assertEquals(crit4.getTable(), tables.get(2));
        assertEquals(crit5.getTable(), tables.get(3));

        // simple confirmations that equality operations work
        assertTrue(crit2.hashCode() == crit2.hashCode());
        assertEquals(crit2.toString(), crit2.toString());
    }

    /**
     * Tests &lt;= and =&gt;.
     */
    public void testBetweenCriterion()
    {
        Criteria.Criterion cn1 =
            c.getNewCriterion(
                "INVOICE.COST",
                new Integer(1000),
                Criteria.GREATER_EQUAL);
        Criteria.Criterion cn2 =
            c.getNewCriterion(
                "INVOICE.COST",
                new Integer(5000),
                Criteria.LESS_EQUAL);
        c.add(cn1.and(cn2));
        String expect =
            "SELECT  FROM INVOICE WHERE "
            + "(INVOICE.COST>=1000 AND INVOICE.COST<=5000)";
        String result = null;
        try
        {
            result = BasePeer.createQueryString(c);
        }
        catch (TorqueException e)
        {
            fail("TorqueException thrown in BasePeer.createQueryString()");
        }

        assertEquals(expect, result);
    }

    /**
     * Verify that AND and OR criterion are nested correctly.
     */
    public void testPrecedence()
    {
        Criteria.Criterion cn1 =
            c.getNewCriterion("INVOICE.COST", "1000", Criteria.GREATER_EQUAL);
        Criteria.Criterion cn2 =
            c.getNewCriterion("INVOICE.COST", "2000", Criteria.LESS_EQUAL);
        Criteria.Criterion cn3 =
            c.getNewCriterion("INVOICE.COST", "8000", Criteria.GREATER_EQUAL);
        Criteria.Criterion cn4 =
            c.getNewCriterion("INVOICE.COST", "9000", Criteria.LESS_EQUAL);
        c.add(cn1.and(cn2));
        c.or(cn3.and(cn4));

        String expect =
            "SELECT  FROM INVOICE WHERE "
            + "((INVOICE.COST>='1000' AND INVOICE.COST<='2000') "
            + "OR (INVOICE.COST>='8000' AND INVOICE.COST<='9000'))";

        String result = null;
        try
        {
            result = BasePeer.createQueryString(c);
        }
        catch (TorqueException e)
        {
            fail("TorqueException thrown in BasePeer.createQueryString()");
        }

        assertEquals(expect, result);
    }

    /**
     * Test Criterion.setIgnoreCase().
     * As the output is db specific the test just prints the result to
     * System.out
     */
    public void testCriterionIgnoreCase()
    {
        Criteria myCriteria = new Criteria();

        Criteria.Criterion expected = myCriteria.getNewCriterion(
                "TABLE.COLUMN", (Object)"FoObAr", Criteria.LIKE);
        Criteria.Criterion result = expected.setIgnoreCase(true);
        assertEquals("Criterion mis-match after calling setIgnoreCase(true)",
                     expected.toString(), result.toString());
    }

    /**
     * Test that true is evaluated correctly.
     */
    public void testBoolean()
    {
        Criteria c = new Criteria().add("TABLE.COLUMN", true);

        String expect = "SELECT  FROM TABLE WHERE TABLE.COLUMN=1";