propertyutilstestcase.java

APACHE 公司出的java bean 工具包

/*
 * 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.
 */ 


package org.apache.commons.beanutils;


import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

import org.apache.commons.beanutils.priv.PrivateBeanFactory;
import org.apache.commons.beanutils.priv.PrivateDirect;

import junit.framework.TestCase;
import junit.framework.Test;
import junit.framework.TestSuite;


/**
 * <p>Test Case for the PropertyUtils class.  The majority of these tests use
 * instances of the TestBean class, so be sure to update the tests if you
 * change the characteristics of that class.</p>
 *
 * <p>So far, this test case has tests for the following methods of the
 * <code>PropertyUtils</code> class:</p>
 * <ul>
 * <li>getIndexedProperty(Object,String)</li>
 * <li>getIndexedProperty(Object,String,int)</li>
 * <li>getMappedProperty(Object,String)</li>
 * <li>getMappedProperty(Object,String,String</li>
 * <li>getNestedProperty(Object,String)</li>
 * <li>getPropertyDescriptor(Object,String)</li>
 * <li>getPropertyDescriptors(Object)</li>
 * <li>getPropertyType(Object,String)</li>
 * <li>getSimpleProperty(Object,String)</li>
 * <li>setIndexedProperty(Object,String,Object)</li>
 * <li>setIndexedProperty(Object,String,String,Object)</li>
 * <li>setMappedProperty(Object,String,Object)</li>
 * <li>setMappedProperty(Object,String,String,Object)</li>
 * <li>setNestedProperty(Object,String,Object)</li>
 * <li>setSimpleProperty(Object,String,Object)</li>
 * </ul>
 *
 * @author Craig R. McClanahan
 * @author Jan Sorensen
 * @version $Revision: 555184 $ $Date: 2007-07-11 07:25:35 +0100 (Wed, 11 Jul 2007) $
 */

public class PropertyUtilsTestCase extends TestCase {


    // ---------------------------------------------------- Instance Variables


    /**
     * The fully qualified class name of our private directly
     * implemented interface.
     */
    private static final String PRIVATE_DIRECT_CLASS =
            "org.apache.commons.beanutils.priv.PrivateDirect";


    /**
     * The fully qualified class name of our private indirectly
     * implemented interface.
     */
    private static final String PRIVATE_INDIRECT_CLASS =
            "org.apache.commons.beanutils.priv.PrivateIndirect";


    /**
     * The fully qualified class name of our test bean class.
     */
    private static final String TEST_BEAN_CLASS =
            "org.apache.commons.beanutils.TestBean";


    /**
     * The basic test bean for each test.
     */
    protected TestBean bean = null;


    /**
     * The "package private subclass" test bean for each test.
     */
    protected TestBeanPackageSubclass beanPackageSubclass = null;


    /**
     * The test bean for private access tests.
     */
    protected PrivateDirect beanPrivate = null;


    /**
     * The test bean for private access tests of subclasses.
     */
    protected PrivateDirect beanPrivateSubclass = null;


    /**
     * The "public subclass" test bean for each test.
     */
    protected TestBeanPublicSubclass beanPublicSubclass = null;


    /**
     * The set of properties that should be described.
     */
    protected String describes[] =
    { "booleanProperty",
      "booleanSecond",
      "doubleProperty",
      "floatProperty",
      "intArray",
      //      "intIndexed",
      "intProperty",
      "listIndexed",
      "longProperty",
      //      "mappedObjects",
      //      "mappedProperty",
      //      "mappedIntProperty",
      "nested",
      "nullProperty",
      //      "readOnlyProperty",
      "shortProperty",
      "stringArray",
      //      "stringIndexed",
      "stringProperty"
    };


    /**
     * The set of property names we expect to have returned when calling
     * <code>getPropertyDescriptors()</code>.  You should update this list
     * when new properties are added to TestBean.
     */
    protected final static String[] properties = {
        "booleanProperty",
        "booleanSecond",
        "doubleProperty",
        "dupProperty",
        "floatProperty",
        "intArray",
        "intIndexed",
        "intProperty",
        "listIndexed",
        "longProperty",
        "nested",
        "nullProperty",
        "readOnlyProperty",
        "shortProperty",
        "stringArray",
        "stringIndexed",
        "stringProperty",
        "writeOnlyProperty",
    };


    // ---------------------------------------------------------- Constructors


    /**
     * Construct a new instance of this test case.
     *
     * @param name Name of the test case
     */
    public PropertyUtilsTestCase(String name) {

        super(name);

    }


    // -------------------------------------------------- Overall Test Methods


    /**
     * Set up instance variables required by this test case.
     */
    public void setUp() {

        bean = new TestBean();
        beanPackageSubclass = new TestBeanPackageSubclass();
        beanPrivate = PrivateBeanFactory.create();
        beanPrivateSubclass = PrivateBeanFactory.createSubclass();
        beanPublicSubclass = new TestBeanPublicSubclass();

    }


    /**
     * Return the tests included in this test suite.
     */
    public static Test suite() {

        return (new TestSuite(PropertyUtilsTestCase.class));

    }


    /**
     * Tear down instance variables required by this test case.
     */
    public void tearDown() {

        bean = null;
        beanPackageSubclass = null;
        beanPrivate = null;
        beanPrivateSubclass = null;
        beanPublicSubclass = null;

    }



    // ------------------------------------------------ Individual Test Methods


    /**
     * Test copyProperties() when the origin is a a <code>Map</code>.
     */
    public void testCopyPropertiesMap() {

        Map map = new HashMap();
        map.put("booleanProperty", Boolean.FALSE);
        map.put("doubleProperty", new Double(333.0));
        map.put("dupProperty", new String[] { "New 0", "New 1", "New 2" });
        map.put("floatProperty", new Float((float) 222.0));
        map.put("intArray", new int[] { 0, 100, 200 });
        map.put("intProperty", new Integer(111));
        map.put("longProperty", new Long(444));
        map.put("shortProperty", new Short((short) 555));
        map.put("stringProperty", "New String Property");

        try {
            PropertyUtils.copyProperties(bean, map);
        } catch (Throwable t) {
            fail("Threw " + t.toString());
        }

        // Scalar properties
        assertEquals("booleanProperty", false,
                     bean.getBooleanProperty());
        assertEquals("doubleProperty", 333.0,
                     bean.getDoubleProperty(), 0.005);
        assertEquals("floatProperty", (float) 222.0,
                     bean.getFloatProperty(), (float) 0.005);
        assertEquals("intProperty", 111,
                     bean.getIntProperty());
        assertEquals("longProperty", 444,
                     bean.getLongProperty());
        assertEquals("shortProperty", (short) 555,
                     bean.getShortProperty());
        assertEquals("stringProperty", "New String Property",
                     bean.getStringProperty());
                     
        // Indexed Properties
        String dupProperty[] = bean.getDupProperty();
        assertNotNull("dupProperty present", dupProperty);
        assertEquals("dupProperty length", 3, dupProperty.length);
        assertEquals("dupProperty[0]", "New 0", dupProperty[0]);
        assertEquals("dupProperty[1]", "New 1", dupProperty[1]);
        assertEquals("dupProperty[2]", "New 2", dupProperty[2]);
        int intArray[] = bean.getIntArray();
        assertNotNull("intArray present", intArray);
        assertEquals("intArray length", 3, intArray.length);
        assertEquals("intArray[0]", 0, intArray[0]);
        assertEquals("intArray[1]", 100, intArray[1]);
        assertEquals("intArray[2]", 200, intArray[2]);

    }


    /**
     * Test the describe() method.
     */
    public void testDescribe() {

        Map map = null;
        try {
            map = PropertyUtils.describe(bean);
        } catch (Exception e) {
            fail("Threw exception " + e);
        }

        // Verify existence of all the properties that should be present
        for (int i = 0; i < describes.length; i++) {
            assertTrue("Property '" + describes[i] + "' is present",
                       map.containsKey(describes[i]));
        }
        assertTrue("Property 'writeOnlyProperty' is not present",
                   !map.containsKey("writeOnlyProperty"));

        // Verify the values of scalar properties
        assertEquals("Value of 'booleanProperty'",
                     Boolean.TRUE, map.get("booleanProperty"));
        assertEquals("Value of 'doubleProperty'",
                     new Double(321.0), map.get("doubleProperty"));
        assertEquals("Value of 'floatProperty'",
                     new Float((float) 123.0), map.get("floatProperty"));
        assertEquals("Value of 'intProperty'",
                     new Integer(123), map.get("intProperty"));
        assertEquals("Value of 'longProperty'",
                     new Long(321), map.get("longProperty"));
        assertEquals("Value of 'shortProperty'",
                     new Short((short) 987), map.get("shortProperty"));
        assertEquals("Value of 'stringProperty'",
                     "This is a string",
                     (String) map.get("stringProperty"));

    }


    /**
     * Corner cases on getPropertyDescriptor invalid arguments.
     */
    public void testGetDescriptorArguments() {

        try {
            PropertyUtils.getPropertyDescriptor(null, "stringProperty");
            fail("Should throw IllegalArgumentException 1");
        } catch (IllegalArgumentException e) {
            // Expected response
        } catch (Throwable t) {
            fail("Threw " + t + " instead of IllegalArgumentException 1");
        }

        try {
            PropertyUtils.getPropertyDescriptor(bean, null);
            fail("Should throw IllegalArgumentException 2");
        } catch (IllegalArgumentException e) {