dynapropertyutilstestcase.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.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

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


/**
 * Test accessing DynaBeans transparently via PropertyUtils.
 *
 * @author Craig R. McClanahan
 * @version $Revision: 471138 $ $Date: 2006-11-04 08:06:03 +0000 (Sat, 04 Nov 2006) $
 */

public class DynaPropertyUtilsTestCase extends TestCase {


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


    /**
     * The basic test bean for each test.
     */
    protected DynaBean bean = 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 nested bean pointed at by the "nested" property.
     */
    protected TestBean nested = null;


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


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

        super(name);

    }


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


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

        // Instantiate a new DynaBean instance
        DynaClass dynaClass = createDynaClass();
        bean = dynaClass.newInstance();

        // Initialize the DynaBean's property values (like TestBean)
        bean.set("booleanProperty", new Boolean(true));
        bean.set("booleanSecond", new Boolean(true));
        bean.set("doubleProperty", new Double(321.0));
        bean.set("floatProperty", new Float((float) 123.0));
        int intArray[] = { 0, 10, 20, 30, 40 };
        bean.set("intArray", intArray);
        int intIndexed[] = { 0, 10, 20, 30, 40 };
        bean.set("intIndexed", intIndexed);
        bean.set("intProperty", new Integer(123));
        List listIndexed = new ArrayList();
        listIndexed.add("String 0");
        listIndexed.add("String 1");
        listIndexed.add("String 2");
        listIndexed.add("String 3");
        listIndexed.add("String 4");
        bean.set("listIndexed", listIndexed);
        bean.set("longProperty", new Long(321));
        HashMap mapProperty = new HashMap();
        mapProperty.put("First Key", "First Value");
        mapProperty.put("Second Key", "Second Value");
        bean.set("mapProperty", mapProperty);
        HashMap mappedObjects = new HashMap();
        mappedObjects.put("First Key", "First Value");
        mappedObjects.put("Second Key", "Second Value");
        bean.set("mappedObjects", mappedObjects);
        HashMap mappedProperty = new HashMap();
        mappedProperty.put("First Key", "First Value");
        mappedProperty.put("Second Key", "Second Value");
        bean.set("mappedProperty", mappedProperty);
        HashMap mappedIntProperty = new HashMap();
        mappedIntProperty.put("One", new Integer(1));
        mappedIntProperty.put("Two", new Integer(2));
        bean.set("mappedIntProperty", mappedIntProperty);
        nested = new TestBean();
        bean.set("nested", nested);
        // Property "nullProperty" is not initialized, so it should return null
        bean.set("shortProperty", new Short((short) 987));
        String stringArray[] =
                { "String 0", "String 1", "String 2", "String 3", "String 4" };
        bean.set("stringArray", stringArray);
        String stringIndexed[] =
                { "String 0", "String 1", "String 2", "String 3", "String 4" };
        bean.set("stringIndexed", stringIndexed);
        bean.set("stringProperty", "This is a string");

    }


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

        return (new TestSuite(DynaPropertyUtilsTestCase.class));

    }


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

        bean = null;
        nested = 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,
                     ((Boolean) bean.get("booleanProperty")).booleanValue());
        assertEquals("doubleProperty", 333.0,
                     ((Double) bean.get("doubleProperty")).doubleValue(),
                     0.005);
        assertEquals("floatProperty", (float) 222.0,
                     ((Float) bean.get("floatProperty")).floatValue(),
                     (float) 0.005);
        assertEquals("intProperty", 111,
                     ((Integer) bean.get("intProperty")).intValue());
        assertEquals("longProperty", 444,
                     ((Long) bean.get("longProperty")).longValue());
        assertEquals("shortProperty", (short) 555,
                     ((Short) bean.get("shortProperty")).shortValue());
        assertEquals("stringProperty", "New String Property",
                     (String) bean.get("stringProperty"));
                     
        // Indexed Properties
        String dupProperty[] = (String[]) bean.get("dupProperty");
        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[] = (int[]) bean.get("intArray");
        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 getIndexedProperty invalid arguments.
     */
    public void testGetIndexedArguments() {

        // Use explicit index argument

        try {
            PropertyUtils.getIndexedProperty(null, "intArray", 0);
            fail("Should throw IllegalArgumentException 1");
        } catch (IllegalArgumentException e) {
            // Expected response
        } catch (Throwable t) {
            fail("Threw " + t + " instead of IllegalArgumentException 1");
        }

        try {
            PropertyUtils.getIndexedProperty(bean, null, 0);
            fail("Should throw IllegalArgumentException 2");
        } catch (IllegalArgumentException e) {
            // Expected response
        } catch (Throwable t) {
            fail("Threw " + t + " instead of IllegalArgumentException 2");
        }

        // Use index expression

        try {
            PropertyUtils.getIndexedProperty(null,
                    "intArray[0]");
            fail("Should throw IllegalArgumentException 3");
        } catch (IllegalArgumentException e) {
            // Expected response
        } catch (Throwable t) {
            fail("Threw " + t + " instead of IllegalArgumentException 3");
        }

        try {
            PropertyUtils.getIndexedProperty(bean, "[0]");
            fail("Should throw NoSuchMethodException 4");
        } catch (NoSuchMethodException e) {
            // Expected response
        } catch (Throwable t) {
            fail("Threw " + t + " instead of NoSuchMethodException 4");
        }

        try {
            PropertyUtils.getIndexedProperty(bean, "intArray");
            fail("Should throw IllegalArgumentException 5");
        } catch (IllegalArgumentException e) {
            // Expected response
        } catch (Throwable t) {
            fail("Threw " + t + " instead of IllegalArgumentException 5");
        }

        // Use explicit index argument

        try {
            PropertyUtils.getIndexedProperty(null, "intIndexed", 0);
            fail("Should throw IllegalArgumentException 1");
        } catch (IllegalArgumentException e) {
            // Expected response
        } catch (Throwable t) {
            fail("Threw " + t + " instead of IllegalArgumentException 1");
        }

        try {
            PropertyUtils.getIndexedProperty(bean, null, 0);
            fail("Should throw IllegalArgumentException 2");
        } catch (IllegalArgumentException e) {
            // Expected response
        } catch (Throwable t) {
            fail("Threw " + t + " instead of IllegalArgumentException 2");
        }

        // Use index expression

        try {
            PropertyUtils.getIndexedProperty(null,
                    "intIndexed[0]");
            fail("Should throw IllegalArgumentException 3");
        } catch (IllegalArgumentException e) {
            // Expected response
        } catch (Throwable t) {