Commons Attributes example source code file (SealableTestCase.java)

This example Commons Attributes source code file (SealableTestCase.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Commons Attributes tags/keywords

attribute, attribute, classwithsealable, defaultsealable, exception, exception, illegalstateexception, io, net, network, reflection, samplesealableattribute, samplesealableattribute, sealabletestcase, sealedattributeexception, sealedattributeexception, testcase, util

The Commons Attributes SealableTestCase.java source code

/*
 * Copyright 2003-2004 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.
 */
package org.apache.commons.attributes.test;

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Constructor;
import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Collection;
import java.util.Iterator;
import org.apache.commons.attributes.Attributes;
import org.apache.commons.attributes.AttributeIndex;
import org.apache.commons.attributes.DefaultSealable;
import org.apache.commons.attributes.SealedAttributeException;
import junit.framework.TestCase;

public class SealableTestCase extends TestCase {
    
    /**
     * A sample attribute with bean-like properties. Used to test the 
     * named parameter syntax.
     */
    public static class SampleSealableAttribute extends DefaultSealable {
        
        private int number;
        
        public SampleSealableAttribute () {
        }
        
        public int getNumber () {
            return number;
        }
        
        public void setNumber (int number) {
            checkSealed ();
            this.number = number;
        }
    }
    
    /** @@SealableTestCase.SampleSealableAttribute (number=1) */
    public static class ClassWithSealable {}
    
    public void testSealable () throws Exception {
        SampleSealableAttribute attribute = (SampleSealableAttribute) Attributes.getAttribute (ClassWithSealable.class, SampleSealableAttribute.class);
        
        try {
            attribute.setNumber (11);
            fail ("Attribute should be sealed!");
        } catch (IllegalStateException ise) {
            // -- OK, attribute should be sealed.
        }
        
        assertEquals (1, attribute.getNumber ());
    }
    
    public void testSealableExceptionType () throws Exception {
        SampleSealableAttribute attribute = (SampleSealableAttribute) Attributes.getAttribute (ClassWithSealable.class, SampleSealableAttribute.class);
        
        try {
            attribute.setNumber (11);
            fail ("Attribute should be sealed!");
        } catch (SealedAttributeException ise) {
            // -- OK, attribute should be sealed and throw a SealedAttributeException.
        }
    }
}