SealableTestCase.java

/*
 * 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.
        }
    }
}