Smack/test/org/jivesoftware/smack/filter/PacketTypeFilterTest.java

/**
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 *
 * Copyright (C) 2002-2003 Jive Software. All rights reserved.
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 * The Jive Software License (based on Apache Software License, Version 1.1)
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 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    distribution.
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 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by
 *        Jive Software (http://www.jivesoftware.com)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Smack" and "Jive Software" must not be used to
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 * 5. Products derived from this software may not be called "Smack",
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 * ====================================================================
 */

package org.jivesoftware.smack.filter;

import junit.framework.TestCase;
import org.jivesoftware.smack.packet.*;

/**
 * Test cases for the PacketTypeFilter class.
 */
public class PacketTypeFilterTest extends TestCase {

    private class InnerClassDummy {
        public class DummyPacket extends Packet {
            public String toXML() {
                return null;
            }
        }
        public DummyPacket getInnerInstance() {
            return new DummyPacket();
        }
    }

    private static class StaticInnerClassDummy {
        public static class StaticDummyPacket extends Packet {
            public String toXML() {
                return null;
            }
        }
        public static StaticDummyPacket getInnerInstance() {
            return new StaticDummyPacket();
        }
    }

    /**
     * Test case for the constructor of PacketTypeFilter objects.
     */
    public void testConstructor() {
        // We dont need to test this since PacketTypeFilter(Class<? extends Packet> packetType) only excepts Packets
        // Test a class that is not a subclass of Packet
        // try {
        // new PacketTypeFilter(Dummy.class);
        // fail("Parameter must be a subclass of Packet.");
        // }
        // catch (IllegalArgumentException e) {}

        // Test a class that is a subclass of Packet
        try {
            new PacketTypeFilter(MockPacket.class);
        }
        catch (IllegalArgumentException e) {
            fail();
        }

        // Test another class which is a subclass of Packet
        try {
            new PacketTypeFilter(IQ.class);
        }
        catch (IllegalArgumentException e) {
            fail();
        }

        // Test an internal class which is a subclass of Packet
        try {
            new PacketTypeFilter(InnerClassDummy.DummyPacket.class);
        }
        catch (IllegalArgumentException e) {
            fail();
        }

        // Test an internal static class which is a static subclass of Packet
        try {
            new PacketTypeFilter(StaticInnerClassDummy.StaticDummyPacket.class);
        }
        catch (IllegalArgumentException e) {
            fail();
        }
    }

    /**
     * Test case to test the accept() method of PacketTypeFilter objects.
     */
    public void testAccept() {
        Packet packet = new MockPacket();
        PacketTypeFilter filter = new PacketTypeFilter(MockPacket.class);
        assertTrue(filter.accept(packet));

        packet = (new InnerClassDummy()).getInnerInstance();
        filter = new PacketTypeFilter(InnerClassDummy.DummyPacket.class);
        assertTrue(filter.accept(packet));

        packet = StaticInnerClassDummy.getInnerInstance();
        filter = new PacketTypeFilter(StaticInnerClassDummy.StaticDummyPacket.class);
        assertTrue(filter.accept(packet));
    }
}