TestSerialization.java

/*
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.exoplatform.commons.serialization;

import java.io.ByteArrayInputStream;
import java.io.NotSerializableException;

import org.exoplatform.commons.serialization.model.TypeDomain;
import org.exoplatform.component.test.AbstractGateInTest;

/**
 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a>
 * @version $Revision$
 */
public class TestSerialization extends AbstractGateInTest {

    public void testState() throws Exception {
        TypeDomain domain = new TypeDomain();
        domain.addTypeModel(A.class);
        A a = new A();
        a.a = "foo";
        a.b = 2;
        a.c = true;
        SerializationContext context = new SerializationContext(domain);
        a = context.clone(a);
        assertEquals("foo", a.a);
        assertEquals(2, a.b);
        assertEquals(true, a.c);
    }

    public void testMultipleReference1() throws Exception {
        TypeDomain domain = new TypeDomain();
        domain.addTypeModel(B.class);
        B b = new B();
        b.ref = new B(b);
        SerializationContext context = new SerializationContext(domain);
        b = context.clone(b);
        assertNotNull(b.ref);
        assertSame(b, b.ref.ref);
    }

    public void testStaticField() throws Exception {
        TypeDomain domain = new TypeDomain();
        domain.addTypeModel(D.class);
        D d = new D();
        d.b = "bar";
        SerializationContext context = new SerializationContext(domain);
        byte[] bytes = context.write(d);
        D.a = "foo";
        d = (D) context.read(bytes);
        assertEquals("foo", D.a);
        assertEquals("bar", d.b);
    }

    public void testMultipleReference2() throws Exception {
        TypeDomain domain = new TypeDomain();
        domain.addTypeModel(E2.class);
        E2 e = new E2();
        e.left = new E2();
        ((E2) e.left).left = new E1();
        ((E2) e.left).right = new E1();
        e.right = new E2();
        ((E2) e.right).left = ((E2) e.left).left;
        ((E2) e.right).right = ((E2) e.left).right;
        SerializationContext context = new SerializationContext(domain);
        e = context.clone(e);
        assertSame(((E2) e.left).left, ((E2) e.right).left);
        assertSame(((E2) e.left).right, ((E2) e.right).right);
    }

    public void testListOfReplicatable() throws Exception {
        TypeDomain domain = new TypeDomain();
        domain.addTypeModel(F.class);

        //
        F f1 = new F();
        F f2 = new F();
        f1.children.add(f2);
        f2.parent = f1;

        //
        SerializationContext context = new SerializationContext(domain);
        f1 = context.clone(f1);

        //
        assertNotNull(f1.children);
        assertNull(f1.parent);
        assertEquals(1, f1.children.size());
        assertNotNull(f1.children.get(0));
        assertSame(f1, f1.children.get(0).parent);
    }

    public void testNotSerializable() throws Exception {
        TypeDomain domain = new TypeDomain();
        domain.addTypeModel(ByteArrayInputStream.class);

        SerializationContext context = new SerializationContext(domain);
        try {
            context.write(new ByteArrayInputStream(new byte[0]));
            fail();
        } catch (NotSerializableException e) {
        }
    }

    public void testTransientField() throws Exception {
        TypeDomain domain = new TypeDomain();
        domain.addTypeModel(G.class);
        SerializationContext context = new SerializationContext(domain);
        G g = new G();
        g.a = "foo";
        g.b = new Thread();
        g = context.clone(g);
        assertEquals("foo", g.a);
        assertEquals(null, g.b);
    }
}