// Copyright 2007 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.tapestry.internal.services;
import java.io.Serializable;
import org.apache.tapestry.PropertyConduit;
import org.apache.tapestry.internal.bindings.PropBindingFactoryTest;
import org.apache.tapestry.internal.test.InternalBaseTestCase;
import org.apache.tapestry.ioc.internal.services.ClassFactoryImpl;
import org.apache.tapestry.ioc.services.ClassFab;
import org.apache.tapestry.ioc.services.ClassFactory;
import org.apache.tapestry.services.PropertyConduitSource;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
/**
* Most of the testing occurs inside {@link PropBindingFactoryTest} (due to historical reasons).
*/
public class PropertyConduitSourceImplTest extends InternalBaseTestCase
{
private PropertyConduitSource _source;
@BeforeClass
public void setup()
{
_source = getObject(PropertyConduitSource.class, null);
}
@AfterClass
public void cleanup()
{
_source = null;
}
@Test
public void question_dot_operator_for_object_type()
{
PropertyConduit normal = _source.create(CompositeBean.class, "simple.firstName");
PropertyConduit smart = _source.create(CompositeBean.class, "simple?.firstName");
CompositeBean bean = new CompositeBean();
bean.setSimple(null);
try
{
normal.get(bean);
unreachable();
}
catch (NullPointerException ex)
{
// Expected.
}
assertNull(smart.get(bean));
try
{
normal.set(bean, "Howard");
unreachable();
}
catch (NullPointerException ex)
{
// Expected.
}
// This will be a no-op due to the null property in the expression
smart.set(bean, "Howard");
}
/**
* Or call this the "Hibernate" case; Hibernate creates sub-classes of entity classes in its own
* class loader to do all sorts of proxying. This trips up Javassist.
*/
@Test
public void handle_beans_from_unexpected_classloader() throws Exception
{
// First, create something that looks like a Hibernate proxy.
ClassFactory factory = new ClassFactoryImpl();
Class clazz = SimpleBean.class;
ClassFab cf = factory.newClass(clazz.getName() + "$$Proxy", clazz);
cf.addInterface(Serializable.class);
Class proxyClass = cf.createClass();
SimpleBean simple = (SimpleBean) proxyClass.newInstance();
assertTrue(simple instanceof Serializable);
simple.setFirstName("Howard");
PropertyConduit conduit = _source.create(proxyClass, "firstName");
assertEquals(conduit.get(simple), "Howard");
}
}