/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.wicket.model;
import static org.hamcrest.CoreMatchers.instanceOf;
import org.apache.wicket.WicketRuntimeException;
import org.apache.wicket.util.tester.WicketTestCase;
import org.junit.Ignore;
import org.junit.Test;
/**
* Test class for exercising the {@link PropertyModel}.
*
* @author dashorst
*/
public class PropertyModelTest extends WicketTestCase
{
/**
* Interface for testing the property assignment with an <code>null</code> interface property.
*/
public static interface IAddress
{
}
/**
* Abstract class for testing the property assignment with an <code>null</code> abstract class
* property.
*/
public static abstract class AbstractAddress implements IAddress
{
/** street field for assignment in property expressions. */
public String street;
}
/**
* Concrete class for testing the property assignment with an <code>null</code> concrete class
* property.
*/
public static class ConcreteAddress extends AbstractAddress
{
}
/**
* Person class for keeping the various different references for use in the test cases.
*/
public static class Person
{
/** tests a <code>null</code> interface property. */
public IAddress interfaceAddress;
/** tests a <code>null</code> abstract class property. */
public AbstractAddress abstractAddress;
/** tests a <code>null</code> concrete class property. */
public ConcreteAddress concreteAddress;
/** tests a <code>null</code> final concrete class property. */
public final ConcreteAddress finalAddress = null;
}
/**
* Tests setting a value on a {@link PropertyModel} when a property is <code>null</code> and an
* interface type. This should end in an exception because Wicket can't decide what to
* instantiate on behalf of the program.
*/
@Test
public void setWithNullPathInterface()
{
Person person = new Person();
PropertyModel<String> model = new PropertyModel<String>(person, "interfaceAddress.street");
try
{
model.setObject("foo");
fail("Expected exception");
}
catch (WicketRuntimeException wre)
{
// ok
}
}
/**
* Tests setting a value on a {@link PropertyModel} when a property is <code>null</code> and an
* abstract class type. This should end in an exception because Wicket can't decide what to
* instantiate on behalf of the program.
*/
@Test(expected = WicketRuntimeException.class)
public void setWithNullPathAbstract()
{
Person person = new Person();
PropertyModel<String> model = new PropertyModel<String>(person, "abstractAddress.street");
model.setObject("foo");
}
/**
* Tests setting a value on a {@link PropertyModel} when a property is <code>null</code> and a
* concrete type. This should work because Wicket can decide what to instantiate on behalf of
* the program: the concrete class.
*/
@Test
public void setWithNullPathConcrete()
{
Person person = new Person();
PropertyModel<String> model = new PropertyModel<String>(person, "concreteAddress.street");
model.setObject("foo");
assertNotNull("concreteAddress", person.concreteAddress);
assertThat(person.concreteAddress, instanceOf(ConcreteAddress.class));
assertEquals("foo", person.concreteAddress.street);
}
/**
* Tests setting a value on a null, final property using a {@link PropertyModel}. This test
* should pass when run using JDK 1.5 or newer.
*/
@Test
public void setWithNullPathFinalJdk15()
{
Person person = new Person();
PropertyModel<String> model = new PropertyModel<String>(person, "finalAddress.street");
model.setObject("foo");
assertThat(person.finalAddress, instanceOf(ConcreteAddress.class));
assertEquals("foo", person.finalAddress.street);
}
}