/*
* 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.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.nullValue;
import static org.junit.Assert.assertThat;
import org.apache.wicket.core.util.lang.WicketObjects;
import org.apache.wicket.model.lambda.Person;
import org.junit.Test;
/**
* Tests for {@link LambdaModel}
*/
@SuppressWarnings("javadoc")
public class LambdaModelTest
{
@Test
public void methodReference()
{
Person person = new Person();
IModel<String> personNameModel = LambdaModel.of(person::getName, person::setName);
check(personNameModel);
}
@Test
public void explicitLambdas()
{
Person person = new Person();
IModel<String> personNameModel = LambdaModel.<String>of(
() -> person.getName(),
(name) -> person.setName(name));
check(personNameModel);
}
@Test
public void targetModel()
{
IModel<Person> target = Model.of(new Person());
IModel<String> personNameModel = LambdaModel.of(target, Person::getName, Person::setName);
check(personNameModel);
}
@Test
public void targetModelNull()
{
IModel<Person> target = Model.of((Person)null);
IModel<String> personNameModel = LambdaModel.of(target, Person::getName, Person::setName);
personNameModel.setObject("new name");
assertThat(personNameModel.getObject(), is(nullValue()));
}
@Test(expected=UnsupportedOperationException.class)
public void targetReadOnly()
{
IModel<Person> target = Model.of(new Person());
IModel<String> personNameModel = LambdaModel.of(target, Person::getName);
check(personNameModel);
}
private void check(IModel<String> personNameModel)
{
assertThat(personNameModel.getObject(), is(nullValue()));
final String personName = "new name";
personNameModel.setObject(personName);
assertThat(personNameModel.getObject(), is(personName));
serialize(personNameModel, personName);
}
private void serialize(IModel<String> personNameModel, String personName)
{
final IModel<String> clone = WicketObjects.cloneObject(personNameModel);
assertThat(clone, is(instanceOf(LambdaModel.class)));
assertThat(clone.getObject(), is(personName));
}
}