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/*
* Copyright 2000-2016 Vaadin Ltd.
*
* 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 com.vaadin.data;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.lang.reflect.Field;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.stream.Collectors;
import org.junit.Assert;
import org.junit.Test;
import com.vaadin.data.provider.bov.Person;
import com.vaadin.tests.data.bean.Address;
import com.vaadin.tests.data.bean.Country;
import com.vaadin.tests.data.bean.FatherAndSon;
import com.vaadin.tests.data.bean.Sex;
import com.vaadin.tests.server.ClassesSerializableTest;
public class BeanPropertySetTest {
@Test
public void testSerializeDeserialize_propertySet() throws Exception {
PropertySet<Person> originalPropertySet = BeanPropertySet
.get(Person.class);
PropertySet<Person> deserializedPropertySet = ClassesSerializableTest
.serializeAndDeserialize(originalPropertySet);
Assert.assertSame(
"Deserialized instance should be the same as the original",
originalPropertySet, deserializedPropertySet);
}
@Test
public void testSerializeDeserialize_propertySet_cacheCleared()
throws Exception {
PropertySet<Person> originalPropertySet = BeanPropertySet
.get(Person.class);
ByteArrayOutputStream bs = new ByteArrayOutputStream();
ObjectOutputStream out = new ObjectOutputStream(bs);
out.writeObject(originalPropertySet);
byte[] data = bs.toByteArray();
// Simulate deserializing into a different JVM by clearing the instance
// map
Field instancesField = BeanPropertySet.class
.getDeclaredField("instances");
instancesField.setAccessible(true);
Map<?, ?> instances = (Map<?, ?>) instancesField.get(null);
instances.clear();
ObjectInputStream in = new ObjectInputStream(
new ByteArrayInputStream(data));
PropertySet<Person> deserializedPropertySet = (PropertySet<Person>) in
.readObject();
Assert.assertSame(
"Deserialized instance should be the same as in the cache",
BeanPropertySet.get(Person.class), deserializedPropertySet);
Assert.assertNotSame(
"Deserialized instance should not be the same as the original",
originalPropertySet, deserializedPropertySet);
}
@Test
public void testSerializeDeserialize_propertyDefinition() throws Exception {
PropertyDefinition<Person, ?> definition = BeanPropertySet
.get(Person.class).getProperty("born")
.orElseThrow(RuntimeException::new);
PropertyDefinition<Person, ?> deserializedDefinition = ClassesSerializableTest
.serializeAndDeserialize(definition);
ValueProvider<Person, ?> getter = deserializedDefinition.getGetter();
Person person = new Person("Milennial", 2000);
Integer age = (Integer) getter.apply(person);
Assert.assertEquals("Deserialized definition should be functional",
Integer.valueOf(2000), age);
Assert.assertSame(
"Deserialized instance should be the same as in the cache",
BeanPropertySet.get(Person.class).getProperty("born")
.orElseThrow(RuntimeException::new),
deserializedDefinition);
}
@Test
public void testSerializeDeserialize_nestedPropertyDefinition()
throws Exception {
PropertyDefinition<com.vaadin.tests.data.bean.Person, ?> definition = BeanPropertySet
.get(com.vaadin.tests.data.bean.Person.class)
.getProperty("address.postalCode")
.orElseThrow(RuntimeException::new);
PropertyDefinition<com.vaadin.tests.data.bean.Person, ?> deserializedDefinition = ClassesSerializableTest
.serializeAndDeserialize(definition);
ValueProvider<com.vaadin.tests.data.bean.Person, ?> getter = deserializedDefinition
.getGetter();
Address address = new Address("Ruukinkatu 2-4", 20540, "Turku",
Country.FINLAND);
com.vaadin.tests.data.bean.Person person = new com.vaadin.tests.data.bean.Person(
"Jon", "Doe", "jon.doe@vaadin.com", 32, Sex.MALE, address);
Integer postalCode = (Integer) getter.apply(person);
Assert.assertEquals("Deserialized definition should be functional",
address.getPostalCode(), postalCode);
Assert.assertSame(
"Deserialized instance should be the same as in the cache",
BeanPropertySet.get(com.vaadin.tests.data.bean.Person.class)
.getProperty("address.postalCode").orElseThrow(
RuntimeException::new),
deserializedDefinition);
}
@Test
public void nestedPropertyDefinition_samePropertyNameOnMultipleLevels()
throws Exception {
PropertyDefinition<FatherAndSon, ?> definition = BeanPropertySet
.get(FatherAndSon.class).getProperty("father.father.firstName")
.orElseThrow(RuntimeException::new);
ValueProvider<FatherAndSon, ?> getter = definition.getGetter();
FatherAndSon grandFather = new FatherAndSon("Grand Old Jon", "Doe",
null, null);
FatherAndSon father = new FatherAndSon("Old Jon", "Doe", grandFather,
null);
FatherAndSon son = new FatherAndSon("Jon", "Doe", father, null);
String firstName = (String) getter.apply(son);
Assert.assertEquals(grandFather.getFirstName(), firstName);
}
@Test(expected = NullPointerException.class)
public void nestedPropertyDefinition_propertyChainBroken()
throws Exception {
PropertyDefinition<FatherAndSon, ?> definition = BeanPropertySet
.get(FatherAndSon.class).getProperty("father.firstName")
.orElseThrow(RuntimeException::new);
ValueProvider<FatherAndSon, ?> getter = definition.getGetter();
getter.apply(new FatherAndSon("Jon", "Doe", null, null));
}
@Test(expected = IllegalArgumentException.class)
public void nestedPropertyDefinition_invalidPropertyNameInChain()
throws Exception {
BeanPropertySet.get(FatherAndSon.class)
.getProperty("grandfather.firstName");
}
@Test(expected = IllegalArgumentException.class)
public void nestedPropertyDefinition_invalidPropertyNameAtChainEnd()
throws Exception {
BeanPropertySet.get(FatherAndSon.class).getProperty("father.age");
}
@Test
public void properties() {
PropertySet<Person> propertySet = BeanPropertySet.get(Person.class);
Set<String> propertyNames = propertySet.getProperties()
.map(PropertyDefinition::getName).collect(Collectors.toSet());
Assert.assertEquals(new HashSet<>(Arrays.asList("name", "born")),
propertyNames);
}
}
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