/**
* Copyright (c) 2008-2011, http://www.snakeyaml.org
*
* 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.yaml.snakeyaml.recursive.generics;
import java.beans.IntrospectionException;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Map.Entry;
import junit.framework.TestCase;
import org.yaml.snakeyaml.DumperOptions;
import org.yaml.snakeyaml.JavaBeanLoader;
import org.yaml.snakeyaml.TypeDescription;
import org.yaml.snakeyaml.Util;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.generics.GenericsBugDetector;
import org.yaml.snakeyaml.nodes.Tag;
import org.yaml.snakeyaml.representer.Representer;
public class HumanGenericsTest extends TestCase {
public void testNoChildren() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
HumanGen father = new HumanGen();
father.setName("Father");
father.setBirthday(new Date(1000000000));
father.setBirthPlace("Leningrad");
father.setBankAccountOwner(father);
HumanGen mother = new HumanGen();
mother.setName("Mother");
mother.setBirthday(new Date(100000000000L));
mother.setBirthPlace("Saint-Petersburg");
father.setPartner(mother);
mother.setPartner(father);
mother.setBankAccountOwner(father);
Yaml yaml = new Yaml();
String output = yaml.dump(father);
String etalon = Util.getLocalResource("recursive/generics/no-children-1.yaml");
assertEquals(etalon, output);
//
HumanGen father2 = (HumanGen) yaml.load(output);
assertNotNull(father2);
assertEquals("Father", father2.getName());
assertEquals("Mother", father2.getPartner().getName());
assertEquals("Father", father2.getBankAccountOwner().getName());
assertSame(father2, father2.getBankAccountOwner());
}
/**
* the YAML document should contain no global tags
*
* @throws IntrospectionException
*/
public void testNoChildren2() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
HumanGen father = new HumanGen();
father.setName("Father");
father.setBirthday(new Date(1000000000));
father.setBirthPlace("Leningrad");
father.setBankAccountOwner(father);
HumanGen mother = new HumanGen();
mother.setName("Mother");
mother.setBirthday(new Date(100000000000L));
mother.setBirthPlace("Saint-Petersburg");
father.setPartner(mother);
mother.setPartner(father);
mother.setBankAccountOwner(father);
DumperOptions options = new DumperOptions();
options.setExplicitRoot(Tag.MAP);
Yaml yaml = new Yaml(options);
String output = yaml.dump(father);
String etalon = Util.getLocalResource("recursive/generics/no-children-2.yaml");
assertEquals(etalon, output);
//
JavaBeanLoader<HumanGen> loader = new JavaBeanLoader<HumanGen>(HumanGen.class);
HumanGen father2 = (HumanGen) loader.load(etalon);
assertNotNull(father2);
assertEquals("Father", father2.getName());
assertEquals("Mother", father2.getPartner().getName());
assertEquals("Father", father2.getBankAccountOwner().getName());
assertSame(father2, father2.getBankAccountOwner());
}
public void testChildren() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
HumanGen father = new HumanGen();
father.setName("Father");
father.setBirthday(new Date(1000000000));
father.setBirthPlace("Leningrad");
father.setBankAccountOwner(father);
//
HumanGen mother = new HumanGen();
mother.setName("Mother");
mother.setBirthday(new Date(100000000000L));
mother.setBirthPlace("Saint-Petersburg");
father.setPartner(mother);
mother.setPartner(father);
mother.setBankAccountOwner(father);
//
HumanGen son = new HumanGen();
son.setName("Son");
son.setBirthday(new Date(310000000000L));
son.setBirthPlace("Munich");
son.setBankAccountOwner(father);
son.setFather(father);
son.setMother(mother);
//
HumanGen daughter = new HumanGen();
daughter.setName("Daughter");
daughter.setBirthday(new Date(420000000000L));
daughter.setBirthPlace("New York");
daughter.setBankAccountOwner(father);
daughter.setFather(father);
daughter.setMother(mother);
//
Set<HumanGen> children = new LinkedHashSet<HumanGen>(2);
children.add(son);
children.add(daughter);
father.setChildren(children);
mother.setChildren(children);
//
Constructor constructor = new Constructor();
TypeDescription humanDescription = new TypeDescription(HumanGen.class);
humanDescription.putMapPropertyType("children", HumanGen.class, Object.class);
constructor.addTypeDescription(humanDescription);
Yaml yaml = new Yaml(constructor);
String output = yaml.dump(son);
// System.out.println(output);
String etalon = Util.getLocalResource("recursive/generics/with-children.yaml");
assertEquals(etalon, output);
//
HumanGen son2 = (HumanGen) yaml.load(output);
assertNotNull(son2);
assertEquals("Son", son.getName());
HumanGen father2 = son2.getFather();
assertEquals("Father", father2.getName());
assertEquals("Mother", son2.getMother().getName());
assertSame(father2, father2.getBankAccountOwner());
assertSame(father2.getPartner(), son2.getMother());
assertSame(father2, son2.getMother().getPartner());
Set<HumanGen> children2 = father2.getChildren();
assertEquals(2, children2.size());
assertSame(father2.getPartner().getChildren(), children2);
for (Object child : children2) {
assertSame(HumanGen.class, child.getClass()); // check if type
// descriptor was correct
}
}
public void testChildren2() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
HumanGen2 father = new HumanGen2();
father.setName("Father");
father.setBirthday(new Date(1000000000));
father.setBirthPlace("Leningrad");
father.setBankAccountOwner(father);
//
HumanGen2 mother = new HumanGen2();
mother.setName("Mother");
mother.setBirthday(new Date(100000000000L));
mother.setBirthPlace("Saint-Petersburg");
father.setPartner(mother);
mother.setPartner(father);
mother.setBankAccountOwner(father);
//
HumanGen2 son = new HumanGen2();
son.setName("Son");
son.setBirthday(new Date(310000000000L));
son.setBirthPlace("Munich");
son.setBankAccountOwner(father);
son.setFather(father);
son.setMother(mother);
//
HumanGen2 daughter = new HumanGen2();
daughter.setName("Daughter");
daughter.setBirthday(new Date(420000000000L));
daughter.setBirthPlace("New York");
daughter.setBankAccountOwner(father);
daughter.setFather(father);
daughter.setMother(mother);
//
HashMap<HumanGen2, String> children = new LinkedHashMap<HumanGen2, String>(2);
children.put(son, "son");
children.put(daughter, "daughter");
father.setChildren(children);
mother.setChildren(children);
//
Representer representer = new Representer();
representer.addClassTag(HumanGen2.class, Tag.MAP);
Yaml yaml = new Yaml(representer);
String output = yaml.dump(son);
// System.out.println(output);
String etalon = Util.getLocalResource("recursive/generics/with-children-2.yaml");
assertEquals(etalon, output);
// load
TypeDescription humanDescription = new TypeDescription(HumanGen2.class);
humanDescription.putMapPropertyType("children", HumanGen2.class, String.class);
JavaBeanLoader<HumanGen2> beanLoader = new JavaBeanLoader<HumanGen2>(humanDescription);
//
HumanGen2 son2 = beanLoader.load(output);
assertNotNull(son2);
assertEquals("Son", son.getName());
HumanGen2 father2 = son2.getFather();
assertEquals("Father", father2.getName());
assertEquals("Mother", son2.getMother().getName());
assertSame(father2, father2.getBankAccountOwner());
assertSame(father2.getPartner(), son2.getMother());
assertSame(father2, son2.getMother().getPartner());
Map<HumanGen2, String> children2 = father2.getChildren();
assertEquals(2, children2.size());
assertSame(father2.getPartner().getChildren(), children2);
}
public void testChildren3() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
HumanGen3 father = new HumanGen3();
father.setName("Father");
father.setBirthday(new Date(1000000000));
father.setBirthPlace("Leningrad");
father.setBankAccountOwner(father);
//
HumanGen3 mother = new HumanGen3();
mother.setName("Mother");
mother.setBirthday(new Date(100000000000L));
mother.setBirthPlace("Saint-Petersburg");
father.setPartner(mother);
mother.setPartner(father);
mother.setBankAccountOwner(father);
//
HumanGen3 son = new HumanGen3();
son.setName("Son");
son.setBirthday(new Date(310000000000L));
son.setBirthPlace("Munich");
son.setBankAccountOwner(father);
son.setFather(father);
son.setMother(mother);
//
HumanGen3 daughter = new HumanGen3();
daughter.setName("Daughter");
daughter.setBirthday(new Date(420000000000L));
daughter.setBirthPlace("New York");
daughter.setBankAccountOwner(father);
daughter.setFather(father);
daughter.setMother(mother);
//
ArrayList<HumanGen3> children = new ArrayList<HumanGen3>();
children.add(son);
children.add(daughter);
father.setChildren(children);
mother.setChildren(children);
//
Constructor constructor = new Constructor();
TypeDescription Human3Description = new TypeDescription(HumanGen3.class);
Human3Description.putListPropertyType("children", HumanGen3.class);
constructor.addTypeDescription(Human3Description);
Yaml yaml = new Yaml(constructor);
String output = yaml.dump(son);
// System.out.println(output);
String etalon = Util.getLocalResource("recursive/generics/with-children-3.yaml");
assertEquals(etalon, output);
//
HumanGen3 son2 = (HumanGen3) yaml.load(output);
assertNotNull(son2);
assertEquals("Son", son.getName());
HumanGen3 father2 = son2.getFather();
assertEquals("Father", father2.getName());
assertEquals("Mother", son2.getMother().getName());
assertSame(father2, father2.getBankAccountOwner());
assertSame(father2.getPartner(), son2.getMother());
assertSame(father2, son2.getMother().getPartner());
List<HumanGen3> children2 = father2.getChildren();
assertEquals(2, children2.size());
assertSame(father2.getPartner().getChildren(), children2);
for (Object child : children2) {
assertSame(HumanGen3.class, child.getClass()); // check if type
// descriptor was
// correct
}
}
/*
* Loads same structure as created in testChildren. But root object is set
* of children
*/
@SuppressWarnings("unchecked")
public void testChildrenSetAsRoot() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
String etalon = Util.getLocalResource("recursive/generics/with-children-as-set.yaml");
Constructor constructor = new Constructor();
TypeDescription humanDescription = new TypeDescription(HumanGen.class);
humanDescription.putMapPropertyType("children", HumanGen.class, Object.class);
constructor.addTypeDescription(humanDescription);
Yaml yaml = new Yaml(constructor);
Set<HumanGen> children2 = (Set<HumanGen>) yaml.load(etalon);
assertNotNull(children2);
assertEquals(2, children2.size());
HumanGen firstChild = children2.iterator().next();
HumanGen father2 = firstChild.getFather();
assertEquals("Father", father2.getName());
assertEquals("Mother", firstChild.getMother().getName());
assertSame(father2, father2.getBankAccountOwner());
assertSame(father2.getPartner(), firstChild.getMother());
assertSame(father2, firstChild.getMother().getPartner());
assertSame(father2.getPartner().getChildren(), children2);
for (Object child : children2) {
assertSame(HumanGen.class, child.getClass()); // check if type
// descriptor was correct
}
}
/*
* Loads same structure as created in testChildren. But root object is map
* of children
*/
@SuppressWarnings("unchecked")
public void testChildrenMapAsRoot() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
String etalon = Util.getLocalResource("recursive/generics/with-children-as-map.yaml");
Constructor constructor = new Constructor();
TypeDescription Human2Description = new TypeDescription(HumanGen2.class);
Human2Description.putMapPropertyType("children", HumanGen2.class, String.class);
constructor.addTypeDescription(Human2Description);
Yaml yaml = new Yaml(constructor);
Map<HumanGen2, String> children2 = (Map<HumanGen2, String>) yaml.load(etalon);
assertNotNull(children2);
assertEquals(2, children2.size());
Entry<HumanGen2, String> firstEntry = children2.entrySet().iterator().next();
HumanGen2 firstChild = firstEntry.getKey();
HumanGen2 father2 = firstChild.getFather();
assertEquals("Father", father2.getName());
assertEquals("Mother", firstChild.getMother().getName());
assertSame(father2, father2.getBankAccountOwner());
assertSame(father2.getPartner(), firstChild.getMother());
assertSame(father2, firstChild.getMother().getPartner());
assertSame(father2.getPartner().getChildren(), children2);
}
/*
* Loads same structure as created in testChildren. But root object is list
* of children
*/
@SuppressWarnings("unchecked")
public void testChildrenListRoot() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
HumanGen3 father = new HumanGen3();
father.setName("Father");
father.setBirthday(new Date(1000000000));
father.setBirthPlace("Leningrad");
father.setBankAccountOwner(father);
//
HumanGen3 mother = new HumanGen3();
mother.setName("Mother");
mother.setBirthday(new Date(100000000000L));
mother.setBirthPlace("Saint-Petersburg");
father.setPartner(mother);
mother.setPartner(father);
mother.setBankAccountOwner(father);
//
HumanGen3 son = new HumanGen3();
son.setName("Son");
son.setBirthday(new Date(310000000000L));
son.setBirthPlace("Munich");
son.setBankAccountOwner(father);
son.setFather(father);
son.setMother(mother);
//
HumanGen3 daughter = new HumanGen3();
daughter.setName("Daughter");
daughter.setBirthday(new Date(420000000000L));
daughter.setBirthPlace("New York");
daughter.setBankAccountOwner(father);
daughter.setFather(father);
daughter.setMother(mother);
//
ArrayList<HumanGen3> children = new ArrayList<HumanGen3>();
children.add(son);
children.add(daughter);
father.setChildren(children);
mother.setChildren(children);
//
Constructor constructor = new Constructor();
TypeDescription Human3Description = new TypeDescription(HumanGen3.class);
Human3Description.putListPropertyType("children", HumanGen3.class);
constructor.addTypeDescription(Human3Description);
Yaml yaml = new Yaml(constructor);
String output = yaml.dump(father.getChildren());
// System.out.println(output);
String etalon = Util.getLocalResource("recursive/generics/with-children-as-list.yaml");
assertEquals(etalon, output);
//
List<HumanGen3> children2 = (List<HumanGen3>) yaml.load(output);
assertNotNull(children2);
HumanGen3 son2 = children2.iterator().next();
assertEquals(2, children2.size());
HumanGen3 father2 = son2.getFather();
assertEquals("Father", father2.getName());
assertEquals("Mother", son2.getMother().getName());
assertSame(father2, father2.getBankAccountOwner());
assertSame(father2.getPartner(), son2.getMother());
assertSame(father2, son2.getMother().getPartner());
assertSame(father2.getPartner().getChildren(), children2);
for (Object child : children2) {
assertSame(HumanGen3.class, child.getClass()); // check if type
// descriptor was
// correct
}
}
public void testBeanRing() throws IOException, IntrospectionException {
if (!GenericsBugDetector.isProperIntrospection()) {
return;
}
HumanGen man1 = new HumanGen();
man1.setName("Man 1");
HumanGen man2 = new HumanGen();
man2.setName("Man 2");
HumanGen man3 = new HumanGen();
man3.setName("Man 3");
man1.setBankAccountOwner(man2);
man2.setBankAccountOwner(man3);
man3.setBankAccountOwner(man1);
//
Yaml yaml = new Yaml();
String output = yaml.dump(man1);
// System.out.println(output);
String etalon = Util.getLocalResource("recursive/generics/beanring-3.yaml");
assertEquals(etalon, output);
//
HumanGen loadedMan1 = (HumanGen) yaml.load(output);
assertNotNull(loadedMan1);
assertEquals("Man 1", loadedMan1.getName());
HumanGen loadedMan2 = loadedMan1.getBankAccountOwner();
HumanGen loadedMan3 = loadedMan2.getBankAccountOwner();
assertSame(loadedMan1, loadedMan3.getBankAccountOwner());
}
}