/*
* 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.commons.lang3.tuple;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import org.junit.Test;
/**
* Test the Triple class.
* @version $Id$
*/
public class ImmutableTripleTest {
@Test
public void testBasic() throws Exception {
final ImmutableTriple<Integer, String, Boolean> triple = new ImmutableTriple<Integer, String, Boolean>(0, "foo", Boolean.TRUE);
assertEquals(0, triple.left.intValue());
assertEquals(0, triple.getLeft().intValue());
assertEquals("foo", triple.middle);
assertEquals("foo", triple.getMiddle());
assertEquals(Boolean.TRUE, triple.right);
assertEquals(Boolean.TRUE, triple.getRight());
final ImmutableTriple<Object, String, Integer> triple2 = new ImmutableTriple<Object, String, Integer>(null, "bar", 42);
assertNull(triple2.left);
assertNull(triple2.getLeft());
assertEquals("bar", triple2.middle);
assertEquals("bar", triple2.getMiddle());
assertEquals(new Integer(42), triple2.right);
assertEquals(new Integer(42), triple2.getRight());
}
@Test
public void testTripleOf() throws Exception {
final ImmutableTriple<Integer, String, Boolean> triple = ImmutableTriple.of(0, "foo", Boolean.FALSE);
assertEquals(0, triple.left.intValue());
assertEquals(0, triple.getLeft().intValue());
assertEquals("foo", triple.middle);
assertEquals("foo", triple.getMiddle());
assertEquals(Boolean.FALSE, triple.right);
assertEquals(Boolean.FALSE, triple.getRight());
final ImmutableTriple<Object, String, Boolean> triple2 = ImmutableTriple.of(null, "bar", Boolean.TRUE);
assertNull(triple2.left);
assertNull(triple2.getLeft());
assertEquals("bar", triple2.middle);
assertEquals("bar", triple2.getMiddle());
assertEquals(Boolean.TRUE, triple2.right);
assertEquals(Boolean.TRUE, triple2.getRight());
}
@Test
public void testEquals() throws Exception {
assertEquals(ImmutableTriple.of(null, "foo", 42), ImmutableTriple.of(null, "foo", 42));
assertFalse(ImmutableTriple.of("foo", 0, Boolean.TRUE).equals(ImmutableTriple.of("foo", null, null)));
assertFalse(ImmutableTriple.of("foo", "bar", "baz").equals(ImmutableTriple.of("xyz", "bar", "blo")));
final ImmutableTriple<String, String, String> p = ImmutableTriple.of("foo", "bar", "baz");
assertTrue(p.equals(p));
assertFalse(p.equals(new Object()));
}
@Test
public void testHashCode() throws Exception {
assertEquals(ImmutableTriple.of(null, "foo", Boolean.TRUE).hashCode(), ImmutableTriple.of(null, "foo", Boolean.TRUE).hashCode());
}
@Test
public void testToString() throws Exception {
assertEquals("(null,null,null)", ImmutableTriple.of(null, null, null).toString());
assertEquals("(null,two,null)", ImmutableTriple.of(null, "two", null).toString());
assertEquals("(one,null,null)", ImmutableTriple.of("one", null, null).toString());
assertEquals("(one,two,null)", ImmutableTriple.of("one", "two", null).toString());
assertEquals("(null,two,three)", ImmutableTriple.of(null, "two", "three").toString());
assertEquals("(one,null,three)", ImmutableTriple.of("one", null, "three").toString());
assertEquals("(one,two,three)", MutableTriple.of("one", "two", "three").toString());
}
@Test
@SuppressWarnings("unchecked")
public void testSerialization() throws Exception {
final ImmutableTriple<Integer, String, Boolean> origTriple = ImmutableTriple.of(0, "foo", Boolean.TRUE);
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
final ObjectOutputStream out = new ObjectOutputStream(baos);
out.writeObject(origTriple);
final ImmutableTriple<Integer, String, Boolean> deserializedTriple = (ImmutableTriple<Integer, String, Boolean>) new ObjectInputStream(
new ByteArrayInputStream(baos.toByteArray())).readObject();
assertEquals(origTriple, deserializedTriple);
assertEquals(origTriple.hashCode(), deserializedTriple.hashCode());
}
}