/*
* 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;
import org.junit.Assert;
import org.junit.Test;
/**
* Some tests for meta data.
*/
public class MetaDataTest extends Assert
{
private static final MetaDataKey<String> KEY1 = new MetaDataKey<String>()
{
private static final long serialVersionUID = 1L;
};
private static final MetaDataKey<String> KEY2 = new MetaDataKey<String>()
{
private static final long serialVersionUID = 1L;
};
private static final MetaDataKey<String> KEY3 = new MetaDataKey<String>()
{
private static final long serialVersionUID = 1L;
};
private static final MetaDataKey<String> KEY4 = new MetaDataKey<String>()
{
private static final long serialVersionUID = 1L;
};
/**
* Test bounds and basic operations.
*/
@Test
public void metaDataKey()
{
MetaDataEntry<?>[] md = KEY1.set(null, "1");
assertNotNull(md);
assertEquals(1, md.length);
md = KEY1.set(md, null);
assertNull(md);
md = KEY1.set(md, "1");
md = KEY2.set(md, "2");
md = KEY3.set(md, "3");
md = KEY4.set(md, "4");
assertEquals(4, md.length);
md = KEY3.set(md, null);
assertEquals(3, md.length);
assertEquals("1", KEY1.get(md));
assertEquals("2", KEY2.get(md));
assertEquals(null, KEY3.get(md));
assertEquals("4", KEY4.get(md));
md = KEY4.set(md, null);
assertEquals(2, md.length);
assertEquals("1", KEY1.get(md));
assertEquals("2", KEY2.get(md));
assertEquals(null, KEY3.get(md));
assertEquals(null, KEY4.get(md));
md = KEY1.set(md, null);
assertEquals(1, md.length);
assertEquals(null, KEY1.get(md));
assertEquals("2", KEY2.get(md));
assertEquals(null, KEY3.get(md));
assertEquals(null, KEY4.get(md));
md = KEY2.set(md, null);
assertNull(md);
}
}