/**
* Copyright 2014 55 Minutes (http://www.55minutes.com)
*
* 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 fiftyfive.wicket.data;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import fiftyfive.wicket.BaseWicketTest;
import org.junit.Assert;
import org.junit.Test;
public class DtoDataProviderTest extends BaseWicketTest
{
/**
* Verify that if we call iterator() explicitly that we get the desired
* results, instead of cached ones.
*/
@Test
public void testExplicitIterate() throws Exception
{
DtoDataProviderTestPage page = assertRenderAndClickNext(0);
BeanResultProvider provider = page.getProvider();
Iterator<? extends Bean> iter = provider.iterator(0, provider.size());
List<Bean> list = new ArrayList<Bean>(100);
while(iter.hasNext())
{
list.add(iter.next());
}
Assert.assertEquals(100, list.size());
Assert.assertEquals(2, provider.getLoadCount());
}
@Test
public void testRender() throws Exception
{
assertRenderAndClickNext(0);
}
@Test
public void testRender_clickNext() throws Exception
{
assertRenderAndClickNext(1);
}
@Test
public void testRender_clickNextTwice() throws Exception
{
assertRenderAndClickNext(2);
}
private DtoDataProviderTestPage assertRenderAndClickNext(int clicks) throws Exception
{
DtoDataProviderTestPage page = new DtoDataProviderTestPage();
this.tester.startPage(page);
for(int i=0; i<clicks; i++)
{
this.tester.clickLink("paging:next");
}
this.tester.assertResultPage(
DtoDataProviderTestPage.class,
String.format("DtoDataProviderTestPage-%d-expected.html", clicks)
);
// Data should have been loaded only once per render!
Assert.assertEquals(1 + clicks, page.getLoadCount());
return page;
}
}