/*
* 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.jackrabbit.commons.iterator;
import java.util.Arrays;
import java.util.List;
import javax.jcr.RangeIterator;
import org.apache.jackrabbit.commons.predicate.Predicate;
import junit.framework.TestCase;
/**
* Test cases for the {@link FilteredRangeIterator} class.
*
* @see <a href="https://issues.apache.org/jira/browse/JCR-2722">JCR-2722</a>
*/
public class FilteredRangeIteratorTest extends TestCase {
private static final List<String> LIST = Arrays.asList("x", "y", "z");
public void testMatchAll() {
RangeIterator iterator = new FilteredRangeIterator(LIST.iterator());
assertEquals(3, iterator.getSize());
assertEquals(0, iterator.getPosition());
assertTrue(iterator.hasNext());
assertEquals("x", iterator.next());
assertEquals(1, iterator.getPosition());
assertTrue(iterator.hasNext());
assertEquals("y", iterator.next());
assertEquals(2, iterator.getPosition());
assertTrue(iterator.hasNext());
assertEquals("z", iterator.next());
assertEquals(3, iterator.getPosition());
assertFalse(iterator.hasNext());
}
public void testMatchNone() {
RangeIterator iterator =
new FilteredRangeIterator(LIST.iterator(), Predicate.FALSE);
assertEquals(0, iterator.getSize());
assertEquals(0, iterator.getPosition());
assertFalse(iterator.hasNext());
}
public void testSkip() {
RangeIterator iterator = new FilteredRangeIterator(LIST.iterator());
assertEquals(3, iterator.getSize());
assertEquals(0, iterator.getPosition());
assertTrue(iterator.hasNext());
assertEquals("x", iterator.next());
iterator.skip(1);
assertEquals(2, iterator.getPosition());
assertTrue(iterator.hasNext());
assertEquals("z", iterator.next());
assertEquals(3, iterator.getPosition());
assertFalse(iterator.hasNext());
}
}