package org.apache.blur.manager.results;
/**
* 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.
*/
import java.util.ArrayList;
import java.util.Arrays;
import org.apache.blur.manager.results.PeekableIterator;
import org.apache.blur.utils.BlurUtil;
import org.junit.Test;
public class PeekableIteratorTest {
@Test
public void testPeekableIterator1() throws Exception {
PeekableIterator<Integer,Exception> iterator = PeekableIterator.wrap(BlurUtil.convert(Arrays.asList(0, 1, 2, 3, 4, 5, 6, 7, 8, 9).iterator()));
while (iterator.hasNext()) {
for (int i = 0; i < 3; i++) {
System.out.println(iterator.peek());
}
System.out.println(iterator.next());
}
}
@Test
public void testPeekableIteratorEmpty() throws Exception {
PeekableIterator<Integer,Exception> iterator = PeekableIterator.wrap(BlurUtil.convert(new ArrayList<Integer>().iterator()));
for (int i = 0; i < 3; i++) {
System.out.println(iterator.peek());
}
while (iterator.hasNext()) {
for (int i = 0; i < 3; i++) {
System.out.println(iterator.peek());
}
System.out.println(iterator.next());
}
}
}