TestSortedRanges.java
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上传日期:2018-01-08
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- /**
- * 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.hadoop.mapred;
- import java.util.Iterator;
- import junit.framework.TestCase;
- import org.apache.commons.logging.Log;
- import org.apache.commons.logging.LogFactory;
- import org.apache.hadoop.mapred.SortedRanges.Range;
- public class TestSortedRanges extends TestCase {
- private static final Log LOG =
- LogFactory.getLog(TestSortedRanges.class);
-
- public void testAdd() {
- SortedRanges sr = new SortedRanges();
- sr.add(new Range(2,9));
- assertEquals(9, sr.getIndicesCount());
-
- sr.add(new SortedRanges.Range(3,5));
- assertEquals(9, sr.getIndicesCount());
-
- sr.add(new SortedRanges.Range(7,1));
- assertEquals(9, sr.getIndicesCount());
-
- sr.add(new Range(1,12));
- assertEquals(12, sr.getIndicesCount());
-
- sr.add(new Range(7,9));
- assertEquals(15, sr.getIndicesCount());
-
- sr.add(new Range(31,10));
- sr.add(new Range(51,10));
- sr.add(new Range(66,10));
- assertEquals(45, sr.getIndicesCount());
-
- sr.add(new Range(21,50));
- assertEquals(70, sr.getIndicesCount());
-
- LOG.debug(sr);
-
- Iterator<Long> it = sr.skipRangeIterator();
- int i = 0;
- assertEquals(i, it.next().longValue());
- for(i=16;i<21;i++) {
- assertEquals(i, it.next().longValue());
- }
- assertEquals(76, it.next().longValue());
- assertEquals(77, it.next().longValue());
-
- }
-
- public void testRemove() {
- SortedRanges sr = new SortedRanges();
- sr.add(new Range(2,19));
- assertEquals(19, sr.getIndicesCount());
-
- sr.remove(new SortedRanges.Range(15,8));
- assertEquals(13, sr.getIndicesCount());
-
- sr.remove(new SortedRanges.Range(6,5));
- assertEquals(8, sr.getIndicesCount());
-
- sr.remove(new SortedRanges.Range(8,4));
- assertEquals(7, sr.getIndicesCount());
-
- sr.add(new Range(18,5));
- assertEquals(12, sr.getIndicesCount());
-
- sr.add(new Range(25,1));
- assertEquals(13, sr.getIndicesCount());
-
- sr.remove(new SortedRanges.Range(7,24));
- assertEquals(4, sr.getIndicesCount());
-
- sr.remove(new SortedRanges.Range(5,1));
- assertEquals(3, sr.getIndicesCount());
-
- LOG.debug(sr);
- }
- }