tajo-core-tests/src/test/java/org/apache/tajo/querymaster/TestIntermediateEntry.java

/**
 * 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.tajo.querymaster;

import org.apache.tajo.util.Pair;
import org.junit.Test;

import java.util.ArrayList;
import java.util.List;

import static org.junit.Assert.assertEquals;

public class TestIntermediateEntry {
  @Test
  public void testPage() {
    Task.IntermediateEntry interm = new Task.IntermediateEntry(-1, -1, 1, null);

    List<Pair<Long, Integer>> pages = new ArrayList<Pair<Long, Integer>>();
    pages.add(new Pair(0L, 1441275));
    pages.add(new Pair(1441275L, 1447446));
    pages.add(new Pair(2888721L, 1442507));

    interm.setPages(pages);

    long splitBytes = 3 * 1024 * 1024;

    List<Pair<Long, Long>> splits = interm.split(splitBytes, splitBytes);
    assertEquals(2, splits.size());

    long[][] expected = { {0, 1441275 + 1447446}, {1441275 + 1447446, 1442507} };
    for (int i = 0; i < 2; i++) {
      Pair<Long, Long> eachSplit = splits.get(i);
      assertEquals(expected[i][0], eachSplit.getFirst().longValue());
      assertEquals(expected[i][1], eachSplit.getSecond().longValue());
    }
  }
}