001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.mapreduce;
019
020import java.io.IOException;
021import org.apache.hadoop.hbase.HBaseClassTestRule;
022import org.apache.hadoop.hbase.testclassification.LargeTests;
023import org.apache.hadoop.hbase.testclassification.MapReduceTests;
024import org.junit.ClassRule;
025import org.junit.Test;
026import org.junit.experimental.categories.Category;
027
028@Category({ MapReduceTests.class, LargeTests.class })
029public class TestTableInputFormatScan extends TestTableInputFormatScanBase {
030
031  @ClassRule
032  public static final HBaseClassTestRule CLASS_RULE =
033    HBaseClassTestRule.forClass(TestTableInputFormatScan.class);
034
035  /**
036   * Tests a MR scan using specific number of mappers. The test table has 26 regions,
037   */
038  @Test
039  public void testGetSplits() throws IOException, InterruptedException, ClassNotFoundException {
040    testNumOfSplits(1, 26);
041    testNumOfSplits(3, 78);
042  }
043
044  /**
045   * Runs a MR to test TIF using specific number of mappers. The test table has 26 regions,
046   */
047  @Test
048  public void testSpecifiedNumOfMappersMR()
049    throws InterruptedException, IOException, ClassNotFoundException {
050    testNumOfSplitsMR(2, 52);
051    testNumOfSplitsMR(4, 104);
052  }
053
054  /**
055   * Test if autoBalance create correct splits
056   */
057  @Test
058  public void testAutoBalanceSplits() throws IOException {
059    testAutobalanceNumOfSplit();
060  }
061
062  @Test
063  public void testScanFromConfiguration()
064    throws IOException, InterruptedException, ClassNotFoundException {
065    testScanFromConfiguration("bba", "bbd", "bbc");
066  }
067}