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.testclassification.LargeTests;
022import org.apache.hadoop.hbase.testclassification.MapReduceTests;
023import org.junit.jupiter.api.Tag;
024import org.junit.jupiter.api.Test;
025
026@Tag(MapReduceTests.TAG)
027@Tag(LargeTests.TAG)
028public class TestTableInputFormatScan extends TestTableInputFormatScanBase {
029
030  /**
031   * Tests a MR scan using specific number of mappers. The test table has 26 regions,
032   */
033  @Test
034  public void testGetSplits() throws IOException, InterruptedException, ClassNotFoundException {
035    testNumOfSplits(1, 26);
036    testNumOfSplits(3, 78);
037  }
038
039  /**
040   * Runs a MR to test TIF using specific number of mappers. The test table has 26 regions,
041   */
042  @Test
043  public void testSpecifiedNumOfMappersMR()
044    throws InterruptedException, IOException, ClassNotFoundException {
045    testNumOfSplitsMR(2, 52);
046    testNumOfSplitsMR(4, 104);
047  }
048
049  /**
050   * Test if autoBalance create correct splits
051   */
052  @Test
053  public void testAutoBalanceSplits() throws IOException {
054    testAutobalanceNumOfSplit();
055  }
056
057  @Test
058  public void testScanFromConfiguration()
059    throws IOException, InterruptedException, ClassNotFoundException {
060    testScanFromConfiguration("bba", "bbd", "bbc");
061  }
062}