/**
* 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.hbase.mapreduce;
import java.util.ArrayList;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.Cell;
import org.apache.hadoop.hbase.KeyValue;
import org.apache.hadoop.hbase.SmallTests;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.io.ImmutableBytesWritable;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.mapreduce.Mapper;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import static org.mockito.Mockito.*;
@Category(SmallTests.class)
public class TestGroupingTableMapper {
/**
* Test GroupingTableMapper class
*/
@Test
public void testGroupingTableMapper() throws Exception {
GroupingTableMapper mapper = new GroupingTableMapper();
Configuration configuration = new Configuration();
configuration.set(GroupingTableMapper.GROUP_COLUMNS, "family1:clm family2:clm");
mapper.setConf(configuration);
Result result = mock(Result.class);
@SuppressWarnings("unchecked")
Mapper<ImmutableBytesWritable, Result, ImmutableBytesWritable, Result>.Context context =
mock(Mapper.Context.class);
context.write(any(ImmutableBytesWritable.class), any(Result.class));
List<Cell> keyValue = new ArrayList<Cell>();
byte[] row = {};
keyValue.add(new KeyValue(row, Bytes.toBytes("family2"), Bytes.toBytes("clm"), Bytes
.toBytes("value1")));
keyValue.add(new KeyValue(row, Bytes.toBytes("family1"), Bytes.toBytes("clm"), Bytes
.toBytes("value2")));
when(result.listCells()).thenReturn(keyValue);
mapper.map(null, result, context);
// template data
byte[][] data = { Bytes.toBytes("value1"), Bytes.toBytes("value2") };
ImmutableBytesWritable ibw = mapper.createGroupKey(data);
verify(context).write(ibw, result);
}
}