TestGapDeduce.java Source code

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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.
 */

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

import org.apache.hadoop.io.Text;
import org.apache.hadoop.mrunit.MapDriver;
import org.apache.hadoop.mrunit.MapReduceDriver;
import org.apache.hadoop.mrunit.ReduceDriver;
import org.junit.Before;
import org.junit.Test;

public class TestGapDeduce {

    private MapDriver<Text, Text, Text, Text> mapDriver;
    private ReduceDriver<Text, Text, Text, Text> reduceDriver;

    @Before
    public void setUp() {
        Gapper mapper = new Gapper();
        Deducer reducer = new Deducer();
        mapDriver = MapDriver.newMapDriver(mapper);
        ;
        reduceDriver = ReduceDriver.newReduceDriver(reducer);
    }

    @Test
    public void testMapper() {
        mapDriver.withInput(new Text("sanford"), new Text("sage"));
        mapDriver.withOutput(new Text("sage"), new Text("sanford"));
        mapDriver.runTest();
    }

    @Test
    public void testReducer() {
        List<Text> values = new ArrayList<Text>();
        values.add(new Text("sage"));
        values.add(new Text("ian"));
        values.add(new Text("sage"));
        reduceDriver.withInput(new Text("sanford"), values);
        reduceDriver.withOutput(new Text("sanford"), new Text("[ian, sage]"));
        reduceDriver.runTest();
    }
}