/**
* Copyright 2011 Nube Technologies
*
* Licensed 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 co.nubetech.hiho.similarity.ngram;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import java.io.IOException;
import java.util.ArrayList;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;
import org.junit.Test;
public class TestNGramReducer {
@Test(expected = IOException.class)
public final void testReducerForNullValues() throws IOException, InterruptedException {
ArrayList<Text> values = new ArrayList<Text>();
values.add(new Text("This is a bookdelimiterBetweenKeyAndValuevalue1"));
values.add(new Text("This is not a bookdelimiterBetweenKeyAndValuevalue2"));
Reducer.Context context = mock(Reducer.Context.class);
NGramReducer reducer = new NGramReducer();
reducer.reduce(null, values, context);
}
@Test
public void testReducerValidValues() throws IOException, InterruptedException {
ArrayList<Text> values = new ArrayList<Text>();
values.add(new Text("This is a bookdelimiterBetweenKeyAndValuevalue1"));
values.add(new Text("This is not a bookdelimiterBetweenKeyAndValuevalue2"));
Reducer.Context context = mock(Reducer.Context.class);
NGramReducer reducer = new NGramReducer();
reducer.reduce(new Text("This is"), values, context);
ValuePair valuePair = new ValuePair();
valuePair.setValue1(new Text("This is a bookdelimiterBetweenKeyAndValuevalue1"));
valuePair.setValue2(new Text("This is not a bookdelimiterBetweenKeyAndValuevalue2"));
verify(context).write(valuePair, new IntWritable(1));
}
}