/**
* 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 org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;
import org.junit.Test;
public class TestNGramMapper {
@Test(expected = IOException.class)
public final void testMapperForNullValues() throws IOException, InterruptedException {
Mapper.Context context = mock(Mapper.Context.class);
NGramMapper mapper = new NGramMapper();
mapper.map(null, new Text("value1"), context);
}
@Test
public final void testMapperForValidValues() throws IOException, InterruptedException {
Mapper.Context context = mock(Mapper.Context.class);
NGramMapper mapper = new NGramMapper();
mapper.map(new Text("This is a book"), new Text("value1"), context);
verify(context).write(new Text("a book"), new Text("This is a bookdelimiterBetweenKeyAndValuevalue1"));
verify(context).write(new Text("This is"), new Text("This is a bookdelimiterBetweenKeyAndValuevalue1"));
verify(context).write(new Text("is a"), new Text("This is a bookdelimiterBetweenKeyAndValuevalue1"));
}
}