/**
* 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.mrunit.internal.mapreduce;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mrunit.mapreduce.ReduceDriver;
import org.junit.Test;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import static org.junit.Assert.assertEquals;
public class MockReduceContextWrapperTest {
class TestReducer extends Reducer {
@Override
protected void setup(Context context) throws IOException, InterruptedException {
super.setup(context);
assertEquals(10, context.getNumReduceTasks());
}
}
/**
* Tests that method context.getNumReduceTasks() correctly returns value from configuration
* */
@Test
public void testContext_getNumReduceTasks() throws Exception {
Reducer reducer = new TestReducer();
ReduceDriver driver = ReduceDriver.newReduceDriver(reducer);
driver.getConfiguration().setInt("mapred.reduce.tasks", 10);
List<Text> values = new ArrayList();
values.add(new Text("bb"));
driver.withInput(new Text("aa"), values);
assertEquals("Reducer not executed", 1, driver.run().size());
}
}