content: /**
   * 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.apex.examples.mroperator;
  
  import org.junit.Assert;
  import org.junit.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.apache.apex.malhar.lib.testbench.CollectorTestSink;
  import org.apache.apex.malhar.lib.util.KeyHashValPair;
  import org.apache.hadoop.io.IntWritable;
  import org.apache.hadoop.io.Text;
  
  public class ReduceOperatorTest
  {
    private static Logger logger = LoggerFactory.getLogger(ReduceOperatorTest.class);
  
    /**
     * Test node logic emits correct results
     */
    @Test
    public void testNodeProcessing() throws Exception
    {
      testNodeProcessingSchema(new ReduceOperator<Text, IntWritable,Text, IntWritable>());
    }
  
    @SuppressWarnings({ "rawtypes", "unchecked" })
    public void testNodeProcessingSchema(ReduceOperator<Text, IntWritable,Text, IntWritable> oper)
    {
      oper.setReduceClass(WordCount.Reduce.class);
      oper.setConfigFile(null);
      oper.setup(null);
  
      CollectorTestSink sortSink = new CollectorTestSink();
      oper.output.setSink(sortSink);
  
      oper.beginWindow(0);
      oper.inputCount.process(new KeyHashValPair<Integer, Integer>(1, 1));
      oper.input.process(new KeyHashValPair<Text, IntWritable>(new Text("one"), new IntWritable(1)));
      oper.input.process(new KeyHashValPair<Text, IntWritable>(new Text("one"), new IntWritable(1)));
      oper.input.process(new KeyHashValPair<Text, IntWritable>(new Text("two"), new IntWritable(1)));
      oper.endWindow();
  
      oper.beginWindow(1);
      oper.input.process(new KeyHashValPair<Text, IntWritable>(new Text("one"), new IntWritable(1)));
      oper.input.process(new KeyHashValPair<Text, IntWritable>(new Text("two"), new IntWritable(1)));
      oper.input.process(new KeyHashValPair<Text, IntWritable>(new Text("two"), new IntWritable(1)));
      oper.inputCount.process(new KeyHashValPair<Integer, Integer>(1, -1));
      oper.endWindow();
      Assert.assertEquals("number emitted tuples", 2, sortSink.collectedTuples.size());
      for (Object o : sortSink.collectedTuples) {
        logger.debug(o.toString());
      }
      logger.debug("Done testing round\n");
    }
  }
  