contrib/src/test/java/org/apache/apex/malhar/contrib/misc/algo/FilterKeyValsTest.java

/**
 * 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.malhar.contrib.misc.algo;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.junit.Assert;
import org.junit.Test;

import org.apache.apex.malhar.lib.testbench.CollectorTestSink;

/**
 * @deprecated
 * Functional tests for {@link FilterKeyVals}<p>
 *
 */
@Deprecated
public class FilterKeyValsTest
{
  @SuppressWarnings("unchecked")
  int getTotal(List<Object> list)
  {
    int ret = 0;
    for (Object map: list) {
      for (Map.Entry<String, Number> e: ((HashMap<String, Number>)map).entrySet()) {
        ret += e.getValue().intValue();
      }
    }
    return ret;
  }

  /**
   * Test node logic emits correct results
   */
  @SuppressWarnings({ "rawtypes", "unchecked" })
  @Test
  public void testNodeProcessing() throws Exception
  {
    FilterKeyVals<String,Number> oper = new FilterKeyVals<String,Number>();

    CollectorTestSink sortSink = new CollectorTestSink();
    oper.filter.setSink(sortSink);
    HashMap<String,Number> filter = new HashMap<String,Number>();
    filter.put("b",2);
    oper.setKeyVals(filter);
    oper.clearKeys();

    filter.clear();
    filter.put("e", 200);
    filter.put("f", 2);
    filter.put("blah", 2);
    oper.setKeyVals(filter);
    filter.clear();
    filter.put("a", 2);
    oper.setKeyVals(filter);

    oper.beginWindow(0);
    HashMap<String, Number> input = new HashMap<String, Number>();
    input.put("a", 2);
    input.put("b", 5);
    input.put("c", 7);
    input.put("d", 42);
    input.put("e", 202);
    input.put("e", 200);
    input.put("f", 2);
    oper.data.process(input);
    Assert.assertEquals("number emitted tuples", 3, sortSink.collectedTuples.size());
    Assert.assertEquals("Total filtered value is ", 204, getTotal(sortSink.collectedTuples));
    sortSink.clear();

    input.clear();
    input.put("a", 5);
    oper.data.process(input);
    Assert.assertEquals("number emitted tuples", 0, sortSink.collectedTuples.size());
    sortSink.clear();

    input.clear();
    input.put("a", 2);
    input.put("b", 33);
    input.put("f", 2);
    oper.data.process(input);
    Assert.assertEquals("number emitted tuples", 2, sortSink.collectedTuples.size());
    Assert.assertEquals("Total filtered value is ", 4, getTotal(sortSink.collectedTuples));
    sortSink.clear();

    input.clear();
    input.put("b", 6);
    input.put("a", 2);
    input.put("j", 6);
    input.put("e", 2);
    input.put("dd", 6);
    input.put("blah", 2);
    input.put("another", 6);
    input.put("notmakingit", 2);
    oper.data.process(input);
    Assert.assertEquals("number emitted tuples", 2, sortSink.collectedTuples.size());
    Assert.assertEquals("Total filtered value is ", 4, getTotal(sortSink.collectedTuples));
    sortSink.clear();

    input.clear();
    input.put("c", 9);
    oper.setInverse(true);
    oper.data.process(input);
    Assert.assertEquals("number emitted tuples", 1, sortSink.collectedTuples.size());
    Assert.assertEquals("Total filtered value is ", 9, getTotal(sortSink.collectedTuples));

    oper.endWindow();
  }
}