library/src/test/java/com/datatorrent/lib/multiwindow/MultiWindowSumKeyValTest.java

/*
 * Copyright (c) 2013 DataTorrent, Inc. ALL Rights Reserved.
 *
 * 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 com.datatorrent.lib.multiwindow;


import org.junit.Assert;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.datatorrent.lib.testbench.CollectorTestSink;
import com.datatorrent.lib.util.KeyValPair;

/**
 * Functional tests for {@link com.datatorrent.lib.multiwindow.AbstractSlidingWindow}.
 */
public class MultiWindowSumKeyValTest
{
	private static Logger log = LoggerFactory.getLogger(MultiWindowSumKeyValTest.class);
	/**
	 * Test functional logic
	 */
	@SuppressWarnings({ "rawtypes", "unchecked" })
  @Test
	public void testNodeProcessing() throws InterruptedException
	{
		MultiWindowSumKeyVal<String, Integer> oper = new MultiWindowSumKeyVal<String, Integer>();

		CollectorTestSink swinSink = new CollectorTestSink();
		oper.sum.setSink(swinSink);

		oper.beginWindow(0);
		KeyValPair<String, Integer> low = new KeyValPair<String, Integer>("a", 3);
		oper.data.process(low);
		KeyValPair<String, Integer> high = new KeyValPair<String, Integer>("a", 11);
		oper.data.process(high);
		oper.endWindow();

		oper.beginWindow(1);
		low = new KeyValPair<String, Integer>("a", 1);
		oper.data.process(low);
		high = new KeyValPair<String, Integer>("a", 9);
		oper.data.process(high);
		oper.endWindow();

		Assert.assertEquals("number emitted tuples", 1, swinSink.collectedTuples.size());
		for (Object o : swinSink.collectedTuples) {
			log.debug(o.toString());
		}
	}
}