library/src/test/java/com/datatorrent/lib/stream/KeyPairToHashMapTest.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.stream;

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

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

/**
 * Functional test for {@link com.datatorrent.lib.stream.KeyValPairToHashMap}
 * <p>
 * <br>
 */
public class KeyPairToHashMapTest
{

	/**
	 * Test oper pass through. The Object passed is not relevant
	 */
	@SuppressWarnings({ "unchecked", "rawtypes" })
	@Test
	public void testNodeProcessing() throws Exception
	{
		KeyValPairToHashMap oper = new KeyValPairToHashMap();
		CountTestSink mapSink = new CountTestSink();

		oper.map.setSink(mapSink);

		oper.beginWindow(0);
		KeyValPair<String, String> input = new KeyValPair<String, String>("a", "1");

		// Same input object can be used as the oper is just pass through
		int numtuples = 1000;
		for (int i = 0; i < numtuples; i++) {
			oper.keyval.process(input);
		}
		oper.endWindow();

		Assert.assertEquals("number emitted tuples", numtuples, mapSink.count);
	}
}