library/src/test/java/com/datatorrent/lib/stream/HashMapToKeyValPairTest.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 java.util.HashMap;

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

import com.datatorrent.lib.testbench.CountTestSink;

/**
 * Functional test for {@link com.datatorrent.lib.stream.HashMapToKeyValPair}
 */
public class HashMapToKeyValPairTest
{

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

		oper.key.setSink(keySink);
		oper.val.setSink(valSink);
		oper.keyval.setSink(keyvalSink);

		oper.beginWindow(0);
		HashMap<String, String> input = new HashMap<String, String>();
		input.put("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.data.process(input);
		}

		oper.endWindow();

		Assert.assertEquals("number emitted tuples", numtuples, keySink.count);
		Assert.assertEquals("number emitted tuples", numtuples, valSink.count);
		Assert.assertEquals("number emitted tuples", numtuples, keyvalSink.count);
	}
}