library/src/test/java/com/datatorrent/lib/logs/LineToTokenHashMapTest.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.logs;

import com.datatorrent.lib.logs.LineToTokenHashMap;
import com.datatorrent.lib.testbench.HashTestSink;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import junit.framework.Assert;
import org.junit.Test;

/**
 * 
 * Functional tests for {@link com.datatorrent.lib.logs.LineToTokenHashMap}.
 */
public class LineToTokenHashMapTest
{
	/**
	 * Test oper logic emits correct results
	 */
	@SuppressWarnings({ "rawtypes", "unchecked" })
	@Test
	public void testNodeProcessing()
	{

		LineToTokenHashMap oper = new LineToTokenHashMap();
		HashTestSink tokenSink = new HashTestSink();

		oper.setSplitBy(";");
		oper.setSplitTokenBy(",");
		oper.tokens.setSink(tokenSink);

		oper.beginWindow(0); //
		String input1 = "a,2,3;b,1,2;c,4,5,6";
		String input2 = "d";
		String input3 = "";
		int numTuples = 1000;
		for (int i = 0; i < numTuples; i++) {
			oper.data.process(input1);
			oper.data.process(input2);
			oper.data.process(input3);
		}
		oper.endWindow(); //
		Assert.assertEquals("number emitted tuples", 2, tokenSink.map.size());
		HashMap<HashMap<String, ArrayList<String>>, Object> smap = tokenSink.map;
		for (Map.Entry<HashMap<String, ArrayList<String>>, Object> e : smap
				.entrySet()) {
			for (Map.Entry<String, ArrayList<String>> l : e.getKey().entrySet()) {
				String key = l.getKey();
				ArrayList<String> list = l.getValue();
				if (key.equals("a")) {
					Assert
							.assertEquals("number emitted values for \"a\"", 2, list.size());
					Assert.assertEquals("first value for \"a\"", "2", list.get(0));
					Assert.assertEquals("second value for \"a\"", "3", list.get(1));
				} else if (key.equals("b")) {
					Assert
							.assertEquals("number emitted values for \"b\"", 2, list.size());
					Assert.assertEquals("first value for \"b\"", "1", list.get(0));
					Assert.assertEquals("second value for \"b\"", "2", list.get(1));
				} else if (key.equals("c")) {
					Assert
							.assertEquals("number emitted values for \"c\"", 3, list.size());
					Assert.assertEquals("first value for \"c\"", "4", list.get(0));
					Assert.assertEquals("second value for \"c\"", "5", list.get(1));
					Assert.assertEquals("second value for \"c\"", "6", list.get(2));
				} else if (key.equals("d")) {
					Assert
							.assertEquals("number emitted values for \"d\"", 0, list.size());
				}
			}
		}
	}
}