library/src/test/java/com/datatorrent/lib/math/SumCountMapTest.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.math;

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

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

import com.datatorrent.lib.testbench.CollectorTestSink;

/**
 * Functional tests for {@link com.datatorrent.lib.math.SumCountMap}.
 */
public class SumCountMapTest
{
	/**
	 * Test operator logic emits correct results.
	 */
	@Test
	public void testNodeProcessing()
	{
		testNodeSchemaProcessing(true, true);
		testNodeSchemaProcessing(true, false);
		testNodeSchemaProcessing(false, true);
		testNodeSchemaProcessing(false, false);
	}

	@SuppressWarnings({ "unchecked", "rawtypes" })
	public void testNodeSchemaProcessing(boolean sum, boolean count)
	{
		SumCountMap<String, Double> oper = new SumCountMap<String, Double>();
		oper.setType(Double.class);
		CollectorTestSink sumSink = new CollectorTestSink();
		CollectorTestSink countSink = new CollectorTestSink();
		if (sum) {
			oper.sum.setSink(sumSink);
		}
		if (count) {
			oper.count.setSink(countSink);
		}

		oper.beginWindow(0); //

		HashMap<String, Double> input = new HashMap<String, Double>();

		input.put("a", 2.0);
		input.put("b", 20.0);
		input.put("c", 1000.0);
		oper.data.process(input);
		input.clear();
		input.put("a", 1.0);
		oper.data.process(input);
		input.clear();
		input.put("a", 10.0);
		input.put("b", 5.0);
		oper.data.process(input);
		input.clear();
		input.put("d", 55.0);
		input.put("b", 12.0);
		oper.data.process(input);
		input.clear();
		input.put("d", 22.0);
		oper.data.process(input);
		input.clear();
		input.put("d", 14.2);
		oper.data.process(input);
		input.clear();

		// Mix integers and doubles
		HashMap<String, Double> inputi = new HashMap<String, Double>();
		inputi.put("d", 46.0);
		inputi.put("e", 2.0);
		oper.data.process(inputi);
		inputi.clear();
		inputi.put("a", 23.0);
		inputi.put("d", 4.0);
		oper.data.process(inputi);
		inputi.clear();

		oper.endWindow(); //

		if (sum) {
			// payload should be 1 bag of tuples with keys "a", "b", "c", "d", "e"
			Assert.assertEquals("number emitted tuples", 1,
					sumSink.collectedTuples.size());
			for (Object o : sumSink.collectedTuples) {
				HashMap<String, Object> output = (HashMap<String, Object>) o;
				for (Map.Entry<String, Object> e : output.entrySet()) {
					Double val = (Double) e.getValue();
					if (e.getKey().equals("a")) {
						Assert.assertEquals("emitted value for 'a' was ", new Double(36),
								val);
					} else if (e.getKey().equals("b")) {
						Assert.assertEquals("emitted tuple for 'b' was ", new Double(37),
								val);
					} else if (e.getKey().equals("c")) {
						Assert.assertEquals("emitted tuple for 'c' was ", new Double(1000),
								val);
					} else if (e.getKey().equals("d")) {
						Assert.assertEquals("emitted tuple for 'd' was ",
								new Double(141.2), val);
					} else if (e.getKey().equals("e")) {
						Assert.assertEquals("emitted tuple for 'e' was ", new Double(2),
								val);
					}
				}
			}
		}
		if (count) {
			// payload should be 1 bag of tuples with keys "a", "b", "c", "d", "e"
			Assert.assertEquals("number emitted tuples", 1,
					countSink.collectedTuples.size());
			for (Object o : countSink.collectedTuples) {
				HashMap<String, Object> output = (HashMap<String, Object>) o;
				for (Map.Entry<String, Object> e : output.entrySet()) {
					Integer val = (Integer) e.getValue();
					if (e.getKey().equals("a")) {
						Assert
								.assertEquals("emitted value for 'a' was ", 4, val.intValue());
					} else if (e.getKey().equals("b")) {
						Assert
								.assertEquals("emitted tuple for 'b' was ", 3, val.intValue());
					} else if (e.getKey().equals("c")) {
						Assert
								.assertEquals("emitted tuple for 'c' was ", 1, val.intValue());
					} else if (e.getKey().equals("d")) {
						Assert
								.assertEquals("emitted tuple for 'd' was ", 5, val.intValue());
					} else if (e.getKey().equals("e")) {
						Assert
								.assertEquals("emitted tuple for 'e' was ", 1, val.intValue());
					}
				}
			}
		}
	}
}