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Commons Math example source code file (SumTest.java)
The Commons Math SumTest.java source code/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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 org.apache.commons.math.stat.descriptive.summary; import org.apache.commons.math.stat.descriptive.StorelessUnivariateStatisticAbstractTest; import org.apache.commons.math.stat.descriptive.UnivariateStatistic; /** * Test cases for the {@link Sum} class. * @version $Revision: 902201 $ $Date: 2010-01-22 13:18:16 -0500 (Fri, 22 Jan 2010) $ */ public class SumTest extends StorelessUnivariateStatisticAbstractTest{ protected Sum stat; /** * @param name */ public SumTest(String name) { super(name); } /** * {@inheritDoc} */ @Override public UnivariateStatistic getUnivariateStatistic() { return new Sum(); } /** * {@inheritDoc} */ @Override public double expectedValue() { return this.sum; } /**Expected value for the testArray defined in UnivariateStatisticAbstractTest */ public double expectedWeightedValue() { return this.weightedSum; } public void testSpecialValues() { Sum sum = new Sum(); assertTrue(Double.isNaN(sum.getResult())); sum.increment(1); assertEquals(1, sum.getResult(), 0); sum.increment(Double.POSITIVE_INFINITY); assertEquals(Double.POSITIVE_INFINITY, sum.getResult(), 0); sum.increment(Double.NEGATIVE_INFINITY); assertTrue(Double.isNaN(sum.getResult())); sum.increment(1); assertTrue(Double.isNaN(sum.getResult())); } public void testWeightedSum() { Sum sum = new Sum(); assertEquals(expectedWeightedValue(), sum.evaluate(testArray, testWeightsArray, 0, testArray.length), getTolerance()); assertEquals(expectedValue(), sum.evaluate(testArray, unitWeightsArray, 0, testArray.length), getTolerance()); } } Other Commons Math examples (source code examples)Here is a short list of links related to this Commons Math SumTest.java source code file: |
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