001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.commons.math.stat.descriptive; 018 019 import junit.framework.Test; 020 import junit.framework.TestCase; 021 import junit.framework.TestSuite; 022 023 import org.apache.commons.math.stat.descriptive.moment.Mean; 024 025 /** 026 * Tests for AbstractUnivariateStatistic 027 * 028 * @version $Revision: 670469 $ $Date: 2008-06-23 04:01:38 -0400 (Mon, 23 Jun 2008) $ 029 */ 030 public class AbstractUnivariateStatisticTest extends TestCase { 031 032 public AbstractUnivariateStatisticTest(String name) { 033 super(name); 034 } 035 036 public static Test suite() { 037 TestSuite suite = new TestSuite(AbstractUnivariateStatisticTest.class); 038 suite.setName("AbstractUnivariateStatistic Tests"); 039 return suite; 040 } 041 042 protected double[] testArray = {0, 1, 2, 3, 4, 5}; 043 protected double[] nullArray = null; 044 protected double[] singletonArray = {0}; 045 protected Mean testStatistic = new Mean(); 046 047 public void testTestPositive() { 048 for (int j = 0; j < 6; j++) { 049 for (int i = 1; i < (7 - j); i++) { 050 assertTrue(testStatistic.test(testArray, 0, i)); 051 } 052 } 053 assertTrue(testStatistic.test(singletonArray, 0, 1)); 054 } 055 056 public void testTestNegative() { 057 assertFalse(testStatistic.test(singletonArray, 0, 0)); 058 assertFalse(testStatistic.test(testArray, 0, 0)); 059 try { 060 testStatistic.test(singletonArray, 2, 1); // start past end 061 fail("Expecting IllegalArgumentException"); 062 } catch (IllegalArgumentException ex) { 063 // expected 064 } 065 try { 066 testStatistic.test(testArray, 0, 7); // end past end 067 fail("Expecting IllegalArgumentException"); 068 } catch (IllegalArgumentException ex) { 069 // expected 070 } 071 try { 072 testStatistic.test(testArray, -1, 1); // start negative 073 fail("Expecting IllegalArgumentException"); 074 } catch (IllegalArgumentException ex) { 075 // expected 076 } 077 try { 078 testStatistic.test(testArray, 0, -1); // length negative 079 fail("Expecting IllegalArgumentException"); 080 } catch (IllegalArgumentException ex) { 081 // expected 082 } 083 try { 084 testStatistic.test(nullArray, 0, 1); // null array 085 fail("Expecting IllegalArgumentException"); 086 } catch (IllegalArgumentException ex) { 087 // expected 088 } 089 } 090 }