| /* |
| * 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.math3.stat.interval; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| /** |
| * Test cases for the IntervalUtils class. |
| * |
| */ |
| public class IntervalUtilsTest { |
| |
| private final int successes = 50; |
| private final int trials = 500; |
| private final double confidenceLevel = 0.9; |
| |
| // values to test must be exactly the same |
| private final double eps = 0.0; |
| |
| @Test |
| public void testAgrestiCoull() { |
| checkConfidenceIntervals(new AgrestiCoullInterval().createInterval(trials, successes, confidenceLevel), |
| IntervalUtils.getAgrestiCoullInterval(trials, successes, confidenceLevel)); |
| } |
| |
| @Test |
| public void testClopperPearson() { |
| checkConfidenceIntervals(new ClopperPearsonInterval().createInterval(trials, successes, confidenceLevel), |
| IntervalUtils.getClopperPearsonInterval(trials, successes, confidenceLevel)); |
| } |
| |
| @Test |
| public void testNormalApproximation() { |
| checkConfidenceIntervals(new NormalApproximationInterval().createInterval(trials, successes, confidenceLevel), |
| IntervalUtils.getNormalApproximationInterval(trials, successes, confidenceLevel)); |
| } |
| |
| @Test |
| public void testWilsonScore() { |
| checkConfidenceIntervals(new WilsonScoreInterval().createInterval(trials, successes, confidenceLevel), |
| IntervalUtils.getWilsonScoreInterval(trials, successes, confidenceLevel)); |
| } |
| |
| private void checkConfidenceIntervals(ConfidenceInterval expected, ConfidenceInterval actual) { |
| Assert.assertEquals(expected.getLowerBound(), actual.getLowerBound(), eps); |
| Assert.assertEquals(expected.getUpperBound(), actual.getUpperBound(), eps); |
| Assert.assertEquals(expected.getConfidenceLevel(), actual.getConfidenceLevel(), eps); |
| } |
| } |