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Java example source code file (BinomialConfidenceIntervalAbstractTest.java)

This example Java source code file (BinomialConfidenceIntervalAbstractTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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Java - Java tags/keywords

before, binomialconfidenceinterval, binomialconfidenceintervalabstracttest, test

The BinomialConfidenceIntervalAbstractTest.java Java example 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.math3.stat.interval;

import org.apache.commons.math3.exception.MathIllegalArgumentException;
import org.apache.commons.math3.stat.interval.BinomialConfidenceInterval;
import org.apache.commons.math3.stat.interval.ConfidenceInterval;
import org.junit.Before;
import org.junit.Test;

/**
 * Test cases for the BinomialConfidenceInterval implementations.
 *
 */
public abstract class BinomialConfidenceIntervalAbstractTest {

    protected BinomialConfidenceInterval testStatistic;

    private final int successes = 50;
    private final int trials = 500;
    private final double confidenceLevel = 0.9;

    protected abstract BinomialConfidenceInterval createBinomialConfidenceInterval();

    /**
     * Returns the confidence interval for the given statistic with the following values:
     *
     * <ul>
     *  <li>trials: 500
     *  <li>successes: 50
     *  <li>confidenceLevel: 0.9
     * </ul>
     * @return the Confidence Interval for the given values
     */
    protected ConfidenceInterval createStandardTestInterval() {
        return testStatistic.createInterval(trials, successes, confidenceLevel);
    }

    @Before
    public void setUp() {
        testStatistic = createBinomialConfidenceInterval();
    }

    @Test(expected = MathIllegalArgumentException.class)
    public void testZeroConfidencelevel() {
        testStatistic.createInterval(trials, successes, 0d);
    }

    @Test(expected = MathIllegalArgumentException.class)
    public void testOneConfidencelevel() {
        testStatistic.createInterval(trials, successes, 1d);
    }

    @Test(expected = MathIllegalArgumentException.class)
    public void testZeroTrials() {
        testStatistic.createInterval(0, 0, confidenceLevel);
    }

    @Test(expected = MathIllegalArgumentException.class)
    public void testNegativeSuccesses() {
        testStatistic.createInterval(trials, -1, confidenceLevel);
    }

    @Test(expected = MathIllegalArgumentException.class)
    public void testSuccessesExceedingTrials() {
        testStatistic.createInterval(trials, trials + 1, confidenceLevel);
    }
}

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