/*
    * 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.math4.legacy.stat.interval;
  
  import org.apache.commons.math4.legacy.exception.MathIllegalArgumentException;
  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>
       *  <li>successes: 50</li>
       *  <li>confidenceLevel: 0.9</li>
       * </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);
      }
  }