    1   /*
    2    *
    3    * Copyright 2004 The Apache Software Foundation
    4    *
    5    *  Licensed under the Apache License, Version 2.0 (the "License");
    6    *  you may not use this file except in compliance with the License.
    7    *  You may obtain a copy of the License at
    8    *
    9    *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   *  Unless required by applicable law or agreed to in writing, software
    12   *  distributed under the License is distributed on an "AS IS" BASIS,
    13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   *  See the License for the specific language governing permissions and
    15   *  limitations under the License.
    16   */
    17
    18  package org.apache.commons.math.analysis;
    19
    20  import junit.framework.TestCase;
    21
    22  /***
    23   * @version $Revision: 1.1 $ $Date: 2004/04/27 16:42:32 $
    24   */
    25  public class UnivariateRealSolverFactoryImplTest extends TestCase {
    26
    27      /*** solver factory */
    28      private UnivariateRealSolverFactory factory;
    29
    30      /*** function */
    31      private DifferentiableUnivariateRealFunction function;
    32      /***
    33       * @throws java.lang.Exception
    34       * @see junit.framework.TestCase#tearDown()
    35       */
    36      protected void setUp() throws Exception {
    37          super.setUp();
    38          factory = new UnivariateRealSolverFactoryImpl();
    39          function = new SinFunction();
    40      }
    41
    42      /***
    43       * @throws java.lang.Exception
    44       * @see junit.framework.TestCase#tearDown()
    45       */
    46      protected void tearDown() throws Exception {
    47          factory = null;
    48          function = null;
    49          super.tearDown();
    50      }
    51
    52      public void testNewBisectionSolverNull() {
    53          try {
    54              UnivariateRealSolver solver = factory.newBisectionSolver(null);
    55              fail();
    56          } catch(IllegalArgumentException ex) {
    57              // success
    58          }
    59      }
    60
    61      public void testNewBisectionSolverValid() {
    62          UnivariateRealSolver solver = factory.newBisectionSolver(function);
    63          assertNotNull(solver);
    64          assertTrue(solver instanceof BisectionSolver);
    65      }
    66
    67      public void testNewNewtonSolverNull() {
    68          try {
    69              UnivariateRealSolver solver = factory.newNewtonSolver(null);
    70              fail();
    71          } catch(IllegalArgumentException ex) {
    72              // success
    73          }
    74      }
    75
    76      public void testNewNewtonSolverValid() {
    77          UnivariateRealSolver solver = factory.newNewtonSolver(function);
    78          assertNotNull(solver);
    79          assertTrue(solver instanceof NewtonSolver);
    80      }
    81
    82      public void testNewBrentSolverNull() {
    83          try {
    84              UnivariateRealSolver solver = factory.newBrentSolver(null);
    85              fail();
    86          } catch(IllegalArgumentException ex) {
    87              // success
    88          }
    89      }
    90
    91      public void testNewBrentSolverValid() {
    92          UnivariateRealSolver solver = factory.newBrentSolver(function);
    93          assertNotNull(solver);
    94          assertTrue(solver instanceof BrentSolver);
    95      }
    96
    97      public void testNewSecantSolverNull() {
    98          try {
    99              UnivariateRealSolver solver = factory.newSecantSolver(null);
    100             fail();
    101         } catch(IllegalArgumentException ex) {
    102             // success
    103         }
    104     }
    105
    106     public void testNewSecantSolverValid() {
    107         UnivariateRealSolver solver = factory.newSecantSolver(function);
    108         assertNotNull(solver);
    109         assertTrue(solver instanceof SecantSolver);
    110     }
    111 }