/*
    * Licensed to the Hipparchus project under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * The Hipparchus project 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
    *
    *      https://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.hipparchus.ode.nonstiff;
  
  import org.junit.Test;
  
  
  public class DormandPrince853IntegratorTest extends EmbeddedRungeKuttaIntegratorAbstractTest {
  
      protected EmbeddedRungeKuttaIntegrator
      createIntegrator(final double minStep, final double maxStep,
                       final double scalAbsoluteTolerance, final double scalRelativeTolerance) {
          return new DormandPrince853Integrator(minStep, maxStep, scalAbsoluteTolerance, scalRelativeTolerance);
      }
  
      protected EmbeddedRungeKuttaIntegrator
      createIntegrator(final double minStep, final double maxStep,
                       final double[] vecAbsoluteTolerance, final double[] vecRelativeTolerance) {
          return new DormandPrince853Integrator(minStep, maxStep, vecAbsoluteTolerance, vecRelativeTolerance);
      }
  
      @Override
      public void testBackward() {
          doTestBackward(8.1e-8, 1.1e-7, 1.0e-12, "Dormand-Prince 8 (5, 3)");
      }
  
      @Override
      public void testKepler() {
          doTestKepler(4.4e-11);
      }
  
      @Override
      public void testTorqueFreeMotionOmegaOnly() {
          doTestTorqueFreeMotionOmegaOnly(4.0e-16);
      }
  
      @Override
      public void testTorqueFreeMotion() {
          doTestTorqueFreeMotion(1.3e-12, 9.0e-12);
      }
  
      @Override
      public void testTorqueFreeMotionIssue230() {
          doTestTorqueFreeMotionIssue230(2.9e-14, 7.8e-14);
      }
  
      @Override
      public void testForwardBackwardExceptions() {
          doTestForwardBackwardExceptions();
      }
  
      @Override
      public void testIncreasingTolerance() {
          // the 1.3 factor is only valid for this test
          // and has been obtained from trial and error
          // there is no general relation between local and global errors
          doTestIncreasingTolerance(1.3, 1.0e-12);
      }
  
      @Override
      public void testEvents() {
          doTestEvents(2.1e-7, "Dormand-Prince 8 (5, 3)");
      }
  
      @Override
      public void testStepEnd() {
          doTestStepEnd(20, "Dormand-Prince 8 (5, 3)");
      }
  
      @Override
      public void testStopAfterStep() {
          doTestStopAfterStep(12, 6.842171);
      }
  
      @Override
      public void testResetAfterStep() {
          doTestResetAfterStep(12, 13);
      }
  
      @Test
      public void testMissedEndEvent() {
          doTestMissedEndEvent(1.0e-15, 1.0e-15);
      }
  
     @Test
     public void testVariableSteps() {
         doTestVariableSteps(0.00763, 0.836);
     }
 
     @Test
     public void testUnstableDerivative() {
      doTestUnstableDerivative(1.0e-12);
     }
 
     @Override
     public void testPartialDerivatives() {
         doTestPartialDerivatives(2.6e-12, 2.0e-11);
     }
 
     @Test
     public void testSecondaryEquations() {
         doTestSecondaryEquations(3.3e-12, 8.9e-15);
     }
 
 }