/*
    * 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.hipparchus.ode.EquationsMapper;
  import org.hipparchus.ode.ODEStateAndDerivative;
  import org.junit.Test;
  
  public class EulerStateInterpolatorTest extends RungeKuttaStateInterpolatorAbstractTest {
  
      @Override
      protected RungeKuttaStateInterpolator
          createInterpolator(boolean forward, double[][] yDotK,
                             ODEStateAndDerivative globalPreviousState,
                             ODEStateAndDerivative globalCurrentState,
                             ODEStateAndDerivative softPreviousState,
                             ODEStateAndDerivative softCurrentState,
                             EquationsMapper mapper) {
          return new EulerStateInterpolator(forward, yDotK,
                                           globalPreviousState, globalCurrentState,
                                           softPreviousState, softCurrentState,
                                           mapper);
      }
  
      @Override
      protected ButcherArrayProvider createButcherArrayProvider() {
          return new EulerIntegrator(1.0);
      }
  
      @Test
      public void interpolationAtBounds() {
          doInterpolationAtBounds(1.0e-15);
      }
  
      @Test
      public void interpolationInside() {
          doInterpolationInside(3.3e-4, 7.9e-3);
      }
  
      @Override
      public void restrictPrevious() {
          doRestrictPrevious(1.0e-15, 1.0e-15);
      }
  
      @Override
      public void restrictCurrent() {
          doRestrictCurrent(1.0e-15, 1.0e-15);
      }
  
      @Override
      public void restrictBothEnds() {
          doRestrictBothEnds(1.0e-15, 1.0e-15);
      }
  
      @Override
      public void degenerateInterpolation() {
          doDegenerateInterpolation();
      }
  
  }