/* Copyright 2022-2025 Romain Serra
    * Licensed to CS GROUP (CS) under one or more
    * contributor license agreements.  See the NOTICE file distributed with
    * this work for additional information regarding copyright ownership.
    * CS 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.orekit.control.indirect.adjoint.cost;
  
  import org.hipparchus.ode.events.Action;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  import org.orekit.propagation.events.EventDetector;
  
  import java.util.List;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  
  class UnboundedCartesianEnergyTest {
  
      @Test
      void testGetMassFlowRateFactor() {
          // GIVEN
          final double expectedRateFactor = 1.;
          final UnboundedCartesianEnergy unboundedCartesianEnergy = new UnboundedCartesianEnergy("", expectedRateFactor);
          // WHEN
          final double actualRateFactor = unboundedCartesianEnergy.getMassFlowRateFactor();
          // THEN
          Assertions.assertEquals(expectedRateFactor, actualRateFactor);
      }
  
      @Test
      void getEventDetectorsSizeAndActionTest() {
          // GIVEN
          final double massFlowRateFactor = 1.;
          final UnboundedCartesianEnergy unboundedCartesianEnergy = new UnboundedCartesianEnergy("", massFlowRateFactor);
          // WHEN
          final Stream<EventDetector> eventDetectorStream = unboundedCartesianEnergy.getEventDetectors();
          // THEN
          final List<EventDetector> eventDetectors = eventDetectorStream.collect(Collectors.toList());
          Assertions.assertEquals(1, eventDetectors.size());
          Assertions.assertInstanceOf(CartesianEnergyConsideringMass.SingularityDetector.class, eventDetectors.get(0));
          final CartesianEnergyConsideringMass.SingularityDetector singularityDetector =
                  (CartesianEnergyConsideringMass.SingularityDetector) eventDetectors.get(0);
          Assertions.assertEquals(Action.RESET_DERIVATIVES, singularityDetector.getHandler().eventOccurred(null, null, false));
      }
  
  }