1   /* Copyright 2022-2025 Romain Serra
2    * Licensed to CS GROUP (CS) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * CS licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  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  package org.orekit.control.indirect.adjoint.cost;
18  
19  import org.hipparchus.geometry.euclidean.threed.Vector3D;
20  import org.junit.jupiter.api.Assertions;
21  import org.junit.jupiter.api.Test;
22  import org.mockito.Mockito;
23  
24  class UnboundedCartesianEnergyNeglectingMassTest {
25  
26      @Test
27      void testGetHamiltonianContribution() {
28          // GIVEN
29          final UnboundedCartesianEnergy mockedEnergy = Mockito.mock(UnboundedCartesianEnergy.class);
30          final Vector3D vector = new Vector3D(1.0, 2.0, 3.0);
31          final double mass = 1.;
32          final double[] adjoint = new double[6];
33          Mockito.when(mockedEnergy.getThrustAccelerationVector(adjoint, mass)).thenReturn(vector);
34          Mockito.when(mockedEnergy.getHamiltonianContribution(adjoint, mass)).thenCallRealMethod();
35          // WHEN
36          final double contribution = mockedEnergy.getHamiltonianContribution(adjoint, mass);
37          // THEN
38          Assertions.assertEquals(-vector.getNormSq() * 0.5, contribution);
39      }
40  
41  
42  }