/* 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.forces.gravity;
  
  import org.hipparchus.CalculusFieldElement;
  import org.hipparchus.geometry.euclidean.threed.FieldVector3D;
  import org.hipparchus.geometry.euclidean.threed.Vector3D;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  import org.mockito.Mockito;
  import org.orekit.bodies.CelestialBody;
  import org.orekit.frames.Frame;
  import org.orekit.propagation.FieldSpacecraftState;
  import org.orekit.propagation.SpacecraftState;
  import org.orekit.time.AbsoluteDate;
  import org.orekit.time.FieldAbsoluteDate;
  import org.orekit.utils.PVCoordinates;
  import org.orekit.utils.TimeStampedPVCoordinates;
  
  class AbstractBodyAttractionTest {
  
      @Test
      void testDependsOnPositionOnly() {
          // GIVEN
          final AbstractBodyAttraction mockedAttraction = Mockito.mock(AbstractBodyAttraction.class);
          Mockito.when(mockedAttraction.dependsOnPositionOnly()).thenCallRealMethod();
          // WHEN
          final boolean actualDependsOnPositionOnly = mockedAttraction.dependsOnPositionOnly();
          // THEN
          Assertions.assertTrue(actualDependsOnPositionOnly);
      }
  
      @Test
      void TestGetBodyName() {
          // GIVEN
          final String expectedName = "Moon";
          final CelestialBody mockedBody = Mockito.mock(CelestialBody.class);
          Mockito.when(mockedBody.getName()).thenReturn(expectedName);
          final TestBodyAttraction testBodyAttraction = new TestBodyAttraction(mockedBody);
          // WHEN
          final String actualName = testBodyAttraction.getBodyName();
          // THEN
          Assertions.assertEquals(expectedName, actualName);
      }
  
      @Test
      void testGetPV() {
          // GIVEN
          final CelestialBody mockedBody = Mockito.mock(CelestialBody.class);
          final AbsoluteDate date = AbsoluteDate.ARBITRARY_EPOCH;
          final Frame mockedFrame = Mockito.mock(Frame.class);
          final TimeStampedPVCoordinates expectedPV = Mockito.mock(TimeStampedPVCoordinates.class);
          Mockito.when(mockedBody.getPVCoordinates(date, mockedFrame)).thenReturn(expectedPV);
          final TestBodyAttraction testBodyAttraction = new TestBodyAttraction(mockedBody);
          // WHEN
          final PVCoordinates actualPV = testBodyAttraction.getBodyPVCoordinates(date, mockedFrame);
          // THEN
          Assertions.assertEquals(expectedPV, actualPV);
      }
  
      @Test
      void testGetPosition() {
          // GIVEN
          final CelestialBody mockedBody = Mockito.mock(CelestialBody.class);
          final AbsoluteDate date = AbsoluteDate.ARBITRARY_EPOCH;
          final Frame mockedFrame = Mockito.mock(Frame.class);
          final Vector3D expectedPosition = new Vector3D(1, 2, 3);
          Mockito.when(mockedBody.getPosition(date, mockedFrame)).thenReturn(expectedPosition);
          final TestBodyAttraction testBodyAttraction = new TestBodyAttraction(mockedBody);
          // WHEN
          final Vector3D actualPosition = testBodyAttraction.getBodyPosition(date, mockedFrame);
          // THEN
          Assertions.assertEquals(expectedPosition, actualPosition);
      }
  
      @Test
      void testGetFieldPosition() {
          // GIVEN
          final CelestialBody mockedBody = Mockito.mock(CelestialBody.class);
          final FieldAbsoluteDate<?> mockedDate = Mockito.mock(FieldAbsoluteDate.class);
          final Frame mockedFrame = Mockito.mock(Frame.class);
          final FieldVector3D expectedPosition = Mockito.mock(FieldVector3D.class);
          Mockito.when(mockedBody.getPosition(mockedDate, mockedFrame)).thenReturn(expectedPosition);
          final TestBodyAttraction testBodyAttraction = new TestBodyAttraction(mockedBody);
          // WHEN
         final FieldVector3D<?> actualPosition = testBodyAttraction.getBodyPosition(mockedDate, mockedFrame);
         // THEN
         Assertions.assertEquals(expectedPosition, actualPosition);
     }
 
     private static class TestBodyAttraction extends AbstractBodyAttraction {
 
         protected TestBodyAttraction(CelestialBody body) {
             super(body, body.getName(), body.getGM());
         }
 
         @Override
         public Vector3D acceleration(SpacecraftState s, double[] parameters) {
             return null;
         }
 
         @Override
         public <T extends CalculusFieldElement<T>> FieldVector3D<T> acceleration(FieldSpacecraftState<T> s, T[] parameters) {
             return null;
         }
     }
 
 }