/* 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.orbits;
  
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.params.ParameterizedTest;
  import org.junit.jupiter.params.provider.EnumSource;
  import org.junit.jupiter.params.provider.ValueSource;
  import org.orekit.errors.OrekitException;
  import org.orekit.errors.OrekitMessages;
  
  class EquinoctialLongitudeArgumentUtilityTest {
  
      private static final double EX = 0.1;
      private static final double EY = 0.66;
      private static final double TOLERANCE = 1e-10;
      
      @Test
      void testMeanToTrueAndBack() {
          // GIVEN
          final double expectedLongitudeArgument = 3.;
          // WHEN
          final double intermediateLongitudeArgument = EquinoctialLongitudeArgumentUtility.meanToTrue(EX, EY,
                  expectedLongitudeArgument);
          final double actualLongitudeArgument = EquinoctialLongitudeArgumentUtility.trueToMean(EX, EY,
                  intermediateLongitudeArgument);
          // THEN
          Assertions.assertEquals(expectedLongitudeArgument, actualLongitudeArgument, TOLERANCE);
      }
  
      @Test
      void testEccentricToTrueAndBack() {
          // GIVEN
          final double expectedLongitudeArgument = 3.;
          // WHEN
          final double intermediateLongitudeArgument = EquinoctialLongitudeArgumentUtility.eccentricToTrue(EX, EY,
                  expectedLongitudeArgument);
          final double actualLongitudeArgument = EquinoctialLongitudeArgumentUtility.trueToEccentric(EX, EY,
                  intermediateLongitudeArgument);
          // THEN
          Assertions.assertEquals(expectedLongitudeArgument, actualLongitudeArgument, TOLERANCE);
      }
  
      @Test
      void testEccentricToMeanAndBack() {
          // GIVEN
          final double expectedLongitudeArgument = 3.;
          // WHEN
          final double intermediateLongitudeArgument = EquinoctialLongitudeArgumentUtility.eccentricToMean(EX, EY,
                  expectedLongitudeArgument);
          final double actualLongitudeArgument = EquinoctialLongitudeArgumentUtility.meanToEccentric(EX, EY,
                  intermediateLongitudeArgument);
          // THEN
          Assertions.assertEquals(expectedLongitudeArgument, actualLongitudeArgument, TOLERANCE);
      }
  
      @Test
      void testMeanToEccentricException() {
          // GIVEN
          final double nanLongitudeArgument = Double.NaN;
          // WHEN & THEN
          Assertions.assertThrows(OrekitException.class, () -> EquinoctialLongitudeArgumentUtility.meanToEccentric(EX, EY,
                  nanLongitudeArgument), OrekitMessages.UNABLE_TO_COMPUTE_ECCENTRIC_LONGITUDE_ARGUMENT.toString());
      }
  
      @ParameterizedTest
      @EnumSource(PositionAngleType.class)
      void testConvertL(final PositionAngleType inputType) {
          // GIVEN
          final double expectedLongitudeArgument = 3.;
          final PositionAngleType intermediateType = PositionAngleType.ECCENTRIC;
          // WHEN
          final double intermediateLongitudeArgument = EquinoctialLongitudeArgumentUtility.convertL(inputType,
                  expectedLongitudeArgument, EX, EY, intermediateType);
          final double actualLongitudeArgument = EquinoctialLongitudeArgumentUtility.convertL(intermediateType,
                  intermediateLongitudeArgument, EX, EY, inputType);
          // THEN
          Assertions.assertEquals(expectedLongitudeArgument, actualLongitudeArgument, TOLERANCE);
      }
  
      @ParameterizedTest
      @ValueSource(doubles = {1e3, 5e3, 1e4, 1e5, 5e5})
      void testIssue1525(final double lM) {
          final double ex = 0.44940492906694396;
         final double ey = 0.56419162961687;
         Assertions.assertDoesNotThrow(() -> EquinoctialLongitudeArgumentUtility.meanToEccentric(ex, ey, lM));
     }
 }