/* Copyright 2022-2026 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.estimation.measurements.modifiers;
  
  import org.junit.jupiter.api.Test;
  import org.orekit.TestUtils;
  import org.orekit.estimation.measurements.AngularAzEl;
  import org.orekit.estimation.measurements.EstimatedMeasurementBase;
  import org.orekit.estimation.measurements.GroundStation;
  import org.orekit.estimation.measurements.ObservableSatellite;
  import org.orekit.models.AtmosphericRefractionModel;
  import org.orekit.propagation.SpacecraftState;
  import org.orekit.time.AbsoluteDate;
  import org.orekit.utils.TimeStampedPVCoordinates;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.when;
  
  class AngularRadioRefractionModifierTest {
  
      @Test
      void testModifyWithoutDerivatives() {
          // GIVEN
          final SpacecraftState state = new SpacecraftState(TestUtils.getDefaultOrbit(AbsoluteDate.ARBITRARY_EPOCH));
          final GroundStation station = mock();
          final AngularAzEl angularAzEl = new AngularAzEl(station, AbsoluteDate.ARBITRARY_EPOCH, new double[2], new double[2], new double[2], new ObservableSatellite(0));
          final EstimatedMeasurementBase<AngularAzEl> estimated = new EstimatedMeasurementBase<>(angularAzEl, 0, 0,
                  new SpacecraftState[] {state}, new TimeStampedPVCoordinates[]{state.getPVCoordinates()});
          final double elevation = 1.;
          estimated.setEstimatedValue(2.0, elevation);
          final AtmosphericRefractionModel refractionModel = mock();
          final AngularRadioRefractionModifier modifier = new AngularRadioRefractionModifier(refractionModel);
          final double expectedRefraction = 0.1;
          when(refractionModel.getRefraction(any(Double.class))).thenReturn(expectedRefraction);
          // WHEN
          modifier.modifyWithoutDerivatives(estimated);
          // THEN
          assertEquals(expectedRefraction, estimated.getEstimatedValue()[1] - elevation, 1e-15);
      }
  }