package org.orekit.utils;
   
   import org.hipparchus.geometry.euclidean.threed.Vector3D;
   import org.junit.jupiter.api.Test;
   import org.orekit.frames.Frame;
   import org.orekit.frames.FramesFactory;
   import org.orekit.time.AbsoluteDate;
   import org.orekit.time.TimeInterval;
   
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  class BoundedPVCoordinatesProviderTest {
  
      @Test
      void testOf() {
          // GIVEN
          final TestProvider provider = new TestProvider();
          final AbsoluteDate minDate = AbsoluteDate.J2000_EPOCH;
          final AbsoluteDate maxDate = minDate.shiftedBy(1);
          final TimeInterval interval = TimeInterval.of(minDate, maxDate);
          // WHEN
          final BoundedPVCoordinatesProvider boundedProvider = BoundedPVCoordinatesProvider.of(provider, interval);
          // THEN
          assertEquals(maxDate, boundedProvider.getMaxDate());
          assertEquals(minDate, boundedProvider.getMinDate());
          final Frame frame = FramesFactory.getGCRF();
          assertEquals(provider.getPosition(minDate, frame), boundedProvider.getPosition(minDate, frame));
          assertEquals(provider.getPVCoordinates(minDate, frame).getVelocity(),
                  boundedProvider.getPVCoordinates(minDate, frame).getVelocity());
      }
  
      private static class TestProvider implements PVCoordinatesProvider {
          @Override
          public TimeStampedPVCoordinates getPVCoordinates(AbsoluteDate date, Frame frame) {
              return new TimeStampedPVCoordinates(date, new PVCoordinates(Vector3D.MINUS_I, Vector3D.MINUS_K));
          }
      }
  }