package ch.epfl.alpano.dem;

import static java.lang.Math.toRadians;
import static org.junit.Assert.*;
import java.io.File;
import org.junit.Test;

import ch.epfl.alpano.GeoPoint;

public class ElevationProfileTest {

    final static File HGT_FILE = new File("HGT"+File.separatorChar+"N46E006.hgt");
    final static double AZIMUTH = toRadians(45.0);
    final static double LONGITUDE = toRadians(6.0);
    final static double LATITUDE = toRadians(46.0);
    final static int LENGTH = 111_000;

    @Test
    public void testElevationProfile() {
        DiscreteElevationModel dDEM =
                new HgtDiscreteElevationModel(HGT_FILE);
        ContinuousElevationModel cDEM =
                new ContinuousElevationModel(dDEM);
        GeoPoint o =
                new GeoPoint(LONGITUDE, LATITUDE);
        ElevationProfile p =
                new ElevationProfile(cDEM, o, AZIMUTH, LENGTH);
        
        assertEquals(toRadians(6.09385),p.positionAt(10240).longitude(),0.00001);
        assertEquals(toRadians(46.06508),p.positionAt(10240).latitude(),0.00001);

    }
    /*
    @Test
    public void testElevationAt() {
        fail("Not yet implemented");
    }

    @Test
    public void testPositionAt() {
        fail("Not yet implemented");
    }

    @Test
    public void testSlopeAt() {
        fail("Not yet implemented");
    }
     */
}