@Test
public void testElevationDirectionExtraction() throws Exception {

    Survey survey = new Survey("Test");
    TherionImporter.updateCentreline(LINES, survey);
    Station stationTwo = survey.getStationByName("2");
    Direction stationTwoDirection = stationTwo.getExtendedElevationDirection();
    Assert.assertEquals(Direction.LEFT, stationTwoDirection);
    Station stationThree = survey.getStationByName("3");
    Direction stationThreeDirection = stationThree.getExtendedElevationDirection();
    Assert.assertEquals(Direction.LEFT, stationThreeDirection);
    Station stationFive = survey.getStationByName("5");
    Direction stationFiveDirection = stationFive.getExtendedElevationDirection();
    Assert.assertEquals(Direction.RIGHT, stationFiveDirection);
}