@Test
public void testFindAngle() {

    Coordinate coord0 = new Coordinate(0, 0);
    Coordinate coord1 = new Coordinate(5, 5);
    double expResult = Math.PI / 4; //45 degrees from x-axis.
    double result = GMLReader.findAngle(coord0, coord1);
    //
    //
    assertEquals(expResult, result, 0.0);
}